Merge branch 'release/1.1.0'

CHANGELOG.md

@@ -1,6 +1,23 @@
 # Changelog
 This is the changelog for NeoFS-API-Go
 
+## [1.1.0] - 2020-06-18
+
+### Added
+
+- `container.SetExtendedACL` rpc.
+- `container.GetExtendedACL` rpc.
+- Bearer token to all request messages.
+- X-headers to all request messages.
+
+### Changed
+
+- Implementation and signatures of Sign/Verify request functions.
+
+### Updated
+
+- NeoFS API v1.0.0 => 1.1.0
+
 ## [1.0.0] - 2020-05-26
 
 - Bump major release
@@ -339,3 +356,4 @@ Initial public release
 [0.7.5]: https://github.com/nspcc-dev/neofs-api-go/compare/v0.7.4...v0.7.5
 [0.7.6]: https://github.com/nspcc-dev/neofs-api-go/compare/v0.7.5...v0.7.6
 [1.0.0]: https://github.com/nspcc-dev/neofs-api-go/compare/v0.7.6...v1.0.0
+[1.1.0]: https://github.com/nspcc-dev/neofs-api-go/compare/v1.0.0...v1.1.0

Makefile

@@ -1,4 +1,4 @@
-PROTO_VERSION=v1.0.0
+PROTO_VERSION=v1.1.0
 PROTO_URL=https://github.com/nspcc-dev/neofs-api/archive/$(PROTO_VERSION).tar.gz
 
 B=\033[0;1m

README.md

@@ -11,6 +11,12 @@
 NeoFS API repository contains implementation of core NeoFS structures that
 can be used for integration with NeoFS. 
 
+## Сompatibility
+
+[neofs-api v1.1.0]: https://github.com/nspcc-dev/neofs-api/releases/tag/v1.1.0
+[neofs-api-go v1.1.0]: https://github.com/nspcc-dev/neofs-api-go/releases/tag/v1.1.0
+[neofs-api-go v1.1.0] supports [neofs-api v1.1.0]
+
 ## Description
 
 Repository contains 13 packages that implement NeoFS core structures. These

accounting/sign_test.go

@@ -13,7 +13,7 @@ func TestSignBalanceRequest(t *testing.T) {
 	sk := test.DecodeKey(0)
 
 	type sigType interface {
-		service.SignedDataWithToken
+		service.RequestData
 		service.SignKeyPairAccumulator
 		service.SignKeyPairSource
 		SetToken(*service.Token)
@@ -159,26 +159,26 @@ func TestSignBalanceRequest(t *testing.T) {
 			token := new(service.Token)
 			v.SetToken(token)
 
-			require.NoError(t, service.SignDataWithSessionToken(sk, v))
+			require.NoError(t, service.SignRequestData(sk, v))
 
-			require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.NoError(t, service.VerifyRequestData(v))
 
 			token.SetSessionKey(append(token.GetSessionKey(), 1))
 
-			require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.Error(t, service.VerifyRequestData(v))
 		}
 
 		{ // payload corruptions
 			for _, corruption := range item.payloadCorrupt {
 				v := item.constructor()
 
-				require.NoError(t, service.SignDataWithSessionToken(sk, v))
+				require.NoError(t, service.SignRequestData(sk, v))
 
-				require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.NoError(t, service.VerifyRequestData(v))
 
 				corruption(v)
 
-				require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.Error(t, service.VerifyRequestData(v))
 			}
 		}
 	}

bootstrap/sign_test.go

@@ -12,7 +12,7 @@ func TestRequestSign(t *testing.T) {
 	sk := test.DecodeKey(0)
 
 	type sigType interface {
-		service.SignedDataWithToken
+		service.RequestData
 		service.SignKeyPairAccumulator
 		service.SignKeyPairSource
 		SetToken(*service.Token)
@@ -56,26 +56,26 @@ func TestRequestSign(t *testing.T) {
 			token := new(service.Token)
 			v.SetToken(token)
 
-			require.NoError(t, service.SignDataWithSessionToken(sk, v))
+			require.NoError(t, service.SignRequestData(sk, v))
 
-			require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.NoError(t, service.VerifyRequestData(v))
 
 			token.SetSessionKey(append(token.GetSessionKey(), 1))
 
-			require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.Error(t, service.VerifyRequestData(v))
 		}
 
 		{ // payload corruptions
 			for _, corruption := range item.payloadCorrupt {
 				v := item.constructor()
 
-				require.NoError(t, service.SignDataWithSessionToken(sk, v))
+				require.NoError(t, service.SignRequestData(sk, v))
 
-				require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.NoError(t, service.VerifyRequestData(v))
 
 				corruption(v)
 
-				require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.Error(t, service.VerifyRequestData(v))
 			}
 		}
 	}

container/service.proto

@@ -27,6 +27,12 @@ service Service {
 
     // List returns all user's containers
     rpc List(ListRequest) returns (ListResponse);
+
+    // SetExtendedACL changes extended ACL rules of the container
+    rpc SetExtendedACL(SetExtendedACLRequest) returns (SetExtendedACLResponse);
+
+    // GetExtendedACL returns extended ACL rules of the container
+    rpc GetExtendedACL(GetExtendedACLRequest) returns (GetExtendedACLResponse);
 }
 
 message PutRequest {
@@ -99,3 +105,42 @@ message ListResponse {
     // CID (container id) is list of SHA256 hashes of the container structures
     repeated bytes CID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false];
 }
+
+message ExtendedACLKey {
+    // ID (container id) is a SHA256 hash of the container structure
+    bytes ID = 1 [(gogoproto.customtype) = "CID", (gogoproto.nullable) = false];
+}
+
+message ExtendedACLValue {
+    // EACL carries binary representation of the table of extended ACL rules
+    bytes EACL      = 1;
+    // Signature carries EACL field signature
+    bytes Signature = 2;
+}
+
+message SetExtendedACLRequest {
+    // Key carries key to extended ACL information
+    ExtendedACLKey Key                       = 1 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+    // Value carries extended ACL information
+    ExtendedACLValue Value                   = 2 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+    // RequestMetaHeader contains information about request meta headers (should be embedded into message)
+    service.RequestMetaHeader Meta           = 98 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+    // RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message)
+    service.RequestVerificationHeader Verify = 99 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+}
+
+message SetExtendedACLResponse {}
+
+message GetExtendedACLRequest {
+    // Key carries key to extended ACL information
+    ExtendedACLKey Key                       = 1 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+    // RequestMetaHeader contains information about request meta headers (should be embedded into message)
+    service.RequestMetaHeader Meta           = 98 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+    // RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message)
+    service.RequestVerificationHeader Verify = 99 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+}
+
+message GetExtendedACLResponse {
+    // ACL carries extended ACL information
+    ExtendedACLValue ACL = 1 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+}

container/sign.go

@@ -135,3 +135,60 @@ func (m ListRequest) ReadSignedData(p []byte) (int, error) {
 
 	return off, nil
 }
+
+// SignedData returns payload bytes of the request.
+func (m GetExtendedACLRequest) SignedData() ([]byte, error) {
+	return service.SignedDataFromReader(m)
+}
+
+// SignedDataSize returns payload size of the request.
+func (m GetExtendedACLRequest) SignedDataSize() int {
+	return m.GetID().Size()
+}
+
+// ReadSignedData copies payload bytes to passed buffer.
+//
+// If the Request size is insufficient, io.ErrUnexpectedEOF returns.
+func (m GetExtendedACLRequest) ReadSignedData(p []byte) (int, error) {
+	if len(p) < m.SignedDataSize() {
+		return 0, io.ErrUnexpectedEOF
+	}
+
+	var off int
+
+	off += copy(p[off:], m.GetID().Bytes())
+
+	return off, nil
+}
+
+// SignedData returns payload bytes of the request.
+func (m SetExtendedACLRequest) SignedData() ([]byte, error) {
+	return service.SignedDataFromReader(m)
+}
+
+// SignedDataSize returns payload size of the request.
+func (m SetExtendedACLRequest) SignedDataSize() int {
+	return 0 +
+		m.GetID().Size() +
+		len(m.GetEACL()) +
+		len(m.GetSignature())
+}
+
+// ReadSignedData copies payload bytes to passed buffer.
+//
+// If the Request size is insufficient, io.ErrUnexpectedEOF returns.
+func (m SetExtendedACLRequest) ReadSignedData(p []byte) (int, error) {
+	if len(p) < m.SignedDataSize() {
+		return 0, io.ErrUnexpectedEOF
+	}
+
+	var off int
+
+	off += copy(p[off:], m.GetID().Bytes())
+
+	off += copy(p[off:], m.GetEACL())
+
+	off += copy(p[off:], m.GetSignature())
+
+	return off, nil
+}

container/sign_test.go

@@ -12,7 +12,7 @@ func TestRequestSign(t *testing.T) {
 	sk := test.DecodeKey(0)
 
 	type sigType interface {
-		service.SignedDataWithToken
+		service.RequestData
 		service.SignKeyPairAccumulator
 		service.SignKeyPairSource
 		SetToken(*service.Token)
@@ -108,6 +108,50 @@ func TestRequestSign(t *testing.T) {
 				},
 			},
 		},
+		{ // GetExtendedACLRequest
+			constructor: func() sigType {
+				return new(GetExtendedACLRequest)
+			},
+			payloadCorrupt: []func(sigType){
+				func(s sigType) {
+					req := s.(*GetExtendedACLRequest)
+
+					id := req.GetID()
+					id[0]++
+
+					req.SetID(id)
+				},
+			},
+		},
+		{ // SetExtendedACLRequest
+			constructor: func() sigType {
+				return new(SetExtendedACLRequest)
+			},
+			payloadCorrupt: []func(sigType){
+				func(s sigType) {
+					req := s.(*SetExtendedACLRequest)
+
+					id := req.GetID()
+					id[0]++
+
+					req.SetID(id)
+				},
+				func(s sigType) {
+					req := s.(*SetExtendedACLRequest)
+
+					req.SetEACL(
+						append(req.GetEACL(), 1),
+					)
+				},
+				func(s sigType) {
+					req := s.(*SetExtendedACLRequest)
+
+					req.SetSignature(
+						append(req.GetSignature(), 1),
+					)
+				},
+			},
+		},
 	}
 
 	for _, item := range items {
@@ -117,26 +161,26 @@ func TestRequestSign(t *testing.T) {
 			token := new(service.Token)
 			v.SetToken(token)
 
-			require.NoError(t, service.SignDataWithSessionToken(sk, v))
+			require.NoError(t, service.SignRequestData(sk, v))
 
-			require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.NoError(t, service.VerifyRequestData(v))
 
 			token.SetSessionKey(append(token.GetSessionKey(), 1))
 
-			require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.Error(t, service.VerifyRequestData(v))
 		}
 
 		{ // payload corruptions
 			for _, corruption := range item.payloadCorrupt {
 				v := item.constructor()
 
-				require.NoError(t, service.SignDataWithSessionToken(sk, v))
+				require.NoError(t, service.SignRequestData(sk, v))
 
-				require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.NoError(t, service.VerifyRequestData(v))
 
 				corruption(v)
 
-				require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.Error(t, service.VerifyRequestData(v))
 			}
 		}
 	}

container/types.go

@@ -158,3 +158,23 @@ func (m ListRequest) GetOwnerID() OwnerID {
 func (m *ListRequest) SetOwnerID(owner OwnerID) {
 	m.OwnerID = owner
 }
+
+// GetID is an ID field getter.
+func (m ExtendedACLKey) GetID() CID {
+	return m.ID
+}
+
+// SetID is an ID field setter.
+func (m *ExtendedACLKey) SetID(v CID) {
+	m.ID = v
+}
+
+// SetEACL is an EACL field setter.
+func (m *ExtendedACLValue) SetEACL(v []byte) {
+	m.EACL = v
+}
+
+// SetSignature is a Signature field setter.
+func (m *ExtendedACLValue) SetSignature(sig []byte) {
+	m.Signature = sig
+}

container/types_test.go

@@ -140,3 +140,23 @@ func TestListRequestGettersSetters(t *testing.T) {
 		require.Equal(t, owner, m.GetOwnerID())
 	})
 }
+
+func TestExtendedACLKey(t *testing.T) {
+	s := new(ExtendedACLKey)
+
+	id := CID{1, 2, 3}
+	s.SetID(id)
+	require.Equal(t, id, s.GetID())
+}
+
+func TestExtendedACLValue(t *testing.T) {
+	s := new(ExtendedACLValue)
+
+	acl := []byte{1, 2, 3}
+	s.SetEACL(acl)
+	require.Equal(t, acl, s.GetEACL())
+
+	sig := []byte{4, 5, 6}
+	s.SetSignature(sig)
+	require.Equal(t, sig, s.GetSignature())
+}

docs/container.md

@@ -10,12 +10,18 @@
   - Messages
     - [DeleteRequest](#container.DeleteRequest)
     - [DeleteResponse](#container.DeleteResponse)
+    - [ExtendedACLKey](#container.ExtendedACLKey)
+    - [ExtendedACLValue](#container.ExtendedACLValue)
+    - [GetExtendedACLRequest](#container.GetExtendedACLRequest)
+    - [GetExtendedACLResponse](#container.GetExtendedACLResponse)
     - [GetRequest](#container.GetRequest)
     - [GetResponse](#container.GetResponse)
     - [ListRequest](#container.ListRequest)
     - [ListResponse](#container.ListResponse)
     - [PutRequest](#container.PutRequest)
     - [PutResponse](#container.PutResponse)
+    - [SetExtendedACLRequest](#container.SetExtendedACLRequest)
+    - [SetExtendedACLResponse](#container.SetExtendedACLResponse)
     
 
 - [container/types.proto](#container/types.proto)
@@ -46,6 +52,8 @@ rpc Put(PutRequest) returns (PutResponse);
 rpc Delete(DeleteRequest) returns (DeleteResponse);
 rpc Get(GetRequest) returns (GetResponse);
 rpc List(ListRequest) returns (ListResponse);
+rpc SetExtendedACL(SetExtendedACLRequest) returns (SetExtendedACLResponse);
+rpc GetExtendedACL(GetExtendedACLRequest) returns (GetExtendedACLResponse);
 
 ```
 
@@ -80,6 +88,20 @@ List returns all user's containers
 | Name | Input | Output |
 | ---- | ----- | ------ |
 | List | [ListRequest](#container.ListRequest) | [ListResponse](#container.ListResponse) |
+#### Method SetExtendedACL
+
+SetExtendedACL changes extended ACL rules of the container
+
+| Name | Input | Output |
+| ---- | ----- | ------ |
+| SetExtendedACL | [SetExtendedACLRequest](#container.SetExtendedACLRequest) | [SetExtendedACLResponse](#container.SetExtendedACLResponse) |
+#### Method GetExtendedACL
+
+GetExtendedACL returns extended ACL rules of the container
+
+| Name | Input | Output |
+| ---- | ----- | ------ |
+| GetExtendedACL | [GetExtendedACLRequest](#container.GetExtendedACLRequest) | [GetExtendedACLResponse](#container.GetExtendedACLResponse) |
  <!-- end services -->
 
 
@@ -104,6 +126,53 @@ via consensus in inner ring nodes
 
 
 
+<a name="container.ExtendedACLKey"></a>
+
+### Message ExtendedACLKey
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| ID | [bytes](#bytes) |  | ID (container id) is a SHA256 hash of the container structure |
+
+
+<a name="container.ExtendedACLValue"></a>
+
+### Message ExtendedACLValue
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| EACL | [bytes](#bytes) |  | EACL carries binary representation of the table of extended ACL rules |
+| Signature | [bytes](#bytes) |  | Signature carries EACL field signature |
+
+
+<a name="container.GetExtendedACLRequest"></a>
+
+### Message GetExtendedACLRequest
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| Key | [ExtendedACLKey](#container.ExtendedACLKey) |  | Key carries key to extended ACL information |
+| Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) |  | RequestMetaHeader contains information about request meta headers (should be embedded into message) |
+| Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) |  | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) |
+
+
+<a name="container.GetExtendedACLResponse"></a>
+
+### Message GetExtendedACLResponse
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| ACL | [ExtendedACLValue](#container.ExtendedACLValue) |  | ACL carries extended ACL information |
+
+
 <a name="container.GetRequest"></a>
 
 ### Message GetRequest
@@ -179,6 +248,27 @@ via consensus in inner ring nodes
 | ----- | ---- | ----- | ----------- |
 | CID | [bytes](#bytes) |  | CID (container id) is a SHA256 hash of the container structure |
 
+
+<a name="container.SetExtendedACLRequest"></a>
+
+### Message SetExtendedACLRequest
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| Key | [ExtendedACLKey](#container.ExtendedACLKey) |  | Key carries key to extended ACL information |
+| Value | [ExtendedACLValue](#container.ExtendedACLValue) |  | Value carries extended ACL information |
+| Meta | [service.RequestMetaHeader](#service.RequestMetaHeader) |  | RequestMetaHeader contains information about request meta headers (should be embedded into message) |
+| Verify | [service.RequestVerificationHeader](#service.RequestVerificationHeader) |  | RequestVerificationHeader is a set of signatures of every NeoFS Node that processed request (should be embedded into message) |
+
+
+<a name="container.SetExtendedACLResponse"></a>
+
+### Message SetExtendedACLResponse
+
+
+
  <!-- end messages -->
 
  <!-- end enums -->

docs/service.md

@@ -6,6 +6,8 @@
 - [service/meta.proto](#service/meta.proto)
 
   - Messages
+    - [RequestExtendedHeader](#service.RequestExtendedHeader)
+    - [RequestExtendedHeader.KV](#service.RequestExtendedHeader.KV)
     - [RequestMetaHeader](#service.RequestMetaHeader)
     - [ResponseMetaHeader](#service.ResponseMetaHeader)
     
@@ -13,6 +15,8 @@
 - [service/verify.proto](#service/verify.proto)
 
   - Messages
+    - [BearerTokenMsg](#service.BearerTokenMsg)
+    - [BearerTokenMsg.Info](#service.BearerTokenMsg.Info)
     - [RequestVerificationHeader](#service.RequestVerificationHeader)
     - [RequestVerificationHeader.Signature](#service.RequestVerificationHeader.Signature)
     - [Token](#service.Token)
@@ -39,6 +43,29 @@
  <!-- end services -->
 
 
+<a name="service.RequestExtendedHeader"></a>
+
+### Message RequestExtendedHeader
+RequestExtendedHeader contains extended headers of request
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| Headers | [RequestExtendedHeader.KV](#service.RequestExtendedHeader.KV) | repeated | Headers carries list of key-value headers |
+
+
+<a name="service.RequestExtendedHeader.KV"></a>
+
+### Message RequestExtendedHeader.KV
+KV contains string key-value pair
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| K | [string](#string) |  | K carries extended header key |
+| V | [string](#string) |  | V carries extended header value |
+
+
 <a name="service.RequestMetaHeader"></a>
 
 ### Message RequestMetaHeader
@@ -52,6 +79,7 @@ RequestMetaHeader contains information about request meta headers
 | Epoch | [uint64](#uint64) |  | Epoch for user can be empty, because node sets epoch to the actual value |
 | Version | [uint32](#uint32) |  | Version defines protocol version TODO: not used for now, should be implemented in future |
 | Raw | [bool](#bool) |  | Raw determines whether the request is raw or not |
+| ExtendedHeader | [RequestExtendedHeader](#service.RequestExtendedHeader) |  | ExtendedHeader carries extended headers of the request |
 
 
 <a name="service.ResponseMetaHeader"></a>
@@ -81,6 +109,32 @@ ResponseMetaHeader contains meta information based on request processing by serv
  <!-- end services -->
 
 
+<a name="service.BearerTokenMsg"></a>
+
+### Message BearerTokenMsg
+BearerTokenMsg carries information about request ACL rules with limited lifetime
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| TokenInfo | [BearerTokenMsg.Info](#service.BearerTokenMsg.Info) |  | TokenInfo is a grouped information about token |
+| OwnerKey | [bytes](#bytes) |  | OwnerKey is a public key of the token owner |
+| Signature | [bytes](#bytes) |  | Signature is a signature of token information |
+
+
+<a name="service.BearerTokenMsg.Info"></a>
+
+### Message BearerTokenMsg.Info
+
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| ACLRules | [bytes](#bytes) |  | ACLRules carries a binary representation of the table of extended ACL rules |
+| OwnerID | [bytes](#bytes) |  | OwnerID is an owner of token |
+| ValidUntil | [uint64](#uint64) |  | ValidUntil carries a last epoch of token lifetime |
+
+
 <a name="service.RequestVerificationHeader"></a>
 
 ### Message RequestVerificationHeader
@@ -92,6 +146,7 @@ RequestVerificationHeader is a set of signatures of every NeoFS Node that proces
 | ----- | ---- | ----- | ----------- |
 | Signatures | [RequestVerificationHeader.Signature](#service.RequestVerificationHeader.Signature) | repeated | Signatures is a set of signatures of every passed NeoFS Node |
 | Token | [Token](#service.Token) |  | Token is a token of the session within which the request is sent |
+| Bearer | [BearerTokenMsg](#service.BearerTokenMsg) |  | Bearer is a Bearer token of the request |
 
 
 <a name="service.RequestVerificationHeader.Signature"></a>

object/sign_test.go

@@ -13,7 +13,7 @@ func TestSignVerifyRequests(t *testing.T) {
 	sk := test.DecodeKey(0)
 
 	type sigType interface {
-		service.SignedDataWithToken
+		service.RequestData
 		service.SignKeyPairAccumulator
 		service.SignKeyPairSource
 		SetToken(*Token)
@@ -164,26 +164,26 @@ func TestSignVerifyRequests(t *testing.T) {
 			token := new(Token)
 			v.SetToken(token)
 
-			require.NoError(t, service.SignDataWithSessionToken(sk, v))
+			require.NoError(t, service.SignRequestData(sk, v))
 
-			require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.NoError(t, service.VerifyRequestData(v))
 
 			token.SetSessionKey(append(token.GetSessionKey(), 1))
 
-			require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.Error(t, service.VerifyRequestData(v))
 		}
 
 		{ // payload corruptions
 			for _, corruption := range item.payloadCorrupt {
 				v := item.constructor()
 
-				require.NoError(t, service.SignDataWithSessionToken(sk, v))
+				require.NoError(t, service.SignRequestData(sk, v))
 
-				require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.NoError(t, service.VerifyRequestData(v))
 
 				corruption(v)
 
-				require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.Error(t, service.VerifyRequestData(v))
 			}
 		}
 	}

service/bearer.go

@@ -0,0 +1,140 @@
+package service
+
+import (
+	"crypto/ecdsa"
+	"io"
+
+	"github.com/nspcc-dev/neofs-api-go/refs"
+	crypto "github.com/nspcc-dev/neofs-crypto"
+)
+
+type signedBearerToken struct {
+	BearerToken
+}
+
+type bearerMsgWrapper struct {
+	*BearerTokenMsg
+}
+
+const fixedBearerTokenDataSize = 0 +
+	refs.OwnerIDSize +
+	8
+
+// NewSignedBearerToken wraps passed BearerToken in a component suitable for signing.
+//
+// Result can be used in AddSignatureWithKey function.
+func NewSignedBearerToken(token BearerToken) DataWithSignKeyAccumulator {
+	return &signedBearerToken{
+		BearerToken: token,
+	}
+}
+
+// NewVerifiedBearerToken wraps passed SessionToken in a component suitable for signature verification.
+//
+// Result can be used in VerifySignatureWithKey function.
+func NewVerifiedBearerToken(token BearerToken) DataWithSignature {
+	return &signedBearerToken{
+		BearerToken: token,
+	}
+}
+
+// AddSignKey calls a Signature field setter and an OwnerKey field setter with corresponding arguments.
+func (s signedBearerToken) AddSignKey(sig []byte, key *ecdsa.PublicKey) {
+	if s.BearerToken != nil {
+		s.SetSignature(sig)
+
+		s.SetOwnerKey(
+			crypto.MarshalPublicKey(key),
+		)
+	}
+}
+
+// SignedData returns token information in a binary representation.
+func (s signedBearerToken) SignedData() ([]byte, error) {
+	return SignedDataFromReader(s)
+}
+
+// SignedDataSize returns the length of signed token information slice.
+func (s signedBearerToken) SignedDataSize() int {
+	return bearerTokenInfoSize(s.BearerToken)
+}
+
+// ReadSignedData copies a binary representation of the token information to passed buffer.
+//
+// If buffer length is less than required, io.ErrUnexpectedEOF returns.
+func (s signedBearerToken) ReadSignedData(p []byte) (int, error) {
+	sz := s.SignedDataSize()
+	if len(p) < sz {
+		return 0, io.ErrUnexpectedEOF
+	}
+
+	copyBearerTokenSignedData(p, s.BearerToken)
+
+	return sz, nil
+}
+
+func bearerTokenInfoSize(v ACLRulesSource) int {
+	if v == nil {
+		return 0
+	}
+	return fixedBearerTokenDataSize + len(v.GetACLRules())
+}
+
+// Fills passed buffer with signing token information bytes.
+// Does not check buffer length, it is understood that enough space is allocated in it.
+//
+// If passed BearerTokenInfo, buffer remains unchanged.
+func copyBearerTokenSignedData(buf []byte, token BearerTokenInfo) {
+	if token == nil {
+		return
+	}
+
+	var off int
+
+	off += copy(buf[off:], token.GetACLRules())
+
+	off += copy(buf[off:], token.GetOwnerID().Bytes())
+
+	tokenEndianness.PutUint64(buf[off:], token.ExpirationEpoch())
+	off += 8
+}
+
+// SetACLRules is an ACLRules field setter.
+func (m *BearerTokenMsg_Info) SetACLRules(v []byte) {
+	m.ACLRules = v
+}
+
+// SetValidUntil is a ValidUntil field setter.
+func (m *BearerTokenMsg_Info) SetValidUntil(v uint64) {
+	m.ValidUntil = v
+}
+
+// GetOwnerID if an OwnerID field getter.
+func (m BearerTokenMsg_Info) GetOwnerID() OwnerID {
+	return m.OwnerID
+}
+
+// SetOwnerID is an OwnerID field setter.
+func (m *BearerTokenMsg_Info) SetOwnerID(v OwnerID) {
+	m.OwnerID = v
+}
+
+// ExpirationEpoch returns the result of ValidUntil field getter.
+func (m BearerTokenMsg_Info) ExpirationEpoch() uint64 {
+	return m.GetValidUntil()
+}
+
+// SetExpirationEpoch passes argument to ValidUntil field setter.
+func (m *BearerTokenMsg_Info) SetExpirationEpoch(v uint64) {
+	m.SetValidUntil(v)
+}
+
+// SetOwnerKey is an OwnerKey field setter.
+func (m *BearerTokenMsg) SetOwnerKey(v []byte) {
+	m.OwnerKey = v
+}
+
+// SetSignature is a Signature field setter.
+func (m *BearerTokenMsg) SetSignature(v []byte) {
+	m.Signature = v
+}

service/bearer_test.go

@@ -0,0 +1,199 @@
+package service
+
+import (
+	"crypto/rand"
+	"testing"
+
+	"github.com/nspcc-dev/neofs-crypto/test"
+	"github.com/stretchr/testify/require"
+)
+
+type testBearerToken struct {
+	aclRules []byte
+	expEpoch uint64
+	owner    OwnerID
+	key      []byte
+	sig      []byte
+}
+
+func (s testBearerToken) GetACLRules() []byte {
+	return s.aclRules
+}
+
+func (s *testBearerToken) SetACLRules(v []byte) {
+	s.aclRules = v
+}
+
+func (s testBearerToken) ExpirationEpoch() uint64 {
+	return s.expEpoch
+}
+
+func (s *testBearerToken) SetExpirationEpoch(v uint64) {
+	s.expEpoch = v
+}
+
+func (s testBearerToken) GetOwnerID() OwnerID {
+	return s.owner
+}
+
+func (s *testBearerToken) SetOwnerID(v OwnerID) {
+	s.owner = v
+}
+
+func (s testBearerToken) GetOwnerKey() []byte {
+	return s.key
+}
+
+func (s *testBearerToken) SetOwnerKey(v []byte) {
+	s.key = v
+}
+
+func (s testBearerToken) GetSignature() []byte {
+	return s.sig
+}
+
+func (s *testBearerToken) SetSignature(v []byte) {
+	s.sig = v
+}
+
+func TestBearerTokenMsgGettersSetters(t *testing.T) {
+	var tok BearerToken = new(testBearerToken)
+
+	{ // ACLRules
+		rules := []byte{1, 2, 3}
+
+		tok.SetACLRules(rules)
+
+		require.Equal(t, rules, tok.GetACLRules())
+	}
+
+	{ // OwnerID
+		ownerID := OwnerID{}
+		_, err := rand.Read(ownerID[:])
+		require.NoError(t, err)
+
+		tok.SetOwnerID(ownerID)
+
+		require.Equal(t, ownerID, tok.GetOwnerID())
+	}
+
+	{ // ValidUntil
+		e := uint64(5)
+
+		tok.SetExpirationEpoch(e)
+
+		require.Equal(t, e, tok.ExpirationEpoch())
+	}
+
+	{ // OwnerKey
+		key := make([]byte, 10)
+		_, err := rand.Read(key)
+		require.NoError(t, err)
+
+		tok.SetOwnerKey(key)
+
+		require.Equal(t, key, tok.GetOwnerKey())
+	}
+
+	{ // Signature
+		sig := make([]byte, 10)
+		_, err := rand.Read(sig)
+		require.NoError(t, err)
+
+		tok.SetSignature(sig)
+
+		require.Equal(t, sig, tok.GetSignature())
+	}
+}
+
+func TestSignVerifyBearerToken(t *testing.T) {
+	var token BearerToken = new(testBearerToken)
+
+	// create private key for signing
+	sk := test.DecodeKey(0)
+	pk := &sk.PublicKey
+
+	rules := []byte{1, 2, 3}
+	token.SetACLRules(rules)
+
+	ownerID := OwnerID{}
+	_, err := rand.Read(ownerID[:])
+	require.NoError(t, err)
+	token.SetOwnerID(ownerID)
+
+	fEpoch := uint64(2)
+	token.SetExpirationEpoch(fEpoch)
+
+	signedToken := NewSignedBearerToken(token)
+	verifiedToken := NewVerifiedBearerToken(token)
+
+	// sign and verify token
+	require.NoError(t, AddSignatureWithKey(sk, signedToken))
+	require.NoError(t, VerifySignatureWithKey(pk, verifiedToken))
+
+	items := []struct {
+		corrupt func()
+		restore func()
+	}{
+		{ // ACLRules
+			corrupt: func() {
+				token.SetACLRules(append(rules, 1))
+			},
+			restore: func() {
+				token.SetACLRules(rules)
+			},
+		},
+		{ // Owner ID
+			corrupt: func() {
+				ownerID[0]++
+				token.SetOwnerID(ownerID)
+			},
+			restore: func() {
+				ownerID[0]--
+				token.SetOwnerID(ownerID)
+			},
+		},
+		{ // Expiration epoch
+			corrupt: func() {
+				token.SetExpirationEpoch(fEpoch + 1)
+			},
+			restore: func() {
+				token.SetExpirationEpoch(fEpoch)
+			},
+		},
+	}
+
+	for _, v := range items {
+		v.corrupt()
+		require.Error(t, VerifySignatureWithKey(pk, verifiedToken))
+		v.restore()
+		require.NoError(t, VerifySignatureWithKey(pk, verifiedToken))
+	}
+}
+
+func TestBearerTokenMsg_Setters(t *testing.T) {
+	s := new(BearerTokenMsg)
+
+	aclRules := []byte{1, 2, 3}
+	s.SetACLRules(aclRules)
+	require.Equal(t, aclRules, s.GetACLRules())
+
+	validUntil := uint64(6)
+	s.SetValidUntil(validUntil)
+	require.Equal(t, validUntil, s.GetValidUntil())
+
+	s.SetExpirationEpoch(validUntil + 1)
+	require.Equal(t, validUntil+1, s.ExpirationEpoch())
+
+	ownerID := OwnerID{1, 2, 3}
+	s.SetOwnerID(ownerID)
+	require.Equal(t, ownerID, s.GetOwnerID())
+
+	ownerKey := []byte{4, 5, 6}
+	s.SetOwnerKey(ownerKey)
+	require.Equal(t, ownerKey, s.GetOwnerKey())
+
+	sig := []byte{7, 8, 9}
+	s.SetSignature(sig)
+	require.Equal(t, sig, s.GetSignature())
+}

service/errors.go

@@ -36,14 +36,18 @@ const ErrEmptyDataWithSignature = internal.Error("empty data with signature")
 // negative length for slice allocation.
 const ErrNegativeLength = internal.Error("negative slice length")
 
-// ErrNilDataWithTokenSignAccumulator is returned by functions that expect
+// ErrNilRequestSignedData is returned by functions that expect
-// a non-nil DataWithTokenSignAccumulator, but received nil.
+// a non-nil RequestSignedData, but received nil.
-const ErrNilDataWithTokenSignAccumulator = internal.Error("signed data with token is nil")
+const ErrNilRequestSignedData = internal.Error("request signed data is nil")
 
-// ErrNilSignatureKeySourceWithToken is returned by functions that expect
+// ErrNilRequestVerifyData is returned by functions that expect
-// a non-nil SignatureKeySourceWithToken, but received nil.
+// a non-nil RequestVerifyData, but received nil.
-const ErrNilSignatureKeySourceWithToken = internal.Error("key-signature source with token is nil")
+const ErrNilRequestVerifyData = internal.Error("request verification data is nil")
 
 // ErrNilSignedDataReader is returned by functions that expect
 // a non-nil SignedDataReader, but received nil.
 const ErrNilSignedDataReader = internal.Error("signed data reader is nil")
+
+// ErrNilSignKeyPairAccumulator is returned by functions that expect
+// a non-nil SignKeyPairAccumulator, but received nil.
+const ErrNilSignKeyPairAccumulator = internal.Error("signature-key pair accumulator is nil")

service/meta.go

@@ -1,5 +1,17 @@
 package service
 
+import (
+	"io"
+)
+
+type extHdrWrapper struct {
+	msg *RequestExtendedHeader_KV
+}
+
+type extHdrSrcWrapper struct {
+	extHdrSrc ExtendedHeadersSource
+}
+
 // CutMeta returns current value and sets RequestMetaHeader to empty value.
 func (m *RequestMetaHeader) CutMeta() RequestMetaHeader {
 	cp := *m
@@ -11,3 +23,109 @@ func (m *RequestMetaHeader) CutMeta() RequestMetaHeader {
 func (m *RequestMetaHeader) RestoreMeta(v RequestMetaHeader) {
 	*m = v
 }
+
+// ExtendedHeadersSignedData wraps passed ExtendedHeadersSource and returns SignedDataSource.
+func ExtendedHeadersSignedData(headers ExtendedHeadersSource) SignedDataSource {
+	return &extHdrSrcWrapper{
+		extHdrSrc: headers,
+	}
+}
+
+// SignedData returns extended headers in a binary representation.
+func (s extHdrSrcWrapper) SignedData() ([]byte, error) {
+	return SignedDataFromReader(s)
+}
+
+// SignedDataSize returns the length of extended headers slice.
+func (s extHdrSrcWrapper) SignedDataSize() (res int) {
+	if s.extHdrSrc != nil {
+		for _, h := range s.extHdrSrc.ExtendedHeaders() {
+			if h != nil {
+				res += len(h.Key()) + len(h.Value())
+			}
+		}
+	}
+
+	return
+}
+
+// ReadSignedData copies a binary representation of the extended headers to passed buffer.
+//
+// If buffer length is less than required, io.ErrUnexpectedEOF returns.
+func (s extHdrSrcWrapper) ReadSignedData(p []byte) (int, error) {
+	sz := s.SignedDataSize()
+	if len(p) < sz {
+		return 0, io.ErrUnexpectedEOF
+	}
+
+	if s.extHdrSrc != nil {
+		off := 0
+		for _, h := range s.extHdrSrc.ExtendedHeaders() {
+			if h == nil {
+				continue
+			}
+
+			off += copy(p[off:], []byte(h.Key()))
+
+			off += copy(p[off:], []byte(h.Value()))
+		}
+	}
+
+	return sz, nil
+}
+
+// SetK is a K field setter.
+func (m *RequestExtendedHeader_KV) SetK(v string) {
+	m.K = v
+}
+
+// SetV is a V field setter.
+func (m *RequestExtendedHeader_KV) SetV(v string) {
+	m.V = v
+}
+
+// SetHeaders is a Headers field setter.
+func (m *RequestExtendedHeader) SetHeaders(v []RequestExtendedHeader_KV) {
+	m.Headers = v
+}
+
+func wrapExtendedHeaderKV(msg *RequestExtendedHeader_KV) extHdrWrapper {
+	return extHdrWrapper{
+		msg: msg,
+	}
+}
+
+// Key returns the result of K field getter.
+//
+// If message is nil, empty string returns.
+func (m extHdrWrapper) Key() string {
+	if m.msg != nil {
+		return m.msg.GetK()
+	}
+
+	return ""
+}
+
+// Value returns the result of V field getter.
+//
+// If message is nil, empty string returns.
+func (m extHdrWrapper) Value() string {
+	if m.msg != nil {
+		return m.msg.GetV()
+	}
+
+	return ""
+}
+
+// ExtendedHeaders composes ExtendedHeader list from the Headers field getter result.
+func (m RequestExtendedHeader) ExtendedHeaders() []ExtendedHeader {
+	hs := m.GetHeaders()
+
+	res := make([]ExtendedHeader, 0, len(hs))
+
+	for i := range hs {
+		res = append(res, wrapExtendedHeaderKV(&hs[i]))
+	}
+
+	return res
+}

service/meta.pb.go

@@ -35,6 +35,8 @@ type RequestMetaHeader struct {
 	Version uint32 `protobuf:"varint,3,opt,name=Version,proto3" json:"Version,omitempty"`
 	// Raw determines whether the request is raw or not
 	Raw bool `protobuf:"varint,4,opt,name=Raw,proto3" json:"Raw,omitempty"`
+	// ExtendedHeader carries extended headers of the request
+	RequestExtendedHeader `protobuf:"bytes,5,opt,name=ExtendedHeader,proto3,embedded=ExtendedHeader" json:"ExtendedHeader"`
 	XXX_NoUnkeyedLiteral  struct{} `json:"-"`
 	XXX_unrecognized      []byte   `json:"-"`
 	XXX_sizecache         int32    `json:"-"`
@@ -153,32 +155,139 @@ func (m *ResponseMetaHeader) GetVersion() uint32 {
 	return 0
 }
 
+// RequestExtendedHeader contains extended headers of request
+type RequestExtendedHeader struct {
+	// Headers carries list of key-value headers
+	Headers              []RequestExtendedHeader_KV `protobuf:"bytes,1,rep,name=Headers,proto3" json:"Headers"`
+	XXX_NoUnkeyedLiteral struct{}                   `json:"-"`
+	XXX_unrecognized     []byte                     `json:"-"`
+	XXX_sizecache        int32                      `json:"-"`
+}
+
+func (m *RequestExtendedHeader) Reset()         { *m = RequestExtendedHeader{} }
+func (m *RequestExtendedHeader) String() string { return proto.CompactTextString(m) }
+func (*RequestExtendedHeader) ProtoMessage()    {}
+func (*RequestExtendedHeader) Descriptor() ([]byte, []int) {
+	return fileDescriptor_a638867e7b43457c, []int{2}
+}
+func (m *RequestExtendedHeader) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *RequestExtendedHeader) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	b = b[:cap(b)]
+	n, err := m.MarshalToSizedBuffer(b)
+	if err != nil {
+		return nil, err
+	}
+	return b[:n], nil
+}
+func (m *RequestExtendedHeader) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_RequestExtendedHeader.Merge(m, src)
+}
+func (m *RequestExtendedHeader) XXX_Size() int {
+	return m.Size()
+}
+func (m *RequestExtendedHeader) XXX_DiscardUnknown() {
+	xxx_messageInfo_RequestExtendedHeader.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_RequestExtendedHeader proto.InternalMessageInfo
+
+func (m *RequestExtendedHeader) GetHeaders() []RequestExtendedHeader_KV {
+	if m != nil {
+		return m.Headers
+	}
+	return nil
+}
+
+// KV contains string key-value pair
+type RequestExtendedHeader_KV struct {
+	// K carries extended header key
+	K string `protobuf:"bytes,1,opt,name=K,proto3" json:"K,omitempty"`
+	// V carries extended header value
+	V                    string   `protobuf:"bytes,2,opt,name=V,proto3" json:"V,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *RequestExtendedHeader_KV) Reset()         { *m = RequestExtendedHeader_KV{} }
+func (m *RequestExtendedHeader_KV) String() string { return proto.CompactTextString(m) }
+func (*RequestExtendedHeader_KV) ProtoMessage()    {}
+func (*RequestExtendedHeader_KV) Descriptor() ([]byte, []int) {
+	return fileDescriptor_a638867e7b43457c, []int{2, 0}
+}
+func (m *RequestExtendedHeader_KV) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *RequestExtendedHeader_KV) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	b = b[:cap(b)]
+	n, err := m.MarshalToSizedBuffer(b)
+	if err != nil {
+		return nil, err
+	}
+	return b[:n], nil
+}
+func (m *RequestExtendedHeader_KV) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_RequestExtendedHeader_KV.Merge(m, src)
+}
+func (m *RequestExtendedHeader_KV) XXX_Size() int {
+	return m.Size()
+}
+func (m *RequestExtendedHeader_KV) XXX_DiscardUnknown() {
+	xxx_messageInfo_RequestExtendedHeader_KV.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_RequestExtendedHeader_KV proto.InternalMessageInfo
+
+func (m *RequestExtendedHeader_KV) GetK() string {
+	if m != nil {
+		return m.K
+	}
+	return ""
+}
+
+func (m *RequestExtendedHeader_KV) GetV() string {
+	if m != nil {
+		return m.V
+	}
+	return ""
+}
+
 func init() {
 	proto.RegisterType((*RequestMetaHeader)(nil), "service.RequestMetaHeader")
 	proto.RegisterType((*ResponseMetaHeader)(nil), "service.ResponseMetaHeader")
+	proto.RegisterType((*RequestExtendedHeader)(nil), "service.RequestExtendedHeader")
+	proto.RegisterType((*RequestExtendedHeader_KV)(nil), "service.RequestExtendedHeader.KV")
 }
 
 func init() { proto.RegisterFile("service/meta.proto", fileDescriptor_a638867e7b43457c) }
 
 var fileDescriptor_a638867e7b43457c = []byte{
-	// 261 bytes of a gzipped FileDescriptorProto
+	// 362 bytes of a gzipped FileDescriptorProto
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+	0x8a, 0x0e, 0x46, 0x83, 0x95, 0x40, 0x55, 0xd2, 0x72, 0x31, 0x15, 0x11, 0x8f, 0xd5, 0xba, 0xec,
-	0x91, 0x1c, 0xe3, 0x85, 0x47, 0x72, 0x8c, 0x37, 0x1e, 0xc9, 0x31, 0x3e, 0x78, 0x24, 0xc7, 0x38,
+	0x3d, 0x61, 0xf1, 0x03, 0xf3, 0x7e, 0xab, 0x0d, 0x1d, 0x8c, 0x36, 0x2b, 0x22, 0x9d, 0x91, 0xd7,
-	0xe3, 0xb1, 0x1c, 0x43, 0x94, 0x26, 0x92, 0x9f, 0xf3, 0x8a, 0x0b, 0x92, 0x93, 0x75, 0x53, 0x52,
+	0xd3, 0x3f, 0x19, 0xc6, 0x01, 0x06, 0xe5, 0x16, 0xb5, 0xa9, 0x83, 0xd1, 0x1d, 0x69, 0x56, 0xa5,
-	0xcb, 0xf4, 0xf3, 0x52, 0xf3, 0xd3, 0x8a, 0x75, 0x13, 0x0b, 0x32, 0x75, 0xd3, 0xf3, 0xf5, 0xa1,
+	0x6e, 0x55, 0x1e, 0x97, 0x5d, 0x93, 0xf6, 0xfe, 0x38, 0xa8, 0x1d, 0x8e, 0x03, 0x60, 0x0f, 0xe6,
-	0xc1, 0xb3, 0x8a, 0x49, 0xd0, 0x2f, 0x35, 0xdf, 0x2d, 0x58, 0xcf, 0x31, 0xc0, 0x53, 0x2f, 0x18,
+	0x87, 0x9f, 0x08, 0x65, 0x28, 0x12, 0x1e, 0x0b, 0x3c, 0x73, 0xbf, 0x37, 0x85, 0x27, 0x4c, 0x95,
-	0x22, 0x96, 0xc4, 0x06, 0x0e, 0x0a, 0x63, 0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0xb2, 0x12, 0x93,
+	0x0b, 0xd3, 0xe1, 0x5f, 0xf2, 0xee, 0xd1, 0xc5, 0x74, 0x4c, 0x5a, 0x65, 0x12, 0x2a, 0xe8, 0x75,
-	0x5e, 0x58, 0x01, 0x00, 0x00,
+	0xa3, 0x3b, 0x7a, 0xff, 0xbc, 0xa9, 0xe5, 0xb8, 0x93, 0x46, 0x21, 0xcb, 0x4e, 0x73, 0x7d, 0x9d,
+	0x28, 0x8e, 0x4b, 0x5f, 0x12, 0x70, 0xa4, 0x4d, 0x87, 0x81, 0x53, 0x90, 0x2b, 0x1d, 0x3a, 0x0c,
+	0xdc, 0xc9, 0x7c, 0x9f, 0x6b, 0x70, 0xc8, 0x35, 0xb8, 0xce, 0x35, 0xb8, 0xc9, 0x35, 0xf8, 0x77,
+	0xab, 0xd5, 0x7e, 0x7e, 0x38, 0x3b, 0x62, 0x2c, 0x12, 0xdf, 0x37, 0x03, 0xdc, 0xd9, 0x31, 0xf2,
+	0x95, 0x30, 0xbd, 0x24, 0x32, 0x43, 0x6e, 0x57, 0x2a, 0xff, 0x95, 0xde, 0x0f, 0xe4, 0x9f, 0xe7,
+	0xd6, 0x78, 0xf6, 0xd5, 0x9a, 0x97, 0xb5, 0xe5, 0x0b, 0x79, 0xdb, 0x8f, 0x77, 0x01, 0x00, 0x00,
+	0xff, 0xff, 0xf3, 0xf7, 0x0a, 0xb8, 0x29, 0x02, 0x00, 0x00,
 }
 
 func (m *RequestMetaHeader) Marshal() (dAtA []byte, err error) {
@@ -205,6 +314,16 @@ func (m *RequestMetaHeader) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	{
+		size, err := m.RequestExtendedHeader.MarshalToSizedBuffer(dAtA[:i])
+		if err != nil {
+			return 0, err
+		}
+		i -= size
+		i = encodeVarintMeta(dAtA, i, uint64(size))
+	}
+	i--
+	dAtA[i] = 0x2a
 	if m.Raw {
 		i--
 		if m.Raw {
@@ -270,6 +389,88 @@ func (m *ResponseMetaHeader) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	return len(dAtA) - i, nil
 }
 
+func (m *RequestExtendedHeader) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *RequestExtendedHeader) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *RequestExtendedHeader) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if len(m.Headers) > 0 {
+		for iNdEx := len(m.Headers) - 1; iNdEx >= 0; iNdEx-- {
+			{
+				size, err := m.Headers[iNdEx].MarshalToSizedBuffer(dAtA[:i])
+				if err != nil {
+					return 0, err
+				}
+				i -= size
+				i = encodeVarintMeta(dAtA, i, uint64(size))
+			}
+			i--
+			dAtA[i] = 0xa
+		}
+	}
+	return len(dAtA) - i, nil
+}
+
+func (m *RequestExtendedHeader_KV) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *RequestExtendedHeader_KV) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *RequestExtendedHeader_KV) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if len(m.V) > 0 {
+		i -= len(m.V)
+		copy(dAtA[i:], m.V)
+		i = encodeVarintMeta(dAtA, i, uint64(len(m.V)))
+		i--
+		dAtA[i] = 0x12
+	}
+	if len(m.K) > 0 {
+		i -= len(m.K)
+		copy(dAtA[i:], m.K)
+		i = encodeVarintMeta(dAtA, i, uint64(len(m.K)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
 func encodeVarintMeta(dAtA []byte, offset int, v uint64) int {
 	offset -= sovMeta(v)
 	base := offset
@@ -299,6 +500,8 @@ func (m *RequestMetaHeader) Size() (n int) {
 	if m.Raw {
 		n += 2
 	}
+	l = m.RequestExtendedHeader.Size()
+	n += 1 + l + sovMeta(uint64(l))
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -323,6 +526,44 @@ func (m *ResponseMetaHeader) Size() (n int) {
 	return n
 }
 
+func (m *RequestExtendedHeader) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	if len(m.Headers) > 0 {
+		for _, e := range m.Headers {
+			l = e.Size()
+			n += 1 + l + sovMeta(uint64(l))
+		}
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *RequestExtendedHeader_KV) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.K)
+	if l > 0 {
+		n += 1 + l + sovMeta(uint64(l))
+	}
+	l = len(m.V)
+	if l > 0 {
+		n += 1 + l + sovMeta(uint64(l))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
 func sovMeta(x uint64) (n int) {
 	return (math_bits.Len64(x|1) + 6) / 7
 }
@@ -435,6 +676,39 @@ func (m *RequestMetaHeader) Unmarshal(dAtA []byte) error {
 				}
 			}
 			m.Raw = bool(v != 0)
+		case 5:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field RequestExtendedHeader", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMeta
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMeta
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMeta
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.RequestExtendedHeader.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipMeta(dAtA[iNdEx:])
@@ -552,6 +826,212 @@ func (m *ResponseMetaHeader) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *RequestExtendedHeader) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMeta
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: RequestExtendedHeader: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: RequestExtendedHeader: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Headers", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMeta
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthMeta
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthMeta
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Headers = append(m.Headers, RequestExtendedHeader_KV{})
+			if err := m.Headers[len(m.Headers)-1].Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMeta(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthMeta
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthMeta
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *RequestExtendedHeader_KV) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowMeta
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: KV: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: KV: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field K", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMeta
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthMeta
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthMeta
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.K = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field V", wireType)
+			}
+			var stringLen uint64
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowMeta
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				stringLen |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			intStringLen := int(stringLen)
+			if intStringLen < 0 {
+				return ErrInvalidLengthMeta
+			}
+			postIndex := iNdEx + intStringLen
+			if postIndex < 0 {
+				return ErrInvalidLengthMeta
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.V = string(dAtA[iNdEx:postIndex])
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipMeta(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthMeta
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthMeta
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func skipMeta(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0

service/meta.proto

@@ -19,6 +19,8 @@ message RequestMetaHeader {
     uint32 Version = 3;
     // Raw determines whether the request is raw or not
     bool Raw       = 4;
+    // ExtendedHeader carries extended headers of the request
+    RequestExtendedHeader ExtendedHeader = 5 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
 }
 
 // ResponseMetaHeader contains meta information based on request processing by server
@@ -30,3 +32,18 @@ message ResponseMetaHeader {
     // TODO: not used for now, should be implemented in future
     uint32 Version = 2;
 }
+
+// RequestExtendedHeader contains extended headers of request
+message RequestExtendedHeader {
+    // KV contains string key-value pair
+    message KV {
+        // K carries extended header key
+        string K = 1;
+
+        // V carries extended header value
+        string V = 2;
+    }
+
+    // Headers carries list of key-value headers
+    repeated KV Headers = 1 [(gogoproto.nullable) = false];
+}

service/meta_test.go

@@ -23,3 +23,77 @@ func TestCutRestoreMeta(t *testing.T) {
 		require.Equal(t, item(), v1)
 	}
 }
+
+func TestRequestExtendedHeader_KV_Setters(t *testing.T) {
+	s := new(RequestExtendedHeader_KV)
+
+	key := "key"
+	s.SetK(key)
+	require.Equal(t, key, s.GetK())
+
+	val := "val"
+	s.SetV(val)
+	require.Equal(t, val, s.GetV())
+}
+
+func TestRequestExtendedHeader_SetHeaders(t *testing.T) {
+	s := new(RequestExtendedHeader)
+
+	hdr := RequestExtendedHeader_KV{}
+	hdr.SetK("key")
+	hdr.SetV("val")
+
+	hdrs := []RequestExtendedHeader_KV{
+		hdr,
+	}
+
+	s.SetHeaders(hdrs)
+
+	require.Equal(t, hdrs, s.GetHeaders())
+}
+
+func TestExtHdrWrapper(t *testing.T) {
+	s := wrapExtendedHeaderKV(nil)
+	require.Empty(t, s.Key())
+	require.Empty(t, s.Value())
+
+	msg := new(RequestExtendedHeader_KV)
+	s = wrapExtendedHeaderKV(msg)
+
+	key := "key"
+	msg.SetK(key)
+	require.Equal(t, key, s.Key())
+
+	val := "val"
+	msg.SetV(val)
+	require.Equal(t, val, s.Value())
+}
+
+func TestRequestExtendedHeader_ExtendedHeaders(t *testing.T) {
+	var (
+		k1, v1 = "key1", "value1"
+		k2, v2 = "key2", "value2"
+		h1     = new(RequestExtendedHeader_KV)
+		h2     = new(RequestExtendedHeader_KV)
+	)
+
+	h1.SetK(k1)
+	h1.SetV(v1)
+
+	h2.SetK(k2)
+	h2.SetV(v2)
+
+	s := new(RequestExtendedHeader)
+	s.SetHeaders([]RequestExtendedHeader_KV{
+		*h1, *h2,
+	})
+
+	xHdrs := s.ExtendedHeaders()
+	require.Len(t, xHdrs, 2)
+
+	require.Equal(t, k1, xHdrs[0].Key())
+	require.Equal(t, v1, xHdrs[0].Value())
+
+	require.Equal(t, k2, xHdrs[1].Key())
+	require.Equal(t, v2, xHdrs[1].Value())
+}

service/sign.go

@@ -2,9 +2,11 @@ package service
 
 import (
 	"crypto/ecdsa"
+	"io"
 	"sync"
 
 	crypto "github.com/nspcc-dev/neofs-crypto"
+	"github.com/pkg/errors"
 )
 
 type keySign struct {
@@ -12,6 +14,20 @@ type keySign struct {
 	sign []byte
 }
 
+type signSourceGroup struct {
+	SignKeyPairSource
+	SignKeyPairAccumulator
+
+	sources []SignedDataSource
+}
+
+type signReadersGroup struct {
+	SignKeyPairSource
+	SignKeyPairAccumulator
+
+	readers []SignedDataReader
+}
+
 var bytesPool = sync.Pool{
 	New: func() interface{} {
 		return make([]byte, 5<<20)
@@ -176,54 +192,199 @@ func VerifySignatureWithKey(key *ecdsa.PublicKey, src DataWithSignature) error {
 	)
 }
 
-// SignDataWithSessionToken calculates data with token signature and adds it to accumulator.
+// SignRequestData calculates request data signature and adds it to accumulator.
 //
-// Any change of data or session token info provoke signature breakdown.
+// Any change of request data provoke signature breakdown.
 //
 // If passed private key is nil, crypto.ErrEmptyPrivateKey returns.
-// If passed DataWithTokenSignAccumulator is nil, ErrNilDataWithTokenSignAccumulator returns.
+// If passed RequestSignedData is nil, ErrNilRequestSignedData returns.
-func SignDataWithSessionToken(key *ecdsa.PrivateKey, src DataWithTokenSignAccumulator) error {
+func SignRequestData(key *ecdsa.PrivateKey, src RequestSignedData) error {
 	if src == nil {
-		return ErrNilDataWithTokenSignAccumulator
+		return ErrNilRequestSignedData
-	} else if r, ok := src.(SignedDataReader); ok {
+	}
-		return AddSignatureWithKey(key, &signDataReaderWithToken{
-			SignedDataSource:       src,
-			SignKeyPairAccumulator: src,
 
-			rdr:   r,
+	sigSrc, err := GroupSignedPayloads(
-			token: src.GetSessionToken(),
+		src,
-		},
+		src,
+		NewSignedSessionToken(
+			src.GetSessionToken(),
+		),
+		NewSignedBearerToken(
+			src.GetBearerToken(),
+		),
+		ExtendedHeadersSignedData(src),
 	)
+	if err != nil {
+		return err
 	}
 
-	return AddSignatureWithKey(key, &signAccumWithToken{
+	return AddSignatureWithKey(key, sigSrc)
-		SignedDataSource:       src,
-		SignKeyPairAccumulator: src,
-
-		token: src.GetSessionToken(),
-	})
 }
 
-// VerifyAccumulatedSignaturesWithToken checks if accumulated key-signature pairs of data with token are valid.
+// VerifyRequestData checks if accumulated key-signature pairs of data with token are valid.
 //
-// If passed DataWithTokenSignSource is nil, ErrNilSignatureKeySourceWithToken returns.
+// If passed RequestVerifyData is nil, ErrNilRequestVerifyData returns.
-func VerifyAccumulatedSignaturesWithToken(src DataWithTokenSignSource) error {
+func VerifyRequestData(src RequestVerifyData) error {
 	if src == nil {
-		return ErrNilSignatureKeySourceWithToken
+		return ErrNilRequestVerifyData
-	} else if r, ok := src.(SignedDataReader); ok {
-		return VerifyAccumulatedSignatures(&signDataReaderWithToken{
-			SignedDataSource:  src,
-			SignKeyPairSource: src,
-
-			rdr:   r,
-			token: src.GetSessionToken(),
-		})
 	}
 
-	return VerifyAccumulatedSignatures(&signAccumWithToken{
+	verSrc, err := GroupVerifyPayloads(
-		SignedDataSource:  src,
+		src,
-		SignKeyPairSource: src,
+		src,
+		NewVerifiedSessionToken(
+			src.GetSessionToken(),
+		),
+		NewVerifiedBearerToken(
+			src.GetBearerToken(),
+		),
+		ExtendedHeadersSignedData(src),
+	)
+	if err != nil {
+		return err
+	}
 
-		token: src.GetSessionToken(),
+	return VerifyAccumulatedSignatures(verSrc)
-	})
+}
+
+// SignedData returns payload bytes concatenation from all sources keeping order.
+func (s signSourceGroup) SignedData() ([]byte, error) {
+	chunks := make([][]byte, 0, len(s.sources))
+	sz := 0
+
+	for i := range s.sources {
+		data, err := s.sources[i].SignedData()
+		if err != nil {
+			return nil, errors.Wrapf(err, "could not get signed payload of element #%d", i)
+		}
+
+		chunks = append(chunks, data)
+
+		sz += len(data)
+	}
+
+	res := make([]byte, sz)
+	off := 0
+
+	for i := range chunks {
+		off += copy(res[off:], chunks[i])
+	}
+
+	return res, nil
+}
+
+// SignedData returns payload bytes concatenation from all readers.
+func (s signReadersGroup) SignedData() ([]byte, error) {
+	return SignedDataFromReader(s)
+}
+
+// SignedDataSize returns the sum of sizes of all readers.
+func (s signReadersGroup) SignedDataSize() (sz int) {
+	for i := range s.readers {
+		sz += s.readers[i].SignedDataSize()
+	}
+
+	return
+}
+
+// ReadSignedData reads data from all readers to passed buffer keeping order.
+//
+// If the buffer size is insufficient, io.ErrUnexpectedEOF returns.
+func (s signReadersGroup) ReadSignedData(p []byte) (int, error) {
+	sz := s.SignedDataSize()
+	if len(p) < sz {
+		return 0, io.ErrUnexpectedEOF
+	}
+
+	off := 0
+
+	for i := range s.readers {
+		n, err := s.readers[i].ReadSignedData(p[off:])
+		off += n
+		if err != nil {
+			return off, errors.Wrapf(err, "could not read signed payload of element #%d", i)
+		}
+	}
+
+	return off, nil
+}
+
+// GroupSignedPayloads groups SignKeyPairAccumulator and SignedDataSource list to DataWithSignKeyAccumulator.
+//
+// If passed SignKeyPairAccumulator is nil, ErrNilSignKeyPairAccumulator returns.
+//
+// Signed payload of the result is a concatenation of payloads of list elements keeping order.
+// Nil elements in list are ignored.
+//
+// If all elements implement SignedDataReader, result implements it too.
+func GroupSignedPayloads(acc SignKeyPairAccumulator, sources ...SignedDataSource) (DataWithSignKeyAccumulator, error) {
+	if acc == nil {
+		return nil, ErrNilSignKeyPairAccumulator
+	}
+
+	return groupPayloads(acc, nil, sources...), nil
+}
+
+// GroupVerifyPayloads groups SignKeyPairSource and SignedDataSource list to DataWithSignKeySource.
+//
+// If passed SignKeyPairSource is nil, ErrNilSignatureKeySource returns.
+//
+// Signed payload of the result is a concatenation of payloads of list elements keeping order.
+// Nil elements in list are ignored.
+//
+// If all elements implement SignedDataReader, result implements it too.
+func GroupVerifyPayloads(src SignKeyPairSource, sources ...SignedDataSource) (DataWithSignKeySource, error) {
+	if src == nil {
+		return nil, ErrNilSignatureKeySource
+	}
+
+	return groupPayloads(nil, src, sources...), nil
+}
+
+func groupPayloads(acc SignKeyPairAccumulator, src SignKeyPairSource, sources ...SignedDataSource) interface {
+	SignedDataSource
+	SignKeyPairSource
+	SignKeyPairAccumulator
+} {
+	var allReaders bool
+
+	for i := range sources {
+		if sources[i] == nil {
+			continue
+		} else if _, allReaders = sources[i].(SignedDataReader); !allReaders {
+			break
+		}
+	}
+
+	if !allReaders {
+		res := &signSourceGroup{
+			SignKeyPairSource:      src,
+			SignKeyPairAccumulator: acc,
+
+			sources: make([]SignedDataSource, 0, len(sources)),
+		}
+
+		for i := range sources {
+			if sources[i] != nil {
+				res.sources = append(res.sources, sources[i])
+			}
+		}
+
+		return res
+	}
+
+	res := &signReadersGroup{
+		SignKeyPairSource:      src,
+		SignKeyPairAccumulator: acc,
+
+		readers: make([]SignedDataReader, 0, len(sources)),
+	}
+
+	for i := range sources {
+		if sources[i] != nil {
+			res.readers = append(res.readers, sources[i].(SignedDataReader))
+		}
+	}
+
+	return res
 }

service/sign_test.go

@@ -18,6 +18,10 @@ type testSignedDataSrc struct {
 	sig   []byte
 	key   *ecdsa.PublicKey
 	token SessionToken
+
+	bearer BearerToken
+
+	extHdrs []ExtendedHeader
 }
 
 type testSignedDataReader struct {
@@ -54,6 +58,14 @@ func (s testSignedDataSrc) GetSessionToken() SessionToken {
 	return s.token
 }
 
+func (s testSignedDataSrc) GetBearerToken() BearerToken {
+	return s.bearer
+}
+
+func (s testSignedDataSrc) ExtendedHeaders() []ExtendedHeader {
+	return s.extHdrs
+}
+
 func (s testSignedDataReader) SignedDataSize() int {
 	return len(s.data)
 }
@@ -256,47 +268,63 @@ func TestVerifySignatureWithKey(t *testing.T) {
 	require.Error(t, VerifySignatureWithKey(&sk.PublicKey, src))
 }
 
-func TestSignVerifyDataWithSessionToken(t *testing.T) {
+func TestSignVerifyRequestData(t *testing.T) {
-	// sign with empty DataWithTokenSignAccumulator
+	// sign with empty RequestSignedData
 	require.EqualError(t,
-		SignDataWithSessionToken(nil, nil),
+		SignRequestData(nil, nil),
-		ErrNilDataWithTokenSignAccumulator.Error(),
+		ErrNilRequestSignedData.Error(),
 	)
 
-	// verify with empty DataWithTokenSignSource
+	// verify with empty RequestVerifyData
 	require.EqualError(t,
-		VerifyAccumulatedSignaturesWithToken(nil),
+		VerifyRequestData(nil),
-		ErrNilSignatureKeySourceWithToken.Error(),
+		ErrNilRequestVerifyData.Error(),
 	)
 
 	// create test session token
 	var (
 		token    = new(Token)
 		initVerb = Token_Info_Verb(1)
+
+		bearer      = new(BearerTokenMsg)
+		bearerEpoch = uint64(8)
+
+		extHdrKey = "key"
+		extHdr    = new(RequestExtendedHeader_KV)
 	)
 
 	token.SetVerb(initVerb)
 
+	bearer.SetExpirationEpoch(bearerEpoch)
+
+	extHdr.SetK(extHdrKey)
+
 	// create test data with token
 	src := &testSignedDataSrc{
 		data:  testData(t, 10),
 		token: token,
+
+		bearer: bearer,
+
+		extHdrs: []ExtendedHeader{
+			wrapExtendedHeaderKV(extHdr),
+		},
 	}
 
 	// create test private key
 	sk := test.DecodeKey(0)
 
 	// sign with private key
-	require.NoError(t, SignDataWithSessionToken(sk, src))
+	require.NoError(t, SignRequestData(sk, src))
 
 	// ascertain that verification is passed
-	require.NoError(t, VerifyAccumulatedSignaturesWithToken(src))
+	require.NoError(t, VerifyRequestData(src))
 
 	// break the data
 	src.data[0]++
 
 	// ascertain that verification is failed
-	require.Error(t, VerifyAccumulatedSignaturesWithToken(src))
+	require.Error(t, VerifyRequestData(src))
 
 	// restore the data
 	src.data[0]--
@@ -305,13 +333,37 @@ func TestSignVerifyDataWithSessionToken(t *testing.T) {
 	token.SetVerb(initVerb + 1)
 
 	// ascertain that verification is failed
-	require.Error(t, VerifyAccumulatedSignaturesWithToken(src))
+	require.Error(t, VerifyRequestData(src))
 
 	// restore the token
 	token.SetVerb(initVerb)
 
 	// ascertain that verification is passed
-	require.NoError(t, VerifyAccumulatedSignaturesWithToken(src))
+	require.NoError(t, VerifyRequestData(src))
+
+	// break the Bearer token
+	bearer.SetExpirationEpoch(bearerEpoch + 1)
+
+	// ascertain that verification is failed
+	require.Error(t, VerifyRequestData(src))
+
+	// restore the Bearer token
+	bearer.SetExpirationEpoch(bearerEpoch)
+
+	// ascertain that verification is passed
+	require.NoError(t, VerifyRequestData(src))
+
+	// break the extended header
+	extHdr.SetK(extHdrKey + "1")
+
+	// ascertain that verification is failed
+	require.Error(t, VerifyRequestData(src))
+
+	// restore the extended header
+	extHdr.SetK(extHdrKey)
+
+	// ascertain that verification is passed
+	require.NoError(t, VerifyRequestData(src))
 
 	// wrap to data reader
 	rdr := &testSignedDataReader{
@@ -319,8 +371,8 @@ func TestSignVerifyDataWithSessionToken(t *testing.T) {
 	}
 
 	// sign with private key
-	require.NoError(t, SignDataWithSessionToken(sk, rdr))
+	require.NoError(t, SignRequestData(sk, rdr))
 
 	// ascertain that verification is passed
-	require.NoError(t, VerifyAccumulatedSignaturesWithToken(rdr))
+	require.NoError(t, VerifyRequestData(rdr))
 }

service/types.go

@@ -250,20 +250,67 @@ type DataWithSignKeySource interface {
 	SignKeyPairSource
 }
 
-// SignedDataWithToken is an interface of data-token pair with read access.
+// RequestData is an interface of the request information with read access.
-type SignedDataWithToken interface {
+type RequestData interface {
 	SignedDataSource
 	SessionTokenSource
+	BearerTokenSource
+	ExtendedHeadersSource
 }
 
-// DataWithTokenSignAccumulator is an interface of data-token pair with signature write access.
+// RequestSignedData is an interface of request information with signature write access.
-type DataWithTokenSignAccumulator interface {
+type RequestSignedData interface {
-	SignedDataWithToken
+	RequestData
 	SignKeyPairAccumulator
 }
 
-// DataWithTokenSignSource is an interface of data-token pair with signature read access.
+// RequestVerifyData is an interface of request information with signature read access.
-type DataWithTokenSignSource interface {
+type RequestVerifyData interface {
-	SignedDataWithToken
+	RequestData
 	SignKeyPairSource
 }
+
+// ACLRulesSource is an interface of the container of binary extended ACL rules with read access.
+type ACLRulesSource interface {
+	GetACLRules() []byte
+}
+
+// ACLRulesContainer is an interface of the container of binary extended ACL rules.
+type ACLRulesContainer interface {
+	ACLRulesSource
+	SetACLRules([]byte)
+}
+
+// BearerTokenInfo is an interface of a fixed set of Bearer token information value containers.
+// Contains:
+// - binary extended ACL rules;
+// - expiration epoch number;
+// - ID of the token's owner.
+type BearerTokenInfo interface {
+	ACLRulesContainer
+	ExpirationEpochContainer
+	OwnerIDContainer
+}
+
+// BearerToken is an interface of Bearer token information and key-signature pair.
+type BearerToken interface {
+	BearerTokenInfo
+	OwnerKeyContainer
+	SignatureContainer
+}
+
+// BearerTokenSource is an interface of the container of a BearerToken with read access.
+type BearerTokenSource interface {
+	GetBearerToken() BearerToken
+}
+
+// ExtendedHeader is an interface of string key-value pair with read access.
+type ExtendedHeader interface {
+	Key() string
+	Value() string
+}
+
+// ExtendedHeadersSource is an interface of ExtendedHeader list with read access.
+type ExtendedHeadersSource interface {
+	ExtendedHeaders() []ExtendedHeader
+}

service/verify.go

@@ -67,6 +67,11 @@ func (m *RequestVerificationHeader) SetToken(token *Token) {
 	m.Token = token
 }
 
+// SetBearer is a Bearer field setter.
+func (m *RequestVerificationHeader) SetBearer(v *BearerTokenMsg) {
+	m.Bearer = v
+}
+
 // testCustomField for test usage only.
 type testCustomField [8]uint32
 
@@ -98,3 +103,14 @@ func (t testCustomField) MarshalTo(data []byte) (int, error) { return 0, nil }
 
 // Marshal skip, it's for test usage only.
 func (t testCustomField) Marshal() ([]byte, error) { return nil, nil }
+
+// GetBearerToken wraps Bearer field and return BearerToken interface.
+//
+// If Bearer field value is nil, nil returns.
+func (m RequestVerificationHeader) GetBearerToken() BearerToken {
+	if t := m.GetBearer(); t != nil {
+		return t
+	}
+
+	return nil
+}

service/verify.pb.go

@@ -79,6 +79,8 @@ type RequestVerificationHeader struct {
 	Signatures []*RequestVerificationHeader_Signature `protobuf:"bytes,1,rep,name=Signatures,proto3" json:"Signatures,omitempty"`
 	// Token is a token of the session within which the request is sent
 	Token *Token `protobuf:"bytes,2,opt,name=Token,proto3" json:"Token,omitempty"`
+	// Bearer is a Bearer token of the request
+	Bearer               *BearerTokenMsg `protobuf:"bytes,3,opt,name=Bearer,proto3" json:"Bearer,omitempty"`
 	XXX_NoUnkeyedLiteral struct{}        `json:"-"`
 	XXX_unrecognized     []byte          `json:"-"`
 	XXX_sizecache        int32           `json:"-"`
@@ -127,6 +129,13 @@ func (m *RequestVerificationHeader) GetToken() *Token {
 	return nil
 }
 
+func (m *RequestVerificationHeader) GetBearer() *BearerTokenMsg {
+	if m != nil {
+		return m.Bearer
+	}
+	return nil
+}
+
 type RequestVerificationHeader_Signature struct {
 	// Sign is signature of the request or session key.
 	Sign []byte `protobuf:"bytes,1,opt,name=Sign,proto3" json:"Sign,omitempty"`
@@ -351,6 +360,117 @@ func (m *TokenLifetime) GetValidUntil() uint64 {
 	return 0
 }
 
+// BearerTokenMsg carries information about request ACL rules with limited lifetime
+type BearerTokenMsg struct {
+	// TokenInfo is a grouped information about token
+	BearerTokenMsg_Info `protobuf:"bytes,1,opt,name=TokenInfo,proto3,embedded=TokenInfo" json:"TokenInfo"`
+	// OwnerKey is a public key of the token owner
+	OwnerKey []byte `protobuf:"bytes,2,opt,name=OwnerKey,proto3" json:"OwnerKey,omitempty"`
+	// Signature is a signature of token information
+	Signature            []byte   `protobuf:"bytes,3,opt,name=Signature,proto3" json:"Signature,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *BearerTokenMsg) Reset()         { *m = BearerTokenMsg{} }
+func (m *BearerTokenMsg) String() string { return proto.CompactTextString(m) }
+func (*BearerTokenMsg) ProtoMessage()    {}
+func (*BearerTokenMsg) Descriptor() ([]byte, []int) {
+	return fileDescriptor_4bdd5bc50ec96238, []int{3}
+}
+func (m *BearerTokenMsg) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *BearerTokenMsg) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	b = b[:cap(b)]
+	n, err := m.MarshalToSizedBuffer(b)
+	if err != nil {
+		return nil, err
+	}
+	return b[:n], nil
+}
+func (m *BearerTokenMsg) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_BearerTokenMsg.Merge(m, src)
+}
+func (m *BearerTokenMsg) XXX_Size() int {
+	return m.Size()
+}
+func (m *BearerTokenMsg) XXX_DiscardUnknown() {
+	xxx_messageInfo_BearerTokenMsg.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_BearerTokenMsg proto.InternalMessageInfo
+
+func (m *BearerTokenMsg) GetOwnerKey() []byte {
+	if m != nil {
+		return m.OwnerKey
+	}
+	return nil
+}
+
+func (m *BearerTokenMsg) GetSignature() []byte {
+	if m != nil {
+		return m.Signature
+	}
+	return nil
+}
+
+type BearerTokenMsg_Info struct {
+	// ACLRules carries a binary representation of the table of extended ACL rules
+	ACLRules []byte `protobuf:"bytes,1,opt,name=ACLRules,proto3" json:"ACLRules,omitempty"`
+	// OwnerID is an owner of token
+	OwnerID OwnerID `protobuf:"bytes,2,opt,name=OwnerID,proto3,customtype=OwnerID" json:"OwnerID"`
+	// ValidUntil carries a last epoch of token lifetime
+	ValidUntil           uint64   `protobuf:"varint,3,opt,name=ValidUntil,proto3" json:"ValidUntil,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *BearerTokenMsg_Info) Reset()         { *m = BearerTokenMsg_Info{} }
+func (m *BearerTokenMsg_Info) String() string { return proto.CompactTextString(m) }
+func (*BearerTokenMsg_Info) ProtoMessage()    {}
+func (*BearerTokenMsg_Info) Descriptor() ([]byte, []int) {
+	return fileDescriptor_4bdd5bc50ec96238, []int{3, 0}
+}
+func (m *BearerTokenMsg_Info) XXX_Unmarshal(b []byte) error {
+	return m.Unmarshal(b)
+}
+func (m *BearerTokenMsg_Info) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	b = b[:cap(b)]
+	n, err := m.MarshalToSizedBuffer(b)
+	if err != nil {
+		return nil, err
+	}
+	return b[:n], nil
+}
+func (m *BearerTokenMsg_Info) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_BearerTokenMsg_Info.Merge(m, src)
+}
+func (m *BearerTokenMsg_Info) XXX_Size() int {
+	return m.Size()
+}
+func (m *BearerTokenMsg_Info) XXX_DiscardUnknown() {
+	xxx_messageInfo_BearerTokenMsg_Info.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_BearerTokenMsg_Info proto.InternalMessageInfo
+
+func (m *BearerTokenMsg_Info) GetACLRules() []byte {
+	if m != nil {
+		return m.ACLRules
+	}
+	return nil
+}
+
+func (m *BearerTokenMsg_Info) GetValidUntil() uint64 {
+	if m != nil {
+		return m.ValidUntil
+	}
+	return 0
+}
+
 func init() {
 	proto.RegisterEnum("service.Token_Info_Verb", Token_Info_Verb_name, Token_Info_Verb_value)
 	proto.RegisterType((*RequestVerificationHeader)(nil), "service.RequestVerificationHeader")
@@ -358,49 +478,56 @@ func init() {
 	proto.RegisterType((*Token)(nil), "service.Token")
 	proto.RegisterType((*Token_Info)(nil), "service.Token.Info")
 	proto.RegisterType((*TokenLifetime)(nil), "service.TokenLifetime")
+	proto.RegisterType((*BearerTokenMsg)(nil), "service.BearerTokenMsg")
+	proto.RegisterType((*BearerTokenMsg_Info)(nil), "service.BearerTokenMsg.Info")
 }
 
 func init() { proto.RegisterFile("service/verify.proto", fileDescriptor_4bdd5bc50ec96238) }
 
 var fileDescriptor_4bdd5bc50ec96238 = []byte{
-	// 579 bytes of a gzipped FileDescriptorProto
+	// 658 bytes of a gzipped FileDescriptorProto
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-	0x03, 0x00, 0x00,
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+	0xcf, 0xf3, 0xaa, 0xf2, 0xfe, 0x4b, 0x75, 0xed, 0xd5, 0x5e, 0xe6, 0x2b, 0x14, 0xc8, 0x71, 0xbf,
+	0xdf, 0x18, 0xe0, 0xd4, 0x09, 0x30, 0x1c, 0xca, 0x86, 0x3b, 0xf6, 0x1b, 0x5e, 0xe8, 0xa4, 0x27,
+	0xf9, 0x50, 0xf8, 0xfb, 0x39, 0x86, 0x8f, 0xbb, 0xf6, 0xc1, 0x49, 0xc7, 0xee, 0x26, 0x5c, 0xaf,
+	0x44, 0x1f, 0xa7, 0xfd, 0x1f, 0x01, 0x00, 0x00, 0xff, 0xff, 0x3b, 0x49, 0xb9, 0x3e, 0xfe, 0x04,
+	0x00, 0x00,
 }
 
 func (m *RequestVerificationHeader) Marshal() (dAtA []byte, err error) {
@@ -427,6 +554,18 @@ func (m *RequestVerificationHeader) MarshalToSizedBuffer(dAtA []byte) (int, erro
 		i -= len(m.XXX_unrecognized)
 		copy(dAtA[i:], m.XXX_unrecognized)
 	}
+	if m.Bearer != nil {
+		{
+			size, err := m.Bearer.MarshalToSizedBuffer(dAtA[:i])
+			if err != nil {
+				return 0, err
+			}
+			i -= size
+			i = encodeVarintVerify(dAtA, i, uint64(size))
+		}
+		i--
+		dAtA[i] = 0x1a
+	}
 	if m.Token != nil {
 		{
 			size, err := m.Token.MarshalToSizedBuffer(dAtA[:i])
@@ -664,6 +803,106 @@ func (m *TokenLifetime) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	return len(dAtA) - i, nil
 }
 
+func (m *BearerTokenMsg) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *BearerTokenMsg) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *BearerTokenMsg) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if len(m.Signature) > 0 {
+		i -= len(m.Signature)
+		copy(dAtA[i:], m.Signature)
+		i = encodeVarintVerify(dAtA, i, uint64(len(m.Signature)))
+		i--
+		dAtA[i] = 0x1a
+	}
+	if len(m.OwnerKey) > 0 {
+		i -= len(m.OwnerKey)
+		copy(dAtA[i:], m.OwnerKey)
+		i = encodeVarintVerify(dAtA, i, uint64(len(m.OwnerKey)))
+		i--
+		dAtA[i] = 0x12
+	}
+	{
+		size, err := m.BearerTokenMsg_Info.MarshalToSizedBuffer(dAtA[:i])
+		if err != nil {
+			return 0, err
+		}
+		i -= size
+		i = encodeVarintVerify(dAtA, i, uint64(size))
+	}
+	i--
+	dAtA[i] = 0xa
+	return len(dAtA) - i, nil
+}
+
+func (m *BearerTokenMsg_Info) Marshal() (dAtA []byte, err error) {
+	size := m.Size()
+	dAtA = make([]byte, size)
+	n, err := m.MarshalToSizedBuffer(dAtA[:size])
+	if err != nil {
+		return nil, err
+	}
+	return dAtA[:n], nil
+}
+
+func (m *BearerTokenMsg_Info) MarshalTo(dAtA []byte) (int, error) {
+	size := m.Size()
+	return m.MarshalToSizedBuffer(dAtA[:size])
+}
+
+func (m *BearerTokenMsg_Info) MarshalToSizedBuffer(dAtA []byte) (int, error) {
+	i := len(dAtA)
+	_ = i
+	var l int
+	_ = l
+	if m.XXX_unrecognized != nil {
+		i -= len(m.XXX_unrecognized)
+		copy(dAtA[i:], m.XXX_unrecognized)
+	}
+	if m.ValidUntil != 0 {
+		i = encodeVarintVerify(dAtA, i, uint64(m.ValidUntil))
+		i--
+		dAtA[i] = 0x18
+	}
+	{
+		size := m.OwnerID.Size()
+		i -= size
+		if _, err := m.OwnerID.MarshalTo(dAtA[i:]); err != nil {
+			return 0, err
+		}
+		i = encodeVarintVerify(dAtA, i, uint64(size))
+	}
+	i--
+	dAtA[i] = 0x12
+	if len(m.ACLRules) > 0 {
+		i -= len(m.ACLRules)
+		copy(dAtA[i:], m.ACLRules)
+		i = encodeVarintVerify(dAtA, i, uint64(len(m.ACLRules)))
+		i--
+		dAtA[i] = 0xa
+	}
+	return len(dAtA) - i, nil
+}
+
 func encodeVarintVerify(dAtA []byte, offset int, v uint64) int {
 	offset -= sovVerify(v)
 	base := offset
@@ -691,6 +930,10 @@ func (m *RequestVerificationHeader) Size() (n int) {
 		l = m.Token.Size()
 		n += 1 + l + sovVerify(uint64(l))
 	}
+	if m.Bearer != nil {
+		l = m.Bearer.Size()
+		n += 1 + l + sovVerify(uint64(l))
+	}
 	if m.XXX_unrecognized != nil {
 		n += len(m.XXX_unrecognized)
 	}
@@ -784,6 +1027,49 @@ func (m *TokenLifetime) Size() (n int) {
 	return n
 }
 
+func (m *BearerTokenMsg) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = m.BearerTokenMsg_Info.Size()
+	n += 1 + l + sovVerify(uint64(l))
+	l = len(m.OwnerKey)
+	if l > 0 {
+		n += 1 + l + sovVerify(uint64(l))
+	}
+	l = len(m.Signature)
+	if l > 0 {
+		n += 1 + l + sovVerify(uint64(l))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
+func (m *BearerTokenMsg_Info) Size() (n int) {
+	if m == nil {
+		return 0
+	}
+	var l int
+	_ = l
+	l = len(m.ACLRules)
+	if l > 0 {
+		n += 1 + l + sovVerify(uint64(l))
+	}
+	l = m.OwnerID.Size()
+	n += 1 + l + sovVerify(uint64(l))
+	if m.ValidUntil != 0 {
+		n += 1 + sovVerify(uint64(m.ValidUntil))
+	}
+	if m.XXX_unrecognized != nil {
+		n += len(m.XXX_unrecognized)
+	}
+	return n
+}
+
 func sovVerify(x uint64) (n int) {
 	return (math_bits.Len64(x|1) + 6) / 7
 }
@@ -889,6 +1175,42 @@ func (m *RequestVerificationHeader) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
+		case 3:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Bearer", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVerify
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthVerify
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if m.Bearer == nil {
+				m.Bearer = &BearerTokenMsg{}
+			}
+			if err := m.Bearer.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipVerify(dAtA[iNdEx:])
@@ -1522,6 +1844,301 @@ func (m *TokenLifetime) Unmarshal(dAtA []byte) error {
 	}
 	return nil
 }
+func (m *BearerTokenMsg) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowVerify
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: BearerTokenMsg: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: BearerTokenMsg: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field BearerTokenMsg_Info", wireType)
+			}
+			var msglen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVerify
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				msglen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if msglen < 0 {
+				return ErrInvalidLengthVerify
+			}
+			postIndex := iNdEx + msglen
+			if postIndex < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.BearerTokenMsg_Info.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field OwnerKey", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVerify
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthVerify
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.OwnerKey = append(m.OwnerKey[:0], dAtA[iNdEx:postIndex]...)
+			if m.OwnerKey == nil {
+				m.OwnerKey = []byte{}
+			}
+			iNdEx = postIndex
+		case 3:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field Signature", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVerify
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthVerify
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.Signature = append(m.Signature[:0], dAtA[iNdEx:postIndex]...)
+			if m.Signature == nil {
+				m.Signature = []byte{}
+			}
+			iNdEx = postIndex
+		default:
+			iNdEx = preIndex
+			skippy, err := skipVerify(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
+func (m *BearerTokenMsg_Info) Unmarshal(dAtA []byte) error {
+	l := len(dAtA)
+	iNdEx := 0
+	for iNdEx < l {
+		preIndex := iNdEx
+		var wire uint64
+		for shift := uint(0); ; shift += 7 {
+			if shift >= 64 {
+				return ErrIntOverflowVerify
+			}
+			if iNdEx >= l {
+				return io.ErrUnexpectedEOF
+			}
+			b := dAtA[iNdEx]
+			iNdEx++
+			wire |= uint64(b&0x7F) << shift
+			if b < 0x80 {
+				break
+			}
+		}
+		fieldNum := int32(wire >> 3)
+		wireType := int(wire & 0x7)
+		if wireType == 4 {
+			return fmt.Errorf("proto: Info: wiretype end group for non-group")
+		}
+		if fieldNum <= 0 {
+			return fmt.Errorf("proto: Info: illegal tag %d (wire type %d)", fieldNum, wire)
+		}
+		switch fieldNum {
+		case 1:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ACLRules", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVerify
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthVerify
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.ACLRules = append(m.ACLRules[:0], dAtA[iNdEx:postIndex]...)
+			if m.ACLRules == nil {
+				m.ACLRules = []byte{}
+			}
+			iNdEx = postIndex
+		case 2:
+			if wireType != 2 {
+				return fmt.Errorf("proto: wrong wireType = %d for field OwnerID", wireType)
+			}
+			var byteLen int
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVerify
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				byteLen |= int(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+			if byteLen < 0 {
+				return ErrInvalidLengthVerify
+			}
+			postIndex := iNdEx + byteLen
+			if postIndex < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if postIndex > l {
+				return io.ErrUnexpectedEOF
+			}
+			if err := m.OwnerID.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
+				return err
+			}
+			iNdEx = postIndex
+		case 3:
+			if wireType != 0 {
+				return fmt.Errorf("proto: wrong wireType = %d for field ValidUntil", wireType)
+			}
+			m.ValidUntil = 0
+			for shift := uint(0); ; shift += 7 {
+				if shift >= 64 {
+					return ErrIntOverflowVerify
+				}
+				if iNdEx >= l {
+					return io.ErrUnexpectedEOF
+				}
+				b := dAtA[iNdEx]
+				iNdEx++
+				m.ValidUntil |= uint64(b&0x7F) << shift
+				if b < 0x80 {
+					break
+				}
+			}
+		default:
+			iNdEx = preIndex
+			skippy, err := skipVerify(dAtA[iNdEx:])
+			if err != nil {
+				return err
+			}
+			if skippy < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if (iNdEx + skippy) < 0 {
+				return ErrInvalidLengthVerify
+			}
+			if (iNdEx + skippy) > l {
+				return io.ErrUnexpectedEOF
+			}
+			m.XXX_unrecognized = append(m.XXX_unrecognized, dAtA[iNdEx:iNdEx+skippy]...)
+			iNdEx += skippy
+		}
+	}
+
+	if iNdEx > l {
+		return io.ErrUnexpectedEOF
+	}
+	return nil
+}
 func skipVerify(dAtA []byte) (n int, err error) {
 	l := len(dAtA)
 	iNdEx := 0

service/verify.proto

@@ -23,6 +23,9 @@ message RequestVerificationHeader {
 
     // Token is a token of the session within which the request is sent
     Token Token = 2;
+
+    // Bearer is a Bearer token of the request
+    BearerTokenMsg Bearer = 3;
 }
 
 // User token granting rights for object manipulation
@@ -91,3 +94,26 @@ message TokenLifetime {
 //     uint32 Version = 2;
 //     bytes Data = 3;
 // }
+
+// BearerTokenMsg carries information about request ACL rules with limited lifetime
+message BearerTokenMsg {
+    message Info {
+        // ACLRules carries a binary representation of the table of extended ACL rules
+        bytes ACLRules = 1;
+
+        // OwnerID is an owner of token
+        bytes OwnerID = 2 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false];
+
+        // ValidUntil carries a last epoch of token lifetime
+        uint64 ValidUntil = 3;
+    }
+
+    // TokenInfo is a grouped information about token
+    Info TokenInfo = 1 [(gogoproto.embed) = true, (gogoproto.nullable) = false];
+
+    // OwnerKey is a public key of the token owner
+    bytes OwnerKey = 2;
+
+    // Signature is a signature of token information
+    bytes Signature = 3;
+}

service/verify_test.go

@@ -69,7 +69,7 @@ func BenchmarkSignDataWithSessionToken(b *testing.B) {
 	b.ReportAllocs()
 
 	for i := 0; i < b.N; i++ {
-		require.NoError(b, SignDataWithSessionToken(key, req))
+		require.NoError(b, SignRequestData(key, req))
 	}
 }
 
@@ -91,14 +91,14 @@ func BenchmarkVerifyAccumulatedSignaturesWithToken(b *testing.B) {
 
 	for i := 0; i < 10; i++ {
 		key := test.DecodeKey(i)
-		require.NoError(b, SignDataWithSessionToken(key, req))
+		require.NoError(b, SignRequestData(key, req))
 	}
 
 	b.ResetTimer()
 	b.ReportAllocs()
 
 	for i := 0; i < b.N; i++ {
-		require.NoError(b, VerifyAccumulatedSignaturesWithToken(req))
+		require.NoError(b, VerifyRequestData(req))
 	}
 }
 
@@ -115,3 +115,26 @@ func TestRequestVerificationHeader_SetToken(t *testing.T) {
 
 	require.Equal(t, token, h.GetToken())
 }
+
+func TestRequestVerificationHeader_SetBearer(t *testing.T) {
+	aclRules := []byte{1, 2, 3}
+
+	token := new(BearerTokenMsg)
+	token.SetACLRules(aclRules)
+
+	h := new(RequestVerificationHeader)
+
+	h.SetBearer(token)
+
+	require.Equal(t, token, h.GetBearer())
+}
+
+func TestRequestVerificationHeader_GetBearerToken(t *testing.T) {
+	s := new(RequestVerificationHeader)
+
+	require.Nil(t, s.GetBearerToken())
+
+	bearer := new(BearerTokenMsg)
+	s.SetBearer(bearer)
+	require.Equal(t, bearer, s.GetBearerToken())
+}

session/create.go

@@ -53,7 +53,7 @@ func (s gRPCCreator) Create(ctx context.Context, p CreateParamsSource) (CreateRe
 	req.SetExpirationEpoch(p.ExpirationEpoch())
 
 	// sign with private key
-	if err := service.SignDataWithSessionToken(s.key, req); err != nil {
+	if err := service.SignRequestData(s.key, req); err != nil {
 		return nil, err
 	}
 

session/create_test.go

@@ -84,7 +84,7 @@ func TestGRPCCreator_Create(t *testing.T) {
 			require.Equal(t, ownerID, req.GetOwnerID())
 			require.Equal(t, created, req.CreationEpoch())
 			require.Equal(t, expired, req.ExpirationEpoch())
-			require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(req))
+			require.NoError(t, service.VerifyRequestData(req))
 		},
 		resp: &CreateResponse{
 			ID:         TokenID{1, 2, 3},

state/sign_test.go

@@ -12,7 +12,7 @@ func TestRequestSign(t *testing.T) {
 	sk := test.DecodeKey(0)
 
 	type sigType interface {
-		service.SignedDataWithToken
+		service.RequestData
 		service.SignKeyPairAccumulator
 		service.SignKeyPairSource
 		SetToken(*service.Token)
@@ -68,26 +68,26 @@ func TestRequestSign(t *testing.T) {
 			token := new(service.Token)
 			v.SetToken(token)
 
-			require.NoError(t, service.SignDataWithSessionToken(sk, v))
+			require.NoError(t, service.SignRequestData(sk, v))
 
-			require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.NoError(t, service.VerifyRequestData(v))
 
 			token.SetSessionKey(append(token.GetSessionKey(), 1))
 
-			require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+			require.Error(t, service.VerifyRequestData(v))
 		}
 
 		{ // payload corruptions
 			for _, corruption := range item.payloadCorrupt {
 				v := item.constructor()
 
-				require.NoError(t, service.SignDataWithSessionToken(sk, v))
+				require.NoError(t, service.SignRequestData(sk, v))
 
-				require.NoError(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.NoError(t, service.VerifyRequestData(v))
 
 				corruption(v)
 
-				require.Error(t, service.VerifyAccumulatedSignaturesWithToken(v))
+				require.Error(t, service.VerifyRequestData(v))
 			}
 		}
 	}