[#1423] session: Upgrade SDK package

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

cmd/neofs-cli/internal/client/client.go

@@ -337,7 +337,7 @@ func PutObject(prm PutObjectPrm) (*PutObjectRes, error) {
 		wrt.MarkLocal()
 	}
 
-	wrt.WithXHeaders(prm.xHeadersPrm()...)
+	wrt.WithXHeaders(prm.xHeaders...)
 
 	if wrt.WriteHeader(*prm.hdr) {
 		sz := prm.hdr.PayloadSize()
@@ -437,7 +437,7 @@ func DeleteObject(prm DeleteObjectPrm) (*DeleteObjectRes, error) {
 		delPrm.WithBearerToken(*prm.bearerToken)
 	}
 
-	delPrm.WithXHeaders(prm.xHeadersPrm()...)
+	delPrm.WithXHeaders(prm.xHeaders...)
 
 	cliRes, err := prm.cli.ObjectDelete(context.Background(), delPrm)
 	if err != nil {
@@ -517,7 +517,7 @@ func GetObject(prm GetObjectPrm) (*GetObjectRes, error) {
 		getPrm.MarkLocal()
 	}
 
-	getPrm.WithXHeaders(prm.xHeadersPrm()...)
+	getPrm.WithXHeaders(prm.xHeaders...)
 
 	rdr, err := prm.cli.ObjectGetInit(context.Background(), getPrm)
 	if err != nil {
@@ -599,7 +599,7 @@ func HeadObject(prm HeadObjectPrm) (*HeadObjectRes, error) {
 		cliPrm.MarkLocal()
 	}
 
-	cliPrm.WithXHeaders(prm.xHeadersPrm()...)
+	cliPrm.WithXHeaders(prm.xHeaders...)
 
 	res, err := prm.cli.ObjectHead(context.Background(), cliPrm)
 	if err != nil {
@@ -664,7 +664,7 @@ func SearchObjects(prm SearchObjectsPrm) (*SearchObjectsRes, error) {
 		cliPrm.MarkLocal()
 	}
 
-	cliPrm.WithXHeaders(prm.xHeadersPrm()...)
+	cliPrm.WithXHeaders(prm.xHeaders...)
 
 	rdr, err := prm.cli.ObjectSearchInit(context.Background(), cliPrm)
 	if err != nil {
@@ -775,7 +775,7 @@ func HashPayloadRanges(prm HashPayloadRangesPrm) (*HashPayloadRangesRes, error)
 		cliPrm.WithBearerToken(*prm.bearerToken)
 	}
 
-	cliPrm.WithXHeaders(prm.xHeadersPrm()...)
+	cliPrm.WithXHeaders(prm.xHeaders...)
 
 	res, err := prm.cli.ObjectHash(context.Background(), cliPrm)
 	if err != nil {
@@ -841,7 +841,7 @@ func PayloadRange(prm PayloadRangePrm) (*PayloadRangeRes, error) {
 	cliPrm.SetOffset(prm.rng.GetOffset())
 	cliPrm.SetLength(prm.rng.GetLength())
 
-	cliPrm.WithXHeaders(prm.xHeadersPrm()...)
+	cliPrm.WithXHeaders(prm.xHeaders...)
 
 	rdr, err := prm.cli.ObjectRangeInit(context.Background(), cliPrm)
 	if err != nil {

cmd/neofs-cli/internal/client/prm.go

@@ -30,15 +30,6 @@ func (x *containerIDPrm) SetContainerID(id *cid.ID) {
 	x.cnrID = id
 }
 
-type sessionTokenPrm struct {
-	sessionToken *session.Token
-}
-
-// SetSessionToken sets the token of the session within which the request should be sent.
-func (x *sessionTokenPrm) SetSessionToken(tok *session.Token) {
-	x.sessionToken = tok
-}
-
 type bearerTokenPrm struct {
 	bearerToken *bearer.Token
 }
@@ -76,12 +67,13 @@ func (x *payloadWriterPrm) SetPayloadWriter(wrt io.Writer) {
 
 type commonObjectPrm struct {
 	commonPrm
-	sessionTokenPrm
 	bearerTokenPrm
 
+	sessionToken *session.Object
+
 	local bool
 
-	xHeaders []*session.XHeader
+	xHeaders []string
 }
 
 // SetTTL sets request TTL value.
@@ -90,19 +82,11 @@ func (x *commonObjectPrm) SetTTL(ttl uint32) {
 }
 
 // SetXHeaders sets request X-Headers.
-func (x *commonObjectPrm) SetXHeaders(hs []*session.XHeader) {
+func (x *commonObjectPrm) SetXHeaders(hs []string) {
 	x.xHeaders = hs
 }
 
-func (x commonObjectPrm) xHeadersPrm() (res []string) {
-	if x.xHeaders != nil {
-		res = make([]string, len(x.xHeaders)*2)
-
-		for i := range x.xHeaders {
-			res[2*i] = x.xHeaders[i].Key()
-			res[2*i+1] = x.xHeaders[i].Value()
-		}
-	}
-
-	return
+// SetSessionToken sets the token of the session within which the request should be sent.
+func (x *commonObjectPrm) SetSessionToken(tok *session.Object) {
+	x.sessionToken = tok
 }

cmd/neofs-cli/internal/common/token.go

@@ -1,10 +1,10 @@
 package common
 
 import (
+	"encoding/json"
 	"os"
 
 	"github.com/nspcc-dev/neofs-sdk-go/bearer"
-	"github.com/nspcc-dev/neofs-sdk-go/session"
 	"github.com/spf13/cobra"
 )
 
@@ -35,23 +35,11 @@ func ReadBearerToken(cmd *cobra.Command, flagname string) *bearer.Token {
 
 // ReadSessionToken reads session token as JSON file with session token
 // from path provided in a specified flag.
-func ReadSessionToken(cmd *cobra.Command, flag string) *session.Token {
+func ReadSessionToken(cmd *cobra.Command, dst json.Unmarshaler, fPath string) {
 	// try to read session token from file
-	var tok *session.Token
-
-	path, err := cmd.Flags().GetString(flag)
-	ExitOnErr(cmd, "", err)
-
-	if path == "" {
-		return tok
-	}
-
-	data, err := os.ReadFile(path)
+	data, err := os.ReadFile(fPath)
 	ExitOnErr(cmd, "could not open file with session token: %w", err)
 
-	tok = session.NewToken()
-	err = tok.UnmarshalJSON(data)
-	ExitOnErr(cmd, "could not ummarshal session token from file: %w", err)
-
-	return tok
+	err = dst.UnmarshalJSON(data)
+	ExitOnErr(cmd, "could not unmarshal session token from file: %w", err)
 }

cmd/neofs-cli/modules/container.go

@@ -24,6 +24,7 @@ import (
 	"github.com/nspcc-dev/neofs-sdk-go/object"
 	addressSDK "github.com/nspcc-dev/neofs-sdk-go/object/address"
 	"github.com/nspcc-dev/neofs-sdk-go/policy"
+	"github.com/nspcc-dev/neofs-sdk-go/session"
 	subnetid "github.com/nspcc-dev/neofs-sdk-go/subnet/id"
 	"github.com/nspcc-dev/neofs-sdk-go/user"
 	versionSDK "github.com/nspcc-dev/neofs-sdk-go/version"
@@ -158,26 +159,33 @@ It will be stored in sidechain when inner ring will accepts it.`,
 		nonce, err := parseNonce(containerNonce)
 		common.ExitOnErr(cmd, "", err)
 
-		tok := common.ReadSessionToken(cmd, sessionTokenFlag)
 		key := key.GetOrGenerate(cmd)
 
-		var idOwner *user.ID
+		cnr := container.New()
+		var tok *session.Container
 
-		if idOwner = tok.OwnerID(); idOwner == nil {
-			idOwner = new(user.ID)
-			user.IDFromKey(idOwner, key.PublicKey)
+		if sessionTokenPath != "" {
+			tok = new(session.Container)
+			common.ReadSessionToken(cmd, tok, sessionTokenPath)
+
+			issuer := tok.Issuer()
+			cnr.SetOwnerID(&issuer)
+			cnr.SetSessionToken(tok)
+		} else {
+			var idOwner user.ID
+			user.IDFromKey(&idOwner, key.PublicKey)
+
+			cnr.SetOwnerID(&idOwner)
 		}
 
 		ver := versionSDK.Current()
 
-		cnr := container.New()
 		cnr.SetVersion(&ver)
 		cnr.SetPlacementPolicy(placementPolicy)
 		cnr.SetBasicACL(basicACL)
 		cnr.SetAttributes(attributes)
 		cnr.SetNonceUUID(nonce)
 		cnr.SetSessionToken(tok)
-		cnr.SetOwnerID(idOwner)
 
 		var (
 			putPrm internalclient.PutContainerPrm
@@ -223,7 +231,12 @@ Only owner of the container has a permission to remove container.`,
 		id, err := parseContainerID(containerID)
 		common.ExitOnErr(cmd, "", err)
 
-		tok := common.ReadSessionToken(cmd, sessionTokenFlag)
+		var tok *session.Container
+
+		if sessionTokenPath != "" {
+			tok = new(session.Container)
+			common.ReadSessionToken(cmd, tok, sessionTokenPath)
+		}
 
 		var (
 			delPrm internalclient.DeleteContainerPrm
@@ -234,7 +247,7 @@ Only owner of the container has a permission to remove container.`,
 		delPrm.SetContainer(*id)
 
 		if tok != nil {
-			delPrm.SetSessionToken(*tok)
+			delPrm.WithinSession(*tok)
 		}
 
 		_, err = internalclient.DeleteContainer(delPrm)
@@ -412,7 +425,12 @@ Container ID in EACL table will be substituted with ID from the CLI.`,
 
 		eaclTable := common.ReadEACL(cmd, eaclPathFrom)
 
-		tok := common.ReadSessionToken(cmd, sessionTokenFlag)
+		var tok *session.Container
+
+		if sessionTokenPath != "" {
+			tok = new(session.Container)
+			common.ReadSessionToken(cmd, tok, sessionTokenPath)
+		}
 
 		eaclTable.SetCID(*id)
 		eaclTable.SetSessionToken(tok)

cmd/neofs-cli/modules/object.go

@@ -314,7 +314,7 @@ func init() {
 
 type clientKeySession interface {
 	clientWithKey
-	SetSessionToken(*session.Token)
+	SetSessionToken(*session.Object)
 }
 
 func prepareSessionPrm(cmd *cobra.Command, addr *addressSDK.Address, prms ...clientKeySession) {
@@ -339,65 +339,54 @@ func prepareSessionPrmWithOwner(
 ) {
 	cli := internalclient.GetSDKClientByFlag(cmd, key, commonflags.RPC)
 
-	var sessionToken *session.Token
+	var tok session.Object
 	if tokenPath, _ := cmd.Flags().GetString(sessionTokenFlag); len(tokenPath) != 0 {
 		data, err := ioutil.ReadFile(tokenPath)
 		common.ExitOnErr(cmd, "can't read session token: %w", err)
 
-		sessionToken = session.NewToken()
-		if err := sessionToken.Unmarshal(data); err != nil {
-			err = sessionToken.UnmarshalJSON(data)
+		if err := tok.Unmarshal(data); err != nil {
+			err = tok.UnmarshalJSON(data)
 			common.ExitOnErr(cmd, "can't unmarshal session token: %w", err)
 		}
 	} else {
-		var err error
-		sessionToken, err = sessionCli.CreateSession(cli, ownerID, sessionTokenLifetime)
-		common.ExitOnErr(cmd, "", err)
+		err := sessionCli.CreateSession(&tok, cli, sessionTokenLifetime)
+		common.ExitOnErr(cmd, "create session: %w", err)
 	}
 
 	for i := range prms {
-		objectContext := session.NewObjectContext()
 		switch prms[i].(type) {
 		case *internalclient.GetObjectPrm:
-			objectContext.ForGet()
+			tok.ForVerb(session.VerbObjectGet)
 		case *internalclient.HeadObjectPrm:
-			objectContext.ForHead()
+			tok.ForVerb(session.VerbObjectHead)
 		case *internalclient.PutObjectPrm:
-			objectContext.ForPut()
+			tok.ForVerb(session.VerbObjectPut)
 		case *internalclient.DeleteObjectPrm:
-			objectContext.ForDelete()
+			tok.ForVerb(session.VerbObjectDelete)
 		case *internalclient.SearchObjectsPrm:
-			objectContext.ForSearch()
+			tok.ForVerb(session.VerbObjectSearch)
 		case *internalclient.PayloadRangePrm:
-			objectContext.ForRange()
+			tok.ForVerb(session.VerbObjectRange)
 		case *internalclient.HashPayloadRangesPrm:
-			objectContext.ForRangeHash()
+			tok.ForVerb(session.VerbObjectRangeHash)
 		default:
 			panic("invalid client parameter type")
 		}
-		objectContext.ApplyTo(addr)
 
-		tok := session.NewToken()
-		tok.SetID(sessionToken.ID())
-		tok.SetSessionKey(sessionToken.SessionKey())
-		tok.SetOwnerID(sessionToken.OwnerID())
-		tok.SetContext(objectContext)
-		tok.SetExp(sessionToken.Exp())
-		tok.SetIat(sessionToken.Iat())
-		tok.SetNbf(sessionToken.Nbf())
+		tok.ApplyTo(*addr)
 
-		err := tok.Sign(key)
+		err := tok.Sign(*key)
 		common.ExitOnErr(cmd, "session token signing: %w", err)
 
 		prms[i].SetClient(cli)
-		prms[i].SetSessionToken(tok)
+		prms[i].SetSessionToken(&tok)
 	}
 }
 
 type objectPrm interface {
 	bearerPrm
 	SetTTL(uint32)
-	SetXHeaders([]*session.XHeader)
+	SetXHeaders([]string)
 }
 
 func prepareObjectPrm(cmd *cobra.Command, prms ...objectPrm) {

cmd/neofs-cli/modules/root.go

@@ -22,7 +22,6 @@ import (
 	"github.com/nspcc-dev/neofs-node/pkg/util/gendoc"
 	"github.com/nspcc-dev/neofs-sdk-go/bearer"
 	"github.com/nspcc-dev/neofs-sdk-go/client"
-	"github.com/nspcc-dev/neofs-sdk-go/session"
 	"github.com/nspcc-dev/neofs-sdk-go/user"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
@@ -188,8 +187,8 @@ func userFromString(id *user.ID, s string) error {
 	return nil
 }
 
-func parseXHeaders() []*session.XHeader {
-	xs := make([]*session.XHeader, 0, len(xHeaders))
+func parseXHeaders() []string {
+	xs := make([]string, 0, 2*len(xHeaders))
 
 	for i := range xHeaders {
 		kv := strings.SplitN(xHeaders[i], "=", 2)
@@ -197,11 +196,7 @@ func parseXHeaders() []*session.XHeader {
 			panic(fmt.Errorf("invalid X-Header format: %s", xHeaders[i]))
 		}
 
-		x := session.NewXHeader()
-		x.SetKey(kv[0])
-		x.SetValue(kv[1])
-
-		xs = append(xs, x)
+		xs = append(xs, kv[0], kv[1])
 	}
 
 	return xs

cmd/neofs-cli/modules/session/create.go

@@ -4,13 +4,14 @@ import (
 	"fmt"
 	"io/ioutil"
 
+	"github.com/google/uuid"
 	internalclient "github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/client"
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
 	"github.com/nspcc-dev/neofs-node/pkg/network"
 	"github.com/nspcc-dev/neofs-sdk-go/client"
+	neofsecdsa "github.com/nspcc-dev/neofs-sdk-go/crypto/ecdsa"
 	"github.com/nspcc-dev/neofs-sdk-go/session"
-	"github.com/nspcc-dev/neofs-sdk-go/user"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 )
@@ -66,10 +67,9 @@ func createSession(cmd *cobra.Command, _ []string) error {
 		lifetime = lfArg
 	}
 
-	var ownerID user.ID
-	user.IDFromKey(&ownerID, privKey.PublicKey)
+	var tok session.Object
 
-	tok, err := CreateSession(c, &ownerID, lifetime)
+	err = CreateSession(&tok, c, lifetime)
 	if err != nil {
 		return err
 	}
@@ -78,11 +78,11 @@ func createSession(cmd *cobra.Command, _ []string) error {
 
 	if toJSON, _ := cmd.Flags().GetBool(jsonFlag); toJSON {
 		data, err = tok.MarshalJSON()
-	} else {
-		data, err = tok.Marshal()
-	}
 		if err != nil {
-		return fmt.Errorf("can't marshal token: %w", err)
+			return fmt.Errorf("decode session token JSON: %w", err)
+		}
+	} else {
+		data = tok.Marshal()
 	}
 
 	filename, _ := cmd.Flags().GetString(outFlag)
@@ -92,15 +92,18 @@ func createSession(cmd *cobra.Command, _ []string) error {
 	return nil
 }
 
-// CreateSession returns newly created session token with the specified owner and lifetime.
-// `Issued-At` and `Not-Valid-Before` fields are set to current epoch.
-func CreateSession(c *client.Client, owner *user.ID, lifetime uint64) (*session.Token, error) {
+// CreateSession opens a new communication with NeoFS storage node using client connection.
+// The session is expected to be maintained by the storage node during the given
+// number of epochs.
+//
+// Fills ID, lifetime and session key.
+func CreateSession(dst *session.Object, c *client.Client, lifetime uint64) error {
 	var netInfoPrm internalclient.NetworkInfoPrm
 	netInfoPrm.SetClient(c)
 
 	ni, err := internalclient.NetworkInfo(netInfoPrm)
 	if err != nil {
-		return nil, fmt.Errorf("can't fetch network info: %w", err)
+		return fmt.Errorf("can't fetch network info: %w", err)
 	}
 
 	cur := ni.NetworkInfo().CurrentEpoch()
@@ -112,16 +115,30 @@ func CreateSession(c *client.Client, owner *user.ID, lifetime uint64) (*session.
 
 	sessionRes, err := internalclient.CreateSession(sessionPrm)
 	if err != nil {
-		return nil, fmt.Errorf("can't open session: %w", err)
+		return fmt.Errorf("can't open session: %w", err)
 	}
 
-	tok := session.NewToken()
-	tok.SetID(sessionRes.ID())
-	tok.SetSessionKey(sessionRes.SessionKey())
-	tok.SetOwnerID(owner)
-	tok.SetExp(exp)
-	tok.SetIat(cur)
-	tok.SetNbf(cur)
+	binIDSession := sessionRes.ID()
 
-	return tok, nil
+	var keySession neofsecdsa.PublicKey
+
+	err = keySession.Decode(sessionRes.SessionKey())
+	if err != nil {
+		return fmt.Errorf("decode public session key: %w", err)
+	}
+
+	var idSession uuid.UUID
+
+	err = idSession.UnmarshalBinary(binIDSession)
+	if err != nil {
+		return fmt.Errorf("decode session ID: %w", err)
+	}
+
+	dst.SetID(idSession)
+	dst.SetNbf(cur)
+	dst.SetIat(cur)
+	dst.SetExp(exp)
+	dst.SetAuthKey(&keySession)
+
+	return nil
 }

cmd/neofs-cli/modules/util/sign_session.go

@@ -1,12 +1,14 @@
 package util
 
 import (
+	"errors"
 	"fmt"
 	"os"
 
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/common"
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/commonflags"
 	"github.com/nspcc-dev/neofs-node/cmd/neofs-cli/internal/key"
+	"github.com/nspcc-dev/neofs-sdk-go/session"
 	"github.com/spf13/cobra"
 )
 
@@ -29,10 +31,19 @@ func initSignSessionCmd() {
 }
 
 func signSessionToken(cmd *cobra.Command, _ []string) {
-	stok := common.ReadSessionToken(cmd, signFromFlag)
+	fPath, err := cmd.Flags().GetString(signFromFlag)
+	common.ExitOnErr(cmd, "", err)
+
+	if fPath == "" {
+		common.ExitOnErr(cmd, "", errors.New("missing session token flag"))
+	}
+
+	var stok session.Object
+	common.ReadSessionToken(cmd, &stok, signFromFlag)
+
 	pk := key.GetOrGenerate(cmd)
 
-	err := stok.Sign(pk)
+	err = stok.Sign(*pk)
 	common.ExitOnErr(cmd, "can't sign token: %w", err)
 
 	data, err := stok.MarshalJSON()

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20220321144137-d5a9af5860af // indirect
 	github.com/nspcc-dev/neofs-api-go/v2 v2.12.1
 	github.com/nspcc-dev/neofs-contract v0.15.1
-	github.com/nspcc-dev/neofs-sdk-go v1.0.0-rc.3.0.20220424111116-497053c785f5
+	github.com/nspcc-dev/neofs-sdk-go v1.0.0-rc.3.0.20220525080251-1f7fe6864d34
 	github.com/nspcc-dev/tzhash v1.5.2
 	github.com/panjf2000/ants/v2 v2.4.0
 	github.com/paulmach/orb v0.2.2

pkg/core/container/delete.go

@@ -12,7 +12,7 @@ type RemovalWitness struct {
 
 	sig []byte
 
-	token *session.Token
+	token *session.Container
 }
 
 // ContainerID returns the identifier of the container
@@ -39,12 +39,12 @@ func (x *RemovalWitness) SetSignature(sig []byte) {
 
 // SessionToken returns the token of the session within
 // which the container was removed.
-func (x RemovalWitness) SessionToken() *session.Token {
+func (x RemovalWitness) SessionToken() *session.Container {
 	return x.token
 }
 
 // SetSessionToken sets the token of the session within
 // which the container was removed.
-func (x *RemovalWitness) SetSessionToken(tok *session.Token) {
+func (x *RemovalWitness) SetSessionToken(tok *session.Container) {
 	x.token = tok
 }

pkg/core/object/fmt.go

@@ -1,18 +1,16 @@
 package object
 
 import (
-	"bytes"
 	"crypto/ecdsa"
-	"crypto/elliptic"
 	"errors"
 	"fmt"
 	"strconv"
 
-	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
 	"github.com/nspcc-dev/neofs-api-go/v2/refs"
 	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
+	neofsecdsa "github.com/nspcc-dev/neofs-sdk-go/crypto/ecdsa"
 	"github.com/nspcc-dev/neofs-sdk-go/object"
 	addressSDK "github.com/nspcc-dev/neofs-sdk-go/object/address"
 	oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
@@ -139,10 +137,18 @@ func (v *FormatValidator) validateSignatureKey(obj *object.Object) error {
 	var sigV2 refs.Signature
 	sig.WriteToV2(&sigV2)
 
-	key := sigV2.GetKey()
+	binKey := sigV2.GetKey()
+
+	var key neofsecdsa.PublicKey
+
+	err := key.Decode(binKey)
+	if err != nil {
+		return fmt.Errorf("decode public key: %w", err)
+	}
+
 	token := obj.SessionToken()
 
-	if token == nil || !bytes.Equal(token.SessionKey(), key) {
+	if token == nil || !token.AssertAuthKey(&key) {
 		return v.checkOwnerKey(obj.OwnerID(), key)
 	}
 
@@ -151,14 +157,9 @@ func (v *FormatValidator) validateSignatureKey(obj *object.Object) error {
 	return nil
 }
 
-func (v *FormatValidator) checkOwnerKey(id *user.ID, key []byte) error {
-	pub, err := keys.NewPublicKeyFromBytes(key, elliptic.P256())
-	if err != nil {
-		return err
-	}
-
+func (v *FormatValidator) checkOwnerKey(id *user.ID, key neofsecdsa.PublicKey) error {
 	var id2 user.ID
-	user.IDFromKey(&id2, (ecdsa.PublicKey)(*pub))
+	user.IDFromKey(&id2, (ecdsa.PublicKey)(key))
 
 	if !id.Equals(id2) {
 		return fmt.Errorf("(%T) different owner identifiers %s/%s", v, id, id2)

pkg/core/object/fmt_test.go

@@ -88,13 +88,13 @@ func TestFormatValidator_Validate(t *testing.T) {
 		var idOwner user.ID
 		user.IDFromKey(&idOwner, ownerKey.PrivateKey.PublicKey)
 
-		tok := sessiontest.Token()
-		tok.SetOwnerID(&idOwner)
+		tok := sessiontest.Object()
+		tok.Sign(ownerKey.PrivateKey)
 
 		obj := object.New()
 		obj.SetContainerID(cidtest.ID())
-		obj.SetSessionToken(sessiontest.Token())
-		obj.SetOwnerID(tok.OwnerID())
+		obj.SetSessionToken(tok)
+		obj.SetOwnerID(&idOwner)
 
 		require.NoError(t, object.SetIDWithSignature(ownerKey.PrivateKey, obj))
 

pkg/innerring/processors/container/common.go

@@ -3,184 +3,167 @@ package container
 import (
 	"bytes"
 	"crypto/ecdsa"
-	"crypto/elliptic"
 	"errors"
 	"fmt"
 
-	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/client/neofsid"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
+	neofscrypto "github.com/nspcc-dev/neofs-sdk-go/crypto"
+	neofsecdsa "github.com/nspcc-dev/neofs-sdk-go/crypto/ecdsa"
 	"github.com/nspcc-dev/neofs-sdk-go/session"
 	"github.com/nspcc-dev/neofs-sdk-go/user"
 )
 
 var (
-	errWrongSessionContext = errors.New("wrong session context")
 	errWrongSessionVerb = errors.New("wrong token verb")
 	errWrongCID         = errors.New("wrong container ID")
 )
 
-type ownerIDSource interface {
-	OwnerID() *user.ID
+type signatureVerificationData struct {
+	ownerContainer user.ID
+
+	verb session.ContainerVerb
+
+	idContainerSet bool
+	idContainer    cid.ID
+
+	binTokenSession []byte
+
+	binPublicKey []byte
+
+	signature []byte
+
+	signedData []byte
 }
 
-func tokenFromEvent(src interface {
-	SessionToken() []byte
-}) (*session.Token, error) {
-	binToken := src.SessionToken()
+// verifySignature is a common method of Container service authentication. Asserts that:
+//  - for trusted parties: session is valid (*) and issued by container owner
+//  - operation data is signed by container owner or trusted party
+//  - operation data signature is correct
+//
+// (*) includes:
+//  - session token decodes correctly
+//  - signature is valid
+//  - session issued by the container owner
+//  - v.binPublicKey is a public session key
+//  - session context corresponds to the container and verb in v
+//  - session is "alive"
+func (cp *Processor) verifySignature(v signatureVerificationData) error {
+	var err error
+	var key neofsecdsa.PublicKeyRFC6979
+	keyProvided := v.binPublicKey != nil
+	withSession := len(v.binTokenSession) > 0
 
-	if len(binToken) == 0 {
-		return nil, nil
-	}
-
-	tok := session.NewToken()
-
-	err := tok.Unmarshal(binToken)
+	if keyProvided {
+		err = key.Decode(v.binPublicKey)
 		if err != nil {
-		return nil, fmt.Errorf("could not unmarshal session token: %w", err)
-	}
-
-	return tok, nil
-}
-
-func (cp *Processor) checkKeyOwnership(ownerIDSrc ownerIDSource, key *keys.PublicKey) error {
-	if tokenSrc, ok := ownerIDSrc.(interface {
-		SessionToken() *session.Token
-	}); ok {
-		if token := tokenSrc.SessionToken(); token != nil {
-			return cp.checkKeyOwnershipWithToken(ownerIDSrc, key, tokenSrc.SessionToken())
+			return fmt.Errorf("decode public key: %w", err)
 		}
 	}
 
-	ownerSrc := ownerIDSrc.OwnerID()
-	if ownerSrc == nil {
-		return errors.New("missing owner")
-	}
+	if withSession {
+		var tok session.Container
 
-	var ownerKey user.ID
-	user.IDFromKey(&ownerKey, (ecdsa.PublicKey)(*key))
-
-	if ownerSrc.Equals(ownerKey) {
-		return nil
-	}
-
-	prm := neofsid.AccountKeysPrm{}
-	prm.SetID(ownerIDSrc.OwnerID())
-
-	ownerKeys, err := cp.idClient.AccountKeys(prm)
+		err = tok.Unmarshal(v.binTokenSession)
 		if err != nil {
-		return fmt.Errorf("could not received owner keys %s: %w", ownerIDSrc.OwnerID(), err)
+			return fmt.Errorf("decode session token: %w", err)
 		}
 
-	for _, ownerKey := range ownerKeys {
-		if ownerKey.Equal(key) {
-			return nil
-		}
+		if !tok.VerifySignature() {
+			return errors.New("invalid session token signature")
 		}
 
-	return fmt.Errorf("key %s is not tied to the owner of the container", key)
-}
+		// FIXME(@cthulhu-rider): #1387 check token is signed by container owner, see neofs-sdk-go#233
+		//  We'll get container owner's keys which is needed below, so it's worth to cache them
 
-func (cp *Processor) checkKeyOwnershipWithToken(ownerIDSrc ownerIDSource, key *keys.PublicKey, token *session.Token) error {
-	// check session key
-	if !bytes.Equal(
-		key.Bytes(),
-		token.SessionKey(),
-	) {
+		if keyProvided && !tok.AssertAuthKey(&key) {
 			return errors.New("signed with a non-session key")
 		}
 
-	ownerToken, ownerSrc := token.OwnerID(), ownerIDSrc.OwnerID()
-
-	// check owner
-	if ownerToken == nil || ownerSrc == nil || !ownerToken.Equals(*ownerSrc) {
-		return errors.New("owner differs with token owner")
+		if !tok.AssertVerb(v.verb) {
+			return errWrongSessionVerb
 		}
 
-	err := cp.checkSessionToken(token)
-	if err != nil {
-		return fmt.Errorf("invalid session token: %w", err)
-	}
-
-	return nil
-}
-
-func (cp *Processor) checkSessionToken(token *session.Token) error {
-	// verify signature
-	if !token.VerifySignature() {
-		return errors.New("invalid signature")
-	}
-
-	// check lifetime
-	err := cp.checkTokenLifetime(token)
-	if err != nil {
-		return err
-	}
-
-	// check token owner's key ownership
-
-	// FIXME(@cthulhu-rider): #1387 see neofs-sdk-go#233
-	key, err := keys.NewPublicKeyFromBytes(token.ToV2().GetSignature().GetKey(), elliptic.P256())
-	if err != nil {
-		return fmt.Errorf("invalid key: %w", err)
-	}
-
-	return cp.checkKeyOwnership(token, key)
-}
-
-type verbAssert func(*session.ContainerContext) bool
-
-func contextWithVerifiedVerb(tok *session.Token, verbAssert verbAssert) (*session.ContainerContext, error) {
-	c := session.GetContainerContext(tok)
-	if c == nil {
-		return nil, errWrongSessionContext
-	}
-
-	if !verbAssert(c) {
-		return nil, errWrongSessionVerb
-	}
-
-	return c, nil
-}
-
-func checkTokenContext(tok *session.Token, verbAssert verbAssert) error {
-	_, err := contextWithVerifiedVerb(tok, verbAssert)
-	return err
-}
-
-func checkTokenContextWithCID(tok *session.Token, id cid.ID, verbAssert verbAssert) error {
-	c, err := contextWithVerifiedVerb(tok, verbAssert)
-	if err != nil {
-		return err
-	}
-
-	tokCID := c.Container()
-	if tokCID != nil && !tokCID.Equals(id) {
+		if v.idContainerSet && !tok.AppliedTo(v.idContainer) {
 			return errWrongCID
 		}
 
+		if !session.IssuedBy(tok, v.ownerContainer) {
+			return errors.New("owner differs with token owner")
+		}
+
+		err = cp.checkTokenLifetime(tok)
+		if err != nil {
+			return fmt.Errorf("check session lifetime: %w", err)
+		}
+	}
+
+	var verificationKeys []neofscrypto.PublicKey
+
+	if keyProvided {
+		if withSession {
+			verificationKeys = []neofscrypto.PublicKey{&key}
+		} else {
+			var idFromKey user.ID
+			user.IDFromKey(&idFromKey, (ecdsa.PublicKey)(key))
+
+			if v.ownerContainer.Equals(idFromKey) {
+				verificationKeys = []neofscrypto.PublicKey{&key}
+			}
+		}
+	}
+
+	if verificationKeys == nil {
+		var prm neofsid.AccountKeysPrm
+		prm.SetID(&v.ownerContainer)
+
+		ownerKeys, err := cp.idClient.AccountKeys(prm)
+		if err != nil {
+			return fmt.Errorf("receive owner keys %s: %w", v.ownerContainer, err)
+		}
+
+		if !keyProvided {
+			verificationKeys = make([]neofscrypto.PublicKey, 0, len(ownerKeys))
+		}
+
+		for i := range ownerKeys {
+			if keyProvided {
+				// TODO(@cthulhu-rider): keys have been decoded in order to encode only, should be optimized by #1387
+				if bytes.Equal(ownerKeys[i].Bytes(), v.binPublicKey) {
+					verificationKeys = []neofscrypto.PublicKey{(*neofsecdsa.PublicKeyRFC6979)(ownerKeys[i])}
+					break
+				}
+			} else {
+				verificationKeys = append(verificationKeys, (*neofsecdsa.PublicKeyRFC6979)(ownerKeys[i]))
+			}
+		}
+	}
+
+	if len(verificationKeys) == 0 {
+		return errors.New("key is not a container owner's key")
+	}
+
+	for i := range verificationKeys {
+		if verificationKeys[i].Verify(v.signedData, v.signature) {
 			return nil
+		}
+	}
+
+	return errors.New("invalid signature")
 }
 
-func (cp *Processor) checkTokenLifetime(token *session.Token) error {
+func (cp *Processor) checkTokenLifetime(token session.Container) error {
 	curEpoch, err := cp.netState.Epoch()
 	if err != nil {
 		return fmt.Errorf("could not read current epoch: %w", err)
 	}
 
-	nbf := token.Nbf()
-	if curEpoch < nbf {
-		return fmt.Errorf("token is not valid yet: nbf %d, cur %d", nbf, curEpoch)
+	if token.ExpiredAt(curEpoch) {
+		return fmt.Errorf("token is expired at %d", curEpoch)
 	}
 
-	iat := token.Iat()
-	if curEpoch < iat {
-		return fmt.Errorf("token is issued in future: iat %d, cur %d", iat, curEpoch)
-	}
-
-	exp := token.Exp()
-	if curEpoch >= exp {
-		return fmt.Errorf("token is expired: exp %d, cur %d", exp, curEpoch)
+	if token.InvalidAt(curEpoch) {
+		return fmt.Errorf("token is not valid at %d", curEpoch)
 	}
 
 	return nil

pkg/innerring/processors/container/process_container.go

@@ -1,16 +1,12 @@
 package container
 
 import (
-	"crypto/elliptic"
-	"crypto/sha256"
 	"errors"
 	"fmt"
 
-	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/nspcc-dev/neo-go/pkg/network/payload"
 	"github.com/nspcc-dev/neofs-node/pkg/core/container"
 	cntClient "github.com/nspcc-dev/neofs-node/pkg/morph/client/container"
-	"github.com/nspcc-dev/neofs-node/pkg/morph/client/neofsid"
 	morphsubnet "github.com/nspcc-dev/neofs-node/pkg/morph/client/subnet"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/event"
 	containerEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/container"
@@ -62,29 +58,32 @@ func (cp *Processor) processContainerPut(put putEvent) {
 }
 
 func (cp *Processor) checkPutContainer(ctx *putContainerContext) error {
-	e := ctx.e
+	binCnr := ctx.e.Container()
 
-	// verify signature
-	key, err := keys.NewPublicKeyFromBytes(e.PublicKey(), elliptic.P256())
-	if err != nil {
-		return fmt.Errorf("invalid key: %w", err)
-	}
-
-	binCnr := e.Container()
-	tableHash := sha256.Sum256(binCnr)
-
-	if !key.Verify(e.Signature(), tableHash[:]) {
-		return errors.New("invalid signature")
-	}
-
-	// unmarshal container structure
 	cnr := containerSDK.New()
 
-	err = cnr.Unmarshal(binCnr)
+	err := cnr.Unmarshal(binCnr)
 	if err != nil {
 		return fmt.Errorf("invalid binary container: %w", err)
 	}
 
+	ownerContainer := cnr.OwnerID()
+	if ownerContainer == nil {
+		return errors.New("missing container owner")
+	}
+
+	err = cp.verifySignature(signatureVerificationData{
+		ownerContainer:  *ownerContainer,
+		verb:            session.VerbContainerPut,
+		binTokenSession: ctx.e.SessionToken(),
+		binPublicKey:    ctx.e.PublicKey(),
+		signature:       ctx.e.Signature(),
+		signedData:      binCnr,
+	})
+	if err != nil {
+		return fmt.Errorf("auth container creation: %w", err)
+	}
+
 	// check owner allowance in the subnetwork
 	err = checkSubnet(cp.subnetClient, cnr)
 	if err != nil {
@@ -103,25 +102,7 @@ func (cp *Processor) checkPutContainer(ctx *putContainerContext) error {
 		return fmt.Errorf("incorrect container format: %w", err)
 	}
 
-	// unmarshal session token if presented
-	tok, err := tokenFromEvent(e)
-	if err != nil {
-		return err
-	}
-
-	if tok != nil {
-		// check token context
-		err = checkTokenContext(tok, func(c *session.ContainerContext) bool {
-			return c.IsForPut()
-		})
-		if err != nil {
-			return err
-		}
-	}
-
-	cnr.SetSessionToken(tok)
-
-	return cp.checkKeyOwnership(cnr, key)
+	return nil
 }
 
 func (cp *Processor) approvePutContainer(ctx *putContainerContext) {
@@ -175,70 +156,38 @@ func (cp *Processor) processContainerDelete(delete *containerEvent.Delete) {
 func (cp *Processor) checkDeleteContainer(e *containerEvent.Delete) error {
 	binCID := e.ContainerID()
 
+	var idCnr cid.ID
+
+	err := idCnr.Decode(binCID)
+	if err != nil {
+		return fmt.Errorf("invalid container ID: %w", err)
+	}
+
 	// receive owner of the related container
 	cnr, err := cp.cnrClient.Get(binCID)
 	if err != nil {
 		return fmt.Errorf("could not receive the container: %w", err)
 	}
 
-	token, err := tokenFromEvent(e)
-	if err != nil {
-		return err
+	ownerContainer := cnr.OwnerID()
+	if ownerContainer == nil {
+		return errors.New("missing container owner")
 	}
 
-	var checkKeys keys.PublicKeys
-
-	if token != nil {
-		// check token context
-		// TODO: #1147 think how to avoid version casts
-		var id cid.ID
-
-		err = id.Decode(binCID)
-		if err != nil {
-			return fmt.Errorf("decode container ID: %w", err)
-		}
-
-		err = checkTokenContextWithCID(token, id, func(c *session.ContainerContext) bool {
-			return c.IsForDelete()
+	err = cp.verifySignature(signatureVerificationData{
+		ownerContainer:  *ownerContainer,
+		verb:            session.VerbContainerDelete,
+		idContainerSet:  true,
+		idContainer:     idCnr,
+		binTokenSession: e.SessionToken(),
+		signature:       e.Signature(),
+		signedData:      binCID,
 	})
 	if err != nil {
-			return err
+		return fmt.Errorf("auth container creation: %w", err)
 	}
 
-		key, err := keys.NewPublicKeyFromBytes(token.SessionKey(), elliptic.P256())
-		if err != nil {
-			return fmt.Errorf("invalid session key: %w", err)
-		}
-
-		// check token ownership
-		err = cp.checkKeyOwnershipWithToken(cnr, key, token)
-		if err != nil {
-			return err
-		}
-
-		checkKeys = keys.PublicKeys{key}
-	} else {
-		prm := neofsid.AccountKeysPrm{}
-		prm.SetID(cnr.OwnerID())
-
-		// receive all owner keys from NeoFS ID contract
-		checkKeys, err = cp.idClient.AccountKeys(prm)
-		if err != nil {
-			return fmt.Errorf("could not received owner keys %s: %w", cnr.OwnerID(), err)
-		}
-	}
-
-	// verify signature
-	cidHash := sha256.Sum256(binCID)
-	sig := e.Signature()
-
-	for _, key := range checkKeys {
-		if key.Verify(sig, cidHash[:]) {
 	return nil
-		}
-	}
-
-	return errors.New("signature verification failed on all owner keys ")
 }
 
 func (cp *Processor) approveDeleteContainer(e *containerEvent.Delete) {

pkg/innerring/processors/container/process_eacl.go

@@ -1,12 +1,9 @@
 package container
 
 import (
-	"crypto/elliptic"
-	"crypto/sha256"
 	"errors"
 	"fmt"
 
-	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	cntClient "github.com/nspcc-dev/neofs-node/pkg/morph/client/container"
 	"github.com/nspcc-dev/neofs-node/pkg/morph/event/container"
 	"github.com/nspcc-dev/neofs-sdk-go/eacl"
@@ -33,25 +30,12 @@ func (cp *Processor) processSetEACL(e container.SetEACL) {
 }
 
 func (cp *Processor) checkSetEACL(e container.SetEACL) error {
-	// verify signature
-	key, err := keys.NewPublicKeyFromBytes(e.PublicKey(), elliptic.P256())
-	if err != nil {
-		return fmt.Errorf("invalid key: %w", err)
-	}
-
 	binTable := e.Table()
-	tableHash := sha256.Sum256(binTable)
-
-	if !key.Verify(e.Signature(), tableHash[:]) {
-		return errors.New("invalid signature")
-	}
-
-	// verify the identity of the container owner
 
 	// unmarshal table
 	table := eacl.NewTable()
 
-	err = table.Unmarshal(binTable)
+	err := table.Unmarshal(binTable)
 	if err != nil {
 		return fmt.Errorf("invalid binary table: %w", err)
 	}
@@ -67,30 +51,26 @@ func (cp *Processor) checkSetEACL(e container.SetEACL) error {
 		return fmt.Errorf("could not receive the container: %w", err)
 	}
 
-	// unmarshal session token if presented
-	tok, err := tokenFromEvent(e)
-	if err != nil {
-		return err
+	ownerContainer := cnr.OwnerID()
+	if ownerContainer == nil {
+		return errors.New("missing container owner")
 	}
 
-	if tok != nil {
-		// check token context
-		err = checkTokenContextWithCID(tok, idCnr, func(c *session.ContainerContext) bool {
-			return c.IsForSetEACL()
+	err = cp.verifySignature(signatureVerificationData{
+		ownerContainer:  *ownerContainer,
+		verb:            session.VerbContainerSetEACL,
+		idContainerSet:  true,
+		idContainer:     idCnr,
+		binTokenSession: e.SessionToken(),
+		binPublicKey:    e.PublicKey(),
+		signature:       e.Signature(),
+		signedData:      binTable,
 	})
 	if err != nil {
-			return err
-		}
+		return fmt.Errorf("auth eACL table setting: %w", err)
 	}
 
-	// statement below is a little hack, but if we write a token from an event to the container,
-	// checkKeyOwnership method will work just as it should:
-	//  * tok == nil => we will check if key is a container owner's key
-	//  * tok != nil => we will check if token was signed correctly (context is checked at the statement above)
-	cnr.SetSessionToken(tok)
-
-	// check key ownership
-	return cp.checkKeyOwnership(cnr, key)
+	return nil
 }
 
 func (cp *Processor) approveSetEACL(e container.SetEACL) {

pkg/morph/client/container/delete.go

@@ -18,20 +18,19 @@ func Delete(c *Client, witness core.RemovalWitness) error {
 		return errNilArgument
 	}
 
-	binToken, err := witness.SessionToken().Marshal()
-	if err != nil {
-		return fmt.Errorf("could not marshal session token: %w", err)
-	}
-
 	binCnr := make([]byte, sha256.Size)
 	id.Encode(binCnr)
 
-	return c.Delete(
-		DeletePrm{
-			cid:       binCnr,
-			signature: witness.Signature(),
-			token:     binToken,
-		})
+	var prm DeletePrm
+
+	prm.SetCID(binCnr)
+	prm.SetSignature(witness.Signature())
+
+	if tok := witness.SessionToken(); tok != nil {
+		prm.SetToken(tok.Marshal())
+	}
+
+	return c.Delete(prm)
 }
 
 // DeletePrm groups parameters of Delete client operation.

pkg/morph/client/container/eacl.go

@@ -77,14 +77,14 @@ func (c *Client) GetEACL(cnr *cid.ID) (*eacl.Table, error) {
 	}
 
 	if len(binToken) > 0 {
-		tok := session.NewToken()
+		var tok session.Container
 
 		err = tok.Unmarshal(binToken)
 		if err != nil {
 			return nil, fmt.Errorf("could not unmarshal session token: %w", err)
 		}
 
-		table.SetSessionToken(tok)
+		table.SetSessionToken(&tok)
 	}
 
 	// FIXME(@cthulhu-rider): #1387 temp solution, later table structure won't have a signature

pkg/morph/client/container/eacl_set.go

@@ -24,14 +24,12 @@ func PutEACL(c *Client, table *eacl.Table) error {
 		return fmt.Errorf("can't marshal eacl table: %w", err)
 	}
 
-	binToken, err := table.SessionToken().Marshal()
-	if err != nil {
-		return fmt.Errorf("could not marshal session token: %w", err)
-	}
-
 	var prm PutEACLPrm
 	prm.SetTable(data)
-	prm.SetToken(binToken)
+
+	if tok := table.SessionToken(); tok != nil {
+		prm.SetToken(tok.Marshal())
+	}
 
 	if sig := table.Signature(); sig != nil {
 		// TODO(@cthulhu-rider): #1387 implement and use another approach to avoid conversion

pkg/morph/client/container/get.go

@@ -96,14 +96,14 @@ func (c *Client) Get(cid []byte) (*container.Container, error) {
 	}
 
 	if len(tokBytes) > 0 {
-		tok := session.NewToken()
+		var tok session.Container
 
 		err = tok.Unmarshal(tokBytes)
 		if err != nil {
 			return nil, fmt.Errorf("could not unmarshal session token: %w", err)
 		}
 
-		cnr.SetSessionToken(tok)
+		cnr.SetSessionToken(&tok)
 	}
 
 	// FIXME(@cthulhu-rider): #1387 temp solution, later table structure won't have a signature

pkg/morph/client/container/put.go

@@ -24,19 +24,17 @@ func Put(c *Client, cnr *container.Container) (*cid.ID, error) {
 		return nil, fmt.Errorf("can't marshal container: %w", err)
 	}
 
-	binToken, err := cnr.SessionToken().Marshal()
-	if err != nil {
-		return nil, fmt.Errorf("could not marshal session token: %w", err)
-	}
-
 	name, zone := container.GetNativeNameWithZone(cnr)
 
 	var prm PutPrm
 	prm.SetContainer(data)
-	prm.SetToken(binToken)
 	prm.SetName(name)
 	prm.SetZone(zone)
 
+	if tok := cnr.SessionToken(); tok != nil {
+		prm.SetToken(tok.Marshal())
+	}
+
 	if sig := cnr.Signature(); sig != nil {
 		// TODO(@cthulhu-rider): #1387 implement and use another approach to avoid conversion
 		var sigV2 refs.Signature

pkg/services/container/morph/executor.go

@@ -7,6 +7,7 @@ import (
 
 	"github.com/nspcc-dev/neofs-api-go/v2/container"
 	"github.com/nspcc-dev/neofs-api-go/v2/refs"
+	sessionV2 "github.com/nspcc-dev/neofs-api-go/v2/session"
 	containercore "github.com/nspcc-dev/neofs-node/pkg/core/container"
 	containerSvc "github.com/nspcc-dev/neofs-node/pkg/services/container"
 	"github.com/nspcc-dev/neofs-node/pkg/services/object/acl/eacl"
@@ -44,10 +45,6 @@ type Writer interface {
 	PutEACL(*eaclSDK.Table) error
 }
 
-// ErrInvalidContext is thrown by morph ServiceExecutor when provided session
-// token does not contain expected container context.
-var ErrInvalidContext = errors.New("session token does not contain container context")
-
 func NewExecutor(rdr Reader, wrt Writer) containerSvc.ServiceExecutor {
 	return &morphExecutor{
 		rdr: rdr,
@@ -69,12 +66,16 @@ func (s *morphExecutor) Put(ctx containerSvc.ContextWithToken, body *container.P
 
 	cnr.SetSignature(&sig)
 
-	tok := session.NewTokenFromV2(ctx.SessionToken)
-	if ctx.SessionToken != nil && session.GetContainerContext(tok) == nil {
-		return nil, ErrInvalidContext
+	if ctx.SessionToken != nil {
+		var tok session.Container
+
+		err := tok.ReadFromV2(*ctx.SessionToken)
+		if err != nil {
+			return nil, fmt.Errorf("invalid session token: %w", err)
 		}
 
-	cnr.SetSessionToken(tok)
+		cnr.SetSessionToken(&tok)
+	}
 
 	idCnr, err := s.wrt.Put(cnr)
 	if err != nil {
@@ -105,9 +106,15 @@ func (s *morphExecutor) Delete(ctx containerSvc.ContextWithToken, body *containe
 
 	sig := body.GetSignature().GetSign()
 
-	tok := session.NewTokenFromV2(ctx.SessionToken)
-	if ctx.SessionToken != nil && session.GetContainerContext(tok) == nil {
-		return nil, ErrInvalidContext
+	var tok *session.Container
+
+	if ctx.SessionToken != nil {
+		tok = new(session.Container)
+
+		err := tok.ReadFromV2(*ctx.SessionToken)
+		if err != nil {
+			return nil, fmt.Errorf("invalid session token: %w", err)
+		}
 	}
 
 	var rmWitness containercore.RemovalWitness
@@ -149,10 +156,18 @@ func (s *morphExecutor) Get(ctx context.Context, body *container.GetRequestBody)
 		sig.WriteToV2(sigV2)
 	}
 
+	var tokV2 *sessionV2.Token
+
+	if tok := cnr.SessionToken(); tok != nil {
+		tokV2 = new(sessionV2.Token)
+
+		tok.WriteToV2(tokV2)
+	}
+
 	res := new(container.GetResponseBody)
 	res.SetContainer(cnr.ToV2())
 	res.SetSignature(sigV2)
-	res.SetSessionToken(cnr.SessionToken().ToV2())
+	res.SetSessionToken(tokV2)
 
 	return res, nil
 }
@@ -200,12 +215,16 @@ func (s *morphExecutor) SetExtendedACL(ctx containerSvc.ContextWithToken, body *
 
 	table.SetSignature(&sig)
 
-	tok := session.NewTokenFromV2(ctx.SessionToken)
-	if ctx.SessionToken != nil && session.GetContainerContext(tok) == nil {
-		return nil, ErrInvalidContext
+	if ctx.SessionToken != nil {
+		var tok session.Container
+
+		err := tok.ReadFromV2(*ctx.SessionToken)
+		if err != nil {
+			return nil, fmt.Errorf("invalid session token: %w", err)
 		}
 
-	table.SetSessionToken(tok)
+		table.SetSessionToken(&tok)
+	}
 
 	err := s.wrt.PutEACL(table)
 	if err != nil {
@@ -240,10 +259,18 @@ func (s *morphExecutor) GetExtendedACL(ctx context.Context, body *container.GetE
 		sig.WriteToV2(sigV2)
 	}
 
+	var tokV2 *sessionV2.Token
+
+	if tok := table.SessionToken(); tok != nil {
+		tokV2 = new(sessionV2.Token)
+
+		tok.WriteToV2(tokV2)
+	}
+
 	res := new(container.GetExtendedACLResponseBody)
 	res.SetEACL(table.ToV2())
 	res.SetSignature(sigV2)
-	res.SetSessionToken(table.SessionToken().ToV2())
+	res.SetSessionToken(tokV2)
 
 	return res, nil
 }

pkg/services/container/morph/executor_test.go

@@ -14,6 +14,7 @@ import (
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	cidtest "github.com/nspcc-dev/neofs-sdk-go/container/id/test"
 	"github.com/nspcc-dev/neofs-sdk-go/eacl"
+	sessiontest "github.com/nspcc-dev/neofs-sdk-go/session/test"
 	"github.com/stretchr/testify/require"
 )
 
@@ -42,6 +43,9 @@ func TestInvalidToken(t *testing.T) {
 	var cnrV2 refs.ContainerID
 	cnr.WriteToV2(&cnrV2)
 
+	var tokV2 session.Token
+	sessiontest.ContainerSigned().WriteToV2(&tokV2)
+
 	tests := []struct {
 		name string
 		op   func(e containerSvc.ServiceExecutor, ctx containerSvc.ContextWithToken) error
@@ -84,9 +88,9 @@ func TestInvalidToken(t *testing.T) {
 				Context:      context.Background(),
 				SessionToken: generateToken(new(session.ObjectSessionContext)),
 			}
-			require.Error(t, test.op(e, ctx), containerSvcMorph.ErrInvalidContext)
+			require.Error(t, test.op(e, ctx))
 
-			ctx.SessionToken = generateToken(new(session.ContainerSessionContext))
+			ctx.SessionToken = &tokV2
 			require.NoError(t, test.op(e, ctx))
 
 			ctx.SessionToken = nil

pkg/services/object/acl/eacl/v2/headers.go

@@ -84,6 +84,16 @@ func (h headerSource) HeadersOfType(typ eaclSDK.FilterHeaderType) ([]eaclSDK.Hea
 	}
 }
 
+type xHeader session.XHeader
+
+func (x xHeader) Key() string {
+	return (*session.XHeader)(&x).GetKey()
+}
+
+func (x xHeader) Value() string {
+	return (*session.XHeader)(&x).GetValue()
+}
+
 func requestHeaders(msg xHeaderSource) []eaclSDK.Header {
 	return msg.GetXHeaders()
 }

pkg/services/object/acl/eacl/v2/xheader.go

@@ -1,8 +1,8 @@
 package v2
 
 import (
+	"github.com/nspcc-dev/neofs-api-go/v2/session"
 	eaclSDK "github.com/nspcc-dev/neofs-sdk-go/eacl"
-	sessionSDK "github.com/nspcc-dev/neofs-sdk-go/session"
 )
 
 type xHeaderSource interface {
@@ -30,7 +30,7 @@ func (s requestXHeaderSource) GetXHeaders() []eaclSDK.Header {
 	for meta := s.req.GetMetaHeader(); meta != nil; meta = meta.GetOrigin() {
 		x := meta.GetXHeaders()
 		for i := range x {
-			res = append(res, sessionSDK.NewXHeaderFromV2(&x[i]))
+			res = append(res, (xHeader)(x[i]))
 		}
 	}
 
@@ -39,16 +39,21 @@ func (s requestXHeaderSource) GetXHeaders() []eaclSDK.Header {
 
 func (s responseXHeaderSource) GetXHeaders() []eaclSDK.Header {
 	ln := 0
+	xHdrs := make([][]session.XHeader, 0)
 
 	for meta := s.req.GetMetaHeader(); meta != nil; meta = meta.GetOrigin() {
-		ln += len(meta.GetXHeaders())
+		x := meta.GetXHeaders()
+
+		ln += len(x)
+
+		xHdrs = append(xHdrs, x)
 	}
 
 	res := make([]eaclSDK.Header, 0, ln)
-	for meta := s.req.GetMetaHeader(); meta != nil; meta = meta.GetOrigin() {
-		x := meta.GetXHeaders()
-		for i := range x {
-			res = append(res, sessionSDK.NewXHeaderFromV2(&x[i]))
+
+	for i := range xHdrs {
+		for j := range xHdrs[i] {
+			res = append(res, xHeader(xHdrs[i][j]))
 		}
 	}
 

pkg/services/object/acl/v2/request.go

@@ -107,7 +107,7 @@ func (r RequestInfo) RequestRole() eaclSDK.Role {
 // verification header and raw API request.
 type MetaWithToken struct {
 	vheader *sessionV2.RequestVerificationHeader
-	token   *sessionSDK.Token
+	token   *sessionSDK.Object
 	bearer  *bearer.Token
 	src     interface{}
 }

pkg/services/object/acl/v2/service.go

@@ -113,7 +113,10 @@ func (b Service) Get(request *objectV2.GetRequest, stream object.GetObjectStream
 		return err
 	}
 
-	sTok := originalSessionToken(request.GetMetaHeader())
+	sTok, err := originalSessionToken(request.GetMetaHeader())
+	if err != nil {
+		return err
+	}
 
 	req := MetaWithToken{
 		vheader: request.GetVerificationHeader(),
@@ -164,7 +167,10 @@ func (b Service) Head(
 		return nil, err
 	}
 
-	sTok := originalSessionToken(request.GetMetaHeader())
+	sTok, err := originalSessionToken(request.GetMetaHeader())
+	if err != nil {
+		return nil, err
+	}
 
 	req := MetaWithToken{
 		vheader: request.GetVerificationHeader(),
@@ -207,9 +213,14 @@ func (b Service) Search(request *objectV2.SearchRequest, stream object.SearchStr
 		return err
 	}
 
+	sTok, err := originalSessionToken(request.GetMetaHeader())
+	if err != nil {
+		return err
+	}
+
 	req := MetaWithToken{
 		vheader: request.GetVerificationHeader(),
-		token:   originalSessionToken(request.GetMetaHeader()),
+		token:   sTok,
 		bearer:  originalBearerToken(request.GetMetaHeader()),
 		src:     request,
 	}
@@ -245,7 +256,10 @@ func (b Service) Delete(
 		return nil, err
 	}
 
-	sTok := originalSessionToken(request.GetMetaHeader())
+	sTok, err := originalSessionToken(request.GetMetaHeader())
+	if err != nil {
+		return nil, err
+	}
 
 	req := MetaWithToken{
 		vheader: request.GetVerificationHeader(),
@@ -281,7 +295,10 @@ func (b Service) GetRange(request *objectV2.GetRangeRequest, stream object.GetOb
 		return err
 	}
 
-	sTok := originalSessionToken(request.GetMetaHeader())
+	sTok, err := originalSessionToken(request.GetMetaHeader())
+	if err != nil {
+		return err
+	}
 
 	req := MetaWithToken{
 		vheader: request.GetVerificationHeader(),
@@ -322,7 +339,10 @@ func (b Service) GetRangeHash(
 		return nil, err
 	}
 
-	sTok := originalSessionToken(request.GetMetaHeader())
+	sTok, err := originalSessionToken(request.GetMetaHeader())
+	if err != nil {
+		return nil, err
+	}
 
 	req := MetaWithToken{
 		vheader: request.GetVerificationHeader(),
@@ -377,7 +397,16 @@ func (p putStreamBasicChecker) Send(request *objectV2.PutRequest) error {
 			return fmt.Errorf("invalid object owner: %w", err)
 		}
 
-		sTok := sessionSDK.NewTokenFromV2(request.GetMetaHeader().GetSessionToken())
+		var sTok *sessionSDK.Object
+
+		if tokV2 := request.GetMetaHeader().GetSessionToken(); tokV2 != nil {
+			sTok = new(sessionSDK.Object)
+
+			err = sTok.ReadFromV2(*tokV2)
+			if err != nil {
+				return fmt.Errorf("invalid session token: %w", err)
+			}
+		}
 
 		req := MetaWithToken{
 			vheader: request.GetVerificationHeader(),
@@ -449,14 +478,18 @@ func (b Service) findRequestInfo(
 		return info, errors.New("missing owner in container descriptor")
 	}
 
-	if req.token != nil && req.token.Exp() != 0 {
+	if req.token != nil {
 		currentEpoch, err := b.nm.Epoch()
 		if err != nil {
 			return info, errors.New("can't fetch current epoch")
 		}
-		if req.token.Exp() < currentEpoch {
-			return info, fmt.Errorf("%w: token has expired (current epoch: %d, expired at %d)",
-				ErrMalformedRequest, currentEpoch, req.token.Exp())
+		if req.token.ExpiredAt(currentEpoch) {
+			return info, fmt.Errorf("%w: token has expired (current epoch: %d)",
+				ErrMalformedRequest, currentEpoch)
+		}
+
+		if !assertVerb(*req.token, op) {
+			return info, ErrInvalidVerb
 		}
 	}
 
@@ -470,16 +503,10 @@ func (b Service) findRequestInfo(
 		return info, ErrUnknownRole
 	}
 
-	// find verb from token if it is present
-	verb, isUnknown := sourceVerbOfRequest(req.token, op)
-	if !isUnknown && verb != op && !isVerbCompatible(verb, op) {
-		return info, ErrInvalidVerb
-	}
-
 	info.basicACL = cnr.BasicACL()
 	info.requestRole = res.role
 	info.isInnerRing = res.isIR
-	info.operation = verb
+	info.operation = op
 	info.cnrOwner = cnr.OwnerID()
 	info.idCnr = cid
 

pkg/services/object/acl/v2/util.go

@@ -75,12 +75,24 @@ func originalBearerToken(header *sessionV2.RequestMetaHeader) *bearer.Token {
 
 // originalSessionToken goes down to original request meta header and fetches
 // session token from there.
-func originalSessionToken(header *sessionV2.RequestMetaHeader) *sessionSDK.Token {
+func originalSessionToken(header *sessionV2.RequestMetaHeader) (*sessionSDK.Object, error) {
 	for header.GetOrigin() != nil {
 		header = header.GetOrigin()
 	}
 
-	return sessionSDK.NewTokenFromV2(header.GetSessionToken())
+	tokV2 := header.GetSessionToken()
+	if tokV2 == nil {
+		return nil, nil
+	}
+
+	var tok sessionSDK.Object
+
+	err := tok.ReadFromV2(*tokV2)
+	if err != nil {
+		return nil, fmt.Errorf("invalid session token: %w", err)
+	}
+
+	return &tok, nil
 }
 
 func getObjectIDFromRequestBody(body interface{}) (*oidSDK.ID, error) {
@@ -113,58 +125,35 @@ func getObjectIDFromRequestBody(body interface{}) (*oidSDK.ID, error) {
 	return &id, nil
 }
 
-// sourceVerbOfRequest looks for verb in session token and if it is not found,
-// returns reqVerb. Second return value is true if operation is unknown.
-func sourceVerbOfRequest(tok *sessionSDK.Token, reqVerb eaclSDK.Operation) (eaclSDK.Operation, bool) {
-	ctx, ok := tok.Context().(*sessionSDK.ObjectContext)
-	if ok {
-		op := tokenVerbToOperation(ctx)
-		if op != eaclSDK.OperationUnknown {
-			return op, false
-		}
-	}
-
-	return reqVerb, true
-}
-
-func useObjectIDFromSession(req *RequestInfo, token *sessionSDK.Token) {
+func useObjectIDFromSession(req *RequestInfo, token *sessionSDK.Object) {
 	if token == nil {
 		return
 	}
 
-	objCtx, ok := token.Context().(*sessionSDK.ObjectContext)
+	// TODO(@cthulhu-rider): It'd be nice to not pull object identifiers from
+	//  the token, but assert them. Track #1420
+	var tokV2 sessionV2.Token
+	token.WriteToV2(&tokV2)
+
+	ctx, ok := tokV2.GetBody().GetContext().(*sessionV2.ObjectSessionContext)
 	if !ok {
+		panic(fmt.Sprintf("wrong object session context %T, is it verified?", tokV2.GetBody().GetContext()))
+	}
+
+	idV2 := ctx.GetAddress().GetObjectID()
+	if idV2 == nil {
 		return
 	}
 
-	id, ok := objCtx.Address().ObjectID()
-	if ok {
-		req.oid = &id
+	req.oid = new(oidSDK.ID)
+
+	err := req.oid.ReadFromV2(*idV2)
+	if err != nil {
+		panic(fmt.Sprintf("unexpected protocol violation error after correct session token decoding: %v", err))
 	}
 }
 
-func tokenVerbToOperation(ctx *sessionSDK.ObjectContext) eaclSDK.Operation {
-	switch {
-	case ctx.IsForGet():
-		return eaclSDK.OperationGet
-	case ctx.IsForPut():
-		return eaclSDK.OperationPut
-	case ctx.IsForHead():
-		return eaclSDK.OperationHead
-	case ctx.IsForSearch():
-		return eaclSDK.OperationSearch
-	case ctx.IsForDelete():
-		return eaclSDK.OperationDelete
-	case ctx.IsForRange():
-		return eaclSDK.OperationRange
-	case ctx.IsForRangeHash():
-		return eaclSDK.OperationRangeHash
-	default:
-		return eaclSDK.OperationUnknown
-	}
-}
-
-func ownerFromToken(token *sessionSDK.Token) (*user.ID, *keys.PublicKey, error) {
+func ownerFromToken(token *sessionSDK.Object) (*user.ID, *keys.PublicKey, error) {
 	// 1. First check signature of session token.
 	if !token.VerifySignature() {
 		return nil, nil, fmt.Errorf("%w: invalid session token signature", ErrMalformedRequest)
@@ -172,21 +161,32 @@ func ownerFromToken(token *sessionSDK.Token) (*user.ID, *keys.PublicKey, error)
 
 	// 2. Then check if session token owner issued the session token
 	// TODO(@cthulhu-rider): #1387 implement and use another approach to avoid conversion
-	tokV2 := token.ToV2()
+	var tokV2 sessionV2.Token
+	token.WriteToV2(&tokV2)
+
+	ownerSessionV2 := tokV2.GetBody().GetOwnerID()
+	if ownerSessionV2 == nil {
+		return nil, nil, errors.New("missing session owner")
+	}
+
+	var ownerSession user.ID
+
+	err := ownerSession.ReadFromV2(*ownerSessionV2)
+	if err != nil {
+		return nil, nil, fmt.Errorf("invalid session token: %w", err)
+	}
 
 	tokenIssuerKey, err := unmarshalPublicKey(tokV2.GetSignature().GetKey())
 	if err != nil {
 		return nil, nil, fmt.Errorf("invalid key in session token signature: %w", err)
 	}
 
-	tokenOwner := token.OwnerID()
-
-	if !isOwnerFromKey(tokenOwner, tokenIssuerKey) {
+	if !isOwnerFromKey(&ownerSession, tokenIssuerKey) {
 		// TODO: #767 in this case we can issue all owner keys from neofs.id and check once again
 		return nil, nil, fmt.Errorf("%w: invalid session token owner", ErrMalformedRequest)
 	}
 
-	return tokenOwner, tokenIssuerKey, nil
+	return &ownerSession, tokenIssuerKey, nil
 }
 
 func originalBodySignature(v *sessionV2.RequestVerificationHeader) *refsV2.Signature {
@@ -216,17 +216,30 @@ func isOwnerFromKey(id *user.ID, key *keys.PublicKey) bool {
 	return id2.Equals(*id)
 }
 
-// isVerbCompatible checks that tokenVerb operation can create auxiliary op operation.
-func isVerbCompatible(tokenVerb, op eaclSDK.Operation) bool {
-	switch tokenVerb {
-	case eaclSDK.OperationGet:
-		return op == eaclSDK.OperationGet || op == eaclSDK.OperationHead
+// assertVerb checks that token verb corresponds to op.
+func assertVerb(tok sessionSDK.Object, op eaclSDK.Operation) bool {
+	//nolint:exhaustive
+	switch op {
+	case eaclSDK.OperationPut:
+		return tok.AssertVerb(sessionSDK.VerbObjectPut, sessionSDK.VerbObjectDelete)
 	case eaclSDK.OperationDelete:
-		return op == eaclSDK.OperationPut || op == eaclSDK.OperationHead ||
-			op == eaclSDK.OperationSearch
-	case eaclSDK.OperationRange, eaclSDK.OperationRangeHash:
-		return op == eaclSDK.OperationRange || op == eaclSDK.OperationHead
-	default:
-		return tokenVerb == op
+		return tok.AssertVerb(sessionSDK.VerbObjectDelete)
+	case eaclSDK.OperationGet:
+		return tok.AssertVerb(sessionSDK.VerbObjectGet)
+	case eaclSDK.OperationHead:
+		return tok.AssertVerb(
+			sessionSDK.VerbObjectHead,
+			sessionSDK.VerbObjectGet,
+			sessionSDK.VerbObjectDelete,
+			sessionSDK.VerbObjectRange,
+			sessionSDK.VerbObjectRangeHash)
+	case eaclSDK.OperationSearch:
+		return tok.AssertVerb(sessionSDK.VerbObjectSearch, sessionSDK.VerbObjectDelete)
+	case eaclSDK.OperationRange:
+		return tok.AssertVerb(sessionSDK.VerbObjectRange, sessionSDK.VerbObjectRangeHash)
+	case eaclSDK.OperationRangeHash:
+		return tok.AssertVerb(sessionSDK.VerbObjectRangeHash)
 	}
+
+	return false
 }

pkg/services/object/acl/v2/util_test.go

@@ -6,23 +6,28 @@ import (
 	"github.com/nspcc-dev/neofs-api-go/v2/acl"
 	acltest "github.com/nspcc-dev/neofs-api-go/v2/acl/test"
 	"github.com/nspcc-dev/neofs-api-go/v2/session"
-	sessiontest "github.com/nspcc-dev/neofs-api-go/v2/session/test"
 	"github.com/nspcc-dev/neofs-sdk-go/bearer"
 	"github.com/nspcc-dev/neofs-sdk-go/eacl"
 	sessionSDK "github.com/nspcc-dev/neofs-sdk-go/session"
+	sessiontest "github.com/nspcc-dev/neofs-sdk-go/session/test"
 	"github.com/stretchr/testify/require"
 )
 
 func TestOriginalTokens(t *testing.T) {
-	sToken := sessiontest.GenerateSessionToken(false)
+	sToken := sessiontest.ObjectSigned()
 	bTokenV2 := acltest.GenerateBearerToken(false)
 
 	var bToken bearer.Token
 	bToken.ReadFromV2(*bTokenV2)
 
+	var sTokenV2 session.Token
+	sToken.WriteToV2(&sTokenV2)
+
 	for i := 0; i < 10; i++ {
-		metaHeaders := testGenerateMetaHeader(uint32(i), bTokenV2, sToken)
-		require.Equal(t, sessionSDK.NewTokenFromV2(sToken), originalSessionToken(metaHeaders), i)
+		metaHeaders := testGenerateMetaHeader(uint32(i), bTokenV2, &sTokenV2)
+		res, err := originalSessionToken(metaHeaders)
+		require.NoError(t, err)
+		require.Equal(t, sToken, res, i)
 		require.Equal(t, &bToken, originalBearerToken(metaHeaders), i)
 	}
 }
@@ -43,38 +48,48 @@ func testGenerateMetaHeader(depth uint32, b *acl.BearerToken, s *session.Token)
 
 func TestIsVerbCompatible(t *testing.T) {
 	// Source: https://nspcc.ru/upload/neofs-spec-latest.pdf#page=28
-	table := map[eacl.Operation][]eacl.Operation{
-		eacl.OperationPut:       {eacl.OperationPut},
-		eacl.OperationDelete:    {eacl.OperationPut, eacl.OperationHead, eacl.OperationSearch},
-		eacl.OperationHead:      {eacl.OperationHead},
-		eacl.OperationRange:     {eacl.OperationRange, eacl.OperationHead},
-		eacl.OperationRangeHash: {eacl.OperationRange, eacl.OperationHead},
-		eacl.OperationGet:       {eacl.OperationGet, eacl.OperationHead},
-		eacl.OperationSearch:    {eacl.OperationSearch},
+	table := map[eacl.Operation][]sessionSDK.ObjectVerb{
+		eacl.OperationPut:    {sessionSDK.VerbObjectPut, sessionSDK.VerbObjectDelete},
+		eacl.OperationDelete: {sessionSDK.VerbObjectDelete},
+		eacl.OperationGet:    {sessionSDK.VerbObjectGet},
+		eacl.OperationHead: {
+			sessionSDK.VerbObjectHead,
+			sessionSDK.VerbObjectGet,
+			sessionSDK.VerbObjectDelete,
+			sessionSDK.VerbObjectRange,
+			sessionSDK.VerbObjectRangeHash,
+		},
+		eacl.OperationRange:     {sessionSDK.VerbObjectRange, sessionSDK.VerbObjectRangeHash},
+		eacl.OperationRangeHash: {sessionSDK.VerbObjectRangeHash},
+		eacl.OperationSearch:    {sessionSDK.VerbObjectSearch, sessionSDK.VerbObjectDelete},
 	}
 
-	ops := []eacl.Operation{
-		eacl.OperationPut,
-		eacl.OperationDelete,
-		eacl.OperationHead,
-		eacl.OperationRange,
-		eacl.OperationRangeHash,
-		eacl.OperationGet,
-		eacl.OperationSearch,
+	verbs := []sessionSDK.ObjectVerb{
+		sessionSDK.VerbObjectPut,
+		sessionSDK.VerbObjectDelete,
+		sessionSDK.VerbObjectHead,
+		sessionSDK.VerbObjectRange,
+		sessionSDK.VerbObjectRangeHash,
+		sessionSDK.VerbObjectGet,
+		sessionSDK.VerbObjectSearch,
 	}
 
-	for _, opToken := range ops {
-		for _, op := range ops {
+	var tok sessionSDK.Object
+
+	for op, list := range table {
+		for _, verb := range verbs {
 			var contains bool
-			for _, o := range table[opToken] {
-				if o == op {
+			for _, v := range list {
+				if v == verb {
 					contains = true
 					break
 				}
 			}
 
-			require.Equal(t, contains, isVerbCompatible(opToken, op),
-				"%s in token, %s executing", opToken, op)
+			tok.ForVerb(verb)
+
+			require.Equal(t, contains, assertVerb(tok, op),
+				"%v in token, %s executing", verb, op)
 		}
 	}
 }

pkg/services/object/delete/exec.go

@@ -243,15 +243,15 @@ func (exec *execCtx) initTombstoneObject() bool {
 		return false
 	}
 
-	tombOwnerID := exec.commonParameters().SessionToken().OwnerID()
-	if tombOwnerID == nil {
+	tombOwnerID, ok := exec.commonParameters().SessionOwner()
+	if !ok {
 		// make local node a tombstone object owner
-		tombOwnerID = exec.svc.netInfo.LocalNodeID()
+		tombOwnerID = *exec.svc.netInfo.LocalNodeID()
 	}
 
 	exec.tombstoneObj = object.New()
 	exec.tombstoneObj.SetContainerID(*exec.containerID())
-	exec.tombstoneObj.SetOwnerID(tombOwnerID)
+	exec.tombstoneObj.SetOwnerID(&tombOwnerID)
 	exec.tombstoneObj.SetType(object.TypeTombstone)
 	exec.tombstoneObj.SetPayload(payload)
 

pkg/services/object/get/exec.go

@@ -7,6 +7,7 @@ import (
 
 	clientcore "github.com/nspcc-dev/neofs-node/pkg/core/client"
 	"github.com/nspcc-dev/neofs-node/pkg/core/object"
+	"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
 	"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement"
 	"github.com/nspcc-dev/neofs-node/pkg/util/logger"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
@@ -105,7 +106,18 @@ func (exec execCtx) isChild(obj *objectSDK.Object) bool {
 }
 
 func (exec execCtx) key() (*ecdsa.PrivateKey, error) {
-	return exec.svc.keyStore.GetKey(exec.prm.common.SessionToken())
+	var sessionInfo *util.SessionInfo
+
+	if tok := exec.prm.common.SessionToken(); tok != nil {
+		ownerSession, _ := exec.prm.common.SessionOwner()
+
+		sessionInfo = &util.SessionInfo{
+			ID:    tok.ID(),
+			Owner: ownerSession,
+		}
+	}
+
+	return exec.svc.keyStore.GetKey(sessionInfo)
 }
 
 func (exec *execCtx) canAssemble() bool {

pkg/services/object/get/service.go

@@ -1,8 +1,6 @@
 package getsvc
 
 import (
-	"crypto/ecdsa"
-
 	"github.com/nspcc-dev/neofs-node/pkg/core/client"
 	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine"
@@ -11,7 +9,6 @@ import (
 	"github.com/nspcc-dev/neofs-node/pkg/util/logger"
 	"github.com/nspcc-dev/neofs-sdk-go/object"
 	addressSDK "github.com/nspcc-dev/neofs-sdk-go/object/address"
-	"github.com/nspcc-dev/neofs-sdk-go/session"
 	"go.uber.org/zap"
 )
 
@@ -48,9 +45,7 @@ type cfg struct {
 		currentEpoch() (uint64, error)
 	}
 
-	keyStore interface {
-		GetKey(token *session.Token) (*ecdsa.PrivateKey, error)
-	}
+	keyStore *util.KeyStorage
 }
 
 func defaultCfg() *cfg {

pkg/services/object/internal/client/client.go

@@ -25,13 +25,13 @@ type commonPrm struct {
 
 	key *ecdsa.PrivateKey
 
-	tokenSession *session.Token
+	tokenSession *session.Object
 
 	tokenBearer *bearer.Token
 
 	local bool
 
-	xHeaders []*session.XHeader
+	xHeaders []string
 }
 
 // SetClient sets base client for NeoFS API communication.
@@ -58,7 +58,7 @@ func (x *commonPrm) SetPrivateKey(key *ecdsa.PrivateKey) {
 // SetSessionToken sets token of the session within which request should be sent.
 //
 // By default the request will be sent outside the session.
-func (x *commonPrm) SetSessionToken(tok *session.Token) {
+func (x *commonPrm) SetSessionToken(tok *session.Object) {
 	x.tokenSession = tok
 }
 
@@ -77,23 +77,10 @@ func (x *commonPrm) SetTTL(ttl uint32) {
 // SetXHeaders sets request X-Headers.
 //
 // By default X-Headers will  not be attached to the request.
-func (x *commonPrm) SetXHeaders(hs []*session.XHeader) {
+func (x *commonPrm) SetXHeaders(hs []string) {
 	x.xHeaders = hs
 }
 
-func (x commonPrm) xHeadersPrm() (res []string) {
-	if len(x.xHeaders) > 0 {
-		res = make([]string, len(x.xHeaders)*2)
-
-		for i := range x.xHeaders {
-			res[2*i] = x.xHeaders[i].Key()
-			res[2*i+1] = x.xHeaders[i].Value()
-		}
-	}
-
-	return
-}
-
 type readPrmCommon struct {
 	commonPrm
 }
@@ -163,7 +150,7 @@ func GetObject(prm GetObjectPrm) (*GetObjectRes, error) {
 		prm.cliPrm.MarkLocal()
 	}
 
-	prm.cliPrm.WithXHeaders(prm.xHeadersPrm()...)
+	prm.cliPrm.WithXHeaders(prm.xHeaders...)
 
 	rdr, err := prm.cli.ObjectGetInit(prm.ctx, prm.cliPrm)
 	if err != nil {
@@ -258,7 +245,7 @@ func HeadObject(prm HeadObjectPrm) (*HeadObjectRes, error) {
 		prm.cliPrm.WithBearerToken(*prm.tokenBearer)
 	}
 
-	prm.cliPrm.WithXHeaders(prm.xHeadersPrm()...)
+	prm.cliPrm.WithXHeaders(prm.xHeaders...)
 
 	cliRes, err := prm.cli.ObjectHead(prm.ctx, prm.cliPrm)
 	if err == nil {
@@ -350,7 +337,7 @@ func PayloadRange(prm PayloadRangePrm) (*PayloadRangeRes, error) {
 	}
 
 	prm.cliPrm.SetLength(prm.ln)
-	prm.cliPrm.WithXHeaders(prm.xHeadersPrm()...)
+	prm.cliPrm.WithXHeaders(prm.xHeaders...)
 
 	rdr, err := prm.cli.ObjectRangeInit(prm.ctx, prm.cliPrm)
 	if err != nil {
@@ -420,7 +407,7 @@ func PutObject(prm PutObjectPrm) (*PutObjectRes, error) {
 		w.WithBearerToken(*prm.tokenBearer)
 	}
 
-	w.WithXHeaders(prm.xHeadersPrm()...)
+	w.WithXHeaders(prm.xHeaders...)
 
 	if w.WriteHeader(*prm.obj) {
 		w.WritePayloadChunk(prm.obj.Payload())
@@ -492,7 +479,7 @@ func SearchObjects(prm SearchObjectsPrm) (*SearchObjectsRes, error) {
 		prm.cliPrm.WithBearerToken(*prm.tokenBearer)
 	}
 
-	prm.cliPrm.WithXHeaders(prm.xHeadersPrm()...)
+	prm.cliPrm.WithXHeaders(prm.xHeaders...)
 
 	rdr, err := prm.cli.ObjectSearchInit(prm.ctx, prm.cliPrm)
 	if err != nil {

pkg/services/object/put/remote.go

@@ -48,7 +48,18 @@ func (t *remoteTarget) WriteHeader(obj *object.Object) error {
 }
 
 func (t *remoteTarget) Close() (*transformer.AccessIdentifiers, error) {
-	key, err := t.keyStorage.GetKey(t.commonPrm.SessionToken())
+	var sessionInfo *util.SessionInfo
+
+	if tok := t.commonPrm.SessionToken(); tok != nil {
+		ownerSession, _ := t.commonPrm.SessionOwner()
+
+		sessionInfo = &util.SessionInfo{
+			ID:    tok.ID(),
+			Owner: ownerSession,
+		}
+	}
+
+	key, err := t.keyStorage.GetKey(sessionInfo)
 	if err != nil {
 		return nil, fmt.Errorf("(%T) could not receive private key: %w", t, err)
 	}

pkg/services/object/put/streamer.go

@@ -84,7 +84,18 @@ func (p *Streamer) initTarget(prm *PutInitPrm) error {
 	// prepare trusted-Put object target
 
 	// get private token from local storage
-	sessionKey, err := p.keyStorage.GetKey(sToken)
+	var sessionInfo *util.SessionInfo
+
+	if sToken != nil {
+		ownerSession, _ := prm.common.SessionOwner()
+
+		sessionInfo = &util.SessionInfo{
+			ID:    sToken.ID(),
+			Owner: ownerSession,
+		}
+	}
+
+	sessionKey, err := p.keyStorage.GetKey(sessionInfo)
 	if err != nil {
 		return fmt.Errorf("(%T) could not receive session key: %w", p, err)
 	}

pkg/services/object/search/service.go

@@ -1,8 +1,6 @@
 package searchsvc
 
 import (
-	"crypto/ecdsa"
-
 	"github.com/nspcc-dev/neofs-node/pkg/core/client"
 	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine"
@@ -11,7 +9,6 @@ import (
 	"github.com/nspcc-dev/neofs-node/pkg/util/logger"
 	cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
 	oidSDK "github.com/nspcc-dev/neofs-sdk-go/object/id"
-	"github.com/nspcc-dev/neofs-sdk-go/session"
 	"go.uber.org/zap"
 )
 
@@ -51,9 +48,7 @@ type cfg struct {
 		currentEpoch() (uint64, error)
 	}
 
-	keyStore interface {
-		GetKey(token *session.Token) (*ecdsa.PrivateKey, error)
-	}
+	keyStore *util.KeyStorage
 }
 
 func defaultCfg() *cfg {

pkg/services/object/search/util.go

@@ -85,7 +85,18 @@ func (c *clientWrapper) searchObjects(exec *execCtx, info client.NodeInfo) ([]oi
 		return exec.prm.forwarder(info, c.client)
 	}
 
-	key, err := exec.svc.keyStore.GetKey(exec.prm.common.SessionToken())
+	var sessionInfo *util.SessionInfo
+
+	if tok := exec.prm.common.SessionToken(); tok != nil {
+		ownerSession, _ := exec.prm.common.SessionOwner()
+
+		sessionInfo = &util.SessionInfo{
+			ID:    tok.ID(),
+			Owner: ownerSession,
+		}
+	}
+
+	key, err := exec.svc.keyStore.GetKey(sessionInfo)
 	if err != nil {
 		return nil, err
 	}

pkg/services/object/util/key.go

@@ -2,11 +2,12 @@ package util
 
 import (
 	"crypto/ecdsa"
+	"fmt"
 
+	"github.com/google/uuid"
 	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
 	"github.com/nspcc-dev/neofs-node/pkg/services/session/storage"
 	apistatus "github.com/nspcc-dev/neofs-sdk-go/client/status"
-	"github.com/nspcc-dev/neofs-sdk-go/session"
 	"github.com/nspcc-dev/neofs-sdk-go/user"
 )
 
@@ -40,13 +41,28 @@ func NewKeyStorage(localKey *ecdsa.PrivateKey, tokenStore SessionSource, net net
 	}
 }
 
+// SessionInfo groups information about NeoFS Object session
+// which is reflected in KeyStorage.
+type SessionInfo struct {
+	// Session unique identifier.
+	ID uuid.UUID
+
+	// Session issuer.
+	Owner user.ID
+}
+
 // GetKey returns private key of the node.
 //
 // If token is not nil, session private key is returned.
 // Otherwise, node private key is returned.
-func (s *KeyStorage) GetKey(token *session.Token) (*ecdsa.PrivateKey, error) {
-	if token != nil {
-		pToken := s.tokenStore.Get(token.OwnerID(), token.ID())
+func (s *KeyStorage) GetKey(info *SessionInfo) (*ecdsa.PrivateKey, error) {
+	if info != nil {
+		binID, err := info.ID.MarshalBinary()
+		if err != nil {
+			return nil, fmt.Errorf("marshal ID: %w", err)
+		}
+
+		pToken := s.tokenStore.Get(&info.Owner, binID)
 		if pToken != nil {
 			if pToken.ExpiredAt() <= s.networkState.CurrentEpoch() {
 				var errExpired apistatus.SessionTokenExpired

pkg/services/object/util/key_test.go

@@ -11,7 +11,9 @@ import (
 	sessionV2 "github.com/nspcc-dev/neofs-api-go/v2/session"
 	"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
 	tokenStorage "github.com/nspcc-dev/neofs-node/pkg/services/session/storage/temporary"
+	neofsecdsa "github.com/nspcc-dev/neofs-sdk-go/crypto/ecdsa"
 	"github.com/nspcc-dev/neofs-sdk-go/session"
+	"github.com/nspcc-dev/neofs-sdk-go/user"
 	usertest "github.com/nspcc-dev/neofs-sdk-go/user/test"
 	"github.com/stretchr/testify/require"
 )
@@ -23,6 +25,8 @@ func TestNewKeyStorage(t *testing.T) {
 	tokenStor := tokenStorage.NewTokenStore()
 	stor := util.NewKeyStorage(&nodeKey.PrivateKey, tokenStor, mockedNetworkState{42})
 
+	owner := *usertest.ID()
+
 	t.Run("node key", func(t *testing.T) {
 		key, err := stor.GetKey(nil)
 		require.NoError(t, err)
@@ -30,48 +34,35 @@ func TestNewKeyStorage(t *testing.T) {
 	})
 
 	t.Run("unknown token", func(t *testing.T) {
-		tok := generateToken(t)
-		_, err = stor.GetKey(tok)
+		_, err = stor.GetKey(&util.SessionInfo{
+			ID:    uuid.New(),
+			Owner: *usertest.ID(),
+		})
 		require.Error(t, err)
 	})
 
 	t.Run("known token", func(t *testing.T) {
-		tok := createToken(t, tokenStor, 100)
-		pubKey, err := keys.NewPublicKeyFromBytes(tok.SessionKey(), elliptic.P256())
-		require.NoError(t, err)
+		tok := createToken(t, tokenStor, owner, 100)
 
-		key, err := stor.GetKey(tok)
+		key, err := stor.GetKey(&util.SessionInfo{
+			ID:    tok.ID(),
+			Owner: owner,
+		})
 		require.NoError(t, err)
-		require.Equal(t, pubKey.X, key.PublicKey.X)
-		require.Equal(t, pubKey.Y, key.PublicKey.Y)
+		require.True(t, tok.AssertAuthKey((*neofsecdsa.PublicKey)(&key.PublicKey)))
 	})
 
 	t.Run("expired token", func(t *testing.T) {
-		tok := createToken(t, tokenStor, 30)
-		_, err := stor.GetKey(tok)
+		tok := createToken(t, tokenStor, owner, 30)
+		_, err := stor.GetKey(&util.SessionInfo{
+			ID:    tok.ID(),
+			Owner: owner,
+		})
 		require.Error(t, err)
 	})
 }
 
-func generateToken(t *testing.T) *session.Token {
-	key, err := keys.NewPrivateKey()
-	require.NoError(t, err)
-
-	pubKey := key.PublicKey().Bytes()
-	id, err := uuid.New().MarshalBinary()
-	require.NoError(t, err)
-
-	tok := session.NewToken()
-	tok.SetSessionKey(pubKey)
-	tok.SetID(id)
-	tok.SetOwnerID(usertest.ID())
-
-	return tok
-}
-
-func createToken(t *testing.T, store *tokenStorage.TokenStore, exp uint64) *session.Token {
-	owner := usertest.ID()
-
+func createToken(t *testing.T, store *tokenStorage.TokenStore, owner user.ID, exp uint64) session.Object {
 	var ownerV2 refs.OwnerID
 	owner.WriteToV2(&ownerV2)
 
@@ -82,10 +73,15 @@ func createToken(t *testing.T, store *tokenStorage.TokenStore, exp uint64) *sess
 	resp, err := store.Create(context.Background(), req)
 	require.NoError(t, err)
 
-	tok := session.NewToken()
-	tok.SetSessionKey(resp.GetSessionKey())
-	tok.SetID(resp.GetID())
-	tok.SetOwnerID(owner)
+	pub, err := keys.NewPublicKeyFromBytes(resp.GetSessionKey(), elliptic.P256())
+	require.NoError(t, err)
+
+	var id uuid.UUID
+	require.NoError(t, id.UnmarshalBinary(resp.GetID()))
+
+	var tok session.Object
+	tok.SetAuthKey((*neofsecdsa.PublicKey)(pub))
+	tok.SetID(id)
 
 	return tok
 }

pkg/services/object/util/prm.go

@@ -1,11 +1,14 @@
 package util
 
 import (
+	"errors"
+	"fmt"
 	"strconv"
 
 	"github.com/nspcc-dev/neofs-api-go/v2/session"
 	"github.com/nspcc-dev/neofs-sdk-go/bearer"
 	sessionsdk "github.com/nspcc-dev/neofs-sdk-go/session"
+	"github.com/nspcc-dev/neofs-sdk-go/user"
 )
 
 // maxLocalTTL is maximum TTL for an operation to be considered local.
@@ -16,13 +19,15 @@ type CommonPrm struct {
 
 	netmapEpoch, netmapLookupDepth uint64
 
-	token *sessionsdk.Token
+	token *sessionsdk.Object
 
 	bearer *bearer.Token
 
 	ttl uint32
 
-	xhdrs []*sessionsdk.XHeader
+	xhdrs []string
+
+	ownerSession user.ID
 }
 
 // TTL returns TTL for new requests.
@@ -35,7 +40,7 @@ func (p *CommonPrm) TTL() uint32 {
 }
 
 // XHeaders returns X-Headers for new requests.
-func (p *CommonPrm) XHeaders() []*sessionsdk.XHeader {
+func (p *CommonPrm) XHeaders() []string {
 	if p != nil {
 		return p.xhdrs
 	}
@@ -59,7 +64,7 @@ func (p *CommonPrm) LocalOnly() bool {
 	return false
 }
 
-func (p *CommonPrm) SessionToken() *sessionsdk.Token {
+func (p *CommonPrm) SessionToken() *sessionsdk.Object {
 	if p != nil {
 		return p.token
 	}
@@ -67,6 +72,14 @@ func (p *CommonPrm) SessionToken() *sessionsdk.Token {
 	return nil
 }
 
+func (p *CommonPrm) SessionOwner() (user.ID, bool) {
+	if p != nil && p.token != nil {
+		return p.ownerSession, true
+	}
+
+	return user.ID{}, false
+}
+
 func (p *CommonPrm) BearerToken() *bearer.Token {
 	if p != nil {
 		return p.bearer
@@ -102,17 +115,38 @@ func CommonPrmFromV2(req interface {
 }) (*CommonPrm, error) {
 	meta := req.GetMetaHeader()
 
+	var tokenSession *sessionsdk.Object
+	var err error
+	var ownerSession user.ID
+
+	if tokenSessionV2 := meta.GetSessionToken(); tokenSessionV2 != nil {
+		ownerSessionV2 := tokenSessionV2.GetBody().GetOwnerID()
+		if ownerSessionV2 == nil {
+			return nil, errors.New("missing session owner")
+		}
+
+		err = ownerSession.ReadFromV2(*ownerSessionV2)
+		if err != nil {
+			return nil, fmt.Errorf("invalid session token: %w", err)
+		}
+
+		tokenSession = new(sessionsdk.Object)
+
+		err = tokenSession.ReadFromV2(*tokenSessionV2)
+		if err != nil {
+			return nil, fmt.Errorf("invalid session token: %w", err)
+		}
+	}
+
 	xHdrs := meta.GetXHeaders()
 	ttl := meta.GetTTL()
 
 	prm := &CommonPrm{
 		local:        ttl <= maxLocalTTL,
-		xhdrs: make([]*sessionsdk.XHeader, 0, len(xHdrs)),
+		token:        tokenSession,
 		ttl:          ttl - 1, // decrease TTL for new requests
-	}
-
-	if tok := meta.GetSessionToken(); tok != nil {
-		prm.token = sessionsdk.NewTokenFromV2(tok)
+		xhdrs:        make([]string, 0, 2*len(xHdrs)),
+		ownerSession: ownerSession,
 	}
 
 	if tok := meta.GetBearerToken(); tok != nil {
@@ -121,7 +155,7 @@ func CommonPrmFromV2(req interface {
 	}
 
 	for i := range xHdrs {
-		switch xHdrs[i].GetKey() {
+		switch key := xHdrs[i].GetKey(); key {
 		case session.XHeaderNetmapEpoch:
 			var err error
 
@@ -137,9 +171,7 @@ func CommonPrmFromV2(req interface {
 				return nil, err
 			}
 		default:
-			xhdr := sessionsdk.NewXHeaderFromV2(&xHdrs[i])
-
-			prm.xhdrs = append(prm.xhdrs, xhdr)
+			prm.xhdrs = append(prm.xhdrs, key, xHdrs[i].GetValue())
 		}
 	}
 

pkg/services/object_manager/transformer/fmt.go

@@ -25,7 +25,7 @@ type FormatterParams struct {
 
 	NextTarget ObjectTarget
 
-	SessionToken *session.Token
+	SessionToken *session.Object
 
 	NetworkState netmap.State
 }