diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7b46745..b76c77e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,15 @@
 # Changelog
 This is the changelog for NeoFS Proto
 
+## [0.2.8] - 2019-12-21
+
+### Added
+- Container access control type definitions
+
+### Changed
+- Used sync.Pool for Sign/VerifyRequestHeader
+- VerifiableRequest.Marshal method replace with MarshalTo and Size
+
 ## [0.2.7] - 2019-12-17
 
 ### Fixed
@@ -78,3 +87,4 @@ Initial public release
 [0.2.5]: https://github.com/nspcc-dev/neofs-proto/compare/v0.2.4...v0.2.5
 [0.2.6]: https://github.com/nspcc-dev/neofs-proto/compare/v0.2.5...v0.2.6
 [0.2.7]: https://github.com/nspcc-dev/neofs-proto/compare/v0.2.6...v0.2.7
+[0.2.8]: https://github.com/nspcc-dev/neofs-proto/compare/v0.2.7...v0.2.8
diff --git a/container/service.pb.go b/container/service.pb.go
index d9febc0..cac8764 100644
Binary files a/container/service.pb.go and b/container/service.pb.go differ
diff --git a/container/service.proto b/container/service.proto
index 8a3f56c..9bd02c9 100644
--- a/container/service.proto
+++ b/container/service.proto
@@ -41,6 +41,9 @@ message PutRequest {
     // Rules define storage policy for the object inside the container.
     netmap.PlacementRule rules               = 4 [(gogoproto.nullable) = false];
 
+    // Container ACL.
+    AccessGroup Group                        = 5 [(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)
diff --git a/container/types.go b/container/types.go
index 9269f30..d5d5a77 100644
--- a/container/types.go
+++ b/container/types.go
@@ -11,6 +11,19 @@ import (
 	"github.com/pkg/errors"
 )
 
+// AccessMode is a container access mode type.
+type AccessMode uint32
+
+const (
+	// AccessModeRead is a read access mode.
+	AccessModeRead AccessMode = 1 << iota
+	// AccessModeWrite is a write access mode.
+	AccessModeWrite
+)
+
+// AccessModeReadWrite is a read/write container access mode.
+const AccessModeReadWrite = AccessModeRead | AccessModeWrite
+
 var (
 	_ internal.Custom = (*Container)(nil)
 
diff --git a/container/types.pb.go b/container/types.pb.go
index 7bf9a03..7a454de 100644
Binary files a/container/types.pb.go and b/container/types.pb.go differ
diff --git a/container/types.proto b/container/types.proto
index a601edd..4600046 100644
--- a/container/types.proto
+++ b/container/types.proto
@@ -17,4 +17,18 @@ message Container {
     uint64 Capacity            = 3;
     // Rules define storage policy for the object inside the container.
     netmap.PlacementRule Rules = 4 [(gogoproto.nullable) = false];
+    // Container ACL.
+    AccessControlList List     = 5 [(gogoproto.nullable) = false];
+}
+
+message AccessGroup {
+    // Group access mode.
+    uint32 AccessMode         = 1;
+    // Group members.
+    repeated bytes UserGroup  = 2 [(gogoproto.customtype) = "OwnerID", (gogoproto.nullable) = false];
+}
+
+message AccessControlList {
+    // List of access groups.
+    repeated AccessGroup List = 1 [(gogoproto.nullable) = false];
 }
diff --git a/container/types_test.go b/container/types_test.go
index c7dbbf8..cfd5f52 100644
--- a/container/types_test.go
+++ b/container/types_test.go
@@ -55,3 +55,23 @@ func TestCID(t *testing.T) {
 		require.Equal(t, cid1, cid2)
 	})
 }
+
+func TestAccessMode(t *testing.T) {
+	t.Run("read access to read/write mode", func(t *testing.T) {
+		require.Equal(t, AccessModeRead, AccessModeReadWrite&AccessModeRead)
+	})
+
+	t.Run("write access to read/write mode", func(t *testing.T) {
+		require.Equal(t, AccessModeWrite, AccessModeReadWrite&AccessModeWrite)
+	})
+
+	t.Run("read(write) access to write(read) mode", func(t *testing.T) {
+		require.Zero(t, AccessModeRead&AccessModeWrite)
+	})
+
+	t.Run("access to same mode", func(t *testing.T) {
+		require.Equal(t, AccessModeWrite, AccessModeWrite&AccessModeWrite)
+		require.Equal(t, AccessModeRead, AccessModeRead&AccessModeRead)
+		require.Equal(t, AccessModeReadWrite, AccessModeReadWrite&AccessModeReadWrite)
+	})
+}
diff --git a/go.mod b/go.mod
index fd114d3..bb8c4ff 100644
--- a/go.mod
+++ b/go.mod
@@ -18,3 +18,6 @@ require (
 	golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550
 	google.golang.org/grpc v1.24.0
 )
+
+// Used for debug reasons
+// replace github.com/nspcc-dev/neofs-crypto => ../neofs-crypto
diff --git a/service/verify.go b/service/verify.go
index 8571459..2bd1661 100644
--- a/service/verify.go
+++ b/service/verify.go
@@ -2,6 +2,7 @@ package service
 
 import (
 	"crypto/ecdsa"
+	"sync"
 
 	crypto "github.com/nspcc-dev/neofs-crypto"
 	"github.com/nspcc-dev/neofs-proto/internal"
@@ -12,7 +13,8 @@ import (
 type (
 	// VerifiableRequest adds possibility to sign and verify request header.
 	VerifiableRequest interface {
-		Marshal() ([]byte, error)
+		Size() int
+		MarshalTo([]byte) (int, error)
 		AddSignature(*RequestVerificationHeader_Signature)
 		GetSignatures() []*RequestVerificationHeader_Signature
 		SetSignatures([]*RequestVerificationHeader_Signature)
@@ -133,6 +135,10 @@ func newSignature(key *ecdsa.PrivateKey, data []byte) (*RequestVerificationHeade
 	}, nil
 }
 
+var bytesPool = sync.Pool{New: func() interface{} {
+	return make([]byte, 4.5*1024*1024) // 4.5MB
+}}
+
 // SignRequestHeader receives private key and request with RequestVerificationHeader,
 // tries to marshal and sign request with passed PrivateKey, after that adds
 // new signature to headers. If something went wrong, returns error.
@@ -146,12 +152,23 @@ func SignRequestHeader(key *ecdsa.PrivateKey, msg VerifiableRequest) error {
 		}()
 	}
 
-	data, err := msg.Marshal()
+	data := bytesPool.Get().([]byte)
+	defer func() {
+		bytesPool.Put(data)
+	}()
+
+	if size := msg.Size(); size <= cap(data) {
+		data = data[:size]
+	} else {
+		data = make([]byte, size)
+	}
+
+	size, err := msg.MarshalTo(data)
 	if err != nil {
 		return err
 	}
 
-	signature, err := newSignature(key, data)
+	signature, err := newSignature(key, data[:size])
 	if err != nil {
 		return err
 	}
@@ -174,8 +191,10 @@ func VerifyRequestHeader(msg VerifiableRequest) error {
 		}()
 	}
 
+	data := bytesPool.Get().([]byte)
 	signatures := msg.GetSignatures()
 	defer func() {
+		bytesPool.Put(data)
 		msg.SetSignatures(signatures)
 	}()
 
@@ -189,9 +208,15 @@ func VerifyRequestHeader(msg VerifiableRequest) error {
 			return errors.Wrapf(ErrCannotLoadPublicKey, "%d: %02x", i, peer)
 		}
 
-		if data, err := msg.Marshal(); err != nil {
+		if size := msg.Size(); size <= cap(data) {
+			data = data[:size]
+		} else {
+			data = make([]byte, size)
+		}
+
+		if size, err := msg.MarshalTo(data); err != nil {
 			return errors.Wrapf(err, "%d: %02x", i, peer)
-		} else if err := crypto.Verify(key, data, sign); err != nil {
+		} else if err := crypto.Verify(key, data[:size], sign); err != nil {
 			return errors.Wrapf(err, "%d: %02x", i, peer)
 		}
 	}
diff --git a/service/verify_test.go b/service/verify_test.go
index 237e362..44542c4 100644
--- a/service/verify_test.go
+++ b/service/verify_test.go
@@ -14,6 +14,57 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
+func BenchmarkSignRequestHeader(b *testing.B) {
+	key := test.DecodeKey(0)
+
+	custom := testCustomField{1, 2, 3, 4, 5, 6, 7, 8}
+
+	some := &TestRequest{
+		IntField:    math.MaxInt32,
+		StringField: "TestRequestStringField",
+		BytesField:  make([]byte, 1<<22),
+		CustomField: &custom,
+		RequestMetaHeader: RequestMetaHeader{
+			TTL:   math.MaxInt32 - 8,
+			Epoch: math.MaxInt64 - 12,
+		},
+	}
+
+	b.ResetTimer()
+	b.ReportAllocs()
+
+	for i := 0; i < b.N; i++ {
+		require.NoError(b, SignRequestHeader(key, some))
+	}
+}
+
+func BenchmarkVerifyRequestHeader(b *testing.B) {
+	custom := testCustomField{1, 2, 3, 4, 5, 6, 7, 8}
+
+	some := &TestRequest{
+		IntField:    math.MaxInt32,
+		StringField: "TestRequestStringField",
+		BytesField:  make([]byte, 1<<22),
+		CustomField: &custom,
+		RequestMetaHeader: RequestMetaHeader{
+			TTL:   math.MaxInt32 - 8,
+			Epoch: math.MaxInt64 - 12,
+		},
+	}
+
+	for i := 0; i < 10; i++ {
+		key := test.DecodeKey(i)
+		require.NoError(b, SignRequestHeader(key, some))
+	}
+
+	b.ResetTimer()
+	b.ReportAllocs()
+
+	for i := 0; i < b.N; i++ {
+		require.NoError(b, VerifyRequestHeader(some))
+	}
+}
+
 func TestSignRequestHeader(t *testing.T) {
 	req := &TestRequest{
 		IntField:    math.MaxInt32,