diff --git a/client/peer.go b/client/peer.go
index 1745515..5141f8c 100644
--- a/client/peer.go
+++ b/client/peer.go
@@ -205,7 +205,7 @@ func (p *Peer) AsymDecryptMessage(Message []byte, Signature []byte) (DecryptedMe
 // PackUserMessage will package the previously encrypted message
 func (p *Peer) PackUserMessage(message []byte, signature []byte) *meowlib.PackedUserMessage {
 	var msg meowlib.PackedUserMessage
-	//msg.SignaturePublicKey = p.MyIdentity.Public
+	msg.From = p.MyIdentity.Public
 	msg.Destination = p.ContactLookupKey
 	msg.Payload = message
 	msg.Signature = signature
diff --git a/messages.pb.go b/messages.pb.go
index 24c731a..6fb1a51 100644
--- a/messages.pb.go
+++ b/messages.pb.go
@@ -13,7 +13,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.6.1
+// 	protoc        v4.25.2
 // source: messages.proto
 
 package meowlib
@@ -955,11 +955,11 @@ type PackedUserMessage struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Destination     string  `protobuf:"bytes,1,opt,name=destination,proto3" json:"destination,omitempty"`                                  // the peer's current conversation lookup public key
-	SenderPublicKey string  `protobuf:"bytes,2,opt,name=sender_public_key,json=senderPublicKey,proto3" json:"sender_public_key,omitempty"` // the sender public key
-	Payload         []byte  `protobuf:"bytes,3,opt,name=payload,proto3" json:"payload,omitempty"`                                          // the message UserMessage encrypted with the destination peer's public key
-	Signature       []byte  `protobuf:"bytes,4,opt,name=signature,proto3" json:"signature,omitempty"`                                      // the payload signature with the client identity private key
-	ServerTimestamp []int64 `protobuf:"varint,5,rep,packed,name=serverTimestamp,proto3" json:"serverTimestamp,omitempty"`                  // server time stamp, might be several in matriochka mode
+	Destination     string  `protobuf:"bytes,1,opt,name=destination,proto3" json:"destination,omitempty"`                 // the peer's current conversation lookup public key
+	Payload         []byte  `protobuf:"bytes,2,opt,name=payload,proto3" json:"payload,omitempty"`                         // the message UserMessage encrypted with the destination peer's public key
+	Signature       []byte  `protobuf:"bytes,3,opt,name=signature,proto3" json:"signature,omitempty"`                     // the payload signature with the client identity private key
+	ServerTimestamp []int64 `protobuf:"varint,4,rep,packed,name=serverTimestamp,proto3" json:"serverTimestamp,omitempty"` // server time stamp, might be several in matriochka mode
+	From            string  `protobuf:"bytes,5,opt,name=from,proto3" json:"from,omitempty"`                               // the sender public key
 }
 
 func (x *PackedUserMessage) Reset() {
@@ -1001,13 +1001,6 @@ func (x *PackedUserMessage) GetDestination() string {
 	return ""
 }
 
-func (x *PackedUserMessage) GetSenderPublicKey() string {
-	if x != nil {
-		return x.SenderPublicKey
-	}
-	return ""
-}
-
 func (x *PackedUserMessage) GetPayload() []byte {
 	if x != nil {
 		return x.Payload
@@ -1029,6 +1022,13 @@ func (x *PackedUserMessage) GetServerTimestamp() []int64 {
 	return nil
 }
 
+func (x *PackedUserMessage) GetFrom() string {
+	if x != nil {
+		return x.From
+	}
+	return ""
+}
+
 type ConversationStatus struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1607,88 +1607,87 @@ var file_messages_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/pb/messages.proto b/pb/messages.proto
index 8af05bf..33be6ad 100644
--- a/pb/messages.proto
+++ b/pb/messages.proto
@@ -131,10 +131,10 @@ message ContactCard {
 // structure for sending a message to be forwarded to another user in protobuf format
 message PackedUserMessage {
 	string destination=1; // the peer's current conversation lookup public key
-    string sender_public_key=2; // the sender public key
-    bytes payload=3;  // the message UserMessage encrypted with the destination peer's public key
-	bytes signature=4; // the payload signature with the client identity private key
-    repeated int64 serverTimestamp=5; // server time stamp, might be several in matriochka mode
+    bytes payload=2;  // the message UserMessage encrypted with the destination peer's public key
+	bytes signature=3; // the payload signature with the client identity private key
+    repeated int64 serverTimestamp=4; // server time stamp, might be several in matriochka mode
+    string from=5; // the sender public key
 }
 
 message ConversationStatus {