[p][t] Add document hash in launchSignature

dfssp/api/platform.pb.go

@@ -261,14 +261,16 @@ type LaunchSignature struct {
 	ErrorCode *ErrorCode `protobuf:"bytes,1,opt,name=errorCode" json:"errorCode,omitempty"`
 	// / The unique signature generated by the platform for this specific signature attempt
 	SignatureUuid string `protobuf:"bytes,2,opt,name=signatureUuid" json:"signatureUuid,omitempty"`
+	// / The SHA-512 hash of the contract document
+	DocumentHash []byte `protobuf:"bytes,3,opt,name=documentHash,proto3" json:"documentHash,omitempty"`
 	// / A confirmation of client hashes for communication authentication
-	KeyHash [][]byte `protobuf:"bytes,3,rep,name=keyHash,proto3" json:"keyHash,omitempty"`
+	KeyHash [][]byte `protobuf:"bytes,4,rep,name=keyHash,proto3" json:"keyHash,omitempty"`
 	// / The signing sequence generated on-the-fly by the platform
-	Sequence []uint32 `protobuf:"varint,4,rep,name=sequence" json:"sequence,omitempty"`
-	// / The cryptographic object of the signature of this structure (hash and errorCode excepted) by the platform, for data certification.
+	Sequence []uint32 `protobuf:"varint,5,rep,name=sequence" json:"sequence,omitempty"`
+	// / The cryptographic object of the signature of this structure (seal and errorCode excepted) by the platform, for data certification.
 	// / The signature is computed using auth.SignStructure function:
 	// / PKCS1v15 + SHA512 hash of the string representation of the structure
-	Seal []byte `protobuf:"bytes,5,opt,name=seal,proto3" json:"seal,omitempty"`
+	Seal []byte `protobuf:"bytes,6,opt,name=seal,proto3" json:"seal,omitempty"`
 }
 
 func (m *LaunchSignature) Reset()                    { *m = LaunchSignature{} }
@@ -618,50 +620,51 @@ var _Platform_serviceDesc = grpc.ServiceDesc{
 }
 
 var fileDescriptor0 = []byte{
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 }

dfssp/api/platform.proto

@@ -136,12 +136,14 @@ message LaunchSignature {
 	ErrorCode errorCode = 1;
 	/// The unique signature generated by the platform for this specific signature attempt
 	string signatureUuid = 2;
+	/// The SHA-512 hash of the contract document
+	bytes documentHash = 3;
 	/// A confirmation of client hashes for communication authentication
-	repeated bytes keyHash = 3;
+	repeated bytes keyHash = 4;
 	/// The signing sequence generated on-the-fly by the platform
-	repeated uint32 sequence = 4;
-	/// The cryptographic object of the signature of this structure (hash and errorCode excepted) by the platform, for data certification.
+	repeated uint32 sequence = 5;
+	/// The cryptographic object of the signature of this structure (seal and errorCode excepted) by the platform, for data certification.
 	/// The signature is computed using auth.SignStructure function:
 	/// PKCS1v15 + SHA512 hash of the string representation of the structure
-	bytes seal = 5;
+	bytes seal = 6;
 }

dfssp/contract/ready.go

@@ -14,10 +14,11 @@ import (
 
 // readySignal is the structure that is transmitted accross goroutines
 type readySignal struct {
-	ready    bool     // If true, this is the ready signal. If not, this is a new connection signal
-	data     string   // Various data (CN or SignatureUUID)
-	chain    [][]byte // Only used to broadcast hash chain (signers hashes in order)
-	sequence []uint32 // Only used to broadcast signature sequence
+	ready        bool     // If true, this is the ready signal. If not, this is a new connection signal
+	data         string   // Various data (CN or SignatureUUID)
+	documentHash []byte   // Contract document SHA-512 hash
+	chain        [][]byte // Only used to broadcast hash chain (signers hashes in order)
+	sequence     []uint32 // Only used to broadcast signature sequence
 }
 
 // ReadySign is the last job of the platform before the signature can occur.
@@ -56,6 +57,7 @@ func ReadySign(db *mgdb.MongoManager, rooms *common.WaitingGroupMap, ctx *contex
 					return &api.LaunchSignature{
 						ErrorCode:     &api.ErrorCode{Code: api.ErrorCode_SUCCESS},
 						SignatureUuid: s.data,
+						DocumentHash:  s.documentHash,
 						KeyHash:       s.chain,
 						Sequence:      s.sequence,
 					}
@@ -110,10 +112,11 @@ func masterReadyRoutine(db *mgdb.MongoManager, rooms *common.WaitingGroupMap, co
 			ready := FindAndUpdatePendingSigner(cn, &signersReady, &contract.Signers)
 			if ready {
 				rooms.Broadcast(roomID, &readySignal{
-					ready:    true,
-					data:     bson.NewObjectId().Hex(),
-					chain:    contract.GetHashChain(),
-					sequence: GenerateSignSequence(len(contract.Signers)),
+					ready:        true,
+					data:         bson.NewObjectId().Hex(),
+					documentHash: contract.File.Hash,
+					chain:        contract.GetHashChain(),
+					sequence:     GenerateSignSequence(len(contract.Signers)),
 				})
 				work = false
 			}

dfsst/entities/check_request.go

@@ -146,6 +146,7 @@ func IsPlatformSealValid(promise *cAPI.Promise) bool {
 
 	theoric := pAPI.LaunchSignature{
 		SignatureUuid: promise.Context.SignatureUUID,
+		DocumentHash:  promise.Context.ContractDocumentHash,
 		KeyHash:       promise.Context.Signers,
 		Sequence:      promise.Context.Sequence,
 	}