diff --git a/README.md b/README.md
index 7dea693..c0b1abc 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ Currently the following commands are implemented:
  * Reset
  * GenerateAsymmetricKey
  * SignDataEddsa
+ * SignDataPkcs1
  * PutAsymmetricKey
  * GetPubKey
  * DeriveEcdh
diff --git a/commands/constructors.go b/commands/constructors.go
index d4e7576..c200854 100644
--- a/commands/constructors.go
+++ b/commands/constructors.go
@@ -94,6 +94,20 @@ func CreateSignDataEcdsaCommand(keyID uint16, data []byte) (*CommandMessage, err
 	return command, nil
 }
 
+func CreateSignDataPkcs1Command(keyID uint16, data []byte) (*CommandMessage, error) {
+	command := &CommandMessage{
+		CommandType: CommandTypeSignDataPkcs1,
+	}
+
+	payload := bytes.NewBuffer([]byte{})
+	binary.Write(payload, binary.BigEndian, keyID)
+	payload.Write(data)
+
+	command.Data = payload.Bytes()
+
+	return command, nil
+}
+
 func CreatePutAsymmetricKeyCommand(keyID uint16, label []byte, domains uint16, capabilities uint64, algorithm Algorithm, keyPart1 []byte, keyPart2 []byte) (*CommandMessage, error) {
 	if len(label) > LabelLength {
 		return nil, errors.New("label is too long")
diff --git a/commands/response.go b/commands/response.go
index 2ae790c..e9aa55d 100644
--- a/commands/response.go
+++ b/commands/response.go
@@ -62,6 +62,10 @@ type (
 		Signature []byte
 	}
 
+	SignDataPkcs1Response struct {
+		Signature []byte
+	}
+
 	SignDataEcdsaResponse struct {
 		Signature []byte
 	}
@@ -127,6 +131,8 @@ func ParseResponse(data []byte) (Response, error) {
 		return parseSignDataEddsaResponse(payload)
 	case CommandTypeSignDataEcdsa:
 		return parseSignDataEcdsaResponse(payload)
+	case CommandTypeSignDataPkcs1:
+		return parseSignDataPkcs1Response(payload)
 	case CommandTypePutAsymmetric:
 		return parsePutAsymmetricKeyResponse(payload)
 	case CommandTypeListObjects:
@@ -210,6 +216,12 @@ func parseSignDataEddsaResponse(payload []byte) (Response, error) {
 	}, nil
 }
 
+func parseSignDataPkcs1Response(payload []byte) (Response, error) {
+	return &SignDataPkcs1Response{
+		Signature: payload,
+	}, nil
+}
+
 func parseSignDataEcdsaResponse(payload []byte) (Response, error) {
 	return &SignDataEcdsaResponse{
 		Signature: payload,