From 11bd9d2fb6478bbd5a8073d9b8025a1a0d781996 Mon Sep 17 00:00:00 2001
From: Gary Belvin <gdbelvin@gmail.com>
Date: Mon, 1 Mar 2021 11:47:30 +0000
Subject: [PATCH] Add GetPseudoRandom Command

---
 commands/constructors.go | 12 ++++++++++++
 commands/response.go     |  6 ++++++
 2 files changed, 18 insertions(+)

diff --git a/commands/constructors.go b/commands/constructors.go
index caf69d7..0f3c238 100644
--- a/commands/constructors.go
+++ b/commands/constructors.go
@@ -236,3 +236,15 @@ func CreateChangeAuthenticationKeyCommand(objID uint16, newPassword string) (*Co
 
 	return command, nil
 }
+
+func CreateGetPseudoRandomCommand(numBytes uint16) *CommandMessage {
+	command := &CommandMessage{
+		CommandType: CommandTypeGetPseudoRandom,
+	}
+
+	payload := bytes.NewBuffer([]byte{})
+	binary.Write(payload, binary.BigEndian, numBytes)
+	command.Data = payload.Bytes()
+
+	return command
+}
diff --git a/commands/response.go b/commands/response.go
index bbdf3d4..276f031 100644
--- a/commands/response.go
+++ b/commands/response.go
@@ -137,6 +137,8 @@ func ParseResponse(data []byte) (Response, error) {
 		return parseDeriveEcdhResponse(payload)
 	case CommandTypeChangeAuthenticationKey:
 		return parseChangeAuthenticationKeyResponse(payload)
+	case CommandTypeGetPseudoRandom:
+		return parseGetPseudoRandomResponse(payload), nil
 	case ErrorResponseCode:
 		return nil, parseErrorResponse(payload)
 	default:
@@ -282,6 +284,10 @@ func parseChangeAuthenticationKeyResponse(payload []byte) (Response, error) {
 	return &ChangeAuthenticationKeyResponse{ObjectID: objectID}, nil
 }
 
+func parseGetPseudoRandomResponse(payload []byte) Response {
+	return payload
+}
+
 // Error formats a card error message into a human readable format
 func (e *Error) Error() string {
 	message := ""