From 26fe583a802a16095fd959b03fc840ad62001210 Mon Sep 17 00:00:00 2001
From: Anton Todorov <ANTodorov@users.noreply.github.com>
Date: Mon, 30 Sep 2024 16:56:14 +0300
Subject: [PATCH] hf mfu pwdgen with 4byte uid should adapt to 7 byte

Signed-off-by: Anton Todorov <ANTodorov@users.noreply.github.com>
---
 client/src/cmdhfmfu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/client/src/cmdhfmfu.c b/client/src/cmdhfmfu.c
index d56ae5123..1586d8bda 100644
--- a/client/src/cmdhfmfu.c
+++ b/client/src/cmdhfmfu.c
@@ -4392,6 +4392,10 @@ static int CmdHF14AMfUPwdGen(const char *Cmd) {
         if (u_len != 7 && u_len != 4) {
             PrintAndLogEx(WARNING, "Key must be 7 hex bytes");
             return PM3_EINVARG;
+        } else if (u_len == 4) {
+            // adapt to 7 bytes :)
+            memset(uid + 4, 0x00, 3);
+            u_len = 7;
         }
     }