X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/4c36581b96dfb81c85f34a4229d82e51edeaf499..b82c2f85e457f361b119d21a31f3263ac3489cc8:/client/cmdlfviking.c

diff --git a/client/cmdlfviking.c b/client/cmdlfviking.c
index b91aced8..039e4ae6 100644
--- a/client/cmdlfviking.c
+++ b/client/cmdlfviking.c
@@ -47,9 +47,9 @@ int usage_lf_viking_sim(void) {
 
 // calc checksum
 uint64_t getVikingBits(uint32_t id) {
-	uint8_t checksum = (id>>24) ^ ((id>>16) & 0xFF) ^ ((id>>8) & 0xFF) ^ (id & 0xFF) ^ 0xF2 ^ 0xA8;
+	uint8_t checksum = ((id>>24) & 0xFF) ^ ((id>>16) & 0xFF) ^ ((id>>8) & 0xFF) ^ (id & 0xFF) ^ 0xF2 ^ 0xA8;
 	uint64_t ret = (uint64_t)0xF2 << 56;
-	ret |= (id << 8);
+	ret |= (uint64_t)id << 8;
 	ret	|= checksum;
 	return ret;
 }