Update README.md

[proxmark3-svn] / tools / nonce2key / crypto1.c

diff --git a/tools/nonce2key/crypto1.c b/tools/nonce2key/crypto1.c
index 57a6c1df9157ce5bed3653af91d9dec630d919c5..f49a07225a1753d21bfebcb3b0b1ad65229cfd66 100644 (file)
--- a/tools/nonce2key/crypto1.c
+++ b/tools/nonce2key/crypto1.c
@@ -23,10 +23,13 @@
 struct Crypto1State * crypto1_create(uint64_t key)
 {
        struct Crypto1State *s = malloc(sizeof(*s));
+       if ( !s ) return NULL;
+
        s->odd = s->even = 0;   
+       
        int i;
-
-       for(i = 47;s && i > 0; i -= 2) {
+       //for(i = 47;s && i > 0; i -= 2) {
+       for(i = 47; i > 0; i -= 2) {
                s->odd  = s->odd  << 1 | BIT(key, (i - 1) ^ 7);
                s->even = s->even << 1 | BIT(key, i ^ 7);
        }