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fix

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This commit is contained in:
merlokk 2021-08-07 14:53:23 +03:00
parent ce39985d19
commit 7ea7e4b364
1 changed files with 1 additions and 1 deletions
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2
client/src/mifare/desfire_crypto.c
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@ -320,7 +320,6 @@ void cmac(const desfirekey_t key, uint8_t *ivect, const uint8_t *data, size_t le
// This function is almot like cmac(...). but with some key differences.
void mifare_kdf_an10922(const desfirekey_t key, const uint8_t *data, size_t len) {
int kbs = key_block_size(key);
int kbs2 = kbs * 2;
if (key == NULL || kbs == 0 || data == NULL || len < 1 || len > 31) {
return;
}
@ -328,6 +327,7 @@ void mifare_kdf_an10922(const desfirekey_t key, const uint8_t *data, size_t len)
// AES uses 16 byte IV
if (kbs < 16)
kbs = 16;
int kbs2 = kbs * 2;
cmac_generate_subkeys(key, MCD_SEND);