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iclass additions

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multiple contributors - thanks!
This commit is contained in:
marshmellow42 2015-07-20 13:41:40 -04:00
parent d5810937bd
commit aa53efc340
13 changed files with 1580 additions and 415 deletions
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21
client/loclass/cipher.c
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@ -241,6 +241,27 @@ void doMAC(uint8_t *cc_nr_p, uint8_t *div_key_p, uint8_t mac[4])
//free(cc_nr);
return;
}
void doMAC_N(uint8_t *cc_nr_p,uint8_t cc_nr_size, uint8_t *div_key_p, uint8_t mac[4])
{
uint8_t *cc_nr;
uint8_t div_key[8];
cc_nr = (uint8_t*) malloc(cc_nr_size);
memcpy(cc_nr,cc_nr_p,cc_nr_size);
memcpy(div_key,div_key_p,8);
reverse_arraybytes(cc_nr,cc_nr_size);
BitstreamIn bitstream = {cc_nr,cc_nr_size * 8,0};
uint8_t dest []= {0,0,0,0,0,0,0,0};
BitstreamOut out = { dest, sizeof(dest)*8, 0 };
MAC(div_key,bitstream, out);
//The output MAC must also be reversed
reverse_arraybytes(dest, sizeof(dest));
memcpy(mac, dest, 4);
free(cc_nr);
return;
}
#ifndef ON_DEVICE
int testMAC()
{