- // tag nonce.\r
- memcpy(enc_random_b,receivedAnswer+1,8);\r
-\r
- // decrypt nonce.\r
- tdes_2key_dec(random_b, enc_random_b, sizeof(random_b), key, IV );\r
- rol(random_b,8);\r
- memcpy(rnd_ab ,random_a,8);\r
- memcpy(rnd_ab+8,random_b,8);\r
-\r
- if (MF_DBGLEVEL >= MF_DBG_EXTENDED) {\r
- Dbprintf("enc_B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
- enc_random_b[0],enc_random_b[1],enc_random_b[2],enc_random_b[3],\r
- enc_random_b[4],enc_random_b[5],enc_random_b[6],enc_random_b[7]);\r
- \r
- Dbprintf(" B: %02x %02x %02x %02x %02x %02x %02x %02x",\r
- random_b[0],random_b[1],random_b[2],random_b[3],\r
- random_b[4],random_b[5],random_b[6],random_b[7]);\r
-\r
- Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
- rnd_ab[0],rnd_ab[1],rnd_ab[2],rnd_ab[3],\r
- rnd_ab[4],rnd_ab[5],rnd_ab[6],rnd_ab[7]);\r
- \r
- Dbprintf("rnd_ab: %02x %02x %02x %02x %02x %02x %02x %02x",\r
- rnd_ab[8],rnd_ab[9],rnd_ab[10],rnd_ab[11],\r
- rnd_ab[12],rnd_ab[13],rnd_ab[14],rnd_ab[15] );\r
- }\r
- \r
- // encrypt out, in, length, key, iv\r
- tdes_2key_enc(rnd_ab, rnd_ab, sizeof(rnd_ab), key, enc_random_b);\r