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added diversification function d1

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This commit is contained in:
matthias.ringwald@gmail.com 2013-11-08 21:12:51 +00:00
parent ddcf31ed28
commit c686dfc823
1 changed files with 13 additions and 1 deletions
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14
example/libusb/ble_server.c
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@ -200,6 +200,19 @@ static inline void swap56(uint8_t src[7], uint8_t dst[7]){
dst[6 - i] = src[i];
}
static void sm_d1(key_t k, uint16_t d, uint16_t r){
// d'= padding || r || d
key_t d1_prime;
memset(d1_prime, 0, 16);
net_store_16(d1_prime, 12, r);
net_store_16(d1_prime, 14, d);
// d1(k,d,r) = e(k, d'),
unsigned long rk[RKLENGTH(KEYBITS)];
int nrounds = rijndaelSetupEncrypt(rk, &k[0], KEYBITS);
key_t d1;
rijndaelEncrypt(rk, nrounds, k, d1);
}
static void sm_c1(key_t k, key_t r, uint8_t preq[7], uint8_t pres[7], uint8_t iat, uint8_t rat, bd_addr_t ia, bd_addr_t ra, key_t c1){
printf("iat %u\n", iat);
@ -207,7 +220,6 @@ static void sm_c1(key_t k, key_t r, uint8_t preq[7], uint8_t pres[7], uint8_t ia
print_bd_addr(ia);
print_bd_addr(ra);
// p1 = pres || preq || rat’ || iat’
// "The octet of iat’ becomes the least significant octet of p1 and the most signifi-
// cant octet of pres becomes the most significant octet of p1.