void dump_stuff_mmx_msg_sepline(const void * msg,
void * buf,
unsigned int size,
unsigned int index)
{
printf("%s :\n", (char *) msg);
dump_stuff_mmx(buf, size, index);
}
static void wpapsk_crypt_all(int count) {
#ifdef MMX_COEF
/*int i;*/
printf("\n");
dump_stuff_mmx(ipad, 64, 0);
memcpy(dump, ipad, 64*MMX_COEF);
shammx_nosizeupdate( dump, dump, 64);
memcpy(dump, cursalt, 64*MMX_COEF);
shammx_noinit_uniformsizeupdate(dump, dump, total_len + 64 );
dump_stuff_mmx(dump, SHA_SIZE, 0);
shammx_nosizeupdate( dump, opad, 64);
shammx_noinit_uniformsizeupdate(dump, dump, SHA_SIZE + 64);
dump_stuff_mmx(dump, SHA_SIZE, 0);
return;
#else
unsigned char dump[SHA_SIZE];
unsigned char digest[SHA_SIZE];
unsigned char ptk[20*4];
unsigned int i,j;
MD5_CTX md5ctx;
//printf("\n");
//first calculation - left part
SHA1_Init( &ctx );
SHA1_Update( &ctx, ipad, 64 );
SHA1_Update( &ctx, cursalt, strlen(cursalt) + 4 );
SHA1_Final( dump, &ctx);
SHA1_Init( &ctx );
SHA1_Update( &ctx, opad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE);
SHA1_Final( dump, &ctx);
memcpy(digest, dump, SHA_SIZE);
for(i=1;i<4096;i++)
{
SHA1_Init( &ctx );
SHA1_Update( &ctx, ipad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE );
SHA1_Final( dump, &ctx);
SHA1_Init( &ctx );
SHA1_Update( &ctx, opad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE);
SHA1_Final( dump, &ctx);
for(j=0;j<SHA_SIZE;j++)
digest[j] ^= dump[j];
}
//first calculation - right part
cursalt[ strlen(cursalt) + 3 ] = 2;
SHA1_Init( &ctx );
SHA1_Update( &ctx, ipad, 64 );
SHA1_Update( &ctx, cursalt, strlen(cursalt) + 4 );
SHA1_Final( dump, &ctx);
SHA1_Init( &ctx );
SHA1_Update( &ctx, opad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE);
SHA1_Final( dump, &ctx);
memcpy(digest+SHA_SIZE, dump, 32-SHA_SIZE);
for(i=1;i<4096;i++)
{
SHA1_Init( &ctx );
SHA1_Update( &ctx, ipad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE );
SHA1_Final( dump, &ctx);
SHA1_Init( &ctx );
SHA1_Update( &ctx, opad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE);
SHA1_Final( dump, &ctx);
for(j=0;j<32-SHA_SIZE;j++)
digest[j+SHA_SIZE] ^= dump[j];
}
//we now got pmk in digest,32
//dump_stuff(digest, 32 );
for(i=0;i<32;i++)
{
nipad[i] = 0x36 ^ digest[i];
nopad[i] = 0x5c ^ digest[i];
}
//a hmac must be done with secret key pmk/32, and text "Pairwise key expansion",0,DATA,counter
nDATA[23+64+12] = 0;
SHA1_Init( &ctx );
SHA1_Update( &ctx, nipad, 64 );
SHA1_Update( &ctx, nDATA, 22+1+12+64+1 );
SHA1_Final( dump, &ctx );
SHA1_Init( &ctx );
SHA1_Update( &ctx, nopad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE);
SHA1_Final( ptk, &ctx);
//seems not to be used ...
/*
nDATA[23+64+12] = 1;
SHA1_Init( &ctx );
SHA1_Update( &ctx, nipad, 64 );
SHA1_Update( &ctx, nDATA, 22+1+12+64+1 );
SHA1_Final( dump, &ctx );
SHA1_Init( &ctx );
SHA1_Update( &ctx, nopad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE);
SHA1_Final( ptk + 20, &ctx);
nDATA[23+64+12] = 2;
SHA1_Init( &ctx );
SHA1_Update( &ctx, nipad, 64 );
SHA1_Update( &ctx, nDATA, 22+1+12+64+1 );
SHA1_Final( dump, &ctx );
SHA1_Init( &ctx );
SHA1_Update( &ctx, nopad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE);
SHA1_Final( ptk + 40, &ctx);
nDATA[23+64+12] = 3;
SHA1_Init( &ctx );
SHA1_Update( &ctx, nipad, 64 );
SHA1_Update( &ctx, nDATA, 22+1+12+64+1 );
SHA1_Final( dump, &ctx );
SHA1_Init( &ctx );
SHA1_Update( &ctx, nopad, 64 );
SHA1_Update( &ctx, dump, SHA_SIZE);
SHA1_Final( ptk + 60, &ctx);
*/
//we now have the ptk ...
//now hmac md5 ...
memset(nipad + 16, 0x36 , 16);
memset(nopad + 16, 0x5C , 16);
for(i=0;i<16;i++)
{
nipad[i] = 0x36 ^ ptk[i];
nopad[i] = 0x5C ^ ptk[i];
}
MD5_Init( &md5ctx );
MD5_Update( &md5ctx, nipad, 64 );
MD5_Update( &md5ctx, EAPOL, sizeof(EAPOL) );
MD5_Final ( dump, &md5ctx );
MD5_Init( &md5ctx );
MD5_Update( &md5ctx, nopad, 64 );
MD5_Update( &md5ctx, dump, 16 );
MD5_Final ( crypt_key, &md5ctx );
#endif
}