static inline bool HashFunction_Init(const int hashType, hash_ctx *const ctx)
{
memset(ctx, 0, sizeof(hash_ctx));
switch(ctx->hashType = hashType)
{
case STD_HASHTYPE_CRC_32: rhash_crc32_init(&ctx->data.crc32); return true;
case STD_HASHTYPE_MD5_128: rhash_md5_init(&ctx->data.md5); return true;
case STD_HASHTYPE_SHA1_160: rhash_sha1_init(&ctx->data.sha1); return true;
case STD_HASHTYPE_SHA2_224: rhash_sha224_init(&ctx->data.sha256); return true;
case STD_HASHTYPE_SHA2_256: rhash_sha256_init(&ctx->data.sha256); return true;
case STD_HASHTYPE_SHA2_384: rhash_sha384_init(&ctx->data.sha512); return true;
case STD_HASHTYPE_SHA2_512: rhash_sha512_init(&ctx->data.sha512); return true;
case STD_HASHTYPE_SHA3_224: rhash_sha3_224_init(&ctx->data.sha3); return true;
case STD_HASHTYPE_SHA3_256: rhash_sha3_256_init(&ctx->data.sha3); return true;
case STD_HASHTYPE_SHA3_384: rhash_sha3_384_init(&ctx->data.sha3); return true;
case STD_HASHTYPE_SHA3_512: rhash_sha3_512_init(&ctx->data.sha3); return true;
case STD_HASHTYPE_BLK2_224:
case STD_HASHTYPE_BLK2_256:
case STD_HASHTYPE_BLK2_384:
case STD_HASHTYPE_BLK2_512:
if(blake2b_init(&ctx->data.balke2, Blake2_Size(ctx->hashType)) != 0)
{
MessageBox(NULL, T("Blake2_Init internal error, going to abort!"), T("StdUtils::HashFunction_Init"), MB_ICONSTOP | MB_TOPMOST);
abort();
}
return true;
default:
ERROR_MSG(T("The specified hash type is unknown/unsupported!"));
return false;
}
}
unsigned char *computeV4(const unsigned char *src, int len)
{
static unsigned char buf[0x100];
static unsigned char s[20];
memcpy(s, src, 16);
unsigned char wtmp[160];
int wpos = 0;
int i;
uint32_t v4_check_type = ((signed char)s[0] + (signed char)s[3]) % 5u;
printf("V4 type: %d\n", v4_check_type);
switch(v4_check_type)
{
case 0:
{
unsigned char mtmp[16];
md5_ctx mctx;
rhash_md5_init(&mctx);
rhash_md5_update(&mctx, array, 0x71c);
rhash_md5_final(&mctx, mtmp);
char tbuf[10];
for (i=0; i<16; ++i)
{
sprintf((char*)wtmp + wpos, "%02x", mtmp[i]);
wpos += 2;
}
for (i=0; i<8; ++i)
{
sprintf(tbuf, "%02x", (signed char)(s[2*i]));
strcpy((char*)wtmp + wpos, tbuf);
wpos += strlen(tbuf);
}
rhash_md5_init(&mctx);
rhash_md5_update(&mctx, array_1, 0x7f3);
rhash_md5_final(&mctx, mtmp);
for (i=0; i<16; ++i)
{
sprintf((char*)wtmp + wpos, "%02x", mtmp[i]);
wpos += 2;
}
for (i=0; i<8; ++i)
{
sprintf(tbuf, "%02x", (signed char)(s[2*i+1]));
strcpy((char*)wtmp + wpos, tbuf);
wpos += strlen(tbuf);
}
wpos = 0x60;
break;
}
case 1:
{
sha1_ctx sctx;
rhash_sha1_init(&sctx);
rhash_sha1_update(&sctx, array_1,0x7f3);
rhash_sha1_final(&sctx, wtmp);
wpos += 20;
memcpy(wtmp + wpos, s, 6);
wpos += 6;
rhash_sha1_init(&sctx);
rhash_sha1_update(&sctx, array,0x71c);
rhash_sha1_final(&sctx,wtmp + wpos);
wpos += 20;
memcpy(wtmp + wpos, s+6, 10);
wpos += 10;
break;
}
case 2:
{
sha1_ctx sctx;
rhash_sha1_init(&sctx);
rhash_sha1_update(&sctx,array_1,0x7f3);
rhash_sha1_final(&sctx,wtmp);
wpos += 20;
memcpy(wtmp + wpos, s, 6);
wpos += 6;
struct ampheck_ripemd128 rctx;
ampheck_ripemd128_init(&rctx);
ampheck_ripemd128_update(&rctx, array, 0x71c);
ampheck_ripemd128_finish(&rctx, wtmp + wpos);
wpos += 16;
memcpy(wtmp + wpos, s+6, 10);
wpos += 10;
break;
}
case 3:
{
tiger_ctx tctx;
rhash_tiger_init(&tctx);
rhash_tiger_update(&tctx,array,0x71c);
rhash_tiger_final(&tctx,wtmp);
wpos += 24;
memcpy(wtmp + wpos, s, 10);
wpos += 10;
struct ampheck_ripemd128 rctx;
ampheck_ripemd128_init(&rctx);
ampheck_ripemd128_update(&rctx, array_1, 0x7f3);
ampheck_ripemd128_finish(&rctx, wtmp + wpos);
wpos += 16;
memcpy(wtmp + wpos, s+10, 6);
wpos += 6;
break;
}
case 4:
{
tiger_ctx tctx;
rhash_tiger_init(&tctx);
rhash_tiger_update(&tctx,array_1,0x7f3);
rhash_tiger_final(&tctx,wtmp);
wpos += 24;
memcpy(wtmp + wpos, s, 8);
wpos += 8;
sha1_ctx sctx;
rhash_sha1_init(&sctx);
rhash_sha1_update(&sctx,array,0x71c);
rhash_sha1_final(&sctx,wtmp + wpos);
wpos += 20;
memcpy(wtmp + wpos, s+8, 8);
wpos += 8;
break;
}
default:
{
return NULL;
}
}
whirlpool_ctx w;
static unsigned char digest[100];
rhash_whirlpool_init(&w);
rhash_whirlpool_update(&w, wtmp, wpos);
rhash_whirlpool_final(&w, digest);
char tbuf[10];
for (i = 0; i<64; ++i)
{
sprintf(tbuf, "%02x", digest[i]);
buf[2*i] = tbuf[0];
buf[2*i+1] = tbuf[1];
}
return buf;
}
