EXPORT_SYM int ripemd160_digest(const hash_state *hs, uint8_t digest[RIPEMD160_DIGEST_SIZE])
{
hash_state tmp;
unsigned i;
if (NULL==hs || digest==NULL)
return ERR_NULL;
tmp = *hs;
/* Append the padding */
tmp.buf[tmp.bufpos++] = 0x80;
if (tmp.bufpos > 56) {
tmp.bufpos = 64;
ripemd160_compress(&tmp);
}
/* Append the length */
STORE_U64_LITTLE(&tmp.buf[sizeof tmp.buf - 8], tmp.length);
tmp.bufpos = 64;
ripemd160_compress(&tmp);
/* Copy the final state into the output buffer */
assert(RIPEMD160_DIGEST_SIZE == sizeof tmp.h);
for (i=0; i<5; i++)
STORE_U32_LITTLE(digest + i*sizeof tmp.h[0], tmp.h[i]);
return 0;
}
EXPORT_SYM int md4_digest(const hash_state *hs, uint8_t digest[16])
{
static uint8_t s[8];
uint32_t padlen;
hash_state temp;
unsigned i;
uint64_t bitlen;
static const uint8_t padding[64] = {
0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
if (NULL==hs || NULL==digest)
return ERR_NULL;
temp = *hs;
bitlen = temp.bitlen; /* Save current length */
padlen= (56<=hs->count) ? 56-hs->count+64: 56-hs->count;
md4_update(&temp, padding, padlen);
for (i=0; i<8; i++)
s[i] = (uint8_t)(bitlen >> (i*8));
md4_update(&temp, s, 8);
STORE_U32_LITTLE(&digest[0], temp.A);
STORE_U32_LITTLE(&digest[4], temp.B);
STORE_U32_LITTLE(&digest[8], temp.C);
STORE_U32_LITTLE(&digest[12], temp.D);
return 0;
}
static void _salsa20_block(unsigned rounds, uint32_t *input, uint8_t *output)
{
unsigned x0, x1, x2, x3, x4, x5, x6, x7;
unsigned x8, x9, x10, x11, x12, x13, x14, x15;
unsigned i;
x0 = input[0];
x1 = input[1];
x2 = input[2];
x3 = input[3];
x4 = input[4];
x5 = input[5];
x6 = input[6];
x7 = input[7];
x8 = input[8];
x9 = input[9];
x10 = input[10];
x11 = input[11];
x12 = input[12];
x13 = input[13];
x14 = input[14];
x15 = input[15];
for (i = rounds; i > 0; i -= 2) {
/* Column round */
x4 = XOR( x4, ROTL32( x0 + x12, 7));
x8 = XOR( x8, ROTL32( x4 + x0, 9));
x12 = XOR(x12, ROTL32( x8 + x4, 13));
x0 = XOR( x0, ROTL32(x12 + x8, 18));
x9 = XOR( x9, ROTL32( x5 + x1, 7));
x13 = XOR(x13, ROTL32( x9 + x5, 9));
x1 = XOR( x1, ROTL32(x13 + x9, 13));
x5 = XOR( x5, ROTL32( x1 + x13, 18));
x14 = XOR(x14, ROTL32(x10 + x6, 7));
x2 = XOR( x2, ROTL32(x14 + x10, 9));
x6 = XOR( x6, ROTL32( x2 + x14, 13));
x10 = XOR(x10, ROTL32( x6 + x2, 18));
x3 = XOR( x3, ROTL32(x15 + x11, 7));
x7 = XOR( x7, ROTL32( x3 + x15, 9));
x11 = XOR(x11, ROTL32( x7 + x3, 13));
x15 = XOR(x15, ROTL32(x11 + x7, 18));
/* Row round */
x1 = XOR( x1, ROTL32( x0 + x3, 7));
x2 = XOR( x2, ROTL32( x1 + x0, 9));
x3 = XOR( x3, ROTL32( x2 + x1, 13));
x0 = XOR( x0, ROTL32( x3 + x2, 18));
x6 = XOR( x6, ROTL32( x5 + x4, 7));
x7 = XOR( x7, ROTL32( x6 + x5, 9));
x4 = XOR( x4, ROTL32( x7 + x6, 13));
x5 = XOR( x5, ROTL32( x4 + x7, 18));
x11 = XOR(x11, ROTL32(x10 + x9, 7));
x8 = XOR( x8, ROTL32(x11 + x10, 9));
x9 = XOR( x9, ROTL32( x8 + x11, 13));
x10 = XOR(x10, ROTL32( x9 + x8, 18));
x12 = XOR(x12, ROTL32(x15 + x14, 7));
x13 = XOR(x13, ROTL32(x12 + x15, 9));
x14 = XOR(x14, ROTL32(x13 + x12, 13));
x15 = XOR(x15, ROTL32(x14 + x13, 18));
}
x0 = x0 + input[0];
x1 = x1 + input[1];
x2 = x2 + input[2];
x3 = x3 + input[3];
x4 = x4 + input[4];
x5 = x5 + input[5];
x6 = x6 + input[6];
x7 = x7 + input[7];
x8 = x8 + input[8];
x9 = x9 + input[9];
x10 = x10 + input[10];
x11 = x11 + input[11];
x12 = x12 + input[12];
x13 = x13 + input[13];
x14 = x14 + input[14];
x15 = x15 + input[15];
STORE_U32_LITTLE (output + 0, x0);
STORE_U32_LITTLE (output + 4, x1);
STORE_U32_LITTLE (output + 8, x2);
STORE_U32_LITTLE (output + 12, x3);
STORE_U32_LITTLE (output + 16, x4);
STORE_U32_LITTLE (output + 20, x5);
STORE_U32_LITTLE (output + 24, x6);
STORE_U32_LITTLE (output + 28, x7);
STORE_U32_LITTLE (output + 32, x8);
STORE_U32_LITTLE (output + 36, x9);
STORE_U32_LITTLE (output + 40, x10);
STORE_U32_LITTLE (output + 44, x11);
STORE_U32_LITTLE (output + 48, x12);
STORE_U32_LITTLE (output + 52, x13);
STORE_U32_LITTLE (output + 56, x14);
STORE_U32_LITTLE (output + 60, x15);
/* Increment block counter */
input[8] = input[8] + 1;
if (!input[8]) {
input[9] = input[9] + 1;
/* stopping at 2^70 bytes per nonce is user's responsibility */
}
}
