APU_DECLARE(void) apr_siphash48_auth(unsigned char out[APR_SIPHASH_DSIZE],
const void *src, apr_size_t len,
const unsigned char key[APR_SIPHASH_KSIZE])
{
apr_uint64_t h;
h = apr_siphash48(src, len, key);
U64TO8_LE(out, h);
}
int crypto_shorthash(unsigned char *out,const unsigned char *in,uint64_t inlen,const unsigned char *k)
{
/* "somepseudorandomlygeneratedbytes" */
u64 v0 = 0x736f6d6570736575ULL;
u64 v1 = 0x646f72616e646f6dULL;
u64 v2 = 0x6c7967656e657261ULL;
u64 v3 = 0x7465646279746573ULL;
u64 b;
u64 k0 = U8TO64_LE( k );
u64 k1 = U8TO64_LE( k + 8 );
u64 m;
const u8 *end = in + inlen - ( inlen % sizeof( u64 ) );
const int left = inlen & 7;
b = ( ( u64 )inlen ) << 56;
v3 ^= k1;
v2 ^= k0;
v1 ^= k1;
v0 ^= k0;
for ( ; in != end; in += 8 )
{
m = U8TO64_LE( in );
v3 ^= m;
SIPROUND;
SIPROUND;
v0 ^= m;
}
switch( left )
{
case 7: b |= ( ( u64 )in[ 6] ) << 48;
case 6: b |= ( ( u64 )in[ 5] ) << 40;
case 5: b |= ( ( u64 )in[ 4] ) << 32;
case 4: b |= ( ( u64 )in[ 3] ) << 24;
case 3: b |= ( ( u64 )in[ 2] ) << 16;
case 2: b |= ( ( u64 )in[ 1] ) << 8;
case 1: b |= ( ( u64 )in[ 0] ); break;
case 0: break;
}
v3 ^= b;
SIPROUND;
SIPROUND;
v0 ^= b;
v2 ^= 0xff;
SIPROUND;
SIPROUND;
SIPROUND;
SIPROUND;
b = v0 ^ v1 ^ v2 ^ v3;
U64TO8_LE( out, b );
return 0;
}
static void
scrypt_hash_finish(scrypt_hash_state *S, uint8_t *hash) {
size_t i;
S->buffer[S->leftover] = 0x01;
memset(S->buffer + (S->leftover + 1), 0, SCRYPT_HASH_BLOCK_SIZE - (S->leftover + 1));
S->buffer[SCRYPT_HASH_BLOCK_SIZE - 1] |= 0x80;
keccak_block(S, S->buffer);
for (i = 0; i < SCRYPT_HASH_DIGEST_SIZE; i += 8) {
U64TO8_LE(&hash[i], S->state[i / 8]);
}
}
static int siphash(const uint8_t *in, const size_t inlen, const uint8_t *k,
uint8_t *out, const size_t outlen) {
assert((outlen == 8) || (outlen == 16));
uint64_t v0 = 0x736f6d6570736575ULL;
uint64_t v1 = 0x646f72616e646f6dULL;
uint64_t v2 = 0x6c7967656e657261ULL;
uint64_t v3 = 0x7465646279746573ULL;
uint64_t k0 = U8TO64_LE(k);
uint64_t k1 = U8TO64_LE(k + 8);
uint64_t m;
int i;
const uint8_t *end = in + inlen - (inlen % sizeof(uint64_t));
const int left = inlen & 7;
uint64_t b = ((uint64_t)inlen) << 56;
v3 ^= k1;
v2 ^= k0;
v1 ^= k1;
v0 ^= k0;
if (outlen == 16)
v1 ^= 0xee;
for (; in != end; in += 8) {
m = U8TO64_LE(in);
v3 ^= m;
TRACE;
for (i = 0; i < cROUNDS; ++i)
SIPROUND;
v0 ^= m;
}
switch (left) {
case 7:
b |= ((uint64_t)in[6]) << 48;
case 6:
b |= ((uint64_t)in[5]) << 40;
case 5:
b |= ((uint64_t)in[4]) << 32;
case 4:
b |= ((uint64_t)in[3]) << 24;
case 3:
b |= ((uint64_t)in[2]) << 16;
case 2:
b |= ((uint64_t)in[1]) << 8;
case 1:
b |= ((uint64_t)in[0]);
break;
case 0:
break;
}
v3 ^= b;
TRACE;
for (i = 0; i < cROUNDS; ++i)
SIPROUND;
v0 ^= b;
if (outlen == 16)
v2 ^= 0xee;
else
v2 ^= 0xff;
TRACE;
for (i = 0; i < dROUNDS; ++i)
SIPROUND;
b = v0 ^ v1 ^ v2 ^ v3;
U64TO8_LE(out, b);
if (outlen == 8)
return 0;
v1 ^= 0xdd;
TRACE;
for (i = 0; i < dROUNDS; ++i)
SIPROUND;
b = v0 ^ v1 ^ v2 ^ v3;
U64TO8_LE(out + 8, b);
return 0;
}
int siphash( uint8_t *out, const uint8_t *in, uint64_t inlen, const uint8_t *k )
{
/* "somepseudorandomlygeneratedbytes" */
uint64_t v0 = 0x736f6d6570736575ULL;
uint64_t v1 = 0x646f72616e646f6dULL;
uint64_t v2 = 0x6c7967656e657261ULL;
uint64_t v3 = 0x7465646279746573ULL;
uint64_t b;
uint64_t k0 = U8TO64_LE( k );
uint64_t k1 = U8TO64_LE( k + 8 );
uint64_t m;
int i;
const uint8_t *end = in + inlen - ( inlen % sizeof( uint64_t ) );
const int left = inlen & 7;
b = ( ( uint64_t )inlen ) << 56;
v3 ^= k1;
v2 ^= k0;
v1 ^= k1;
v0 ^= k0;
#ifdef DOUBLE
v1 ^= 0xee;
#endif
for ( ; in != end; in += 8 )
{
m = U8TO64_LE( in );
v3 ^= m;
TRACE;
for( i=0; i<cROUNDS; ++i ) SIPROUND;
v0 ^= m;
}
switch( left )
{
case 7: b |= ( ( uint64_t )in[ 6] ) << 48;
case 6: b |= ( ( uint64_t )in[ 5] ) << 40;
case 5: b |= ( ( uint64_t )in[ 4] ) << 32;
case 4: b |= ( ( uint64_t )in[ 3] ) << 24;
case 3: b |= ( ( uint64_t )in[ 2] ) << 16;
case 2: b |= ( ( uint64_t )in[ 1] ) << 8;
case 1: b |= ( ( uint64_t )in[ 0] ); break;
case 0: break;
}
v3 ^= b;
TRACE;
for( i=0; i<cROUNDS; ++i ) SIPROUND;
v0 ^= b;
#ifndef DOUBLE
v2 ^= 0xff;
#else
v2 ^= 0xee;
#endif
TRACE;
for( i=0; i<dROUNDS; ++i ) SIPROUND;
b = v0 ^ v1 ^ v2 ^ v3;
U64TO8_LE( out, b );
#ifdef DOUBLE
v1 ^= 0xdd;
TRACE;
for( i=0; i<dROUNDS; ++i ) SIPROUND;
b = v0 ^ v1 ^ v2 ^ v3;
U64TO8_LE( out+8, b );
#endif
return 0;
}
