void cryptonight_hash(const char* input, char* output, uint32_t len, int variant, uint64_t height) {
struct cryptonight_ctx *ctx = alloca(sizeof(struct cryptonight_ctx));
hash_process(&ctx->state.hs, (const uint8_t*) input, len);
memcpy(ctx->text, ctx->state.init, INIT_SIZE_BYTE);
memcpy(ctx->aes_key, ctx->state.hs.b, AES_KEY_SIZE);
ctx->aes_ctx = (oaes_ctx*) oaes_alloc();
size_t i, j;
VARIANT1_INIT();
VARIANT2_INIT(ctx->b, ctx->state);
VARIANT4_RANDOM_MATH_INIT(ctx->state);
oaes_key_import_data(ctx->aes_ctx, ctx->aes_key, AES_KEY_SIZE);
for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) {
for (j = 0; j < INIT_SIZE_BLK; j++) {
aesb_pseudo_round(&ctx->text[AES_BLOCK_SIZE * j],
&ctx->text[AES_BLOCK_SIZE * j],
ctx->aes_ctx->key->exp_data);
}
memcpy(&ctx->long_state[i * INIT_SIZE_BYTE], ctx->text, INIT_SIZE_BYTE);
}
for (i = 0; i < 16; i++) {
ctx->a[i] = ctx->state.k[i] ^ ctx->state.k[32 + i];
ctx->b[i] = ctx->state.k[16 + i] ^ ctx->state.k[48 + i];
}
for (i = 0; i < ITER / 2; i++) {
/* Dependency chain: address -> read value ------+
* written value <-+ hard function (AES or MUL) <+
* next address <-+
*/
/* Iteration 1 */
j = e2i(ctx->a);
aesb_single_round(&ctx->long_state[j * AES_BLOCK_SIZE], ctx->c, ctx->a);
VARIANT2_SHUFFLE_ADD(ctx->long_state, j * AES_BLOCK_SIZE, ctx->a, ctx->b, ctx->c);
xor_blocks_dst(ctx->c, ctx->b, &ctx->long_state[j * AES_BLOCK_SIZE]);
VARIANT1_1((uint8_t*)&ctx->long_state[j * AES_BLOCK_SIZE]);
/* Iteration 2 */
j = e2i(ctx->c);
uint64_t* dst = (uint64_t*)&ctx->long_state[j * AES_BLOCK_SIZE];
uint64_t t[2];
t[0] = dst[0];
t[1] = dst[1];
VARIANT2_INTEGER_MATH(t, ctx->c);
copy_block(ctx->a1, ctx->a);
VARIANT4_RANDOM_MATH(ctx->a, t, r, ctx->b, ctx->b + AES_BLOCK_SIZE);
uint64_t hi;
uint64_t lo = mul128(((uint64_t*)ctx->c)[0], t[0], &hi);
VARIANT2_2();
VARIANT2_SHUFFLE_ADD(ctx->long_state, j * AES_BLOCK_SIZE, ctx->a1, ctx->b, ctx->c);
((uint64_t*)ctx->a)[0] += hi;
((uint64_t*)ctx->a)[1] += lo;
dst[0] = ((uint64_t*)ctx->a)[0];
dst[1] = ((uint64_t*)ctx->a)[1];
((uint64_t*)ctx->a)[0] ^= t[0];
((uint64_t*)ctx->a)[1] ^= t[1];
VARIANT1_2((uint8_t*)&ctx->long_state[j * AES_BLOCK_SIZE]);
copy_block(ctx->b + AES_BLOCK_SIZE, ctx->b);
copy_block(ctx->b, ctx->c);
}
memcpy(ctx->text, ctx->state.init, INIT_SIZE_BYTE);
oaes_key_import_data(ctx->aes_ctx, &ctx->state.hs.b[32], AES_KEY_SIZE);
for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) {
for (j = 0; j < INIT_SIZE_BLK; j++) {
xor_blocks(&ctx->text[j * AES_BLOCK_SIZE],
&ctx->long_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]);
aesb_pseudo_round(&ctx->text[j * AES_BLOCK_SIZE],
&ctx->text[j * AES_BLOCK_SIZE],
ctx->aes_ctx->key->exp_data);
}
}
memcpy(ctx->state.init, ctx->text, INIT_SIZE_BYTE);
hash_permutation(&ctx->state.hs);
/*memcpy(hash, &state, 32);*/
extra_hashes[ctx->state.hs.b[0] & 3](&ctx->state, 200, output);
oaes_free((OAES_CTX **) &ctx->aes_ctx);
}
void cn_slow_hash(const void *data, size_t length, char *hash) {
uint8_t long_state[MEMORY];
union cn_slow_hash_state state;
uint8_t text[INIT_SIZE_BYTE];
uint8_t a[AES_BLOCK_SIZE];
uint8_t b[AES_BLOCK_SIZE];
uint8_t c[AES_BLOCK_SIZE];
uint8_t d[AES_BLOCK_SIZE];
size_t i, j;
uint8_t aes_key[AES_KEY_SIZE];
oaes_ctx *aes_ctx;
hash_process(&state.hs, data, length);
memcpy(text, state.init, INIT_SIZE_BYTE);
memcpy(aes_key, state.hs.b, AES_KEY_SIZE);
aes_ctx = (oaes_ctx *) oaes_alloc();
oaes_key_import_data(aes_ctx, aes_key, AES_KEY_SIZE);
for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) {
for (j = 0; j < INIT_SIZE_BLK; j++) {
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
}
memcpy(&long_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
}
for (i = 0; i < 16; i++) {
a[i] = state.k[ i] ^ state.k[32 + i];
b[i] = state.k[16 + i] ^ state.k[48 + i];
}
for (i = 0; i < ITER / 2; i++) {
/* Dependency chain: address -> read value ------+
* written value <-+ hard function (AES or MUL) <+
* next address <-+
*/
/* Iteration 1 */
j = e2i(a, MEMORY / AES_BLOCK_SIZE);
copy_block(c, &long_state[j * AES_BLOCK_SIZE]);
aesb_single_round(c, c, a);
xor_blocks(b, c);
swap_blocks(b, c);
copy_block(&long_state[j * AES_BLOCK_SIZE], c);
//assert(j == e2i(a, MEMORY / AES_BLOCK_SIZE));
swap_blocks(a, b);
/* Iteration 2 */
j = e2i(a, MEMORY / AES_BLOCK_SIZE);
copy_block(c, &long_state[j * AES_BLOCK_SIZE]);
mul(a, c, d);
sum_half_blocks(b, d);
swap_blocks(b, c);
xor_blocks(b, c);
copy_block(&long_state[j * AES_BLOCK_SIZE], c);
//assert(j == e2i(a, MEMORY / AES_BLOCK_SIZE));
swap_blocks(a, b);
}
memcpy(text, state.init, INIT_SIZE_BYTE);
oaes_key_import_data(aes_ctx, &state.hs.b[32], AES_KEY_SIZE);
for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) {
for (j = 0; j < INIT_SIZE_BLK; j++) {
xor_blocks(&text[j * AES_BLOCK_SIZE], &long_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]);
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
}
}
memcpy(state.init, text, INIT_SIZE_BYTE);
hash_permutation(&state.hs);
extra_hashes[state.hs.b[0] & 3](&state, 200, hash);
oaes_free((OAES_CTX **) &aes_ctx);
}
