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cryptonite-lite for for portable slow-hash

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Javier Smooth
2015-07-27 04:02:06 -07:00
parent a98edc5f20
commit 0474a51fd3
1 changed files with 8 additions and 8 deletions
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src/crypto/slow-hash.c
+8 -8
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@@ -565,7 +565,7 @@ union cn_slow_hash_state {
};
#pragma pack(pop)
void cn_slow_hash(const void *data, size_t length, char *hash) {
void cn_slow_hash(const void *data, size_t length, char *hash, int light) {
uint8_t long_state[MEMORY];
union cn_slow_hash_state state;
uint8_t text[INIT_SIZE_BYTE];
@@ -583,7 +583,7 @@ void cn_slow_hash(const void *data, size_t length, char *hash) {
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 (i = 0; i < MEMORY / (light?2:1) / 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);
}
@@ -601,29 +601,29 @@ void cn_slow_hash(const void *data, size_t length, char *hash) {
* next address <-+
*/
/* Iteration 1 */
j = e2i(a, MEMORY / AES_BLOCK_SIZE);
j = e2i(a, MEMORY / (light?2:1) / AES_BLOCK_SIZE);
copy_block(c, &long_state[j * AES_BLOCK_SIZE]);
aesb_single_round(c, c, a);
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));
assert(j == e2i(a, MEMORY / (light?2:1) / AES_BLOCK_SIZE);
swap_blocks(a, b);
/* Iteration 2 */
j = e2i(a, MEMORY / AES_BLOCK_SIZE);
j = e2i(a, MEMORY / AES_BLOCK_SIZE,light);
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));
assert(j == e2i(a, MEMORY / (light?2:1) / 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 (i = 0; i < MEMORY / (light?2:1) / 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);