diff options
Diffstat (limited to 'Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c')
| -rw-r--r-- | Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c | 98 |
1 files changed, 54 insertions, 44 deletions
diff --git a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c index ae9b95065..5009d52f5 100644 --- a/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c +++ b/Godeps/_workspace/src/github.com/ethereum/ethash/src/libethash/internal.c @@ -50,14 +50,14 @@ uint64_t ethash_get_cachesize(const uint32_t block_number) { // Follows Sergio's "STRICT MEMORY HARD HASHING FUNCTIONS" (2014) // https://bitslog.files.wordpress.com/2013/12/memohash-v0-3.pdf // SeqMemoHash(s, R, N) -void static ethash_compute_cache_nodes( - node *const nodes, - ethash_params const *params, - const uint8_t seed[32]) { +void static ethash_compute_cache_nodes(node *const nodes, + ethash_params const *params, + ethash_blockhash_t const* seed) +{ assert((params->cache_size % sizeof(node)) == 0); uint32_t const num_nodes = (uint32_t) (params->cache_size / sizeof(node)); - SHA3_512(nodes[0].bytes, seed, 32); + SHA3_512(nodes[0].bytes, (uint8_t*)seed, 32); for (unsigned i = 1; i != num_nodes; ++i) { SHA3_512(nodes[i].bytes, nodes[i - 1].bytes, 64); @@ -84,20 +84,19 @@ void static ethash_compute_cache_nodes( #endif } -void ethash_mkcache( - ethash_cache *cache, - ethash_params const *params, - const uint8_t seed[32]) { +void ethash_mkcache(ethash_cache *cache, + ethash_params const *params, + ethash_blockhash_t const* seed) +{ node *nodes = (node *) cache->mem; ethash_compute_cache_nodes(nodes, params, seed); } -void ethash_calculate_dag_item( - node *const ret, - const unsigned node_index, - const struct ethash_params *params, - const struct ethash_cache *cache) { - +void ethash_calculate_dag_item(node *const ret, + const unsigned node_index, + const struct ethash_params *params, + const struct ethash_cache *cache) +{ uint32_t num_parent_nodes = (uint32_t) (params->cache_size / sizeof(node)); node const *cache_nodes = (node const *) cache->mem; node const *init = &cache_nodes[node_index % num_parent_nodes]; @@ -161,13 +160,13 @@ void ethash_compute_full_data( } } -static void ethash_hash( - ethash_return_value *ret, - node const *full_nodes, - ethash_cache const *cache, - ethash_params const *params, - const uint8_t header_hash[32], - const uint64_t nonce) { +static void ethash_hash(ethash_return_value *ret, + node const *full_nodes, + ethash_cache const *cache, + ethash_params const *params, + ethash_blockhash_t const *header_hash, + const uint64_t nonce) +{ assert((params->full_size % MIX_WORDS) == 0); @@ -251,16 +250,16 @@ static void ethash_hash( } #endif - memcpy(ret->mix_hash, mix->bytes, 32); + memcpy(&ret->mix_hash, mix->bytes, 32); // final Keccak hash - SHA3_256(ret->result, s_mix->bytes, 64 + 32); // Keccak-256(s + compressed_mix) + SHA3_256(&ret->result, s_mix->bytes, 64 + 32); // Keccak-256(s + compressed_mix) } -void ethash_quick_hash( - uint8_t return_hash[32], - const uint8_t header_hash[32], - const uint64_t nonce, - const uint8_t mix_hash[32]) { +void ethash_quick_hash(ethash_blockhash_t *return_hash, + ethash_blockhash_t const *header_hash, + const uint64_t nonce, + ethash_blockhash_t const *mix_hash) +{ uint8_t buf[64 + 32]; memcpy(buf, header_hash, 32); @@ -273,28 +272,39 @@ void ethash_quick_hash( SHA3_256(return_hash, buf, 64 + 32); } -void ethash_get_seedhash(uint8_t seedhash[32], const uint32_t block_number) { - memset(seedhash, 0, 32); +void ethash_get_seedhash(ethash_blockhash_t *seedhash, const uint32_t block_number) +{ + ethash_blockhash_reset(seedhash); const uint32_t epochs = block_number / EPOCH_LENGTH; for (uint32_t i = 0; i < epochs; ++i) - SHA3_256(seedhash, seedhash, 32); + SHA3_256(seedhash, (uint8_t*)seedhash, 32); } -int ethash_preliminary_check_boundary( - const uint8_t header_hash[32], - const uint64_t nonce, - const uint8_t mix_hash[32], - const uint8_t difficulty[32]) { +int ethash_quick_check_difficulty(ethash_blockhash_t const *header_hash, + const uint64_t nonce, + ethash_blockhash_t const *mix_hash, + ethash_blockhash_t const *difficulty) +{ - uint8_t return_hash[32]; - ethash_quick_hash(return_hash, header_hash, nonce, mix_hash); - return ethash_leq_be256(return_hash, difficulty); + ethash_blockhash_t return_hash; + ethash_quick_hash(&return_hash, header_hash, nonce, mix_hash); + return ethash_check_difficulty(&return_hash, difficulty); } -void ethash_full(ethash_return_value *ret, void const *full_mem, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) { - ethash_hash(ret, (node const *) full_mem, NULL, params, previous_hash, nonce); +void ethash_full(ethash_return_value *ret, + void const *full_mem, + ethash_params const *params, + ethash_blockhash_t const *header_hash, + const uint64_t nonce) +{ + ethash_hash(ret, (node const *) full_mem, NULL, params, header_hash, nonce); } -void ethash_light(ethash_return_value *ret, ethash_cache const *cache, ethash_params const *params, const uint8_t previous_hash[32], const uint64_t nonce) { - ethash_hash(ret, NULL, cache, params, previous_hash, nonce); +void ethash_light(ethash_return_value *ret, + ethash_cache const *cache, + ethash_params const *params, + ethash_blockhash_t const *header_hash, + const uint64_t nonce) +{ + ethash_hash(ret, NULL, cache, params, header_hash, nonce); } |