ringct: remove spurious copies
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16732a85d7
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5d38206fcc
1 changed files with 4 additions and 24 deletions
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@ -334,12 +334,7 @@ namespace rct {
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//be careful these are also in crypto namespace
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//cn_fast_hash for arbitrary multiples of 32 bytes
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void cn_fast_hash(key &hash, const void * data, const std::size_t l) {
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uint8_t md2[32];
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int j = 0;
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keccak((uint8_t *)data, l, md2, 32);
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for (j = 0; j < 32; j++) {
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hash[j] = (unsigned char)md2[j];
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}
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keccak((uint8_t *)data, l, hash.bytes, 32);
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}
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void hash_to_scalar(key &hash, const void * data, const std::size_t l) {
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@ -349,12 +344,7 @@ namespace rct {
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//cn_fast_hash for a 32 byte key
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void cn_fast_hash(key & hash, const key & in) {
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uint8_t md2[32];
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int j = 0;
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keccak((uint8_t *)in.bytes, 32, md2, 32);
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for (j = 0; j < 32; j++) {
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hash[j] = (unsigned char)md2[j];
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}
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keccak((uint8_t *)in.bytes, 32, hash.bytes, 32);
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}
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void hash_to_scalar(key & hash, const key & in) {
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@ -364,13 +354,8 @@ namespace rct {
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//cn_fast_hash for a 32 byte key
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key cn_fast_hash(const key & in) {
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uint8_t md2[32];
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int j = 0;
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key hash;
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keccak((uint8_t *)in.bytes, 32, md2, 32);
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for (j = 0; j < 32; j++) {
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hash[j] = (unsigned char)md2[j];
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}
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keccak((uint8_t *)in.bytes, 32, hash.bytes, 32);
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return hash;
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}
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@ -382,13 +367,8 @@ namespace rct {
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//cn_fast_hash for a 128 byte unsigned char
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key cn_fast_hash128(const void * in) {
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uint8_t md2[32];
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int j = 0;
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key hash;
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keccak((uint8_t *)in, 128, md2, 32);
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for (j = 0; j < 32; j++) {
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hash[j] = (unsigned char)md2[j];
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}
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keccak((uint8_t *)in, 128, hash.bytes, 32);
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return hash;
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}
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