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ringct: remove spurious copies

This commit is contained in:
moneromooo-monero 2016-08-27 15:04:44 +01:00
parent 16732a85d7
commit 5d38206fcc
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
1 changed files with 4 additions and 24 deletions
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28
src/ringct/rctOps.cpp
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@ -334,12 +334,7 @@ namespace rct {
//be careful these are also in crypto namespace
//cn_fast_hash for arbitrary multiples of 32 bytes
void cn_fast_hash(key &hash, const void * data, const std::size_t l) {
uint8_t md2[32];
int j = 0;
keccak((uint8_t *)data, l, md2, 32);
for (j = 0; j < 32; j++) {
hash[j] = (unsigned char)md2[j];
}
keccak((uint8_t *)data, l, hash.bytes, 32);
}
void hash_to_scalar(key &hash, const void * data, const std::size_t l) {
@ -349,12 +344,7 @@ namespace rct {
//cn_fast_hash for a 32 byte key
void cn_fast_hash(key & hash, const key & in) {
uint8_t md2[32];
int j = 0;
keccak((uint8_t *)in.bytes, 32, md2, 32);
for (j = 0; j < 32; j++) {
hash[j] = (unsigned char)md2[j];
}
keccak((uint8_t *)in.bytes, 32, hash.bytes, 32);
}
void hash_to_scalar(key & hash, const key & in) {
@ -364,13 +354,8 @@ namespace rct {
//cn_fast_hash for a 32 byte key
key cn_fast_hash(const key & in) {
uint8_t md2[32];
int j = 0;
key hash;
keccak((uint8_t *)in.bytes, 32, md2, 32);
for (j = 0; j < 32; j++) {
hash[j] = (unsigned char)md2[j];
}
keccak((uint8_t *)in.bytes, 32, hash.bytes, 32);
return hash;
}
@ -382,13 +367,8 @@ namespace rct {
//cn_fast_hash for a 128 byte unsigned char
key cn_fast_hash128(const void * in) {
uint8_t md2[32];
int j = 0;
key hash;
keccak((uint8_t *)in, 128, md2, 32);
for (j = 0; j < 32; j++) {
hash[j] = (unsigned char)md2[j];
}
keccak((uint8_t *)in, 128, hash.bytes, 32);
return hash;
}