mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-20 21:38:26 +00:00
97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/**
|
|
* Copyright (c) 2017 Saleem Rashid
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
|
|
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "hasher.h"
|
|
|
|
void hasher_Init(Hasher *hasher, HasherType type) {
|
|
hasher->type = type;
|
|
|
|
switch (hasher->type) {
|
|
case HASHER_SHA2:
|
|
case HASHER_SHA2D:
|
|
sha256_Init(&hasher->ctx.sha2);
|
|
break;
|
|
case HASHER_BLAKE:
|
|
case HASHER_BLAKED:
|
|
blake256_Init(&hasher->ctx.blake);
|
|
break;
|
|
case HASHER_GROESTLD_TRUNC:
|
|
groestl512_Init(&hasher->ctx.groestl);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void hasher_Reset(Hasher *hasher) {
|
|
hasher_Init(hasher, hasher->type);
|
|
}
|
|
|
|
void hasher_Update(Hasher *hasher, const uint8_t *data, size_t length) {
|
|
switch (hasher->type) {
|
|
case HASHER_SHA2:
|
|
case HASHER_SHA2D:
|
|
sha256_Update(&hasher->ctx.sha2, data, length);
|
|
break;
|
|
case HASHER_BLAKE:
|
|
case HASHER_BLAKED:
|
|
blake256_Update(&hasher->ctx.blake, data, length);
|
|
break;
|
|
case HASHER_GROESTLD_TRUNC:
|
|
groestl512_Update(&hasher->ctx.groestl, data, length);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void hasher_Final(Hasher *hasher, uint8_t hash[HASHER_DIGEST_LENGTH]) {
|
|
switch (hasher->type) {
|
|
case HASHER_SHA2:
|
|
case HASHER_SHA2D:
|
|
sha256_Final(&hasher->ctx.sha2, hash);
|
|
break;
|
|
case HASHER_BLAKE:
|
|
case HASHER_BLAKED:
|
|
blake256_Final(&hasher->ctx.blake, hash);
|
|
break;
|
|
case HASHER_GROESTLD_TRUNC:
|
|
groestl512_DoubleTrunc(&hasher->ctx.groestl, hash);
|
|
return;
|
|
}
|
|
|
|
switch (hasher->type) {
|
|
case HASHER_SHA2D:
|
|
hasher_Raw(HASHER_SHA2, hash, HASHER_DIGEST_LENGTH, hash);
|
|
break;
|
|
case HASHER_BLAKED:
|
|
hasher_Raw(HASHER_BLAKE, hash, HASHER_DIGEST_LENGTH, hash);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void hasher_Raw(HasherType type, const uint8_t *data, size_t length, uint8_t hash[HASHER_DIGEST_LENGTH]) {
|
|
Hasher hasher;
|
|
|
|
hasher_Init(&hasher, type);
|
|
hasher_Update(&hasher, data, length);
|
|
hasher_Final(&hasher, hash);
|
|
}
|