Line data    Source code

       1             : /**
       2             :  * The MIT License (MIT)
       3             :  *
       4             :  * Copyright (c) 2021 RSK Labs Ltd
       5             :  *
       6             :  * Permission is hereby granted, free of charge, to any person obtaining a copy
       7             :  * of this software and associated documentation files (the "Software"), to
       8             :  * deal in the Software without restriction, including without limitation the
       9             :  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
      10             :  * sell copies of the Software, and to permit persons to whom the Software is
      11             :  * furnished to do so, subject to the following conditions:
      12             :  *
      13             :  * The above copyright notice and this permission notice shall be included in
      14             :  * all copies or substantial portions of the Software.
      15             :  *
      16             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
      17             :  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      18             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
      19             :  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      20             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      21             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
      22             :  * IN THE SOFTWARE.
      23             :  */
      24             : 
      25             : #include "hal/hash.h"
      26             : #include "os.h"
      27             : 
      28             : // *** sha256 ***
      29           1 : bool hash_sha256_init(hash_sha256_ctx_t* ctx) {
      30           1 :     cx_sha256_init(ctx);
      31           1 :     return true;
      32             : }
      33             : 
      34           1 : bool hash_sha256_update(hash_sha256_ctx_t* ctx,
      35             :                         const uint8_t* data,
      36             :                         size_t len) {
      37           1 :     cx_hash((cx_hash_t*)(ctx), 0, (unsigned char*)data, len, NULL);
      38           1 :     return true;
      39             : }
      40             : 
      41           1 : bool hash_sha256_final(hash_sha256_ctx_t* ctx, uint8_t* out_hash) {
      42           1 :     cx_hash((cx_hash_t*)(ctx), CX_LAST, NULL, 0, out_hash);
      43           1 :     return true;
      44             : }
      45             : 
      46             : // *** sha256 with midstate support ***
      47           1 : bool hash_sha256_ms_init(hash_sha256_ms_ctx_t* ctx) {
      48           1 :     sha256_init(ctx);
      49           1 :     return true;
      50             : }
      51             : 
      52           1 : bool hash_sha256_ms_midstate(hash_sha256_ms_ctx_t* ctx, uint8_t* midstate) {
      53           1 :     sha256_midstate(ctx, midstate);
      54           1 :     return true;
      55             : }
      56             : 
      57           1 : bool hash_sha256_ms_update(hash_sha256_ms_ctx_t* ctx,
      58             :                            const uint8_t* data,
      59             :                            size_t len) {
      60           1 :     sha256_update(ctx, data, len);
      61           1 :     return true;
      62             : }
      63             : 
      64           1 : bool hash_sha256_ms_final(hash_sha256_ms_ctx_t* ctx, uint8_t* out_hash) {
      65           1 :     sha256_final(ctx, out_hash);
      66           1 :     return true;
      67             : }
      68             : 
      69             : // *** keccak256 ***
      70           1 : bool hash_keccak256_init(hash_keccak256_ctx_t* ctx) {
      71           1 :     cx_keccak_init(ctx, 256);
      72           1 :     return true;
      73             : }
      74             : 
      75           1 : bool hash_keccak256_update(hash_keccak256_ctx_t* ctx,
      76             :                            const uint8_t* data,
      77             :                            size_t len) {
      78           1 :     cx_hash((cx_hash_t*)(ctx), 0, (unsigned char*)data, len, NULL);
      79           1 :     return true;
      80             : }
      81             : 
      82           1 : bool hash_keccak256_final(hash_keccak256_ctx_t* ctx, uint8_t* out_hash) {
      83           1 :     cx_hash((cx_hash_t*)(ctx), CX_LAST, NULL, 0, out_hash);
      84           1 :     return true;
      85             : }