| /* |
| * An implementation of the SHA-224 hash function. |
| * |
| * The Federal Information Processing Standards (FIPS) Specification |
| * can be found here (FIPS 180-3): |
| * http://csrc.nist.gov/publications/PubsFIPS.html |
| * |
| * Written in 2010 by Lorenz Quack <don@amberfisharts.com> |
| * |
| * =================================================================== |
| * The contents of this file are dedicated to the public domain. To |
| * the extent that dedication to the public domain is not available, |
| * everyone is granted a worldwide, perpetual, royalty-free, |
| * non-exclusive license to exercise all rights associated with the |
| * contents of this file for any purpose whatsoever. |
| * No rights are reserved. |
| * |
| * 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. |
| * =================================================================== |
| * |
| */ |
| |
| #define MODULE_NAME _SHA224 |
| #define DIGEST_SIZE (224/8) |
| #define BLOCK_SIZE (512/8) |
| #define WORD_SIZE 4 |
| #define SCHEDULE_SIZE 64 |
| |
| #include "hash_SHA2.h" |
| |
| /* Initial Values H */ |
| static const sha2_word_t H[8] = { |
| 0xc1059ed8, |
| 0x367cd507, |
| 0x3070dd17, |
| 0xf70e5939, |
| 0xffc00b31, |
| 0x68581511, |
| 0x64f98fa7, |
| 0xbefa4fa4 |
| }; |
| |
| /* the Constants K */ |
| static const sha2_word_t K[SCHEDULE_SIZE] = { |
| 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, |
| 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, |
| 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, |
| 0xc19bf174, 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, |
| 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da, 0x983e5152, |
| 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, |
| 0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, |
| 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, |
| 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, |
| 0xd6990624, 0xf40e3585, 0x106aa070, 0x19a4c116, 0x1e376c08, |
| 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, |
| 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, |
| 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 |
| }; |
| |
| /* SHA-224 specific functions */ |
| #define Sigma0(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22)) |
| #define Sigma1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25)) |
| #define Gamma0(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHR(x, 3)) |
| #define Gamma1(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHR(x, 10)) |
| |
| #include "hash_SHA2_template.c" |
| |
