diff options
Diffstat (limited to 'wasm/sha256.c')
| -rw-r--r-- | wasm/sha256.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/wasm/sha256.c b/wasm/sha256.c index 3d6e9f1..f641cbd 100644 --- a/wasm/sha256.c +++ b/wasm/sha256.c @@ -1,21 +1,9 @@ -/********************************************************************* -* Filename: sha256.c -* Author: Brad Conte (brad AT bradconte.com) -* Copyright: Identified to be public domain by ducky -* Disclaimer: This code is presented "as is" without any guarantees. -* Details: Implementation of the SHA-256 hashing algorithm. - SHA-256 is one of the three algorithms in the SHA2 - specification. The others, SHA-384 and SHA-512, are not - offered in this implementation. - Algorithm specification can be found here: - * http://csrc.nist.gov/publications/fips/fips180-2/fips180-2withchangenotice.pdf - This implementation uses little endian byte order. -*********************************************************************/ - -/*************************** HEADER FILES ***************************/ +// SPDX-FileContributor: Brad Conte <brad@bradconte.com> +// Identified to be public domain by ducky +// Disclaimer: This code is presented "as is" without any guarantees. + #include "sha256.h" -/****************************** MACROS ******************************/ #define ROTLEFT(a,b) (((a) << (b)) | ((a) >> (32-(b)))) #define ROTRIGHT(a,b) (((a) >> (b)) | ((a) << (32-(b)))) @@ -32,7 +20,6 @@ ((unsigned char *)(ptr))[i] = (unsigned char)(value); \ } while (0) -/**************************** VARIABLES *****************************/ static const WORD k[64] = { 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, @@ -44,7 +31,6 @@ static const WORD k[64] = { 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2 }; -/*********************** FUNCTION DEFINITIONS ***********************/ void sha256_transform(SHA256_CTX *ctx, const BYTE data[]) { WORD a, b, c, d, e, f, g, h, i, j, t1, t2, m[64]; |