From 6ecf69b6e67ff552aaf2ab8062be072aba062e0e Mon Sep 17 00:00:00 2001 From: Matthias Schiffer Date: Thu, 15 Aug 2013 01:18:51 +0200 Subject: Add small SHA256 implementation The NaCl implementation has a code size of more than 10KiB. --- src/sha256.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 src/sha256.h (limited to 'src/sha256.h') diff --git a/src/sha256.h b/src/sha256.h new file mode 100644 index 0000000..c6acadb --- /dev/null +++ b/src/sha256.h @@ -0,0 +1,39 @@ +/* + Copyright (c) 2012-2013, Matthias Schiffer + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#ifndef _FASTD_SHA256_H_ +#define _FASTD_SHA256_H_ + +#include + + +#define FASTD_SHA256_HASH_BYTES 32 +#define FASTD_SHA256_HASH_BLOCK_BYTES 32 + + +void fastd_sha256_blocks(uint8_t out[FASTD_SHA256_HASH_BYTES], ...); + +#endif /* _FASTD_SHA256_H_ */ -- cgit v1.2.3