diff options
Diffstat (limited to 'src/crypto/isa-l/isa-l_crypto/mh_sha1/mh_sha1_update_base.c')
| -rw-r--r-- | src/crypto/isa-l/isa-l_crypto/mh_sha1/mh_sha1_update_base.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/crypto/isa-l/isa-l_crypto/mh_sha1/mh_sha1_update_base.c b/src/crypto/isa-l/isa-l_crypto/mh_sha1/mh_sha1_update_base.c new file mode 100644 index 000000000..8879b2879 --- /dev/null +++ b/src/crypto/isa-l/isa-l_crypto/mh_sha1/mh_sha1_update_base.c @@ -0,0 +1,110 @@ +/********************************************************************** + Copyright(c) 2011-2016 Intel Corporation All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * 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. + * Neither the name of Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + 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 + OWNER 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. +**********************************************************************/ + +/* + * mh_sha1_update_base.c contains the prototype of mh_sha1_update_XXX. + * Default definitions are base type which generates mh_sha1_update_base. + * Other types are generated through different predefined macros by mh_sha1.c. + */ +#ifndef MH_SHA1_UPDATE_FUNCTION +#include "mh_sha1_internal.h" +#include <string.h> + +#define MH_SHA1_UPDATE_FUNCTION mh_sha1_update_base +#define MH_SHA1_BLOCK_FUNCTION mh_sha1_block_base +#define MH_SHA1_UPDATE_SLVER +#endif + +int MH_SHA1_UPDATE_FUNCTION(struct mh_sha1_ctx *ctx, const void *buffer, uint32_t len) +{ + + uint8_t *partial_block_buffer; + uint64_t partial_block_len; + uint64_t num_blocks; + uint32_t(*mh_sha1_segs_digests)[HASH_SEGS]; + uint8_t *aligned_frame_buffer; + const uint8_t *input_data = (const uint8_t *)buffer; + + if (ctx == NULL) + return MH_SHA1_CTX_ERROR_NULL; + + if (len == 0) + return MH_SHA1_CTX_ERROR_NONE; + + partial_block_len = ctx->total_length % MH_SHA1_BLOCK_SIZE; + partial_block_buffer = ctx->partial_block_buffer; + aligned_frame_buffer = (uint8_t *) ALIGN_64(ctx->frame_buffer); + mh_sha1_segs_digests = (uint32_t(*)[HASH_SEGS]) ctx->mh_sha1_interim_digests; + + ctx->total_length += len; + // No enough input data for mh_sha1 calculation + if (len + partial_block_len < MH_SHA1_BLOCK_SIZE) { + memcpy(partial_block_buffer + partial_block_len, input_data, len); + return MH_SHA1_CTX_ERROR_NONE; + } + // mh_sha1 calculation for the previous partial block + if (partial_block_len != 0) { + memcpy(partial_block_buffer + partial_block_len, input_data, + MH_SHA1_BLOCK_SIZE - partial_block_len); + //do one_block process + MH_SHA1_BLOCK_FUNCTION(partial_block_buffer, mh_sha1_segs_digests, + aligned_frame_buffer, 1); + input_data += MH_SHA1_BLOCK_SIZE - partial_block_len; + len -= MH_SHA1_BLOCK_SIZE - partial_block_len; + memset(partial_block_buffer, 0, MH_SHA1_BLOCK_SIZE); + } + // Calculate mh_sha1 for the current blocks + num_blocks = len / MH_SHA1_BLOCK_SIZE; + if (num_blocks > 0) { + //do num_blocks process + MH_SHA1_BLOCK_FUNCTION(input_data, mh_sha1_segs_digests, aligned_frame_buffer, + num_blocks); + len -= num_blocks * MH_SHA1_BLOCK_SIZE; + input_data += num_blocks * MH_SHA1_BLOCK_SIZE; + } + // Store the partial block + if (len != 0) { + memcpy(partial_block_buffer, input_data, len); + } + + return MH_SHA1_CTX_ERROR_NONE; + +} + +#ifdef MH_SHA1_UPDATE_SLVER +struct slver { + uint16_t snum; + uint8_t ver; + uint8_t core; +}; + + // Version info +struct slver mh_sha1_update_base_slver_0000027a; +struct slver mh_sha1_update_base_slver = { 0x027a, 0x00, 0x00 }; +#endif |