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1044 lines
37 KiB
C
1044 lines
37 KiB
C
/************************* sha384-512.c ************************/
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/***************** See RFC 6234 for details. *******************/
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/* Copyright (c) 2011 IETF Trust and the persons identified as */
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/* authors of the code. All rights reserved. */
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/* See sha.h for terms of use and redistribution. */
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/*
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* Description:
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* This file implements the Secure Hash Algorithms SHA-384 and
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* SHA-512 as defined in the U.S. National Institute of Standards
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* and Technology Federal Information Processing Standards
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* Publication (FIPS PUB) 180-3 published in October 2008
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* and formerly defined in its predecessors, FIPS PUB 180-1
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* and FIP PUB 180-2.
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*
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* A combined document showing all algorithms is available at
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* http://csrc.nist.gov/publications/fips/
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* fips180-3/fips180-3_final.pdf
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*
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* The SHA-384 and SHA-512 algorithms produce 384-bit and 512-bit
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* message digests for a given data stream. It should take about
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* 2**n steps to find a message with the same digest as a given
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* message and 2**(n/2) to find any two messages with the same
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* digest, when n is the digest size in bits. Therefore, this
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* algorithm can serve as a means of providing a
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* "fingerprint" for a message.
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*
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* Portability Issues:
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* SHA-384 and SHA-512 are defined in terms of 64-bit "words",
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* but if USE_32BIT_ONLY is #defined, this code is implemented in
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* terms of 32-bit "words". This code uses <stdint.h> (included
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* via "sha.h") to define the 64-, 32- and 8-bit unsigned integer
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* types. If your C compiler does not support 64-bit unsigned
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* integers and you do not #define USE_32BIT_ONLY, this code is
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* not appropriate.
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*
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* Caveats:
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* SHA-384 and SHA-512 are designed to work with messages less
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* than 2^128 bits long. This implementation uses SHA384/512Input()
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* to hash the bits that are a multiple of the size of an 8-bit
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* octet, and then optionally uses SHA384/256FinalBits()
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* to hash the final few bits of the input.
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*
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*/
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#include "sha.h"
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#ifdef USE_32BIT_ONLY
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/*
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* Define 64-bit arithmetic in terms of 32-bit arithmetic.
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* Each 64-bit number is represented in a 2-word array.
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* All macros are defined such that the result is the last parameter.
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*/
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/*
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* Define shift, rotate left, and rotate right functions
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*/
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#define SHA512_SHR(bits, word, ret) ( \
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/* (((uint64_t)((word))) >> (bits)) */ \
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(ret)[0] = (((bits) < 32) && ((bits) >= 0)) ? \
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((word)[0] >> (bits)) : 0, \
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(ret)[1] = ((bits) > 32) ? ((word)[0] >> ((bits) - 32)) : \
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((bits) == 32) ? (word)[0] : \
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((bits) >= 0) ? \
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(((word)[0] << (32 - (bits))) | \
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((word)[1] >> (bits))) : 0 )
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#define SHA512_SHL(bits, word, ret) ( \
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/* (((uint64_t)(word)) << (bits)) */ \
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(ret)[0] = ((bits) > 32) ? ((word)[1] << ((bits) - 32)) : \
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((bits) == 32) ? (word)[1] : \
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((bits) >= 0) ? \
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(((word)[0] << (bits)) | \
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((word)[1] >> (32 - (bits)))) : \
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0, \
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(ret)[1] = (((bits) < 32) && ((bits) >= 0)) ? \
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((word)[1] << (bits)) : 0 )
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/*
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* Define 64-bit OR
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*/
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#define SHA512_OR(word1, word2, ret) ( \
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(ret)[0] = (word1)[0] | (word2)[0], \
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(ret)[1] = (word1)[1] | (word2)[1] )
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/*
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* Define 64-bit XOR
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*/
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#define SHA512_XOR(word1, word2, ret) ( \
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(ret)[0] = (word1)[0] ^ (word2)[0], \
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(ret)[1] = (word1)[1] ^ (word2)[1] )
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/*
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* Define 64-bit AND
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*/
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#define SHA512_AND(word1, word2, ret) ( \
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(ret)[0] = (word1)[0] & (word2)[0], \
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(ret)[1] = (word1)[1] & (word2)[1] )
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/*
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* Define 64-bit TILDA
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*/
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#define SHA512_TILDA(word, ret) \
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( (ret)[0] = ~(word)[0], (ret)[1] = ~(word)[1] )
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/*
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* Define 64-bit ADD
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*/
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#define SHA512_ADD(word1, word2, ret) ( \
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(ret)[1] = (word1)[1], (ret)[1] += (word2)[1], \
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(ret)[0] = (word1)[0] + (word2)[0] + ((ret)[1] < (word1)[1]) )
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/*
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* Add the 4word value in word2 to word1.
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*/
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static uint32_t ADDTO4_temp, ADDTO4_temp2;
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#define SHA512_ADDTO4(word1, word2) ( \
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ADDTO4_temp = (word1)[3], \
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(word1)[3] += (word2)[3], \
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ADDTO4_temp2 = (word1)[2], \
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(word1)[2] += (word2)[2] + ((word1)[3] < ADDTO4_temp), \
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ADDTO4_temp = (word1)[1], \
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(word1)[1] += (word2)[1] + ((word1)[2] < ADDTO4_temp2), \
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(word1)[0] += (word2)[0] + ((word1)[1] < ADDTO4_temp) )
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/*
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* Add the 2word value in word2 to word1.
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*/
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static uint32_t ADDTO2_temp;
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#define SHA512_ADDTO2(word1, word2) ( \
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ADDTO2_temp = (word1)[1], \
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(word1)[1] += (word2)[1], \
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(word1)[0] += (word2)[0] + ((word1)[1] < ADDTO2_temp) )
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/*
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* SHA rotate ((word >> bits) | (word << (64-bits)))
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*/
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static uint32_t ROTR_temp1[2], ROTR_temp2[2];
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#define SHA512_ROTR(bits, word, ret) ( \
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SHA512_SHR((bits), (word), ROTR_temp1), \
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SHA512_SHL(64-(bits), (word), ROTR_temp2), \
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SHA512_OR(ROTR_temp1, ROTR_temp2, (ret)) )
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/*
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* Define the SHA SIGMA and sigma macros
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*
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* SHA512_ROTR(28,word) ^ SHA512_ROTR(34,word) ^ SHA512_ROTR(39,word)
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*/
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static uint32_t SIGMA0_temp1[2], SIGMA0_temp2[2],
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SIGMA0_temp3[2], SIGMA0_temp4[2];
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#define SHA512_SIGMA0(word, ret) ( \
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SHA512_ROTR(28, (word), SIGMA0_temp1), \
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SHA512_ROTR(34, (word), SIGMA0_temp2), \
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SHA512_ROTR(39, (word), SIGMA0_temp3), \
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SHA512_XOR(SIGMA0_temp2, SIGMA0_temp3, SIGMA0_temp4), \
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SHA512_XOR(SIGMA0_temp1, SIGMA0_temp4, (ret)) )
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/*
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* SHA512_ROTR(14,word) ^ SHA512_ROTR(18,word) ^ SHA512_ROTR(41,word)
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*/
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static uint32_t SIGMA1_temp1[2], SIGMA1_temp2[2],
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SIGMA1_temp3[2], SIGMA1_temp4[2];
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#define SHA512_SIGMA1(word, ret) ( \
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SHA512_ROTR(14, (word), SIGMA1_temp1), \
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SHA512_ROTR(18, (word), SIGMA1_temp2), \
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SHA512_ROTR(41, (word), SIGMA1_temp3), \
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SHA512_XOR(SIGMA1_temp2, SIGMA1_temp3, SIGMA1_temp4), \
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SHA512_XOR(SIGMA1_temp1, SIGMA1_temp4, (ret)) )
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/*
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* (SHA512_ROTR( 1,word) ^ SHA512_ROTR( 8,word) ^ SHA512_SHR( 7,word))
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*/
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static uint32_t sigma0_temp1[2], sigma0_temp2[2],
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sigma0_temp3[2], sigma0_temp4[2];
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#define SHA512_sigma0(word, ret) ( \
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SHA512_ROTR( 1, (word), sigma0_temp1), \
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SHA512_ROTR( 8, (word), sigma0_temp2), \
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SHA512_SHR( 7, (word), sigma0_temp3), \
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SHA512_XOR(sigma0_temp2, sigma0_temp3, sigma0_temp4), \
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SHA512_XOR(sigma0_temp1, sigma0_temp4, (ret)) )
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/*
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* (SHA512_ROTR(19,word) ^ SHA512_ROTR(61,word) ^ SHA512_SHR( 6,word))
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*/
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static uint32_t sigma1_temp1[2], sigma1_temp2[2],
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sigma1_temp3[2], sigma1_temp4[2];
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#define SHA512_sigma1(word, ret) ( \
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SHA512_ROTR(19, (word), sigma1_temp1), \
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SHA512_ROTR(61, (word), sigma1_temp2), \
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SHA512_SHR( 6, (word), sigma1_temp3), \
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SHA512_XOR(sigma1_temp2, sigma1_temp3, sigma1_temp4), \
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SHA512_XOR(sigma1_temp1, sigma1_temp4, (ret)) )
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#ifndef USE_MODIFIED_MACROS
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/*
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* These definitions are the ones used in FIPS 180-3, section 4.1.3
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* Ch(x,y,z) ((x & y) ^ (~x & z))
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*/
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static uint32_t Ch_temp1[2], Ch_temp2[2], Ch_temp3[2];
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#define SHA_Ch(x, y, z, ret) ( \
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SHA512_AND(x, y, Ch_temp1), \
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SHA512_TILDA(x, Ch_temp2), \
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SHA512_AND(Ch_temp2, z, Ch_temp3), \
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SHA512_XOR(Ch_temp1, Ch_temp3, (ret)) )
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/*
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* Maj(x,y,z) (((x)&(y)) ^ ((x)&(z)) ^ ((y)&(z)))
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*/
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static uint32_t Maj_temp1[2], Maj_temp2[2],
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Maj_temp3[2], Maj_temp4[2];
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#define SHA_Maj(x, y, z, ret) ( \
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SHA512_AND(x, y, Maj_temp1), \
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SHA512_AND(x, z, Maj_temp2), \
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SHA512_AND(y, z, Maj_temp3), \
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SHA512_XOR(Maj_temp2, Maj_temp3, Maj_temp4), \
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SHA512_XOR(Maj_temp1, Maj_temp4, (ret)) )
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#else /* !USE_MODIFIED_MACROS */
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/*
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* These definitions are potentially faster equivalents for the ones
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* used in FIPS 180-3, section 4.1.3.
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* ((x & y) ^ (~x & z)) becomes
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* ((x & (y ^ z)) ^ z)
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*/
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#define SHA_Ch(x, y, z, ret) ( \
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(ret)[0] = (((x)[0] & ((y)[0] ^ (z)[0])) ^ (z)[0]), \
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(ret)[1] = (((x)[1] & ((y)[1] ^ (z)[1])) ^ (z)[1]) )
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/*
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* ((x & y) ^ (x & z) ^ (y & z)) becomes
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* ((x & (y | z)) | (y & z))
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*/
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#define SHA_Maj(x, y, z, ret) ( \
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ret[0] = (((x)[0] & ((y)[0] | (z)[0])) | ((y)[0] & (z)[0])), \
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ret[1] = (((x)[1] & ((y)[1] | (z)[1])) | ((y)[1] & (z)[1])) )
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#endif /* USE_MODIFIED_MACROS */
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/*
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* Add "length" to the length.
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* Set Corrupted when overflow has occurred.
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*/
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static uint32_t addTemp[4] = { 0, 0, 0, 0 };
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#define SHA384_512AddLength(context, length) ( \
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addTemp[3] = (length), SHA512_ADDTO4((context)->Length, addTemp), \
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(context)->Corrupted = (((context)->Length[3] < (length)) && \
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((context)->Length[2] == 0) && ((context)->Length[1] == 0) && \
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((context)->Length[0] == 0)) ? shaInputTooLong : \
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(context)->Corrupted )
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/* Local Function Prototypes */
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static int SHA384_512Reset(SHA512Context *context,
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uint32_t H0[SHA512HashSize/4]);
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static void SHA384_512ProcessMessageBlock(SHA512Context *context);
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static void SHA384_512Finalize(SHA512Context *context,
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uint8_t Pad_Byte);
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static void SHA384_512PadMessage(SHA512Context *context,
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uint8_t Pad_Byte);
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static int SHA384_512ResultN( SHA512Context *context,
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uint8_t Message_Digest[ ], int HashSize);
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/* Initial Hash Values: FIPS 180-3 sections 5.3.4 and 5.3.5 */
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static uint32_t SHA384_H0[SHA512HashSize/4] = {
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0xCBBB9D5D, 0xC1059ED8, 0x629A292A, 0x367CD507, 0x9159015A,
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0x3070DD17, 0x152FECD8, 0xF70E5939, 0x67332667, 0xFFC00B31,
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0x8EB44A87, 0x68581511, 0xDB0C2E0D, 0x64F98FA7, 0x47B5481D,
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0xBEFA4FA4
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};
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static uint32_t SHA512_H0[SHA512HashSize/4] = {
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0x6A09E667, 0xF3BCC908, 0xBB67AE85, 0x84CAA73B, 0x3C6EF372,
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0xFE94F82B, 0xA54FF53A, 0x5F1D36F1, 0x510E527F, 0xADE682D1,
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0x9B05688C, 0x2B3E6C1F, 0x1F83D9AB, 0xFB41BD6B, 0x5BE0CD19,
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0x137E2179
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};
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#else /* !USE_32BIT_ONLY */
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#include "sha-private.h"
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/* Define the SHA shift, rotate left and rotate right macros */
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#define SHA512_SHR(bits,word) (((uint64_t)(word)) >> (bits))
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#define SHA512_ROTR(bits,word) ((((uint64_t)(word)) >> (bits)) | \
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(((uint64_t)(word)) << (64-(bits))))
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/*
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* Define the SHA SIGMA and sigma macros
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*
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* SHA512_ROTR(28,word) ^ SHA512_ROTR(34,word) ^ SHA512_ROTR(39,word)
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*/
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#define SHA512_SIGMA0(word) \
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(SHA512_ROTR(28,word) ^ SHA512_ROTR(34,word) ^ SHA512_ROTR(39,word))
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#define SHA512_SIGMA1(word) \
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(SHA512_ROTR(14,word) ^ SHA512_ROTR(18,word) ^ SHA512_ROTR(41,word))
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#define SHA512_sigma0(word) \
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(SHA512_ROTR( 1,word) ^ SHA512_ROTR( 8,word) ^ SHA512_SHR( 7,word))
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#define SHA512_sigma1(word) \
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(SHA512_ROTR(19,word) ^ SHA512_ROTR(61,word) ^ SHA512_SHR( 6,word))
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/*
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* Add "length" to the length.
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* Set Corrupted when overflow has occurred.
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*/
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static uint64_t addTemp;
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#define SHA384_512AddLength(context, length) \
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(addTemp = context->Length_Low, context->Corrupted = \
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((context->Length_Low += length) < addTemp) && \
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(++context->Length_High == 0) ? shaInputTooLong : \
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(context)->Corrupted)
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/* Local Function Prototypes */
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static int SHA384_512Reset(SHA512Context *context,
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uint64_t H0[SHA512HashSize/8]);
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static void SHA384_512ProcessMessageBlock(SHA512Context *context);
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static void SHA384_512Finalize(SHA512Context *context,
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uint8_t Pad_Byte);
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static void SHA384_512PadMessage(SHA512Context *context,
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uint8_t Pad_Byte);
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static int SHA384_512ResultN(SHA512Context *context,
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uint8_t Message_Digest[ ], int HashSize);
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/* Initial Hash Values: FIPS 180-3 sections 5.3.4 and 5.3.5 */
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static uint64_t SHA384_H0[ ] = {
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0xCBBB9D5DC1059ED8ll, 0x629A292A367CD507ll, 0x9159015A3070DD17ll,
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0x152FECD8F70E5939ll, 0x67332667FFC00B31ll, 0x8EB44A8768581511ll,
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0xDB0C2E0D64F98FA7ll, 0x47B5481DBEFA4FA4ll
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};
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static uint64_t SHA512_H0[ ] = {
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0x6A09E667F3BCC908ll, 0xBB67AE8584CAA73Bll, 0x3C6EF372FE94F82Bll,
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0xA54FF53A5F1D36F1ll, 0x510E527FADE682D1ll, 0x9B05688C2B3E6C1Fll,
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0x1F83D9ABFB41BD6Bll, 0x5BE0CD19137E2179ll
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};
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#endif /* USE_32BIT_ONLY */
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/*
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* SHA384Reset
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*
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* Description:
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* This function will initialize the SHA384Context in preparation
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* for computing a new SHA384 message digest.
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*
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* Parameters:
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* context: [in/out]
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* The context to reset.
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*
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* Returns:
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* sha Error Code.
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*
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*/
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int SHA384Reset(SHA384Context *context)
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{
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return SHA384_512Reset(context, SHA384_H0);
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}
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/*
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* SHA384Input
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*
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* Description:
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* This function accepts an array of octets as the next portion
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* of the message.
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*
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* Parameters:
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* context: [in/out]
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* The SHA context to update.
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* message_array[ ]: [in]
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* An array of octets representing the next portion of
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* the message.
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* length: [in]
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* The length of the message in message_array.
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*
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* Returns:
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* sha Error Code.
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*
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*/
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int SHA384Input(SHA384Context *context,
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const uint8_t *message_array, unsigned int length)
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{
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return SHA512Input(context, message_array, length);
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}
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/*
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* SHA384FinalBits
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*
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* Description:
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* This function will add in any final bits of the message.
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*
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* Parameters:
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* context: [in/out]
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* The SHA context to update.
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* message_bits: [in]
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* The final bits of the message, in the upper portion of the
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* byte. (Use 0b###00000 instead of 0b00000### to input the
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* three bits ###.)
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* length: [in]
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* The number of bits in message_bits, between 1 and 7.
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*
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* Returns:
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* sha Error Code.
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*
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*/
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int SHA384FinalBits(SHA384Context *context,
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uint8_t message_bits, unsigned int length)
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{
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return SHA512FinalBits(context, message_bits, length);
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}
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/*
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* SHA384Result
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*
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* Description:
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* This function will return the 384-bit message digest
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* into the Message_Digest array provided by the caller.
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* NOTE:
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* The first octet of hash is stored in the element with index 0,
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* the last octet of hash in the element with index 47.
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*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to use to calculate the SHA hash.
|
|
* Message_Digest[ ]: [out]
|
|
* Where the digest is returned.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
int SHA384Result(SHA384Context *context,
|
|
uint8_t Message_Digest[SHA384HashSize])
|
|
{
|
|
return SHA384_512ResultN(context, Message_Digest, SHA384HashSize);
|
|
}
|
|
|
|
/*
|
|
* SHA512Reset
|
|
*
|
|
* Description:
|
|
* This function will initialize the SHA512Context in preparation
|
|
* for computing a new SHA512 message digest.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to reset.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
int SHA512Reset(SHA512Context *context)
|
|
{
|
|
return SHA384_512Reset(context, SHA512_H0);
|
|
}
|
|
|
|
/*
|
|
* SHA512Input
|
|
*
|
|
* Description:
|
|
* This function accepts an array of octets as the next portion
|
|
* of the message.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The SHA context to update.
|
|
* message_array[ ]: [in]
|
|
* An array of octets representing the next portion of
|
|
* the message.
|
|
* length: [in]
|
|
* The length of the message in message_array.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
int SHA512Input(SHA512Context *context,
|
|
const uint8_t *message_array,
|
|
unsigned int length)
|
|
{
|
|
if (!context) return shaNull;
|
|
if (!length) return shaSuccess;
|
|
if (!message_array) return shaNull;
|
|
if (context->Computed) return context->Corrupted = shaStateError;
|
|
if (context->Corrupted) return context->Corrupted;
|
|
|
|
while (length--) {
|
|
context->Message_Block[context->Message_Block_Index++] =
|
|
*message_array;
|
|
|
|
if ((SHA384_512AddLength(context, 8) == shaSuccess) &&
|
|
(context->Message_Block_Index == SHA512_Message_Block_Size))
|
|
SHA384_512ProcessMessageBlock(context);
|
|
|
|
message_array++;
|
|
}
|
|
|
|
return context->Corrupted;
|
|
}
|
|
|
|
/*
|
|
* SHA512FinalBits
|
|
*
|
|
* Description:
|
|
* This function will add in any final bits of the message.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The SHA context to update.
|
|
* message_bits: [in]
|
|
* The final bits of the message, in the upper portion of the
|
|
* byte. (Use 0b###00000 instead of 0b00000### to input the
|
|
* three bits ###.)
|
|
* length: [in]
|
|
* The number of bits in message_bits, between 1 and 7.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
int SHA512FinalBits(SHA512Context *context,
|
|
uint8_t message_bits, unsigned int length)
|
|
{
|
|
static uint8_t masks[8] = {
|
|
/* 0 0b00000000 */ 0x00, /* 1 0b10000000 */ 0x80,
|
|
/* 2 0b11000000 */ 0xC0, /* 3 0b11100000 */ 0xE0,
|
|
/* 4 0b11110000 */ 0xF0, /* 5 0b11111000 */ 0xF8,
|
|
/* 6 0b11111100 */ 0xFC, /* 7 0b11111110 */ 0xFE
|
|
};
|
|
static uint8_t markbit[8] = {
|
|
/* 0 0b10000000 */ 0x80, /* 1 0b01000000 */ 0x40,
|
|
/* 2 0b00100000 */ 0x20, /* 3 0b00010000 */ 0x10,
|
|
/* 4 0b00001000 */ 0x08, /* 5 0b00000100 */ 0x04,
|
|
/* 6 0b00000010 */ 0x02, /* 7 0b00000001 */ 0x01
|
|
};
|
|
|
|
if (!context) return shaNull;
|
|
if (!length) return shaSuccess;
|
|
if (context->Corrupted) return context->Corrupted;
|
|
if (context->Computed) return context->Corrupted = shaStateError;
|
|
if (length >= 8) return context->Corrupted = shaBadParam;
|
|
|
|
SHA384_512AddLength(context, length);
|
|
SHA384_512Finalize(context, (uint8_t)
|
|
((message_bits & masks[length]) | markbit[length]));
|
|
|
|
return context->Corrupted;
|
|
}
|
|
|
|
/*
|
|
* SHA512Result
|
|
*
|
|
* Description:
|
|
* This function will return the 512-bit message digest
|
|
* into the Message_Digest array provided by the caller.
|
|
* NOTE:
|
|
* The first octet of hash is stored in the element with index 0,
|
|
* the last octet of hash in the element with index 63.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to use to calculate the SHA hash.
|
|
* Message_Digest[ ]: [out]
|
|
* Where the digest is returned.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
int SHA512Result(SHA512Context *context,
|
|
uint8_t Message_Digest[SHA512HashSize])
|
|
{
|
|
return SHA384_512ResultN(context, Message_Digest, SHA512HashSize);
|
|
}
|
|
|
|
unsigned char * SHA512Direct(const uint8_t *message_array, unsigned length,
|
|
uint8_t Message_Digest[SHA512HashSize])
|
|
{
|
|
SHA512Context context;
|
|
|
|
SHA512Reset(&context);
|
|
SHA512Input(&context, message_array, length);
|
|
SHA512Result(&context, Message_Digest);
|
|
return (Message_Digest);
|
|
}
|
|
|
|
/*
|
|
* SHA384_512Reset
|
|
*
|
|
* Description:
|
|
* This helper function will initialize the SHA512Context in
|
|
* preparation for computing a new SHA384 or SHA512 message
|
|
* digest.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to reset.
|
|
* H0[ ]: [in]
|
|
* The initial hash value array to use.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
#ifdef USE_32BIT_ONLY
|
|
static int SHA384_512Reset(SHA512Context *context,
|
|
uint32_t H0[SHA512HashSize/4])
|
|
#else /* !USE_32BIT_ONLY */
|
|
static int SHA384_512Reset(SHA512Context *context,
|
|
uint64_t H0[SHA512HashSize/8])
|
|
#endif /* USE_32BIT_ONLY */
|
|
{
|
|
int i;
|
|
if (!context) return shaNull;
|
|
context->Message_Block_Index = 0;
|
|
|
|
#ifdef USE_32BIT_ONLY
|
|
context->Length[0] = context->Length[1] =
|
|
context->Length[2] = context->Length[3] = 0;
|
|
|
|
for (i = 0; i < SHA512HashSize/4; i++)
|
|
context->Intermediate_Hash[i] = H0[i];
|
|
#else /* !USE_32BIT_ONLY */
|
|
context->Length_High = context->Length_Low = 0;
|
|
|
|
for (i = 0; i < SHA512HashSize/8; i++)
|
|
context->Intermediate_Hash[i] = H0[i];
|
|
#endif /* USE_32BIT_ONLY */
|
|
|
|
context->Computed = 0;
|
|
context->Corrupted = shaSuccess;
|
|
|
|
return shaSuccess;
|
|
}
|
|
|
|
/*
|
|
* SHA384_512ProcessMessageBlock
|
|
*
|
|
* Description:
|
|
* This helper function will process the next 1024 bits of the
|
|
* message stored in the Message_Block array.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The SHA context to update.
|
|
*
|
|
* Returns:
|
|
* Nothing.
|
|
*
|
|
* Comments:
|
|
* Many of the variable names in this code, especially the
|
|
* single character names, were used because those were the
|
|
* names used in the Secure Hash Standard.
|
|
*
|
|
*
|
|
*/
|
|
static void SHA384_512ProcessMessageBlock(SHA512Context *context)
|
|
{
|
|
#ifdef USE_32BIT_ONLY
|
|
/* Constants defined in FIPS 180-3, section 4.2.3 */
|
|
static const uint32_t K[80*2] = {
|
|
0x428A2F98, 0xD728AE22, 0x71374491, 0x23EF65CD, 0xB5C0FBCF,
|
|
0xEC4D3B2F, 0xE9B5DBA5, 0x8189DBBC, 0x3956C25B, 0xF348B538,
|
|
0x59F111F1, 0xB605D019, 0x923F82A4, 0xAF194F9B, 0xAB1C5ED5,
|
|
0xDA6D8118, 0xD807AA98, 0xA3030242, 0x12835B01, 0x45706FBE,
|
|
0x243185BE, 0x4EE4B28C, 0x550C7DC3, 0xD5FFB4E2, 0x72BE5D74,
|
|
0xF27B896F, 0x80DEB1FE, 0x3B1696B1, 0x9BDC06A7, 0x25C71235,
|
|
0xC19BF174, 0xCF692694, 0xE49B69C1, 0x9EF14AD2, 0xEFBE4786,
|
|
0x384F25E3, 0x0FC19DC6, 0x8B8CD5B5, 0x240CA1CC, 0x77AC9C65,
|
|
0x2DE92C6F, 0x592B0275, 0x4A7484AA, 0x6EA6E483, 0x5CB0A9DC,
|
|
0xBD41FBD4, 0x76F988DA, 0x831153B5, 0x983E5152, 0xEE66DFAB,
|
|
0xA831C66D, 0x2DB43210, 0xB00327C8, 0x98FB213F, 0xBF597FC7,
|
|
0xBEEF0EE4, 0xC6E00BF3, 0x3DA88FC2, 0xD5A79147, 0x930AA725,
|
|
0x06CA6351, 0xE003826F, 0x14292967, 0x0A0E6E70, 0x27B70A85,
|
|
0x46D22FFC, 0x2E1B2138, 0x5C26C926, 0x4D2C6DFC, 0x5AC42AED,
|
|
0x53380D13, 0x9D95B3DF, 0x650A7354, 0x8BAF63DE, 0x766A0ABB,
|
|
0x3C77B2A8, 0x81C2C92E, 0x47EDAEE6, 0x92722C85, 0x1482353B,
|
|
0xA2BFE8A1, 0x4CF10364, 0xA81A664B, 0xBC423001, 0xC24B8B70,
|
|
0xD0F89791, 0xC76C51A3, 0x0654BE30, 0xD192E819, 0xD6EF5218,
|
|
0xD6990624, 0x5565A910, 0xF40E3585, 0x5771202A, 0x106AA070,
|
|
0x32BBD1B8, 0x19A4C116, 0xB8D2D0C8, 0x1E376C08, 0x5141AB53,
|
|
0x2748774C, 0xDF8EEB99, 0x34B0BCB5, 0xE19B48A8, 0x391C0CB3,
|
|
0xC5C95A63, 0x4ED8AA4A, 0xE3418ACB, 0x5B9CCA4F, 0x7763E373,
|
|
0x682E6FF3, 0xD6B2B8A3, 0x748F82EE, 0x5DEFB2FC, 0x78A5636F,
|
|
0x43172F60, 0x84C87814, 0xA1F0AB72, 0x8CC70208, 0x1A6439EC,
|
|
0x90BEFFFA, 0x23631E28, 0xA4506CEB, 0xDE82BDE9, 0xBEF9A3F7,
|
|
0xB2C67915, 0xC67178F2, 0xE372532B, 0xCA273ECE, 0xEA26619C,
|
|
0xD186B8C7, 0x21C0C207, 0xEADA7DD6, 0xCDE0EB1E, 0xF57D4F7F,
|
|
0xEE6ED178, 0x06F067AA, 0x72176FBA, 0x0A637DC5, 0xA2C898A6,
|
|
0x113F9804, 0xBEF90DAE, 0x1B710B35, 0x131C471B, 0x28DB77F5,
|
|
0x23047D84, 0x32CAAB7B, 0x40C72493, 0x3C9EBE0A, 0x15C9BEBC,
|
|
0x431D67C4, 0x9C100D4C, 0x4CC5D4BE, 0xCB3E42B6, 0x597F299C,
|
|
0xFC657E2A, 0x5FCB6FAB, 0x3AD6FAEC, 0x6C44198C, 0x4A475817
|
|
};
|
|
int t, t2, t8; /* Loop counter */
|
|
uint32_t temp1[2], temp2[2], /* Temporary word values */
|
|
temp3[2], temp4[2], temp5[2];
|
|
uint32_t W[2*80]; /* Word sequence */
|
|
uint32_t A[2], B[2], C[2], D[2], /* Word buffers */
|
|
E[2], F[2], G[2], H[2];
|
|
|
|
/* Initialize the first 16 words in the array W */
|
|
for (t = t2 = t8 = 0; t < 16; t++, t8 += 8) {
|
|
W[t2++] = ((((uint32_t)context->Message_Block[t8 ])) << 24) |
|
|
((((uint32_t)context->Message_Block[t8 + 1])) << 16) |
|
|
((((uint32_t)context->Message_Block[t8 + 2])) << 8) |
|
|
((((uint32_t)context->Message_Block[t8 + 3])));
|
|
W[t2++] = ((((uint32_t)context->Message_Block[t8 + 4])) << 24) |
|
|
((((uint32_t)context->Message_Block[t8 + 5])) << 16) |
|
|
((((uint32_t)context->Message_Block[t8 + 6])) << 8) |
|
|
((((uint32_t)context->Message_Block[t8 + 7])));
|
|
}
|
|
|
|
for (t = 16; t < 80; t++, t2 += 2) {
|
|
/* W[t] = SHA512_sigma1(W[t-2]) + W[t-7] +
|
|
SHA512_sigma0(W[t-15]) + W[t-16]; */
|
|
uint32_t *Wt2 = &W[t2-2*2];
|
|
uint32_t *Wt7 = &W[t2-7*2];
|
|
uint32_t *Wt15 = &W[t2-15*2];
|
|
uint32_t *Wt16 = &W[t2-16*2];
|
|
SHA512_sigma1(Wt2, temp1);
|
|
SHA512_ADD(temp1, Wt7, temp2);
|
|
SHA512_sigma0(Wt15, temp1);
|
|
SHA512_ADD(temp1, Wt16, temp3);
|
|
SHA512_ADD(temp2, temp3, &W[t2]);
|
|
}
|
|
|
|
A[0] = context->Intermediate_Hash[0];
|
|
A[1] = context->Intermediate_Hash[1];
|
|
B[0] = context->Intermediate_Hash[2];
|
|
B[1] = context->Intermediate_Hash[3];
|
|
C[0] = context->Intermediate_Hash[4];
|
|
C[1] = context->Intermediate_Hash[5];
|
|
D[0] = context->Intermediate_Hash[6];
|
|
D[1] = context->Intermediate_Hash[7];
|
|
E[0] = context->Intermediate_Hash[8];
|
|
E[1] = context->Intermediate_Hash[9];
|
|
F[0] = context->Intermediate_Hash[10];
|
|
F[1] = context->Intermediate_Hash[11];
|
|
G[0] = context->Intermediate_Hash[12];
|
|
G[1] = context->Intermediate_Hash[13];
|
|
H[0] = context->Intermediate_Hash[14];
|
|
H[1] = context->Intermediate_Hash[15];
|
|
|
|
for (t = t2 = 0; t < 80; t++, t2 += 2) {
|
|
/*
|
|
* temp1 = H + SHA512_SIGMA1(E) + SHA_Ch(E,F,G) + K[t] + W[t];
|
|
*/
|
|
SHA512_SIGMA1(E,temp1);
|
|
SHA512_ADD(H, temp1, temp2);
|
|
SHA_Ch(E,F,G,temp3);
|
|
SHA512_ADD(temp2, temp3, temp4);
|
|
SHA512_ADD(&K[t2], &W[t2], temp5);
|
|
SHA512_ADD(temp4, temp5, temp1);
|
|
/*
|
|
* temp2 = SHA512_SIGMA0(A) + SHA_Maj(A,B,C);
|
|
*/
|
|
SHA512_SIGMA0(A,temp3);
|
|
SHA_Maj(A,B,C,temp4);
|
|
SHA512_ADD(temp3, temp4, temp2);
|
|
H[0] = G[0]; H[1] = G[1];
|
|
G[0] = F[0]; G[1] = F[1];
|
|
F[0] = E[0]; F[1] = E[1];
|
|
SHA512_ADD(D, temp1, E);
|
|
D[0] = C[0]; D[1] = C[1];
|
|
C[0] = B[0]; C[1] = B[1];
|
|
B[0] = A[0]; B[1] = A[1];
|
|
SHA512_ADD(temp1, temp2, A);
|
|
}
|
|
|
|
SHA512_ADDTO2(&context->Intermediate_Hash[0], A);
|
|
SHA512_ADDTO2(&context->Intermediate_Hash[2], B);
|
|
SHA512_ADDTO2(&context->Intermediate_Hash[4], C);
|
|
SHA512_ADDTO2(&context->Intermediate_Hash[6], D);
|
|
SHA512_ADDTO2(&context->Intermediate_Hash[8], E);
|
|
SHA512_ADDTO2(&context->Intermediate_Hash[10], F);
|
|
SHA512_ADDTO2(&context->Intermediate_Hash[12], G);
|
|
SHA512_ADDTO2(&context->Intermediate_Hash[14], H);
|
|
|
|
#else /* !USE_32BIT_ONLY */
|
|
/* Constants defined in FIPS 180-3, section 4.2.3 */
|
|
static const uint64_t K[80] = {
|
|
0x428A2F98D728AE22ll, 0x7137449123EF65CDll, 0xB5C0FBCFEC4D3B2Fll,
|
|
0xE9B5DBA58189DBBCll, 0x3956C25BF348B538ll, 0x59F111F1B605D019ll,
|
|
0x923F82A4AF194F9Bll, 0xAB1C5ED5DA6D8118ll, 0xD807AA98A3030242ll,
|
|
0x12835B0145706FBEll, 0x243185BE4EE4B28Cll, 0x550C7DC3D5FFB4E2ll,
|
|
0x72BE5D74F27B896Fll, 0x80DEB1FE3B1696B1ll, 0x9BDC06A725C71235ll,
|
|
0xC19BF174CF692694ll, 0xE49B69C19EF14AD2ll, 0xEFBE4786384F25E3ll,
|
|
0x0FC19DC68B8CD5B5ll, 0x240CA1CC77AC9C65ll, 0x2DE92C6F592B0275ll,
|
|
0x4A7484AA6EA6E483ll, 0x5CB0A9DCBD41FBD4ll, 0x76F988DA831153B5ll,
|
|
0x983E5152EE66DFABll, 0xA831C66D2DB43210ll, 0xB00327C898FB213Fll,
|
|
0xBF597FC7BEEF0EE4ll, 0xC6E00BF33DA88FC2ll, 0xD5A79147930AA725ll,
|
|
0x06CA6351E003826Fll, 0x142929670A0E6E70ll, 0x27B70A8546D22FFCll,
|
|
0x2E1B21385C26C926ll, 0x4D2C6DFC5AC42AEDll, 0x53380D139D95B3DFll,
|
|
0x650A73548BAF63DEll, 0x766A0ABB3C77B2A8ll, 0x81C2C92E47EDAEE6ll,
|
|
0x92722C851482353Bll, 0xA2BFE8A14CF10364ll, 0xA81A664BBC423001ll,
|
|
0xC24B8B70D0F89791ll, 0xC76C51A30654BE30ll, 0xD192E819D6EF5218ll,
|
|
0xD69906245565A910ll, 0xF40E35855771202All, 0x106AA07032BBD1B8ll,
|
|
0x19A4C116B8D2D0C8ll, 0x1E376C085141AB53ll, 0x2748774CDF8EEB99ll,
|
|
0x34B0BCB5E19B48A8ll, 0x391C0CB3C5C95A63ll, 0x4ED8AA4AE3418ACBll,
|
|
0x5B9CCA4F7763E373ll, 0x682E6FF3D6B2B8A3ll, 0x748F82EE5DEFB2FCll,
|
|
0x78A5636F43172F60ll, 0x84C87814A1F0AB72ll, 0x8CC702081A6439ECll,
|
|
0x90BEFFFA23631E28ll, 0xA4506CEBDE82BDE9ll, 0xBEF9A3F7B2C67915ll,
|
|
0xC67178F2E372532Bll, 0xCA273ECEEA26619Cll, 0xD186B8C721C0C207ll,
|
|
0xEADA7DD6CDE0EB1Ell, 0xF57D4F7FEE6ED178ll, 0x06F067AA72176FBAll,
|
|
0x0A637DC5A2C898A6ll, 0x113F9804BEF90DAEll, 0x1B710B35131C471Bll,
|
|
0x28DB77F523047D84ll, 0x32CAAB7B40C72493ll, 0x3C9EBE0A15C9BEBCll,
|
|
0x431D67C49C100D4Cll, 0x4CC5D4BECB3E42B6ll, 0x597F299CFC657E2All,
|
|
0x5FCB6FAB3AD6FAECll, 0x6C44198C4A475817ll
|
|
};
|
|
int t, t8; /* Loop counter */
|
|
uint64_t temp1, temp2; /* Temporary word value */
|
|
uint64_t W[80]; /* Word sequence */
|
|
uint64_t A, B, C, D, E, F, G, H; /* Word buffers */
|
|
|
|
/*
|
|
* Initialize the first 16 words in the array W
|
|
*/
|
|
for (t = t8 = 0; t < 16; t++, t8 += 8)
|
|
W[t] = ((uint64_t)(context->Message_Block[t8 ]) << 56) |
|
|
((uint64_t)(context->Message_Block[t8 + 1]) << 48) |
|
|
((uint64_t)(context->Message_Block[t8 + 2]) << 40) |
|
|
((uint64_t)(context->Message_Block[t8 + 3]) << 32) |
|
|
((uint64_t)(context->Message_Block[t8 + 4]) << 24) |
|
|
((uint64_t)(context->Message_Block[t8 + 5]) << 16) |
|
|
((uint64_t)(context->Message_Block[t8 + 6]) << 8) |
|
|
((uint64_t)(context->Message_Block[t8 + 7]));
|
|
|
|
for (t = 16; t < 80; t++)
|
|
W[t] = SHA512_sigma1(W[t-2]) + W[t-7] +
|
|
SHA512_sigma0(W[t-15]) + W[t-16];
|
|
A = context->Intermediate_Hash[0];
|
|
B = context->Intermediate_Hash[1];
|
|
C = context->Intermediate_Hash[2];
|
|
D = context->Intermediate_Hash[3];
|
|
E = context->Intermediate_Hash[4];
|
|
F = context->Intermediate_Hash[5];
|
|
G = context->Intermediate_Hash[6];
|
|
H = context->Intermediate_Hash[7];
|
|
|
|
for (t = 0; t < 80; t++) {
|
|
temp1 = H + SHA512_SIGMA1(E) + SHA_Ch(E,F,G) + K[t] + W[t];
|
|
temp2 = SHA512_SIGMA0(A) + SHA_Maj(A,B,C);
|
|
H = G;
|
|
G = F;
|
|
F = E;
|
|
E = D + temp1;
|
|
D = C;
|
|
C = B;
|
|
B = A;
|
|
A = temp1 + temp2;
|
|
}
|
|
|
|
context->Intermediate_Hash[0] += A;
|
|
context->Intermediate_Hash[1] += B;
|
|
context->Intermediate_Hash[2] += C;
|
|
context->Intermediate_Hash[3] += D;
|
|
context->Intermediate_Hash[4] += E;
|
|
context->Intermediate_Hash[5] += F;
|
|
context->Intermediate_Hash[6] += G;
|
|
context->Intermediate_Hash[7] += H;
|
|
#endif /* USE_32BIT_ONLY */
|
|
|
|
context->Message_Block_Index = 0;
|
|
}
|
|
|
|
/*
|
|
* SHA384_512Finalize
|
|
*
|
|
* Description:
|
|
* This helper function finishes off the digest calculations.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The SHA context to update.
|
|
* Pad_Byte: [in]
|
|
* The last byte to add to the message block before the 0-padding
|
|
* and length. This will contain the last bits of the message
|
|
* followed by another single bit. If the message was an
|
|
* exact multiple of 8-bits long, Pad_Byte will be 0x80.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
static void SHA384_512Finalize(SHA512Context *context,
|
|
uint8_t Pad_Byte)
|
|
{
|
|
int_least16_t i;
|
|
SHA384_512PadMessage(context, Pad_Byte);
|
|
/* message may be sensitive, clear it out */
|
|
for (i = 0; i < SHA512_Message_Block_Size; ++i)
|
|
context->Message_Block[i] = 0;
|
|
#ifdef USE_32BIT_ONLY /* and clear length */
|
|
context->Length[0] = context->Length[1] = 0;
|
|
context->Length[2] = context->Length[3] = 0;
|
|
#else /* !USE_32BIT_ONLY */
|
|
context->Length_High = context->Length_Low = 0;
|
|
#endif /* USE_32BIT_ONLY */
|
|
context->Computed = 1;
|
|
}
|
|
|
|
/*
|
|
* SHA384_512PadMessage
|
|
*
|
|
* Description:
|
|
* According to the standard, the message must be padded to the next
|
|
* even multiple of 1024 bits. The first padding bit must be a '1'.
|
|
* The last 128 bits represent the length of the original message.
|
|
* All bits in between should be 0. This helper function will
|
|
* pad the message according to those rules by filling the
|
|
* Message_Block array accordingly. When it returns, it can be
|
|
* assumed that the message digest has been computed.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to pad.
|
|
* Pad_Byte: [in]
|
|
* The last byte to add to the message block before the 0-padding
|
|
* and length. This will contain the last bits of the message
|
|
* followed by another single bit. If the message was an
|
|
* exact multiple of 8-bits long, Pad_Byte will be 0x80.
|
|
*
|
|
* Returns:
|
|
* Nothing.
|
|
*
|
|
*/
|
|
static void SHA384_512PadMessage(SHA512Context *context,
|
|
uint8_t Pad_Byte)
|
|
{
|
|
/*
|
|
* Check to see if the current message block is too small to hold
|
|
* the initial padding bits and length. If so, we will pad the
|
|
* block, process it, and then continue padding into a second
|
|
* block.
|
|
*/
|
|
if (context->Message_Block_Index >= (SHA512_Message_Block_Size-16)) {
|
|
context->Message_Block[context->Message_Block_Index++] = Pad_Byte;
|
|
while (context->Message_Block_Index < SHA512_Message_Block_Size)
|
|
context->Message_Block[context->Message_Block_Index++] = 0;
|
|
|
|
SHA384_512ProcessMessageBlock(context);
|
|
} else
|
|
context->Message_Block[context->Message_Block_Index++] = Pad_Byte;
|
|
|
|
while (context->Message_Block_Index < (SHA512_Message_Block_Size-16))
|
|
context->Message_Block[context->Message_Block_Index++] = 0;
|
|
|
|
/*
|
|
* Store the message length as the last 16 octets
|
|
*/
|
|
#ifdef USE_32BIT_ONLY
|
|
context->Message_Block[112] = (uint8_t)(context->Length[0] >> 24);
|
|
context->Message_Block[113] = (uint8_t)(context->Length[0] >> 16);
|
|
context->Message_Block[114] = (uint8_t)(context->Length[0] >> 8);
|
|
context->Message_Block[115] = (uint8_t)(context->Length[0]);
|
|
context->Message_Block[116] = (uint8_t)(context->Length[1] >> 24);
|
|
context->Message_Block[117] = (uint8_t)(context->Length[1] >> 16);
|
|
context->Message_Block[118] = (uint8_t)(context->Length[1] >> 8);
|
|
context->Message_Block[119] = (uint8_t)(context->Length[1]);
|
|
|
|
context->Message_Block[120] = (uint8_t)(context->Length[2] >> 24);
|
|
context->Message_Block[121] = (uint8_t)(context->Length[2] >> 16);
|
|
context->Message_Block[122] = (uint8_t)(context->Length[2] >> 8);
|
|
context->Message_Block[123] = (uint8_t)(context->Length[2]);
|
|
context->Message_Block[124] = (uint8_t)(context->Length[3] >> 24);
|
|
context->Message_Block[125] = (uint8_t)(context->Length[3] >> 16);
|
|
context->Message_Block[126] = (uint8_t)(context->Length[3] >> 8);
|
|
context->Message_Block[127] = (uint8_t)(context->Length[3]);
|
|
#else /* !USE_32BIT_ONLY */
|
|
context->Message_Block[112] = (uint8_t)(context->Length_High >> 56);
|
|
context->Message_Block[113] = (uint8_t)(context->Length_High >> 48);
|
|
context->Message_Block[114] = (uint8_t)(context->Length_High >> 40);
|
|
context->Message_Block[115] = (uint8_t)(context->Length_High >> 32);
|
|
context->Message_Block[116] = (uint8_t)(context->Length_High >> 24);
|
|
context->Message_Block[117] = (uint8_t)(context->Length_High >> 16);
|
|
context->Message_Block[118] = (uint8_t)(context->Length_High >> 8);
|
|
context->Message_Block[119] = (uint8_t)(context->Length_High);
|
|
|
|
context->Message_Block[120] = (uint8_t)(context->Length_Low >> 56);
|
|
context->Message_Block[121] = (uint8_t)(context->Length_Low >> 48);
|
|
context->Message_Block[122] = (uint8_t)(context->Length_Low >> 40);
|
|
context->Message_Block[123] = (uint8_t)(context->Length_Low >> 32);
|
|
context->Message_Block[124] = (uint8_t)(context->Length_Low >> 24);
|
|
context->Message_Block[125] = (uint8_t)(context->Length_Low >> 16);
|
|
context->Message_Block[126] = (uint8_t)(context->Length_Low >> 8);
|
|
context->Message_Block[127] = (uint8_t)(context->Length_Low);
|
|
#endif /* USE_32BIT_ONLY */
|
|
|
|
SHA384_512ProcessMessageBlock(context);
|
|
}
|
|
|
|
/*
|
|
* SHA384_512ResultN
|
|
*
|
|
* Description:
|
|
* This helper function will return the 384-bit or 512-bit message
|
|
* digest into the Message_Digest array provided by the caller.
|
|
* NOTE:
|
|
* The first octet of hash is stored in the element with index 0,
|
|
* the last octet of hash in the element with index 47/63.
|
|
*
|
|
* Parameters:
|
|
* context: [in/out]
|
|
* The context to use to calculate the SHA hash.
|
|
* Message_Digest[ ]: [out]
|
|
* Where the digest is returned.
|
|
* HashSize: [in]
|
|
* The size of the hash, either 48 or 64.
|
|
*
|
|
* Returns:
|
|
* sha Error Code.
|
|
*
|
|
*/
|
|
static int SHA384_512ResultN(SHA512Context *context,
|
|
uint8_t Message_Digest[ ], int HashSize)
|
|
{
|
|
int i;
|
|
#ifdef USE_32BIT_ONLY
|
|
int i2;
|
|
#endif /* USE_32BIT_ONLY */
|
|
|
|
if (!context) return shaNull;
|
|
if (!Message_Digest) return shaNull;
|
|
if (context->Corrupted) return context->Corrupted;
|
|
|
|
if (!context->Computed)
|
|
SHA384_512Finalize(context, 0x80);
|
|
|
|
#ifdef USE_32BIT_ONLY
|
|
for (i = i2 = 0; i < HashSize; ) {
|
|
Message_Digest[i++]=(uint8_t)(context->Intermediate_Hash[i2]>>24);
|
|
Message_Digest[i++]=(uint8_t)(context->Intermediate_Hash[i2]>>16);
|
|
Message_Digest[i++]=(uint8_t)(context->Intermediate_Hash[i2]>>8);
|
|
Message_Digest[i++]=(uint8_t)(context->Intermediate_Hash[i2++]);
|
|
Message_Digest[i++]=(uint8_t)(context->Intermediate_Hash[i2]>>24);
|
|
Message_Digest[i++]=(uint8_t)(context->Intermediate_Hash[i2]>>16);
|
|
Message_Digest[i++]=(uint8_t)(context->Intermediate_Hash[i2]>>8);
|
|
Message_Digest[i++]=(uint8_t)(context->Intermediate_Hash[i2++]);
|
|
}
|
|
#else /* !USE_32BIT_ONLY */
|
|
for (i = 0; i < HashSize; ++i)
|
|
Message_Digest[i] = (uint8_t)
|
|
(context->Intermediate_Hash[i>>3] >> 8 * ( 7 - ( i % 8 ) ));
|
|
#endif /* USE_32BIT_ONLY */
|
|
|
|
return shaSuccess;
|
|
}
|
|
|