Azure IoT / azure_c_shared_utility

Azure IoT common library

Dependents:   STM32F746_iothub_client_sample_mqtt f767zi_mqtt iothub_client_sample_amqp iothub_client_sample_http ... more

sha384-512.c@0:fa2de1b79154, 2016-04-08 (annotated)

Committer:
Azure.IoT Build
Date:
Fri Apr 08 12:01:36 2016 -0700
Revision:
0:fa2de1b79154
Child:
15:956c6d205aa7
1.0.4

Who changed what in which revision?

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Azure.IoT Build 0:fa2de1b79154 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:fa2de1b79154 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:fa2de1b79154 3
Azure.IoT Build 0:fa2de1b79154 4 /*************************** sha384-512.c ***************************/
Azure.IoT Build 0:fa2de1b79154 5 /********************* See RFC 4634 for details *********************/
Azure.IoT Build 0:fa2de1b79154 6 /*
Azure.IoT Build 0:fa2de1b79154 7 * Description:
Azure.IoT Build 0:fa2de1b79154 8 * This file implements the Secure Hash Signature Standard
Azure.IoT Build 0:fa2de1b79154 9 * algorithms as defined in the National Institute of Standards
Azure.IoT Build 0:fa2de1b79154 10 * and Technology Federal Information Processing Standards
Azure.IoT Build 0:fa2de1b79154 11 * Publication (FIPS PUB) 180-1 published on April 17, 1995, 180-2
Azure.IoT Build 0:fa2de1b79154 12 * published on August 1, 2002, and the FIPS PUB 180-2 Change
Azure.IoT Build 0:fa2de1b79154 13 * Notice published on February 28, 2004.
Azure.IoT Build 0:fa2de1b79154 14 *
Azure.IoT Build 0:fa2de1b79154 15 * A combined document showing all algorithms is available at
Azure.IoT Build 0:fa2de1b79154 16 * http://csrc.nist.gov/publications/fips/
Azure.IoT Build 0:fa2de1b79154 17 * fips180-2/fips180-2withchangenotice.pdf
Azure.IoT Build 0:fa2de1b79154 18 *
Azure.IoT Build 0:fa2de1b79154 19 * The SHA-384 and SHA-512 algorithms produce 384-bit and 512-bit
Azure.IoT Build 0:fa2de1b79154 20 * message digests for a given data stream. It should take about
Azure.IoT Build 0:fa2de1b79154 21 * 2**n steps to find a message with the same digest as a given
Azure.IoT Build 0:fa2de1b79154 22 * message and 2**(n/2) to find any two messages with the same
Azure.IoT Build 0:fa2de1b79154 23 * digest, when n is the digest size in bits. Therefore, this
Azure.IoT Build 0:fa2de1b79154 24 * algorithm can serve as a means of providing a
Azure.IoT Build 0:fa2de1b79154 25 * "fingerprint" for a message.
Azure.IoT Build 0:fa2de1b79154 26 *
Azure.IoT Build 0:fa2de1b79154 27 * Portability Issues:
Azure.IoT Build 0:fa2de1b79154 28 * SHA-384 and SHA-512 are defined in terms of 64-bit "words",
Azure.IoT Build 0:fa2de1b79154 29 * but if USE_32BIT_ONLY is #defined, this code is implemented in
Azure.IoT Build 0:fa2de1b79154 30 * terms of 32-bit "words". This code uses <stdint.h> (included
Azure.IoT Build 0:fa2de1b79154 31 * via "sha.h") to define the 64, 32 and 8 bit unsigned integer
Azure.IoT Build 0:fa2de1b79154 32 * types. If your C compiler does not support 64 bit unsigned
Azure.IoT Build 0:fa2de1b79154 33 * integers, and you do not #define USE_32BIT_ONLY, this code is
Azure.IoT Build 0:fa2de1b79154 34 * not appropriate.
Azure.IoT Build 0:fa2de1b79154 35 *
Azure.IoT Build 0:fa2de1b79154 36 * Caveats:
Azure.IoT Build 0:fa2de1b79154 37 * SHA-384 and SHA-512 are designed to work with messages less
Azure.IoT Build 0:fa2de1b79154 38 * than 2^128 bits long. This implementation uses
Azure.IoT Build 0:fa2de1b79154 39 * SHA384/512Input() to hash the bits that are a multiple of the
Azure.IoT Build 0:fa2de1b79154 40 * size of an 8-bit character, and then uses SHA384/256FinalBits()
Azure.IoT Build 0:fa2de1b79154 41 * to hash the final few bits of the input.
Azure.IoT Build 0:fa2de1b79154 42 *
Azure.IoT Build 0:fa2de1b79154 43 */
Azure.IoT Build 0:fa2de1b79154 44
Azure.IoT Build 0:fa2de1b79154 45 #include <stdlib.h>
Azure.IoT Build 0:fa2de1b79154 46 #ifdef _CRTDBG_MAP_ALLOC
Azure.IoT Build 0:fa2de1b79154 47 #include <crtdbg.h>
Azure.IoT Build 0:fa2de1b79154 48 #endif
Azure.IoT Build 0:fa2de1b79154 49 #include "azure_c_shared_utility/gballoc.h"
Azure.IoT Build 0:fa2de1b79154 50
Azure.IoT Build 0:fa2de1b79154 51 #include "azure_c_shared_utility/sha.h"
Azure.IoT Build 0:fa2de1b79154 52 #include "azure_c_shared_utility/sha-private.h"
Azure.IoT Build 0:fa2de1b79154 53
Azure.IoT Build 0:fa2de1b79154 54 #ifdef USE_32BIT_ONLY
Azure.IoT Build 0:fa2de1b79154 55 /*
Azure.IoT Build 0:fa2de1b79154 56 * Define 64-bit arithmetic in terms of 32-bit arithmetic.
Azure.IoT Build 0:fa2de1b79154 57 * Each 64-bit number is represented in a 2-word array.
Azure.IoT Build 0:fa2de1b79154 58 * All macros are defined such that the result is the last parameter.
Azure.IoT Build 0:fa2de1b79154 59 */
Azure.IoT Build 0:fa2de1b79154 60
Azure.IoT Build 0:fa2de1b79154 61 /*
Azure.IoT Build 0:fa2de1b79154 62 * Define shift, rotate left and rotate right functions
Azure.IoT Build 0:fa2de1b79154 63 */
Azure.IoT Build 0:fa2de1b79154 64 #define SHA512_SHR(bits, word, ret) ( \
Azure.IoT Build 0:fa2de1b79154 65 /* (((uint64_t)((word))) >> (bits)) */ \
Azure.IoT Build 0:fa2de1b79154 66 (ret)[0] = (((bits) < 32) && ((bits) >= 0)) ? \
Azure.IoT Build 0:fa2de1b79154 67 ((word)[0] >> (bits)) : 0, \
Azure.IoT Build 0:fa2de1b79154 68 (ret)[1] = ((bits) > 32) ? ((word)[0] >> ((bits) - 32)) : \
Azure.IoT Build 0:fa2de1b79154 69 ((bits) == 32) ? (word)[0] : \
Azure.IoT Build 0:fa2de1b79154 70 ((bits) >= 0) ? \
Azure.IoT Build 0:fa2de1b79154 71 (((word)[0] << (32 - (bits))) | \
Azure.IoT Build 0:fa2de1b79154 72 ((word)[1] >> (bits))) : 0 )
Azure.IoT Build 0:fa2de1b79154 73
Azure.IoT Build 0:fa2de1b79154 74 #define SHA512_SHL(bits, word, ret) ( \
Azure.IoT Build 0:fa2de1b79154 75 /* (((uint64_t)(word)) << (bits)) */ \
Azure.IoT Build 0:fa2de1b79154 76 (ret)[0] = ((bits) > 32) ? ((word)[1] << ((bits) - 32)) : \
Azure.IoT Build 0:fa2de1b79154 77 ((bits) == 32) ? (word)[1] : \
Azure.IoT Build 0:fa2de1b79154 78 ((bits) >= 0) ? \
Azure.IoT Build 0:fa2de1b79154 79 (((word)[0] << (bits)) | \
Azure.IoT Build 0:fa2de1b79154 80 ((word)[1] >> (32 - (bits)))) : \
Azure.IoT Build 0:fa2de1b79154 81 0, \
Azure.IoT Build 0:fa2de1b79154 82 (ret)[1] = (((bits) < 32) && ((bits) >= 0)) ? \
Azure.IoT Build 0:fa2de1b79154 83 ((word)[1] << (bits)) : 0)
Azure.IoT Build 0:fa2de1b79154 84
Azure.IoT Build 0:fa2de1b79154 85 /*
Azure.IoT Build 0:fa2de1b79154 86 * Define 64-bit OR
Azure.IoT Build 0:fa2de1b79154 87 */
Azure.IoT Build 0:fa2de1b79154 88 #define SHA512_OR(word1, word2, ret) ( \
Azure.IoT Build 0:fa2de1b79154 89 (ret)[0] = (word1)[0] | (word2)[0], \
Azure.IoT Build 0:fa2de1b79154 90 (ret)[1] = (word1)[1] | (word2)[1] )
Azure.IoT Build 0:fa2de1b79154 91
Azure.IoT Build 0:fa2de1b79154 92 /*
Azure.IoT Build 0:fa2de1b79154 93 * Define 64-bit XOR
Azure.IoT Build 0:fa2de1b79154 94 */
Azure.IoT Build 0:fa2de1b79154 95 #define SHA512_XOR(word1, word2, ret) ( \
Azure.IoT Build 0:fa2de1b79154 96 (ret)[0] = (word1)[0] ^ (word2)[0], \
Azure.IoT Build 0:fa2de1b79154 97 (ret)[1] = (word1)[1] ^ (word2)[1] )
Azure.IoT Build 0:fa2de1b79154 98
Azure.IoT Build 0:fa2de1b79154 99 /*
Azure.IoT Build 0:fa2de1b79154 100 * Define 64-bit AND
Azure.IoT Build 0:fa2de1b79154 101 */
Azure.IoT Build 0:fa2de1b79154 102 #define SHA512_AND(word1, word2, ret) ( \
Azure.IoT Build 0:fa2de1b79154 103 (ret)[0] = (word1)[0] & (word2)[0], \
Azure.IoT Build 0:fa2de1b79154 104 (ret)[1] = (word1)[1] & (word2)[1] )
Azure.IoT Build 0:fa2de1b79154 105
Azure.IoT Build 0:fa2de1b79154 106 /*
Azure.IoT Build 0:fa2de1b79154 107 * Define 64-bit TILDA
Azure.IoT Build 0:fa2de1b79154 108 */
Azure.IoT Build 0:fa2de1b79154 109 #define SHA512_TILDA(word, ret) \
Azure.IoT Build 0:fa2de1b79154 110 ( (ret)[0] = ~(word)[0], (ret)[1] = ~(word)[1] )
Azure.IoT Build 0:fa2de1b79154 111
Azure.IoT Build 0:fa2de1b79154 112 /*
Azure.IoT Build 0:fa2de1b79154 113 * Define 64-bit ADD
Azure.IoT Build 0:fa2de1b79154 114 */
Azure.IoT Build 0:fa2de1b79154 115 #define SHA512_ADD(word1, word2, ret) ( \
Azure.IoT Build 0:fa2de1b79154 116 (ret)[1] = (word1)[1], (ret)[1] += (word2)[1], \
Azure.IoT Build 0:fa2de1b79154 117 (ret)[0] = (word1)[0] + (word2)[0] + ((ret)[1] < (word1)[1]) )
Azure.IoT Build 0:fa2de1b79154 118
Azure.IoT Build 0:fa2de1b79154 119 /*
Azure.IoT Build 0:fa2de1b79154 120 * Add the 4word value in word2 to word1.
Azure.IoT Build 0:fa2de1b79154 121 */
Azure.IoT Build 0:fa2de1b79154 122 static uint32_t ADDTO4_temp, ADDTO4_temp2;
Azure.IoT Build 0:fa2de1b79154 123 #define SHA512_ADDTO4(word1, word2) ( \
Azure.IoT Build 0:fa2de1b79154 124 ADDTO4_temp = (word1)[3], \
Azure.IoT Build 0:fa2de1b79154 125 (word1)[3] += (word2)[3], \
Azure.IoT Build 0:fa2de1b79154 126 ADDTO4_temp2 = (word1)[2], \
Azure.IoT Build 0:fa2de1b79154 127 (word1)[2] += (word2)[2] + ((word1)[3] < ADDTO4_temp), \
Azure.IoT Build 0:fa2de1b79154 128 ADDTO4_temp = (word1)[1], \
Azure.IoT Build 0:fa2de1b79154 129 (word1)[1] += (word2)[1] + ((word1)[2] < ADDTO4_temp2), \
Azure.IoT Build 0:fa2de1b79154 130 (word1)[0] += (word2)[0] + ((word1)[1] < ADDTO4_temp))
Azure.IoT Build 0:fa2de1b79154 131
Azure.IoT Build 0:fa2de1b79154 132 /*
Azure.IoT Build 0:fa2de1b79154 133 * Add the 2word value in word2 to word1.
Azure.IoT Build 0:fa2de1b79154 134 */
Azure.IoT Build 0:fa2de1b79154 135 static uint32_t ADDTO2_temp;
Azure.IoT Build 0:fa2de1b79154 136 #define SHA512_ADDTO2(word1, word2) ( \
Azure.IoT Build 0:fa2de1b79154 137 ADDTO2_temp = (word1)[1], \
Azure.IoT Build 0:fa2de1b79154 138 (word1)[1] += (word2)[1], \
Azure.IoT Build 0:fa2de1b79154 139 (word1)[0] += (word2)[0] + ((word1)[1] < ADDTO2_temp) )
Azure.IoT Build 0:fa2de1b79154 140
Azure.IoT Build 0:fa2de1b79154 141 /*
Azure.IoT Build 0:fa2de1b79154 142 * SHA rotate ((word >> bits) | (word << (64-bits)))
Azure.IoT Build 0:fa2de1b79154 143 */
Azure.IoT Build 0:fa2de1b79154 144 static uint32_t ROTR_temp1[2], ROTR_temp2[2];
Azure.IoT Build 0:fa2de1b79154 145 #define SHA512_ROTR(bits, word, ret) ( \
Azure.IoT Build 0:fa2de1b79154 146 SHA512_SHR((bits), (word), ROTR_temp1), \
Azure.IoT Build 0:fa2de1b79154 147 SHA512_SHL(64-(bits), (word), ROTR_temp2), \
Azure.IoT Build 0:fa2de1b79154 148 SHA512_OR(ROTR_temp1, ROTR_temp2, (ret)) )
Azure.IoT Build 0:fa2de1b79154 149
Azure.IoT Build 0:fa2de1b79154 150 /*
Azure.IoT Build 0:fa2de1b79154 151 * Define the SHA SIGMA and sigma macros
Azure.IoT Build 0:fa2de1b79154 152 * SHA512_ROTR(28,word) ^ SHA512_ROTR(34,word) ^ SHA512_ROTR(39,word)
Azure.IoT Build 0:fa2de1b79154 153 */
Azure.IoT Build 0:fa2de1b79154 154 static uint32_t SIGMA0_temp1[2], SIGMA0_temp2[2],
Azure.IoT Build 0:fa2de1b79154 155 SIGMA0_temp3[2], SIGMA0_temp4[2];
Azure.IoT Build 0:fa2de1b79154 156 #define SHA512_SIGMA0(word, ret) ( \
Azure.IoT Build 0:fa2de1b79154 157 SHA512_ROTR(28, (word), SIGMA0_temp1), \
Azure.IoT Build 0:fa2de1b79154 158 SHA512_ROTR(34, (word), SIGMA0_temp2), \
Azure.IoT Build 0:fa2de1b79154 159 SHA512_ROTR(39, (word), SIGMA0_temp3), \
Azure.IoT Build 0:fa2de1b79154 160 SHA512_XOR(SIGMA0_temp2, SIGMA0_temp3, SIGMA0_temp4), \
Azure.IoT Build 0:fa2de1b79154 161 SHA512_XOR(SIGMA0_temp1, SIGMA0_temp4, (ret)) )
Azure.IoT Build 0:fa2de1b79154 162
Azure.IoT Build 0:fa2de1b79154 163 /*
Azure.IoT Build 0:fa2de1b79154 164 * SHA512_ROTR(14,word) ^ SHA512_ROTR(18,word) ^ SHA512_ROTR(41,word)
Azure.IoT Build 0:fa2de1b79154 165 */
Azure.IoT Build 0:fa2de1b79154 166 static uint32_t SIGMA1_temp1[2], SIGMA1_temp2[2],
Azure.IoT Build 0:fa2de1b79154 167 SIGMA1_temp3[2], SIGMA1_temp4[2];
Azure.IoT Build 0:fa2de1b79154 168 #define SHA512_SIGMA1(word, ret) ( \
Azure.IoT Build 0:fa2de1b79154 169 SHA512_ROTR(14, (word), SIGMA1_temp1), \
Azure.IoT Build 0:fa2de1b79154 170 SHA512_ROTR(18, (word), SIGMA1_temp2), \
Azure.IoT Build 0:fa2de1b79154 171 SHA512_ROTR(41, (word), SIGMA1_temp3), \
Azure.IoT Build 0:fa2de1b79154 172 SHA512_XOR(SIGMA1_temp2, SIGMA1_temp3, SIGMA1_temp4), \
Azure.IoT Build 0:fa2de1b79154 173 SHA512_XOR(SIGMA1_temp1, SIGMA1_temp4, (ret)) )
Azure.IoT Build 0:fa2de1b79154 174
Azure.IoT Build 0:fa2de1b79154 175 /*
Azure.IoT Build 0:fa2de1b79154 176 * (SHA512_ROTR( 1,word) ^ SHA512_ROTR( 8,word) ^ SHA512_SHR( 7,word))
Azure.IoT Build 0:fa2de1b79154 177 */
Azure.IoT Build 0:fa2de1b79154 178 static uint32_t sigma0_temp1[2], sigma0_temp2[2],
Azure.IoT Build 0:fa2de1b79154 179 sigma0_temp3[2], sigma0_temp4[2];
Azure.IoT Build 0:fa2de1b79154 180 #define SHA512_sigma0(word, ret) ( \
Azure.IoT Build 0:fa2de1b79154 181 SHA512_ROTR( 1, (word), sigma0_temp1), \
Azure.IoT Build 0:fa2de1b79154 182 SHA512_ROTR( 8, (word), sigma0_temp2), \
Azure.IoT Build 0:fa2de1b79154 183 SHA512_SHR( 7, (word), sigma0_temp3), \
Azure.IoT Build 0:fa2de1b79154 184 SHA512_XOR(sigma0_temp2, sigma0_temp3, sigma0_temp4), \
Azure.IoT Build 0:fa2de1b79154 185 SHA512_XOR(sigma0_temp1, sigma0_temp4, (ret)) )
Azure.IoT Build 0:fa2de1b79154 186
Azure.IoT Build 0:fa2de1b79154 187 /*
Azure.IoT Build 0:fa2de1b79154 188 * (SHA512_ROTR(19,word) ^ SHA512_ROTR(61,word) ^ SHA512_SHR( 6,word))
Azure.IoT Build 0:fa2de1b79154 189 */
Azure.IoT Build 0:fa2de1b79154 190 static uint32_t sigma1_temp1[2], sigma1_temp2[2],
Azure.IoT Build 0:fa2de1b79154 191 sigma1_temp3[2], sigma1_temp4[2];
Azure.IoT Build 0:fa2de1b79154 192 #define SHA512_sigma1(word, ret) ( \
Azure.IoT Build 0:fa2de1b79154 193 SHA512_ROTR(19, (word), sigma1_temp1), \
Azure.IoT Build 0:fa2de1b79154 194 SHA512_ROTR(61, (word), sigma1_temp2), \
Azure.IoT Build 0:fa2de1b79154 195 SHA512_SHR( 6, (word), sigma1_temp3), \
Azure.IoT Build 0:fa2de1b79154 196 SHA512_XOR(sigma1_temp2, sigma1_temp3, sigma1_temp4), \
Azure.IoT Build 0:fa2de1b79154 197 SHA512_XOR(sigma1_temp1, sigma1_temp4, (ret)) )
Azure.IoT Build 0:fa2de1b79154 198
Azure.IoT Build 0:fa2de1b79154 199 #undef SHA_Ch
Azure.IoT Build 0:fa2de1b79154 200 #undef SHA_Maj
Azure.IoT Build 0:fa2de1b79154 201
Azure.IoT Build 0:fa2de1b79154 202 #ifndef USE_MODIFIED_MACROS
Azure.IoT Build 0:fa2de1b79154 203 /*
Azure.IoT Build 0:fa2de1b79154 204 * These definitions are the ones used in FIPS-180-2, section 4.1.3
Azure.IoT Build 0:fa2de1b79154 205 * Ch(x,y,z) ((x & y) ^ (~x & z))
Azure.IoT Build 0:fa2de1b79154 206 */
Azure.IoT Build 0:fa2de1b79154 207 static uint32_t Ch_temp1[2], Ch_temp2[2], Ch_temp3[2];
Azure.IoT Build 0:fa2de1b79154 208 #define SHA_Ch(x, y, z, ret) ( \
Azure.IoT Build 0:fa2de1b79154 209 SHA512_AND(x, y, Ch_temp1), \
Azure.IoT Build 0:fa2de1b79154 210 SHA512_TILDA(x, Ch_temp2), \
Azure.IoT Build 0:fa2de1b79154 211 SHA512_AND(Ch_temp2, z, Ch_temp3), \
Azure.IoT Build 0:fa2de1b79154 212 SHA512_XOR(Ch_temp1, Ch_temp3, (ret)) )
Azure.IoT Build 0:fa2de1b79154 213 /*
Azure.IoT Build 0:fa2de1b79154 214 * Maj(x,y,z) (((x)&(y)) ^ ((x)&(z)) ^ ((y)&(z)))
Azure.IoT Build 0:fa2de1b79154 215 */
Azure.IoT Build 0:fa2de1b79154 216 static uint32_t Maj_temp1[2], Maj_temp2[2],
Azure.IoT Build 0:fa2de1b79154 217 Maj_temp3[2], Maj_temp4[2];
Azure.IoT Build 0:fa2de1b79154 218 #define SHA_Maj(x, y, z, ret) ( \
Azure.IoT Build 0:fa2de1b79154 219 SHA512_AND(x, y, Maj_temp1), \
Azure.IoT Build 0:fa2de1b79154 220 SHA512_AND(x, z, Maj_temp2), \
Azure.IoT Build 0:fa2de1b79154 221 SHA512_AND(y, z, Maj_temp3), \
Azure.IoT Build 0:fa2de1b79154 222 SHA512_XOR(Maj_temp2, Maj_temp3, Maj_temp4), \
Azure.IoT Build 0:fa2de1b79154 223 SHA512_XOR(Maj_temp1, Maj_temp4, (ret)) )
Azure.IoT Build 0:fa2de1b79154 224
Azure.IoT Build 0:fa2de1b79154 225 #else /* !USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 226 /*
Azure.IoT Build 0:fa2de1b79154 227 * These definitions are potentially faster equivalents for the ones
Azure.IoT Build 0:fa2de1b79154 228 * used in FIPS-180-2, section 4.1.3.
Azure.IoT Build 0:fa2de1b79154 229 * ((x & y) ^ (~x & z)) becomes
Azure.IoT Build 0:fa2de1b79154 230 * ((x & (y ^ z)) ^ z)
Azure.IoT Build 0:fa2de1b79154 231 */
Azure.IoT Build 0:fa2de1b79154 232 #define SHA_Ch(x, y, z, ret) ( \
Azure.IoT Build 0:fa2de1b79154 233 (ret)[0] = (((x)[0] & ((y)[0] ^ (z)[0])) ^ (z)[0]), \
Azure.IoT Build 0:fa2de1b79154 234 (ret)[1] = (((x)[1] & ((y)[1] ^ (z)[1])) ^ (z)[1]) )
Azure.IoT Build 0:fa2de1b79154 235
Azure.IoT Build 0:fa2de1b79154 236 /*
Azure.IoT Build 0:fa2de1b79154 237 * ((x & y) ^ (x & z) ^ (y & z)) becomes
Azure.IoT Build 0:fa2de1b79154 238 * ((x & (y | z)) | (y & z))
Azure.IoT Build 0:fa2de1b79154 239 */
Azure.IoT Build 0:fa2de1b79154 240 #define SHA_Maj(x, y, z, ret) ( \
Azure.IoT Build 0:fa2de1b79154 241 ret[0] = (((x)[0] & ((y)[0] | (z)[0])) | ((y)[0] & (z)[0])), \
Azure.IoT Build 0:fa2de1b79154 242 ret[1] = (((x)[1] & ((y)[1] | (z)[1])) | ((y)[1] & (z)[1])) )
Azure.IoT Build 0:fa2de1b79154 243 #endif /* USE_MODIFIED_MACROS */
Azure.IoT Build 0:fa2de1b79154 244
Azure.IoT Build 0:fa2de1b79154 245 /*
Azure.IoT Build 0:fa2de1b79154 246 * add "length" to the length
Azure.IoT Build 0:fa2de1b79154 247 */
Azure.IoT Build 0:fa2de1b79154 248 static uint32_t addTemp[4] = { 0, 0, 0, 0 };
Azure.IoT Build 0:fa2de1b79154 249 #define SHA384_512AddLength(context, length) ( \
Azure.IoT Build 0:fa2de1b79154 250 addTemp[3] = (length), SHA512_ADDTO4((context)->Length, addTemp), \
Azure.IoT Build 0:fa2de1b79154 251 (context)->Corrupted = (((context)->Length[3] == 0) && \
Azure.IoT Build 0:fa2de1b79154 252 ((context)->Length[2] == 0) && ((context)->Length[1] == 0) && \
Azure.IoT Build 0:fa2de1b79154 253 ((context)->Length[0] < 8)) ? 1 : 0 )
Azure.IoT Build 0:fa2de1b79154 254
Azure.IoT Build 0:fa2de1b79154 255 /* Local Function Prototypes */
Azure.IoT Build 0:fa2de1b79154 256 static void SHA384_512Finalize(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 257 uint8_t Pad_Byte);
Azure.IoT Build 0:fa2de1b79154 258 static void SHA384_512PadMessage(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 259 uint8_t Pad_Byte);
Azure.IoT Build 0:fa2de1b79154 260 static void SHA384_512ProcessMessageBlock(SHA512Context *context);
Azure.IoT Build 0:fa2de1b79154 261 static int SHA384_512Reset(SHA512Context *context, uint32_t H0[]);
Azure.IoT Build 0:fa2de1b79154 262 static int SHA384_512ResultN(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 263 uint8_t Message_Digest[], int HashSize);
Azure.IoT Build 0:fa2de1b79154 264
Azure.IoT Build 0:fa2de1b79154 265 /* Initial Hash Values: FIPS-180-2 sections 5.3.3 and 5.3.4 */
Azure.IoT Build 0:fa2de1b79154 266 static uint32_t SHA384_H0[SHA512HashSize / 4] = {
Azure.IoT Build 0:fa2de1b79154 267 0xCBBB9D5D, 0xC1059ED8, 0x629A292A, 0x367CD507, 0x9159015A,
Azure.IoT Build 0:fa2de1b79154 268 0x3070DD17, 0x152FECD8, 0xF70E5939, 0x67332667, 0xFFC00B31,
Azure.IoT Build 0:fa2de1b79154 269 0x8EB44A87, 0x68581511, 0xDB0C2E0D, 0x64F98FA7, 0x47B5481D,
Azure.IoT Build 0:fa2de1b79154 270 0xBEFA4FA4
Azure.IoT Build 0:fa2de1b79154 271 };
Azure.IoT Build 0:fa2de1b79154 272
Azure.IoT Build 0:fa2de1b79154 273 static uint32_t SHA512_H0[SHA512HashSize / 4] = {
Azure.IoT Build 0:fa2de1b79154 274 0x6A09E667, 0xF3BCC908, 0xBB67AE85, 0x84CAA73B, 0x3C6EF372,
Azure.IoT Build 0:fa2de1b79154 275 0xFE94F82B, 0xA54FF53A, 0x5F1D36F1, 0x510E527F, 0xADE682D1,
Azure.IoT Build 0:fa2de1b79154 276 0x9B05688C, 0x2B3E6C1F, 0x1F83D9AB, 0xFB41BD6B, 0x5BE0CD19,
Azure.IoT Build 0:fa2de1b79154 277 0x137E2179
Azure.IoT Build 0:fa2de1b79154 278 };
Azure.IoT Build 0:fa2de1b79154 279
Azure.IoT Build 0:fa2de1b79154 280 #else /* !USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 281
Azure.IoT Build 0:fa2de1b79154 282 /* Define the SHA shift, rotate left and rotate right macro */
Azure.IoT Build 0:fa2de1b79154 283 #define SHA512_SHR(bits,word) (((uint64_t)(word)) >> (bits))
Azure.IoT Build 0:fa2de1b79154 284 #define SHA512_ROTR(bits,word) ((((uint64_t)(word)) >> (bits)) | \
Azure.IoT Build 0:fa2de1b79154 285 (((uint64_t)(word)) << (64-(bits))))
Azure.IoT Build 0:fa2de1b79154 286
Azure.IoT Build 0:fa2de1b79154 287 /* Define the SHA SIGMA and sigma macros */
Azure.IoT Build 0:fa2de1b79154 288 #define SHA512_SIGMA0(word) \
Azure.IoT Build 0:fa2de1b79154 289 (SHA512_ROTR(28,word) ^ SHA512_ROTR(34,word) ^ SHA512_ROTR(39,word))
Azure.IoT Build 0:fa2de1b79154 290 #define SHA512_SIGMA1(word) \
Azure.IoT Build 0:fa2de1b79154 291 (SHA512_ROTR(14,word) ^ SHA512_ROTR(18,word) ^ SHA512_ROTR(41,word))
Azure.IoT Build 0:fa2de1b79154 292 #define SHA512_sigma0(word) \
Azure.IoT Build 0:fa2de1b79154 293 (SHA512_ROTR( 1,word) ^ SHA512_ROTR( 8,word) ^ SHA512_SHR( 7,word))
Azure.IoT Build 0:fa2de1b79154 294 #define SHA512_sigma1(word) \
Azure.IoT Build 0:fa2de1b79154 295 (SHA512_ROTR(19,word) ^ SHA512_ROTR(61,word) ^ SHA512_SHR( 6,word))
Azure.IoT Build 0:fa2de1b79154 296
Azure.IoT Build 0:fa2de1b79154 297 /*
Azure.IoT Build 0:fa2de1b79154 298 * add "length" to the length
Azure.IoT Build 0:fa2de1b79154 299 */
Azure.IoT Build 0:fa2de1b79154 300 static uint64_t addTemp;
Azure.IoT Build 0:fa2de1b79154 301 #define SHA384_512AddLength(context, length) \
Azure.IoT Build 0:fa2de1b79154 302 (addTemp = context->Length_Low, context->Corrupted = \
Azure.IoT Build 0:fa2de1b79154 303 ((context->Length_Low += length) < addTemp) && \
Azure.IoT Build 0:fa2de1b79154 304 (++context->Length_High == 0) ? 1 : 0)
Azure.IoT Build 0:fa2de1b79154 305
Azure.IoT Build 0:fa2de1b79154 306 /* Local Function Prototypes */
Azure.IoT Build 0:fa2de1b79154 307 static void SHA384_512Finalize(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 308 uint8_t Pad_Byte);
Azure.IoT Build 0:fa2de1b79154 309 static void SHA384_512PadMessage(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 310 uint8_t Pad_Byte);
Azure.IoT Build 0:fa2de1b79154 311 static void SHA384_512ProcessMessageBlock(SHA512Context *context);
Azure.IoT Build 0:fa2de1b79154 312 static int SHA384_512Reset(SHA512Context *context, uint64_t H0[]);
Azure.IoT Build 0:fa2de1b79154 313 static int SHA384_512ResultN(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 314 uint8_t Message_Digest[], int HashSize);
Azure.IoT Build 0:fa2de1b79154 315
Azure.IoT Build 0:fa2de1b79154 316 /* Initial Hash Values: FIPS-180-2 sections 5.3.3 and 5.3.4 */
Azure.IoT Build 0:fa2de1b79154 317 static uint64_t SHA384_H0[] = {
Azure.IoT Build 0:fa2de1b79154 318 0xCBBB9D5DC1059ED8ull, 0x629A292A367CD507ull, 0x9159015A3070DD17ull,
Azure.IoT Build 0:fa2de1b79154 319 0x152FECD8F70E5939ull, 0x67332667FFC00B31ull, 0x8EB44A8768581511ull,
Azure.IoT Build 0:fa2de1b79154 320 0xDB0C2E0D64F98FA7ull, 0x47B5481DBEFA4FA4ull
Azure.IoT Build 0:fa2de1b79154 321 };
Azure.IoT Build 0:fa2de1b79154 322 static uint64_t SHA512_H0[] = {
Azure.IoT Build 0:fa2de1b79154 323 0x6A09E667F3BCC908ull, 0xBB67AE8584CAA73Bull, 0x3C6EF372FE94F82Bull,
Azure.IoT Build 0:fa2de1b79154 324 0xA54FF53A5F1D36F1ull, 0x510E527FADE682D1ull, 0x9B05688C2B3E6C1Full,
Azure.IoT Build 0:fa2de1b79154 325 0x1F83D9ABFB41BD6Bull, 0x5BE0CD19137E2179ull
Azure.IoT Build 0:fa2de1b79154 326 };
Azure.IoT Build 0:fa2de1b79154 327
Azure.IoT Build 0:fa2de1b79154 328 #endif /* USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 329
Azure.IoT Build 0:fa2de1b79154 330 /*
Azure.IoT Build 0:fa2de1b79154 331 * SHA384Reset
Azure.IoT Build 0:fa2de1b79154 332 *
Azure.IoT Build 0:fa2de1b79154 333 * Description:
Azure.IoT Build 0:fa2de1b79154 334 * This function will initialize the SHA384Context in preparation
Azure.IoT Build 0:fa2de1b79154 335 * for computing a new SHA384 message digest.
Azure.IoT Build 0:fa2de1b79154 336 *
Azure.IoT Build 0:fa2de1b79154 337 * Parameters:
Azure.IoT Build 0:fa2de1b79154 338 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 339 * The context to reset.
Azure.IoT Build 0:fa2de1b79154 340 *
Azure.IoT Build 0:fa2de1b79154 341 * Returns:
Azure.IoT Build 0:fa2de1b79154 342 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 343 *
Azure.IoT Build 0:fa2de1b79154 344 */
Azure.IoT Build 0:fa2de1b79154 345 int SHA384Reset(SHA384Context *context)
Azure.IoT Build 0:fa2de1b79154 346 {
Azure.IoT Build 0:fa2de1b79154 347 return SHA384_512Reset(context, SHA384_H0);
Azure.IoT Build 0:fa2de1b79154 348 }
Azure.IoT Build 0:fa2de1b79154 349
Azure.IoT Build 0:fa2de1b79154 350 /*
Azure.IoT Build 0:fa2de1b79154 351 * SHA384Input
Azure.IoT Build 0:fa2de1b79154 352 *
Azure.IoT Build 0:fa2de1b79154 353 * Description:
Azure.IoT Build 0:fa2de1b79154 354 * This function accepts an array of octets as the next portion
Azure.IoT Build 0:fa2de1b79154 355 * of the message.
Azure.IoT Build 0:fa2de1b79154 356 *
Azure.IoT Build 0:fa2de1b79154 357 * Parameters:
Azure.IoT Build 0:fa2de1b79154 358 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 359 * The SHA context to update
Azure.IoT Build 0:fa2de1b79154 360 * message_array: [in]
Azure.IoT Build 0:fa2de1b79154 361 * An array of characters representing the next portion of
Azure.IoT Build 0:fa2de1b79154 362 * the message.
Azure.IoT Build 0:fa2de1b79154 363 * length: [in]
Azure.IoT Build 0:fa2de1b79154 364 * The length of the message in message_array
Azure.IoT Build 0:fa2de1b79154 365 *
Azure.IoT Build 0:fa2de1b79154 366 * Returns:
Azure.IoT Build 0:fa2de1b79154 367 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 368 *
Azure.IoT Build 0:fa2de1b79154 369 */
Azure.IoT Build 0:fa2de1b79154 370 int SHA384Input(SHA384Context *context,
Azure.IoT Build 0:fa2de1b79154 371 const uint8_t *message_array, unsigned int length)
Azure.IoT Build 0:fa2de1b79154 372 {
Azure.IoT Build 0:fa2de1b79154 373 return SHA512Input(context, message_array, length);
Azure.IoT Build 0:fa2de1b79154 374 }
Azure.IoT Build 0:fa2de1b79154 375
Azure.IoT Build 0:fa2de1b79154 376 /*
Azure.IoT Build 0:fa2de1b79154 377 * SHA384FinalBits
Azure.IoT Build 0:fa2de1b79154 378 *
Azure.IoT Build 0:fa2de1b79154 379 * Description:
Azure.IoT Build 0:fa2de1b79154 380 * This function will add in any final bits of the message.
Azure.IoT Build 0:fa2de1b79154 381 *
Azure.IoT Build 0:fa2de1b79154 382 * Parameters:
Azure.IoT Build 0:fa2de1b79154 383 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 384 * The SHA context to update
Azure.IoT Build 0:fa2de1b79154 385 * message_bits: [in]
Azure.IoT Build 0:fa2de1b79154 386 * The final bits of the message, in the upper portion of the
Azure.IoT Build 0:fa2de1b79154 387 * byte. (Use 0b###00000 instead of 0b00000### to input the
Azure.IoT Build 0:fa2de1b79154 388 * three bits ###.)
Azure.IoT Build 0:fa2de1b79154 389 * length: [in]
Azure.IoT Build 0:fa2de1b79154 390 * The number of bits in message_bits, between 1 and 7.
Azure.IoT Build 0:fa2de1b79154 391 *
Azure.IoT Build 0:fa2de1b79154 392 * Returns:
Azure.IoT Build 0:fa2de1b79154 393 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 394 *
Azure.IoT Build 0:fa2de1b79154 395 */
Azure.IoT Build 0:fa2de1b79154 396 int SHA384FinalBits(SHA384Context *context,
Azure.IoT Build 0:fa2de1b79154 397 const uint8_t message_bits, unsigned int length)
Azure.IoT Build 0:fa2de1b79154 398 {
Azure.IoT Build 0:fa2de1b79154 399 return SHA512FinalBits(context, message_bits, length);
Azure.IoT Build 0:fa2de1b79154 400 }
Azure.IoT Build 0:fa2de1b79154 401
Azure.IoT Build 0:fa2de1b79154 402 /*
Azure.IoT Build 0:fa2de1b79154 403 * SHA384Result
Azure.IoT Build 0:fa2de1b79154 404 *
Azure.IoT Build 0:fa2de1b79154 405 * Description:
Azure.IoT Build 0:fa2de1b79154 406 * This function will return the 384-bit message
Azure.IoT Build 0:fa2de1b79154 407 * digest into the Message_Digest array provided by the caller.
Azure.IoT Build 0:fa2de1b79154 408 * NOTE: The first octet of hash is stored in the 0th element,
Azure.IoT Build 0:fa2de1b79154 409 * the last octet of hash in the 48th element.
Azure.IoT Build 0:fa2de1b79154 410 *
Azure.IoT Build 0:fa2de1b79154 411 * Parameters:
Azure.IoT Build 0:fa2de1b79154 412 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 413 * The context to use to calculate the SHA hash.
Azure.IoT Build 0:fa2de1b79154 414 * Message_Digest: [out]
Azure.IoT Build 0:fa2de1b79154 415 * Where the digest is returned.
Azure.IoT Build 0:fa2de1b79154 416 *
Azure.IoT Build 0:fa2de1b79154 417 * Returns:
Azure.IoT Build 0:fa2de1b79154 418 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 419 *
Azure.IoT Build 0:fa2de1b79154 420 */
Azure.IoT Build 0:fa2de1b79154 421 int SHA384Result(SHA384Context *context,
Azure.IoT Build 0:fa2de1b79154 422 uint8_t Message_Digest[SHA384HashSize])
Azure.IoT Build 0:fa2de1b79154 423 {
Azure.IoT Build 0:fa2de1b79154 424 return SHA384_512ResultN(context, Message_Digest, SHA384HashSize);
Azure.IoT Build 0:fa2de1b79154 425 }
Azure.IoT Build 0:fa2de1b79154 426
Azure.IoT Build 0:fa2de1b79154 427 /*
Azure.IoT Build 0:fa2de1b79154 428 * SHA512Reset
Azure.IoT Build 0:fa2de1b79154 429 *
Azure.IoT Build 0:fa2de1b79154 430 * Description:
Azure.IoT Build 0:fa2de1b79154 431 * This function will initialize the SHA512Context in preparation
Azure.IoT Build 0:fa2de1b79154 432 * for computing a new SHA512 message digest.
Azure.IoT Build 0:fa2de1b79154 433 *
Azure.IoT Build 0:fa2de1b79154 434 * Parameters:
Azure.IoT Build 0:fa2de1b79154 435 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 436 * The context to reset.
Azure.IoT Build 0:fa2de1b79154 437 *
Azure.IoT Build 0:fa2de1b79154 438 * Returns:
Azure.IoT Build 0:fa2de1b79154 439 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 440 *
Azure.IoT Build 0:fa2de1b79154 441 */
Azure.IoT Build 0:fa2de1b79154 442 int SHA512Reset(SHA512Context *context)
Azure.IoT Build 0:fa2de1b79154 443 {
Azure.IoT Build 0:fa2de1b79154 444 return SHA384_512Reset(context, SHA512_H0);
Azure.IoT Build 0:fa2de1b79154 445 }
Azure.IoT Build 0:fa2de1b79154 446
Azure.IoT Build 0:fa2de1b79154 447 /*
Azure.IoT Build 0:fa2de1b79154 448 * SHA512Input
Azure.IoT Build 0:fa2de1b79154 449 *
Azure.IoT Build 0:fa2de1b79154 450 * Description:
Azure.IoT Build 0:fa2de1b79154 451 * This function accepts an array of octets as the next portion
Azure.IoT Build 0:fa2de1b79154 452 * of the message.
Azure.IoT Build 0:fa2de1b79154 453 *
Azure.IoT Build 0:fa2de1b79154 454 * Parameters:
Azure.IoT Build 0:fa2de1b79154 455 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 456 * The SHA context to update
Azure.IoT Build 0:fa2de1b79154 457 * message_array: [in]
Azure.IoT Build 0:fa2de1b79154 458 * An array of characters representing the next portion of
Azure.IoT Build 0:fa2de1b79154 459 * the message.
Azure.IoT Build 0:fa2de1b79154 460 * length: [in]
Azure.IoT Build 0:fa2de1b79154 461 * The length of the message in message_array
Azure.IoT Build 0:fa2de1b79154 462 *
Azure.IoT Build 0:fa2de1b79154 463 * Returns:
Azure.IoT Build 0:fa2de1b79154 464 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 465 *
Azure.IoT Build 0:fa2de1b79154 466 */
Azure.IoT Build 0:fa2de1b79154 467 int SHA512Input(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 468 const uint8_t *message_array,
Azure.IoT Build 0:fa2de1b79154 469 unsigned int length)
Azure.IoT Build 0:fa2de1b79154 470 {
Azure.IoT Build 0:fa2de1b79154 471 if (!length)
Azure.IoT Build 0:fa2de1b79154 472 return shaSuccess;
Azure.IoT Build 0:fa2de1b79154 473
Azure.IoT Build 0:fa2de1b79154 474 if (!context || !message_array)
Azure.IoT Build 0:fa2de1b79154 475 return shaNull;
Azure.IoT Build 0:fa2de1b79154 476
Azure.IoT Build 0:fa2de1b79154 477 if (context->Computed) {
Azure.IoT Build 0:fa2de1b79154 478 context->Corrupted = shaStateError;
Azure.IoT Build 0:fa2de1b79154 479 return shaStateError;
Azure.IoT Build 0:fa2de1b79154 480 }
Azure.IoT Build 0:fa2de1b79154 481
Azure.IoT Build 0:fa2de1b79154 482 if (context->Corrupted)
Azure.IoT Build 0:fa2de1b79154 483 return context->Corrupted;
Azure.IoT Build 0:fa2de1b79154 484
Azure.IoT Build 0:fa2de1b79154 485 while (length-- && !context->Corrupted) {
Azure.IoT Build 0:fa2de1b79154 486 context->Message_Block[context->Message_Block_Index++] =
Azure.IoT Build 0:fa2de1b79154 487 (*message_array & 0xFF);
Azure.IoT Build 0:fa2de1b79154 488
Azure.IoT Build 0:fa2de1b79154 489 if (!SHA384_512AddLength(context, 8) &&
Azure.IoT Build 0:fa2de1b79154 490 (context->Message_Block_Index == SHA512_Message_Block_Size))
Azure.IoT Build 0:fa2de1b79154 491 SHA384_512ProcessMessageBlock(context);
Azure.IoT Build 0:fa2de1b79154 492
Azure.IoT Build 0:fa2de1b79154 493 message_array++;
Azure.IoT Build 0:fa2de1b79154 494 }
Azure.IoT Build 0:fa2de1b79154 495
Azure.IoT Build 0:fa2de1b79154 496 return shaSuccess;
Azure.IoT Build 0:fa2de1b79154 497 }
Azure.IoT Build 0:fa2de1b79154 498
Azure.IoT Build 0:fa2de1b79154 499 /*
Azure.IoT Build 0:fa2de1b79154 500 * SHA512FinalBits
Azure.IoT Build 0:fa2de1b79154 501 *
Azure.IoT Build 0:fa2de1b79154 502 * Description:
Azure.IoT Build 0:fa2de1b79154 503 * This function will add in any final bits of the message.
Azure.IoT Build 0:fa2de1b79154 504 *
Azure.IoT Build 0:fa2de1b79154 505 * Parameters:
Azure.IoT Build 0:fa2de1b79154 506 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 507 * The SHA context to update
Azure.IoT Build 0:fa2de1b79154 508 * message_bits: [in]
Azure.IoT Build 0:fa2de1b79154 509 * The final bits of the message, in the upper portion of the
Azure.IoT Build 0:fa2de1b79154 510 * byte. (Use 0b###00000 instead of 0b00000### to input the
Azure.IoT Build 0:fa2de1b79154 511 * three bits ###.)
Azure.IoT Build 0:fa2de1b79154 512 * length: [in]
Azure.IoT Build 0:fa2de1b79154 513 * The number of bits in message_bits, between 1 and 7.
Azure.IoT Build 0:fa2de1b79154 514 *
Azure.IoT Build 0:fa2de1b79154 515 * Returns:
Azure.IoT Build 0:fa2de1b79154 516 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 517 *
Azure.IoT Build 0:fa2de1b79154 518 */
Azure.IoT Build 0:fa2de1b79154 519 int SHA512FinalBits(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 520 const uint8_t message_bits, unsigned int length)
Azure.IoT Build 0:fa2de1b79154 521 {
Azure.IoT Build 0:fa2de1b79154 522 uint8_t masks[8] = {
Azure.IoT Build 0:fa2de1b79154 523 /* 0 0b00000000 */ 0x00, /* 1 0b10000000 */ 0x80,
Azure.IoT Build 0:fa2de1b79154 524 /* 2 0b11000000 */ 0xC0, /* 3 0b11100000 */ 0xE0,
Azure.IoT Build 0:fa2de1b79154 525 /* 4 0b11110000 */ 0xF0, /* 5 0b11111000 */ 0xF8,
Azure.IoT Build 0:fa2de1b79154 526 /* 6 0b11111100 */ 0xFC, /* 7 0b11111110 */ 0xFE
Azure.IoT Build 0:fa2de1b79154 527 };
Azure.IoT Build 0:fa2de1b79154 528 uint8_t markbit[8] = {
Azure.IoT Build 0:fa2de1b79154 529 /* 0 0b10000000 */ 0x80, /* 1 0b01000000 */ 0x40,
Azure.IoT Build 0:fa2de1b79154 530 /* 2 0b00100000 */ 0x20, /* 3 0b00010000 */ 0x10,
Azure.IoT Build 0:fa2de1b79154 531 /* 4 0b00001000 */ 0x08, /* 5 0b00000100 */ 0x04,
Azure.IoT Build 0:fa2de1b79154 532 /* 6 0b00000010 */ 0x02, /* 7 0b00000001 */ 0x01
Azure.IoT Build 0:fa2de1b79154 533 };
Azure.IoT Build 0:fa2de1b79154 534
Azure.IoT Build 0:fa2de1b79154 535 if (!length)
Azure.IoT Build 0:fa2de1b79154 536 return shaSuccess;
Azure.IoT Build 0:fa2de1b79154 537
Azure.IoT Build 0:fa2de1b79154 538 if (!context)
Azure.IoT Build 0:fa2de1b79154 539 return shaNull;
Azure.IoT Build 0:fa2de1b79154 540
Azure.IoT Build 0:fa2de1b79154 541 if ((context->Computed) || (length >= 8) || (length == 0)) {
Azure.IoT Build 0:fa2de1b79154 542 context->Corrupted = shaStateError;
Azure.IoT Build 0:fa2de1b79154 543 return shaStateError;
Azure.IoT Build 0:fa2de1b79154 544 }
Azure.IoT Build 0:fa2de1b79154 545
Azure.IoT Build 0:fa2de1b79154 546 if (context->Corrupted)
Azure.IoT Build 0:fa2de1b79154 547 return context->Corrupted;
Azure.IoT Build 0:fa2de1b79154 548
Azure.IoT Build 0:fa2de1b79154 549 SHA384_512AddLength(context, length);
Azure.IoT Build 0:fa2de1b79154 550 SHA384_512Finalize(context, (uint8_t)
Azure.IoT Build 0:fa2de1b79154 551 ((message_bits & masks[length]) | markbit[length]));
Azure.IoT Build 0:fa2de1b79154 552
Azure.IoT Build 0:fa2de1b79154 553 return shaSuccess;
Azure.IoT Build 0:fa2de1b79154 554 }
Azure.IoT Build 0:fa2de1b79154 555
Azure.IoT Build 0:fa2de1b79154 556 /*
Azure.IoT Build 0:fa2de1b79154 557 * SHA384_512Finalize
Azure.IoT Build 0:fa2de1b79154 558 *
Azure.IoT Build 0:fa2de1b79154 559 * Description:
Azure.IoT Build 0:fa2de1b79154 560 * This helper function finishes off the digest calculations.
Azure.IoT Build 0:fa2de1b79154 561 *
Azure.IoT Build 0:fa2de1b79154 562 * Parameters:
Azure.IoT Build 0:fa2de1b79154 563 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 564 * The SHA context to update
Azure.IoT Build 0:fa2de1b79154 565 * Pad_Byte: [in]
Azure.IoT Build 0:fa2de1b79154 566 * The last byte to add to the digest before the 0-padding
Azure.IoT Build 0:fa2de1b79154 567 * and length. This will contain the last bits of the message
Azure.IoT Build 0:fa2de1b79154 568 * followed by another single bit. If the message was an
Azure.IoT Build 0:fa2de1b79154 569 * exact multiple of 8-bits long, Pad_Byte will be 0x80.
Azure.IoT Build 0:fa2de1b79154 570 *
Azure.IoT Build 0:fa2de1b79154 571 * Returns:
Azure.IoT Build 0:fa2de1b79154 572 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 573 *
Azure.IoT Build 0:fa2de1b79154 574 */
Azure.IoT Build 0:fa2de1b79154 575 static void SHA384_512Finalize(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 576 uint8_t Pad_Byte)
Azure.IoT Build 0:fa2de1b79154 577 {
Azure.IoT Build 0:fa2de1b79154 578 int_least16_t i;
Azure.IoT Build 0:fa2de1b79154 579 SHA384_512PadMessage(context, Pad_Byte);
Azure.IoT Build 0:fa2de1b79154 580 /* message may be sensitive, clear it out */
Azure.IoT Build 0:fa2de1b79154 581 for (i = 0; i < SHA512_Message_Block_Size; ++i)
Azure.IoT Build 0:fa2de1b79154 582 context->Message_Block[i] = 0;
Azure.IoT Build 0:fa2de1b79154 583 #ifdef USE_32BIT_ONLY /* and clear length */
Azure.IoT Build 0:fa2de1b79154 584 context->Length[0] = context->Length[1] = 0;
Azure.IoT Build 0:fa2de1b79154 585 context->Length[2] = context->Length[3] = 0;
Azure.IoT Build 0:fa2de1b79154 586 #else /* !USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 587 context->Length_Low = 0;
Azure.IoT Build 0:fa2de1b79154 588 context->Length_High = 0;
Azure.IoT Build 0:fa2de1b79154 589 #endif /* USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 590 context->Computed = 1;
Azure.IoT Build 0:fa2de1b79154 591 }
Azure.IoT Build 0:fa2de1b79154 592
Azure.IoT Build 0:fa2de1b79154 593 /*
Azure.IoT Build 0:fa2de1b79154 594 * SHA512Result
Azure.IoT Build 0:fa2de1b79154 595 *
Azure.IoT Build 0:fa2de1b79154 596 * Description:
Azure.IoT Build 0:fa2de1b79154 597 * This function will return the 512-bit message
Azure.IoT Build 0:fa2de1b79154 598 * digest into the Message_Digest array provided by the caller.
Azure.IoT Build 0:fa2de1b79154 599 * NOTE: The first octet of hash is stored in the 0th element,
Azure.IoT Build 0:fa2de1b79154 600 * the last octet of hash in the 64th element.
Azure.IoT Build 0:fa2de1b79154 601 *
Azure.IoT Build 0:fa2de1b79154 602 * Parameters:
Azure.IoT Build 0:fa2de1b79154 603 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 604 * The context to use to calculate the SHA hash.
Azure.IoT Build 0:fa2de1b79154 605 * Message_Digest: [out]
Azure.IoT Build 0:fa2de1b79154 606 * Where the digest is returned.
Azure.IoT Build 0:fa2de1b79154 607 *
Azure.IoT Build 0:fa2de1b79154 608 * Returns:
Azure.IoT Build 0:fa2de1b79154 609 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 610 *
Azure.IoT Build 0:fa2de1b79154 611 */
Azure.IoT Build 0:fa2de1b79154 612 int SHA512Result(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 613 uint8_t Message_Digest[SHA512HashSize])
Azure.IoT Build 0:fa2de1b79154 614 {
Azure.IoT Build 0:fa2de1b79154 615 return SHA384_512ResultN(context, Message_Digest, SHA512HashSize);
Azure.IoT Build 0:fa2de1b79154 616 }
Azure.IoT Build 0:fa2de1b79154 617
Azure.IoT Build 0:fa2de1b79154 618 /*
Azure.IoT Build 0:fa2de1b79154 619 * SHA384_512PadMessage
Azure.IoT Build 0:fa2de1b79154 620 *
Azure.IoT Build 0:fa2de1b79154 621 * Description:
Azure.IoT Build 0:fa2de1b79154 622 * According to the standard, the message must be padded to an
Azure.IoT Build 0:fa2de1b79154 623 * even 1024 bits. The first padding bit must be a '1'. The
Azure.IoT Build 0:fa2de1b79154 624 * last 128 bits represent the length of the original message.
Azure.IoT Build 0:fa2de1b79154 625 * All bits in between should be 0. This helper function will
Azure.IoT Build 0:fa2de1b79154 626 * pad the message according to those rules by filling the
Azure.IoT Build 0:fa2de1b79154 627 * Message_Block array accordingly. When it returns, it can be
Azure.IoT Build 0:fa2de1b79154 628 * assumed that the message digest has been computed.
Azure.IoT Build 0:fa2de1b79154 629 *
Azure.IoT Build 0:fa2de1b79154 630 * Parameters:
Azure.IoT Build 0:fa2de1b79154 631 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 632 * The context to pad
Azure.IoT Build 0:fa2de1b79154 633 * Pad_Byte: [in]
Azure.IoT Build 0:fa2de1b79154 634 * The last byte to add to the digest before the 0-padding
Azure.IoT Build 0:fa2de1b79154 635 * and length. This will contain the last bits of the message
Azure.IoT Build 0:fa2de1b79154 636 * followed by another single bit. If the message was an
Azure.IoT Build 0:fa2de1b79154 637 * exact multiple of 8-bits long, Pad_Byte will be 0x80.
Azure.IoT Build 0:fa2de1b79154 638 *
Azure.IoT Build 0:fa2de1b79154 639 * Returns:
Azure.IoT Build 0:fa2de1b79154 640 * Nothing.
Azure.IoT Build 0:fa2de1b79154 641 *
Azure.IoT Build 0:fa2de1b79154 642 */
Azure.IoT Build 0:fa2de1b79154 643 static void SHA384_512PadMessage(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 644 uint8_t Pad_Byte)
Azure.IoT Build 0:fa2de1b79154 645 {
Azure.IoT Build 0:fa2de1b79154 646 /*
Azure.IoT Build 0:fa2de1b79154 647 * Check to see if the current message block is too small to hold
Azure.IoT Build 0:fa2de1b79154 648 * the initial padding bits and length. If so, we will pad the
Azure.IoT Build 0:fa2de1b79154 649 * block, process it, and then continue padding into a second
Azure.IoT Build 0:fa2de1b79154 650 * block.
Azure.IoT Build 0:fa2de1b79154 651 */
Azure.IoT Build 0:fa2de1b79154 652 if (context->Message_Block_Index >= (SHA512_Message_Block_Size - 16)) {
Azure.IoT Build 0:fa2de1b79154 653 context->Message_Block[context->Message_Block_Index++] = Pad_Byte;
Azure.IoT Build 0:fa2de1b79154 654 while (context->Message_Block_Index < SHA512_Message_Block_Size)
Azure.IoT Build 0:fa2de1b79154 655 context->Message_Block[context->Message_Block_Index++] = 0;
Azure.IoT Build 0:fa2de1b79154 656
Azure.IoT Build 0:fa2de1b79154 657 SHA384_512ProcessMessageBlock(context);
Azure.IoT Build 0:fa2de1b79154 658 }
Azure.IoT Build 0:fa2de1b79154 659 else
Azure.IoT Build 0:fa2de1b79154 660 context->Message_Block[context->Message_Block_Index++] = Pad_Byte;
Azure.IoT Build 0:fa2de1b79154 661
Azure.IoT Build 0:fa2de1b79154 662 while (context->Message_Block_Index < (SHA512_Message_Block_Size - 16))
Azure.IoT Build 0:fa2de1b79154 663 context->Message_Block[context->Message_Block_Index++] = 0;
Azure.IoT Build 0:fa2de1b79154 664
Azure.IoT Build 0:fa2de1b79154 665 /*
Azure.IoT Build 0:fa2de1b79154 666 * Store the message length as the last 16 octets
Azure.IoT Build 0:fa2de1b79154 667 */
Azure.IoT Build 0:fa2de1b79154 668 #ifdef USE_32BIT_ONLY
Azure.IoT Build 0:fa2de1b79154 669 context->Message_Block[112] = (uint8_t)(context->Length[0] >> 24);
Azure.IoT Build 0:fa2de1b79154 670 context->Message_Block[113] = (uint8_t)(context->Length[0] >> 16);
Azure.IoT Build 0:fa2de1b79154 671 context->Message_Block[114] = (uint8_t)(context->Length[0] >> 8);
Azure.IoT Build 0:fa2de1b79154 672 context->Message_Block[115] = (uint8_t)(context->Length[0]);
Azure.IoT Build 0:fa2de1b79154 673 context->Message_Block[116] = (uint8_t)(context->Length[1] >> 24);
Azure.IoT Build 0:fa2de1b79154 674 context->Message_Block[117] = (uint8_t)(context->Length[1] >> 16);
Azure.IoT Build 0:fa2de1b79154 675 context->Message_Block[118] = (uint8_t)(context->Length[1] >> 8);
Azure.IoT Build 0:fa2de1b79154 676 context->Message_Block[119] = (uint8_t)(context->Length[1]);
Azure.IoT Build 0:fa2de1b79154 677
Azure.IoT Build 0:fa2de1b79154 678 context->Message_Block[120] = (uint8_t)(context->Length[2] >> 24);
Azure.IoT Build 0:fa2de1b79154 679 context->Message_Block[121] = (uint8_t)(context->Length[2] >> 16);
Azure.IoT Build 0:fa2de1b79154 680 context->Message_Block[122] = (uint8_t)(context->Length[2] >> 8);
Azure.IoT Build 0:fa2de1b79154 681 context->Message_Block[123] = (uint8_t)(context->Length[2]);
Azure.IoT Build 0:fa2de1b79154 682 context->Message_Block[124] = (uint8_t)(context->Length[3] >> 24);
Azure.IoT Build 0:fa2de1b79154 683 context->Message_Block[125] = (uint8_t)(context->Length[3] >> 16);
Azure.IoT Build 0:fa2de1b79154 684 context->Message_Block[126] = (uint8_t)(context->Length[3] >> 8);
Azure.IoT Build 0:fa2de1b79154 685 context->Message_Block[127] = (uint8_t)(context->Length[3]);
Azure.IoT Build 0:fa2de1b79154 686 #else /* !USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 687 context->Message_Block[112] = (uint8_t)(context->Length_High >> 56);
Azure.IoT Build 0:fa2de1b79154 688 context->Message_Block[113] = (uint8_t)(context->Length_High >> 48);
Azure.IoT Build 0:fa2de1b79154 689 context->Message_Block[114] = (uint8_t)(context->Length_High >> 40);
Azure.IoT Build 0:fa2de1b79154 690 context->Message_Block[115] = (uint8_t)(context->Length_High >> 32);
Azure.IoT Build 0:fa2de1b79154 691 context->Message_Block[116] = (uint8_t)(context->Length_High >> 24);
Azure.IoT Build 0:fa2de1b79154 692 context->Message_Block[117] = (uint8_t)(context->Length_High >> 16);
Azure.IoT Build 0:fa2de1b79154 693 context->Message_Block[118] = (uint8_t)(context->Length_High >> 8);
Azure.IoT Build 0:fa2de1b79154 694 context->Message_Block[119] = (uint8_t)(context->Length_High);
Azure.IoT Build 0:fa2de1b79154 695
Azure.IoT Build 0:fa2de1b79154 696 context->Message_Block[120] = (uint8_t)(context->Length_Low >> 56);
Azure.IoT Build 0:fa2de1b79154 697 context->Message_Block[121] = (uint8_t)(context->Length_Low >> 48);
Azure.IoT Build 0:fa2de1b79154 698 context->Message_Block[122] = (uint8_t)(context->Length_Low >> 40);
Azure.IoT Build 0:fa2de1b79154 699 context->Message_Block[123] = (uint8_t)(context->Length_Low >> 32);
Azure.IoT Build 0:fa2de1b79154 700 context->Message_Block[124] = (uint8_t)(context->Length_Low >> 24);
Azure.IoT Build 0:fa2de1b79154 701 context->Message_Block[125] = (uint8_t)(context->Length_Low >> 16);
Azure.IoT Build 0:fa2de1b79154 702 context->Message_Block[126] = (uint8_t)(context->Length_Low >> 8);
Azure.IoT Build 0:fa2de1b79154 703 context->Message_Block[127] = (uint8_t)(context->Length_Low);
Azure.IoT Build 0:fa2de1b79154 704 #endif /* USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 705
Azure.IoT Build 0:fa2de1b79154 706 SHA384_512ProcessMessageBlock(context);
Azure.IoT Build 0:fa2de1b79154 707 }
Azure.IoT Build 0:fa2de1b79154 708
Azure.IoT Build 0:fa2de1b79154 709 /*
Azure.IoT Build 0:fa2de1b79154 710 * SHA384_512ProcessMessageBlock
Azure.IoT Build 0:fa2de1b79154 711 *
Azure.IoT Build 0:fa2de1b79154 712 * Description:
Azure.IoT Build 0:fa2de1b79154 713 * This helper function will process the next 1024 bits of the
Azure.IoT Build 0:fa2de1b79154 714 * message stored in the Message_Block array.
Azure.IoT Build 0:fa2de1b79154 715 *
Azure.IoT Build 0:fa2de1b79154 716 * Parameters:
Azure.IoT Build 0:fa2de1b79154 717 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 718 * The SHA context to update
Azure.IoT Build 0:fa2de1b79154 719 *
Azure.IoT Build 0:fa2de1b79154 720 * Returns:
Azure.IoT Build 0:fa2de1b79154 721 * Nothing.
Azure.IoT Build 0:fa2de1b79154 722 *
Azure.IoT Build 0:fa2de1b79154 723 * Comments:
Azure.IoT Build 0:fa2de1b79154 724 * Many of the variable names in this code, especially the
Azure.IoT Build 0:fa2de1b79154 725 * single character names, were used because those were the
Azure.IoT Build 0:fa2de1b79154 726 * names used in the publication.
Azure.IoT Build 0:fa2de1b79154 727 *
Azure.IoT Build 0:fa2de1b79154 728 *
Azure.IoT Build 0:fa2de1b79154 729 */
Azure.IoT Build 0:fa2de1b79154 730 static void SHA384_512ProcessMessageBlock(SHA512Context *context)
Azure.IoT Build 0:fa2de1b79154 731 {
Azure.IoT Build 0:fa2de1b79154 732 /* Constants defined in FIPS-180-2, section 4.2.3 */
Azure.IoT Build 0:fa2de1b79154 733 #ifdef USE_32BIT_ONLY
Azure.IoT Build 0:fa2de1b79154 734 static const uint32_t K[80 * 2] = {
Azure.IoT Build 0:fa2de1b79154 735 0x428A2F98, 0xD728AE22, 0x71374491, 0x23EF65CD, 0xB5C0FBCF,
Azure.IoT Build 0:fa2de1b79154 736 0xEC4D3B2F, 0xE9B5DBA5, 0x8189DBBC, 0x3956C25B, 0xF348B538,
Azure.IoT Build 0:fa2de1b79154 737 0x59F111F1, 0xB605D019, 0x923F82A4, 0xAF194F9B, 0xAB1C5ED5,
Azure.IoT Build 0:fa2de1b79154 738 0xDA6D8118, 0xD807AA98, 0xA3030242, 0x12835B01, 0x45706FBE,
Azure.IoT Build 0:fa2de1b79154 739 0x243185BE, 0x4EE4B28C, 0x550C7DC3, 0xD5FFB4E2, 0x72BE5D74,
Azure.IoT Build 0:fa2de1b79154 740 0xF27B896F, 0x80DEB1FE, 0x3B1696B1, 0x9BDC06A7, 0x25C71235,
Azure.IoT Build 0:fa2de1b79154 741 0xC19BF174, 0xCF692694, 0xE49B69C1, 0x9EF14AD2, 0xEFBE4786,
Azure.IoT Build 0:fa2de1b79154 742 0x384F25E3, 0x0FC19DC6, 0x8B8CD5B5, 0x240CA1CC, 0x77AC9C65,
Azure.IoT Build 0:fa2de1b79154 743 0x2DE92C6F, 0x592B0275, 0x4A7484AA, 0x6EA6E483, 0x5CB0A9DC,
Azure.IoT Build 0:fa2de1b79154 744 0xBD41FBD4, 0x76F988DA, 0x831153B5, 0x983E5152, 0xEE66DFAB,
Azure.IoT Build 0:fa2de1b79154 745 0xA831C66D, 0x2DB43210, 0xB00327C8, 0x98FB213F, 0xBF597FC7,
Azure.IoT Build 0:fa2de1b79154 746 0xBEEF0EE4, 0xC6E00BF3, 0x3DA88FC2, 0xD5A79147, 0x930AA725,
Azure.IoT Build 0:fa2de1b79154 747 0x06CA6351, 0xE003826F, 0x14292967, 0x0A0E6E70, 0x27B70A85,
Azure.IoT Build 0:fa2de1b79154 748 0x46D22FFC, 0x2E1B2138, 0x5C26C926, 0x4D2C6DFC, 0x5AC42AED,
Azure.IoT Build 0:fa2de1b79154 749 0x53380D13, 0x9D95B3DF, 0x650A7354, 0x8BAF63DE, 0x766A0ABB,
Azure.IoT Build 0:fa2de1b79154 750 0x3C77B2A8, 0x81C2C92E, 0x47EDAEE6, 0x92722C85, 0x1482353B,
Azure.IoT Build 0:fa2de1b79154 751 0xA2BFE8A1, 0x4CF10364, 0xA81A664B, 0xBC423001, 0xC24B8B70,
Azure.IoT Build 0:fa2de1b79154 752 0xD0F89791, 0xC76C51A3, 0x0654BE30, 0xD192E819, 0xD6EF5218,
Azure.IoT Build 0:fa2de1b79154 753 0xD6990624, 0x5565A910, 0xF40E3585, 0x5771202A, 0x106AA070,
Azure.IoT Build 0:fa2de1b79154 754 0x32BBD1B8, 0x19A4C116, 0xB8D2D0C8, 0x1E376C08, 0x5141AB53,
Azure.IoT Build 0:fa2de1b79154 755 0x2748774C, 0xDF8EEB99, 0x34B0BCB5, 0xE19B48A8, 0x391C0CB3,
Azure.IoT Build 0:fa2de1b79154 756 0xC5C95A63, 0x4ED8AA4A, 0xE3418ACB, 0x5B9CCA4F, 0x7763E373,
Azure.IoT Build 0:fa2de1b79154 757 0x682E6FF3, 0xD6B2B8A3, 0x748F82EE, 0x5DEFB2FC, 0x78A5636F,
Azure.IoT Build 0:fa2de1b79154 758 0x43172F60, 0x84C87814, 0xA1F0AB72, 0x8CC70208, 0x1A6439EC,
Azure.IoT Build 0:fa2de1b79154 759 0x90BEFFFA, 0x23631E28, 0xA4506CEB, 0xDE82BDE9, 0xBEF9A3F7,
Azure.IoT Build 0:fa2de1b79154 760 0xB2C67915, 0xC67178F2, 0xE372532B, 0xCA273ECE, 0xEA26619C,
Azure.IoT Build 0:fa2de1b79154 761 0xD186B8C7, 0x21C0C207, 0xEADA7DD6, 0xCDE0EB1E, 0xF57D4F7F,
Azure.IoT Build 0:fa2de1b79154 762 0xEE6ED178, 0x06F067AA, 0x72176FBA, 0x0A637DC5, 0xA2C898A6,
Azure.IoT Build 0:fa2de1b79154 763 0x113F9804, 0xBEF90DAE, 0x1B710B35, 0x131C471B, 0x28DB77F5,
Azure.IoT Build 0:fa2de1b79154 764 0x23047D84, 0x32CAAB7B, 0x40C72493, 0x3C9EBE0A, 0x15C9BEBC,
Azure.IoT Build 0:fa2de1b79154 765 0x431D67C4, 0x9C100D4C, 0x4CC5D4BE, 0xCB3E42B6, 0x597F299C,
Azure.IoT Build 0:fa2de1b79154 766 0xFC657E2A, 0x5FCB6FAB, 0x3AD6FAEC, 0x6C44198C, 0x4A475817
Azure.IoT Build 0:fa2de1b79154 767 };
Azure.IoT Build 0:fa2de1b79154 768 int t, t2, t8; /* Loop counter */
Azure.IoT Build 0:fa2de1b79154 769 uint32_t temp1[2], temp2[2], /* Temporary word values */
Azure.IoT Build 0:fa2de1b79154 770 temp3[2], temp4[2], temp5[2];
Azure.IoT Build 0:fa2de1b79154 771 uint32_t W[2 * 80]; /* Word sequence */
Azure.IoT Build 0:fa2de1b79154 772 uint32_t A[2], B[2], C[2], D[2], /* Word buffers */
Azure.IoT Build 0:fa2de1b79154 773 E[2], F[2], G[2], H[2];
Azure.IoT Build 0:fa2de1b79154 774
Azure.IoT Build 0:fa2de1b79154 775 /* Initialize the first 16 words in the array W */
Azure.IoT Build 0:fa2de1b79154 776 for (t = t2 = t8 = 0; t < 16; t++, t8 += 8) {
Azure.IoT Build 0:fa2de1b79154 777 W[t2++] = ((((uint32_t)context->Message_Block[t8])) << 24) |
Azure.IoT Build 0:fa2de1b79154 778 ((((uint32_t)context->Message_Block[t8 + 1])) << 16) |
Azure.IoT Build 0:fa2de1b79154 779 ((((uint32_t)context->Message_Block[t8 + 2])) << 8) |
Azure.IoT Build 0:fa2de1b79154 780 ((((uint32_t)context->Message_Block[t8 + 3])));
Azure.IoT Build 0:fa2de1b79154 781 W[t2++] = ((((uint32_t)context->Message_Block[t8 + 4])) << 24) |
Azure.IoT Build 0:fa2de1b79154 782 ((((uint32_t)context->Message_Block[t8 + 5])) << 16) |
Azure.IoT Build 0:fa2de1b79154 783 ((((uint32_t)context->Message_Block[t8 + 6])) << 8) |
Azure.IoT Build 0:fa2de1b79154 784 ((((uint32_t)context->Message_Block[t8 + 7])));
Azure.IoT Build 0:fa2de1b79154 785 }
Azure.IoT Build 0:fa2de1b79154 786
Azure.IoT Build 0:fa2de1b79154 787 for (t = 16; t < 80; t++, t2 += 2) {
Azure.IoT Build 0:fa2de1b79154 788 /* W[t] = SHA512_sigma1(W[t-2]) + W[t-7] +
Azure.IoT Build 0:fa2de1b79154 789 SHA512_sigma0(W[t-15]) + W[t-16]; */
Azure.IoT Build 0:fa2de1b79154 790 uint32_t *Wt2 = &W[t2 - 2 * 2];
Azure.IoT Build 0:fa2de1b79154 791 uint32_t *Wt7 = &W[t2 - 7 * 2];
Azure.IoT Build 0:fa2de1b79154 792 uint32_t *Wt15 = &W[t2 - 15 * 2];
Azure.IoT Build 0:fa2de1b79154 793 uint32_t *Wt16 = &W[t2 - 16 * 2];
Azure.IoT Build 0:fa2de1b79154 794 SHA512_sigma1(Wt2, temp1);
Azure.IoT Build 0:fa2de1b79154 795 SHA512_ADD(temp1, Wt7, temp2);
Azure.IoT Build 0:fa2de1b79154 796 SHA512_sigma0(Wt15, temp1);
Azure.IoT Build 0:fa2de1b79154 797 SHA512_ADD(temp1, Wt16, temp3);
Azure.IoT Build 0:fa2de1b79154 798 SHA512_ADD(temp2, temp3, &W[t2]);
Azure.IoT Build 0:fa2de1b79154 799 }
Azure.IoT Build 0:fa2de1b79154 800
Azure.IoT Build 0:fa2de1b79154 801 A[0] = context->Intermediate_Hash[0];
Azure.IoT Build 0:fa2de1b79154 802 A[1] = context->Intermediate_Hash[1];
Azure.IoT Build 0:fa2de1b79154 803 B[0] = context->Intermediate_Hash[2];
Azure.IoT Build 0:fa2de1b79154 804 B[1] = context->Intermediate_Hash[3];
Azure.IoT Build 0:fa2de1b79154 805 C[0] = context->Intermediate_Hash[4];
Azure.IoT Build 0:fa2de1b79154 806 C[1] = context->Intermediate_Hash[5];
Azure.IoT Build 0:fa2de1b79154 807 D[0] = context->Intermediate_Hash[6];
Azure.IoT Build 0:fa2de1b79154 808 D[1] = context->Intermediate_Hash[7];
Azure.IoT Build 0:fa2de1b79154 809 E[0] = context->Intermediate_Hash[8];
Azure.IoT Build 0:fa2de1b79154 810 E[1] = context->Intermediate_Hash[9];
Azure.IoT Build 0:fa2de1b79154 811 F[0] = context->Intermediate_Hash[10];
Azure.IoT Build 0:fa2de1b79154 812 F[1] = context->Intermediate_Hash[11];
Azure.IoT Build 0:fa2de1b79154 813 G[0] = context->Intermediate_Hash[12];
Azure.IoT Build 0:fa2de1b79154 814 G[1] = context->Intermediate_Hash[13];
Azure.IoT Build 0:fa2de1b79154 815 H[0] = context->Intermediate_Hash[14];
Azure.IoT Build 0:fa2de1b79154 816 H[1] = context->Intermediate_Hash[15];
Azure.IoT Build 0:fa2de1b79154 817
Azure.IoT Build 0:fa2de1b79154 818 for (t = t2 = 0; t < 80; t++, t2 += 2) {
Azure.IoT Build 0:fa2de1b79154 819 /*
Azure.IoT Build 0:fa2de1b79154 820 * temp1 = H + SHA512_SIGMA1(E) + SHA_Ch(E,F,G) + K[t] + W[t];
Azure.IoT Build 0:fa2de1b79154 821 */
Azure.IoT Build 0:fa2de1b79154 822 SHA512_SIGMA1(E, temp1);
Azure.IoT Build 0:fa2de1b79154 823 SHA512_ADD(H, temp1, temp2);
Azure.IoT Build 0:fa2de1b79154 824 SHA_Ch(E, F, G, temp3);
Azure.IoT Build 0:fa2de1b79154 825 SHA512_ADD(temp2, temp3, temp4);
Azure.IoT Build 0:fa2de1b79154 826 SHA512_ADD(&K[t2], &W[t2], temp5);
Azure.IoT Build 0:fa2de1b79154 827 SHA512_ADD(temp4, temp5, temp1);
Azure.IoT Build 0:fa2de1b79154 828 /*
Azure.IoT Build 0:fa2de1b79154 829 * temp2 = SHA512_SIGMA0(A) + SHA_Maj(A,B,C);
Azure.IoT Build 0:fa2de1b79154 830 */
Azure.IoT Build 0:fa2de1b79154 831 SHA512_SIGMA0(A, temp3);
Azure.IoT Build 0:fa2de1b79154 832 SHA_Maj(A, B, C, temp4);
Azure.IoT Build 0:fa2de1b79154 833 SHA512_ADD(temp3, temp4, temp2);
Azure.IoT Build 0:fa2de1b79154 834 H[0] = G[0]; H[1] = G[1];
Azure.IoT Build 0:fa2de1b79154 835 G[0] = F[0]; G[1] = F[1];
Azure.IoT Build 0:fa2de1b79154 836 F[0] = E[0]; F[1] = E[1];
Azure.IoT Build 0:fa2de1b79154 837 SHA512_ADD(D, temp1, E);
Azure.IoT Build 0:fa2de1b79154 838 D[0] = C[0]; D[1] = C[1];
Azure.IoT Build 0:fa2de1b79154 839 C[0] = B[0]; C[1] = B[1];
Azure.IoT Build 0:fa2de1b79154 840 B[0] = A[0]; B[1] = A[1];
Azure.IoT Build 0:fa2de1b79154 841 SHA512_ADD(temp1, temp2, A);
Azure.IoT Build 0:fa2de1b79154 842 }
Azure.IoT Build 0:fa2de1b79154 843
Azure.IoT Build 0:fa2de1b79154 844 SHA512_ADDTO2(&context->Intermediate_Hash[0], A);
Azure.IoT Build 0:fa2de1b79154 845 SHA512_ADDTO2(&context->Intermediate_Hash[2], B);
Azure.IoT Build 0:fa2de1b79154 846 SHA512_ADDTO2(&context->Intermediate_Hash[4], C);
Azure.IoT Build 0:fa2de1b79154 847 SHA512_ADDTO2(&context->Intermediate_Hash[6], D);
Azure.IoT Build 0:fa2de1b79154 848 SHA512_ADDTO2(&context->Intermediate_Hash[8], E);
Azure.IoT Build 0:fa2de1b79154 849 SHA512_ADDTO2(&context->Intermediate_Hash[10], F);
Azure.IoT Build 0:fa2de1b79154 850 SHA512_ADDTO2(&context->Intermediate_Hash[12], G);
Azure.IoT Build 0:fa2de1b79154 851 SHA512_ADDTO2(&context->Intermediate_Hash[14], H);
Azure.IoT Build 0:fa2de1b79154 852
Azure.IoT Build 0:fa2de1b79154 853 #else /* !USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 854 static const uint64_t K[80] = {
Azure.IoT Build 0:fa2de1b79154 855 0x428A2F98D728AE22ull, 0x7137449123EF65CDull, 0xB5C0FBCFEC4D3B2Full,
Azure.IoT Build 0:fa2de1b79154 856 0xE9B5DBA58189DBBCull, 0x3956C25BF348B538ull, 0x59F111F1B605D019ull,
Azure.IoT Build 0:fa2de1b79154 857 0x923F82A4AF194F9Bull, 0xAB1C5ED5DA6D8118ull, 0xD807AA98A3030242ull,
Azure.IoT Build 0:fa2de1b79154 858 0x12835B0145706FBEull, 0x243185BE4EE4B28Cull, 0x550C7DC3D5FFB4E2ull,
Azure.IoT Build 0:fa2de1b79154 859 0x72BE5D74F27B896Full, 0x80DEB1FE3B1696B1ull, 0x9BDC06A725C71235ull,
Azure.IoT Build 0:fa2de1b79154 860 0xC19BF174CF692694ull, 0xE49B69C19EF14AD2ull, 0xEFBE4786384F25E3ull,
Azure.IoT Build 0:fa2de1b79154 861 0x0FC19DC68B8CD5B5ull, 0x240CA1CC77AC9C65ull, 0x2DE92C6F592B0275ull,
Azure.IoT Build 0:fa2de1b79154 862 0x4A7484AA6EA6E483ull, 0x5CB0A9DCBD41FBD4ull, 0x76F988DA831153B5ull,
Azure.IoT Build 0:fa2de1b79154 863 0x983E5152EE66DFABull, 0xA831C66D2DB43210ull, 0xB00327C898FB213Full,
Azure.IoT Build 0:fa2de1b79154 864 0xBF597FC7BEEF0EE4ull, 0xC6E00BF33DA88FC2ull, 0xD5A79147930AA725ull,
Azure.IoT Build 0:fa2de1b79154 865 0x06CA6351E003826Full, 0x142929670A0E6E70ull, 0x27B70A8546D22FFCull,
Azure.IoT Build 0:fa2de1b79154 866 0x2E1B21385C26C926ull, 0x4D2C6DFC5AC42AEDull, 0x53380D139D95B3DFull,
Azure.IoT Build 0:fa2de1b79154 867 0x650A73548BAF63DEull, 0x766A0ABB3C77B2A8ull, 0x81C2C92E47EDAEE6ull,
Azure.IoT Build 0:fa2de1b79154 868 0x92722C851482353Bull, 0xA2BFE8A14CF10364ull, 0xA81A664BBC423001ull,
Azure.IoT Build 0:fa2de1b79154 869 0xC24B8B70D0F89791ull, 0xC76C51A30654BE30ull, 0xD192E819D6EF5218ull,
Azure.IoT Build 0:fa2de1b79154 870 0xD69906245565A910ull, 0xF40E35855771202Aull, 0x106AA07032BBD1B8ull,
Azure.IoT Build 0:fa2de1b79154 871 0x19A4C116B8D2D0C8ull, 0x1E376C085141AB53ull, 0x2748774CDF8EEB99ull,
Azure.IoT Build 0:fa2de1b79154 872 0x34B0BCB5E19B48A8ull, 0x391C0CB3C5C95A63ull, 0x4ED8AA4AE3418ACBull,
Azure.IoT Build 0:fa2de1b79154 873 0x5B9CCA4F7763E373ull, 0x682E6FF3D6B2B8A3ull, 0x748F82EE5DEFB2FCull,
Azure.IoT Build 0:fa2de1b79154 874 0x78A5636F43172F60ull, 0x84C87814A1F0AB72ull, 0x8CC702081A6439ECull,
Azure.IoT Build 0:fa2de1b79154 875 0x90BEFFFA23631E28ull, 0xA4506CEBDE82BDE9ull, 0xBEF9A3F7B2C67915ull,
Azure.IoT Build 0:fa2de1b79154 876 0xC67178F2E372532Bull, 0xCA273ECEEA26619Cull, 0xD186B8C721C0C207ull,
Azure.IoT Build 0:fa2de1b79154 877 0xEADA7DD6CDE0EB1Eull, 0xF57D4F7FEE6ED178ull, 0x06F067AA72176FBAull,
Azure.IoT Build 0:fa2de1b79154 878 0x0A637DC5A2C898A6ull, 0x113F9804BEF90DAEull, 0x1B710B35131C471Bull,
Azure.IoT Build 0:fa2de1b79154 879 0x28DB77F523047D84ull, 0x32CAAB7B40C72493ull, 0x3C9EBE0A15C9BEBCull,
Azure.IoT Build 0:fa2de1b79154 880 0x431D67C49C100D4Cull, 0x4CC5D4BECB3E42B6ull, 0x597F299CFC657E2Aull,
Azure.IoT Build 0:fa2de1b79154 881 0x5FCB6FAB3AD6FAECull, 0x6C44198C4A475817ull
Azure.IoT Build 0:fa2de1b79154 882 };
Azure.IoT Build 0:fa2de1b79154 883 int t, t8; /* Loop counter */
Azure.IoT Build 0:fa2de1b79154 884 uint64_t temp1, temp2; /* Temporary word value */
Azure.IoT Build 0:fa2de1b79154 885 uint64_t W[80]; /* Word sequence */
Azure.IoT Build 0:fa2de1b79154 886 uint64_t A, B, C, D, E, F, G, H; /* Word buffers */
Azure.IoT Build 0:fa2de1b79154 887
Azure.IoT Build 0:fa2de1b79154 888 /*
Azure.IoT Build 0:fa2de1b79154 889 * Initialize the first 16 words in the array W
Azure.IoT Build 0:fa2de1b79154 890 */
Azure.IoT Build 0:fa2de1b79154 891 for (t = t8 = 0; t < 16; t++, t8 += 8)
Azure.IoT Build 0:fa2de1b79154 892 W[t] = ((uint64_t)(context->Message_Block[t8]) << 56) |
Azure.IoT Build 0:fa2de1b79154 893 ((uint64_t)(context->Message_Block[t8 + 1]) << 48) |
Azure.IoT Build 0:fa2de1b79154 894 ((uint64_t)(context->Message_Block[t8 + 2]) << 40) |
Azure.IoT Build 0:fa2de1b79154 895 ((uint64_t)(context->Message_Block[t8 + 3]) << 32) |
Azure.IoT Build 0:fa2de1b79154 896 ((uint64_t)(context->Message_Block[t8 + 4]) << 24) |
Azure.IoT Build 0:fa2de1b79154 897 ((uint64_t)(context->Message_Block[t8 + 5]) << 16) |
Azure.IoT Build 0:fa2de1b79154 898 ((uint64_t)(context->Message_Block[t8 + 6]) << 8) |
Azure.IoT Build 0:fa2de1b79154 899 ((uint64_t)(context->Message_Block[t8 + 7]));
Azure.IoT Build 0:fa2de1b79154 900
Azure.IoT Build 0:fa2de1b79154 901 for (t = 16; t < 80; t++)
Azure.IoT Build 0:fa2de1b79154 902 W[t] = SHA512_sigma1(W[t - 2]) + W[t - 7] +
Azure.IoT Build 0:fa2de1b79154 903 SHA512_sigma0(W[t - 15]) + W[t - 16];
Azure.IoT Build 0:fa2de1b79154 904
Azure.IoT Build 0:fa2de1b79154 905 A = context->Intermediate_Hash[0];
Azure.IoT Build 0:fa2de1b79154 906 B = context->Intermediate_Hash[1];
Azure.IoT Build 0:fa2de1b79154 907 C = context->Intermediate_Hash[2];
Azure.IoT Build 0:fa2de1b79154 908 D = context->Intermediate_Hash[3];
Azure.IoT Build 0:fa2de1b79154 909 E = context->Intermediate_Hash[4];
Azure.IoT Build 0:fa2de1b79154 910 F = context->Intermediate_Hash[5];
Azure.IoT Build 0:fa2de1b79154 911 G = context->Intermediate_Hash[6];
Azure.IoT Build 0:fa2de1b79154 912 H = context->Intermediate_Hash[7];
Azure.IoT Build 0:fa2de1b79154 913
Azure.IoT Build 0:fa2de1b79154 914 for (t = 0; t < 80; t++) {
Azure.IoT Build 0:fa2de1b79154 915 temp1 = H + SHA512_SIGMA1(E) + SHA_Ch(E, F, G) + K[t] + W[t];
Azure.IoT Build 0:fa2de1b79154 916 temp2 = SHA512_SIGMA0(A) + SHA_Maj(A, B, C);
Azure.IoT Build 0:fa2de1b79154 917 H = G;
Azure.IoT Build 0:fa2de1b79154 918 G = F;
Azure.IoT Build 0:fa2de1b79154 919 F = E;
Azure.IoT Build 0:fa2de1b79154 920 E = D + temp1;
Azure.IoT Build 0:fa2de1b79154 921 D = C;
Azure.IoT Build 0:fa2de1b79154 922 C = B;
Azure.IoT Build 0:fa2de1b79154 923 B = A;
Azure.IoT Build 0:fa2de1b79154 924 A = temp1 + temp2;
Azure.IoT Build 0:fa2de1b79154 925 }
Azure.IoT Build 0:fa2de1b79154 926
Azure.IoT Build 0:fa2de1b79154 927 context->Intermediate_Hash[0] += A;
Azure.IoT Build 0:fa2de1b79154 928 context->Intermediate_Hash[1] += B;
Azure.IoT Build 0:fa2de1b79154 929 context->Intermediate_Hash[2] += C;
Azure.IoT Build 0:fa2de1b79154 930 context->Intermediate_Hash[3] += D;
Azure.IoT Build 0:fa2de1b79154 931 context->Intermediate_Hash[4] += E;
Azure.IoT Build 0:fa2de1b79154 932 context->Intermediate_Hash[5] += F;
Azure.IoT Build 0:fa2de1b79154 933 context->Intermediate_Hash[6] += G;
Azure.IoT Build 0:fa2de1b79154 934 context->Intermediate_Hash[7] += H;
Azure.IoT Build 0:fa2de1b79154 935 #endif /* USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 936
Azure.IoT Build 0:fa2de1b79154 937 context->Message_Block_Index = 0;
Azure.IoT Build 0:fa2de1b79154 938 }
Azure.IoT Build 0:fa2de1b79154 939
Azure.IoT Build 0:fa2de1b79154 940 /*
Azure.IoT Build 0:fa2de1b79154 941 * SHA384_512Reset
Azure.IoT Build 0:fa2de1b79154 942 *
Azure.IoT Build 0:fa2de1b79154 943 * Description:
Azure.IoT Build 0:fa2de1b79154 944 * This helper function will initialize the SHA512Context in
Azure.IoT Build 0:fa2de1b79154 945 * preparation for computing a new SHA384 or SHA512 message
Azure.IoT Build 0:fa2de1b79154 946 * digest.
Azure.IoT Build 0:fa2de1b79154 947 *
Azure.IoT Build 0:fa2de1b79154 948 * Parameters:
Azure.IoT Build 0:fa2de1b79154 949 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 950 * The context to reset.
Azure.IoT Build 0:fa2de1b79154 951 * H0
Azure.IoT Build 0:fa2de1b79154 952 * The initial hash value to use.
Azure.IoT Build 0:fa2de1b79154 953 *
Azure.IoT Build 0:fa2de1b79154 954 * Returns:
Azure.IoT Build 0:fa2de1b79154 955 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 956 *
Azure.IoT Build 0:fa2de1b79154 957 */
Azure.IoT Build 0:fa2de1b79154 958 #ifdef USE_32BIT_ONLY
Azure.IoT Build 0:fa2de1b79154 959 static int SHA384_512Reset(SHA512Context *context, uint32_t H0[])
Azure.IoT Build 0:fa2de1b79154 960 #else /* !USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 961 static int SHA384_512Reset(SHA512Context *context, uint64_t H0[])
Azure.IoT Build 0:fa2de1b79154 962 #endif /* USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 963 {
Azure.IoT Build 0:fa2de1b79154 964 int i;
Azure.IoT Build 0:fa2de1b79154 965 if (!context)
Azure.IoT Build 0:fa2de1b79154 966 return shaNull;
Azure.IoT Build 0:fa2de1b79154 967
Azure.IoT Build 0:fa2de1b79154 968 context->Message_Block_Index = 0;
Azure.IoT Build 0:fa2de1b79154 969
Azure.IoT Build 0:fa2de1b79154 970 #ifdef USE_32BIT_ONLY
Azure.IoT Build 0:fa2de1b79154 971 context->Length[0] = context->Length[1] = 0;
Azure.IoT Build 0:fa2de1b79154 972 context->Length[2] = context->Length[3] = 0;
Azure.IoT Build 0:fa2de1b79154 973
Azure.IoT Build 0:fa2de1b79154 974 for (i = 0; i < SHA512HashSize / 4; i++)
Azure.IoT Build 0:fa2de1b79154 975 context->Intermediate_Hash[i] = H0[i];
Azure.IoT Build 0:fa2de1b79154 976 #else /* !USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 977 context->Length_High = context->Length_Low = 0;
Azure.IoT Build 0:fa2de1b79154 978
Azure.IoT Build 0:fa2de1b79154 979 for (i = 0; i < SHA512HashSize / 8; i++)
Azure.IoT Build 0:fa2de1b79154 980 context->Intermediate_Hash[i] = H0[i];
Azure.IoT Build 0:fa2de1b79154 981 #endif /* USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 982
Azure.IoT Build 0:fa2de1b79154 983 context->Computed = 0;
Azure.IoT Build 0:fa2de1b79154 984 context->Corrupted = 0;
Azure.IoT Build 0:fa2de1b79154 985
Azure.IoT Build 0:fa2de1b79154 986 return shaSuccess;
Azure.IoT Build 0:fa2de1b79154 987 }
Azure.IoT Build 0:fa2de1b79154 988
Azure.IoT Build 0:fa2de1b79154 989 /*
Azure.IoT Build 0:fa2de1b79154 990 * SHA384_512ResultN
Azure.IoT Build 0:fa2de1b79154 991 *
Azure.IoT Build 0:fa2de1b79154 992 * Description:
Azure.IoT Build 0:fa2de1b79154 993 * This helper function will return the 384-bit or 512-bit message
Azure.IoT Build 0:fa2de1b79154 994 * digest into the Message_Digest array provided by the caller.
Azure.IoT Build 0:fa2de1b79154 995 * NOTE: The first octet of hash is stored in the 0th element,
Azure.IoT Build 0:fa2de1b79154 996 * the last octet of hash in the 48th/64th element.
Azure.IoT Build 0:fa2de1b79154 997 *
Azure.IoT Build 0:fa2de1b79154 998 * Parameters:
Azure.IoT Build 0:fa2de1b79154 999 * context: [in/out]
Azure.IoT Build 0:fa2de1b79154 1000 * The context to use to calculate the SHA hash.
Azure.IoT Build 0:fa2de1b79154 1001 * Message_Digest: [out]
Azure.IoT Build 0:fa2de1b79154 1002 * Where the digest is returned.
Azure.IoT Build 0:fa2de1b79154 1003 * HashSize: [in]
Azure.IoT Build 0:fa2de1b79154 1004 * The size of the hash, either 48 or 64.
Azure.IoT Build 0:fa2de1b79154 1005 *
Azure.IoT Build 0:fa2de1b79154 1006 * Returns:
Azure.IoT Build 0:fa2de1b79154 1007 * sha Error Code.
Azure.IoT Build 0:fa2de1b79154 1008 *
Azure.IoT Build 0:fa2de1b79154 1009 */
Azure.IoT Build 0:fa2de1b79154 1010 static int SHA384_512ResultN(SHA512Context *context,
Azure.IoT Build 0:fa2de1b79154 1011 uint8_t Message_Digest[], int HashSize)
Azure.IoT Build 0:fa2de1b79154 1012 {
Azure.IoT Build 0:fa2de1b79154 1013 int i;
Azure.IoT Build 0:fa2de1b79154 1014
Azure.IoT Build 0:fa2de1b79154 1015 #ifdef USE_32BIT_ONLY
Azure.IoT Build 0:fa2de1b79154 1016 int i2;
Azure.IoT Build 0:fa2de1b79154 1017 #endif /* USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 1018
Azure.IoT Build 0:fa2de1b79154 1019 if (!context || !Message_Digest)
Azure.IoT Build 0:fa2de1b79154 1020 return shaNull;
Azure.IoT Build 0:fa2de1b79154 1021
Azure.IoT Build 0:fa2de1b79154 1022 if (context->Corrupted)
Azure.IoT Build 0:fa2de1b79154 1023 return context->Corrupted;
Azure.IoT Build 0:fa2de1b79154 1024
Azure.IoT Build 0:fa2de1b79154 1025 if (!context->Computed)
Azure.IoT Build 0:fa2de1b79154 1026 SHA384_512Finalize(context, 0x80);
Azure.IoT Build 0:fa2de1b79154 1027
Azure.IoT Build 0:fa2de1b79154 1028 #ifdef USE_32BIT_ONLY
Azure.IoT Build 0:fa2de1b79154 1029 for (i = i2 = 0; i < HashSize;) {
Azure.IoT Build 0:fa2de1b79154 1030 Message_Digest[i++] = (uint8_t)(context->Intermediate_Hash[i2] >> 24);
Azure.IoT Build 0:fa2de1b79154 1031 Message_Digest[i++] = (uint8_t)(context->Intermediate_Hash[i2] >> 16);
Azure.IoT Build 0:fa2de1b79154 1032 Message_Digest[i++] = (uint8_t)(context->Intermediate_Hash[i2] >> 8);
Azure.IoT Build 0:fa2de1b79154 1033 Message_Digest[i++] = (uint8_t)(context->Intermediate_Hash[i2++]);
Azure.IoT Build 0:fa2de1b79154 1034 Message_Digest[i++] = (uint8_t)(context->Intermediate_Hash[i2] >> 24);
Azure.IoT Build 0:fa2de1b79154 1035 Message_Digest[i++] = (uint8_t)(context->Intermediate_Hash[i2] >> 16);
Azure.IoT Build 0:fa2de1b79154 1036 Message_Digest[i++] = (uint8_t)(context->Intermediate_Hash[i2] >> 8);
Azure.IoT Build 0:fa2de1b79154 1037 Message_Digest[i++] = (uint8_t)(context->Intermediate_Hash[i2++]);
Azure.IoT Build 0:fa2de1b79154 1038 }
Azure.IoT Build 0:fa2de1b79154 1039 #else /* !USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 1040 for (i = 0; i < HashSize; ++i)
Azure.IoT Build 0:fa2de1b79154 1041 Message_Digest[i] = (uint8_t)
Azure.IoT Build 0:fa2de1b79154 1042 (context->Intermediate_Hash[i >> 3] >> 8 * (7 - (i % 8)));
Azure.IoT Build 0:fa2de1b79154 1043 #endif /* USE_32BIT_ONLY */
Azure.IoT Build 0:fa2de1b79154 1044
Azure.IoT Build 0:fa2de1b79154 1045 return shaSuccess;
Azure.IoT Build 0:fa2de1b79154 1046 }
Azure.IoT Build 0:fa2de1b79154 1047