| /************************* sha384-512.c ************************/ |
| /***************** See RFC 6234 for details. *******************/ |
| /* Copyright (c) 2011 IETF Trust and the persons identified as */ |
| /* authors of the code. All rights reserved. */ |
| /* See sha.h for terms of use and redistribution. */ |
| |
| /* |
| * Description: |
| * This file implements the Secure Hash Algorithms SHA-384 and |
| * SHA-512 as defined in the U.S. National Institute of Standards |
| * and Technology Federal Information Processing Standards |
| * Publication (FIPS PUB) 180-3 published in October 2008 |
| * and formerly defined in its predecessors, FIPS PUB 180-1 |
| * and FIP PUB 180-2. |
| * |
| * A combined document showing all algorithms is available at |
| * http://csrc.nist.gov/publications/fips/ |
| * fips180-3/fips180-3_final.pdf |
| * |
| * The SHA-384 and SHA-512 algorithms produce 384-bit and 512-bit |
| * message digests for a given data stream. It should take about |
| * 2**n steps to find a message with the same digest as a given |
| * message and 2**(n/2) to find any two messages with the same |
| * digest, when n is the digest size in bits. Therefore, this |
| * algorithm can serve as a means of providing a |
| * "fingerprint" for a message. |
| * |
| * Portability Issues: |
| * SHA-384 and SHA-512 are defined in terms of 64-bit "words", |
| * but if USE_32BIT_ONLY is #defined, this code is implemented in |
| * terms of 32-bit "words". This code uses <stdint.h> (included |
| * via "sha.h") to define the 64-, 32- and 8-bit unsigned integer |
| * types. If your C compiler does not support 64-bit unsigned |
| * integers and you do not #define USE_32BIT_ONLY, this code is |
| * not appropriate. |
| * |
| * Caveats: |
| * SHA-384 and SHA-512 are designed to work with messages less |
| * than 2^128 bits long. This implementation uses SHA384/512Input() |
| * to hash the bits that are a multiple of the size of an 8-bit |
| * octet, and then optionally uses SHA384/256FinalBits() |
| * to hash the final few bits of the input. |
| * |
| */ |
| |
| #include "sha.h" |
| |
| #ifdef USE_32BIT_ONLY |
| /* |
| * Define 64-bit arithmetic in terms of 32-bit arithmetic. |
| * Each 64-bit number is represented in a 2-word array. |
| * All macros are defined such that the result is the last parameter. |
| */ |
| |
| /* |
| * Define shift, rotate left, and rotate right functions |
| */ |
| #define SHA512_SHR(bits, word, ret) ( \ |
| /* (((uint64_t)((word))) >> (bits)) */ \ |
| (ret)[0] = (((bits) < 32) && ((bits) >= 0)) ? \ |
| ((word)[0] >> (bits)) : 0, \ |
| (ret)[1] = ((bits) > 32) ? ((word)[0] >> ((bits) - 32)) : \ |
| ((bits) == 32) ? (word)[0] : \ |
| ((bits) >= 0) ? \ |
| (((word)[0] << (32 - (bits))) | \ |
| ((word)[1] >> (bits))) : 0 ) |
| |
| #define SHA512_SHL(bits, word, ret) ( \ |
| /* (((uint64_t)(word)) << (bits)) */ \ |
| (ret)[0] = ((bits) > 32) ? ((word)[1] << ((bits) - 32)) : \ |
| ((bits) == 32) ? (word)[1] : \ |
| ((bits) >= 0) ? \ |
| (((word)[0] << (bits)) | \ |
| ((word)[1] >> (32 - (bits)))) : \ |
| 0, \ |
| (ret)[1] = (((bits) < 32) && ((bits) >= 0)) ? \ |
| ((word)[1] << (bits)) : 0 ) |
| |
| /* |
| * Define 64-bit OR |
| */ |
| #define SHA512_OR(word1, word2, ret) ( \ |
| (ret)[0] = (word1)[0] | (word2)[0], \ |
| (ret)[1] = (word1)[1] | (word2)[1] ) |
| |
| /* |
| * Define 64-bit XOR |
| */ |
| #define SHA512_XOR(word1, word2, ret) ( \ |
| (ret)[0] = (word1)[0] ^ (word2)[0], \ |
| (ret)[1] = (word1)[1] ^ (word2)[1] ) |
| |
| /* |
| * Define 64-bit AND |
| */ |
| #define SHA512_AND(word1, word2, ret) ( \ |
| (ret)[0] = (word1)[0] & (word2)[0], \ |
| (ret)[1] = (word1)[1] & (word2)[1] ) |
| |
| /* |
| * Define 64-bit TILDA |
| */ |
| #define SHA512_TILDA(word, ret) \ |
| ( (ret)[0] = ~(word)[0], (ret)[1] = ~(word)[1] ) |
| |
| /* |
| * Define 64-bit ADD |
| */ |
| #define SHA512_ADD(word1, word2, ret) ( \ |
| (ret)[1] = (word1)[1], (ret)[1] += (word2)[1], \ |
| (ret)[0] = (word1)[0] + (word2)[0] + ((ret)[1] < (word1)[1]) ) |
| |
| /* |
| * Add the 4word value in word2 to word1. |
| */ |
| static uint32_t ADDTO4_temp, ADDTO4_temp2; |
| #define SHA512_ADDTO4(word1, word2) ( \ |
| ADDTO4_temp = (word1)[3], \ |
| (word1)[3] += (word2)[3], \ |
| ADDTO4_temp2 = (word1)[2], \ |
| (word1)[2] += (word2)[2] + ((word1)[3] < ADDTO4_temp), \ |
| ADDTO4_temp = (word1)[1], \ |
| (word1)[1] += (word2)[1] + ((word1)[2] < ADDTO4_temp2), \ |
| (word1)[0] += (word2)[0] + ((word1)[1] < ADDTO4_temp) ) |
| |
| /* |
| * Add the 2word value in word2 to word1. |
| */ |
| static uint32_t ADDTO2_temp; |
| #define SHA512_ADDTO2(word1, word2) ( \ |
| ADDTO2_temp = (word1)[1], \ |
| (word1)[1] += (word2)[1], \ |
| (word1)[0] += (word2)[0] + ((word1)[1] < ADDTO2_temp) ) |
| |
| /* |
| * SHA rotate ((word >> bits) | (word << (64-bits))) |
| */ |
| static uint32_t ROTR_temp1[2], ROTR_temp2[2]; |
| #define SHA512_ROTR(bits, word, ret) ( \ |
| SHA512_SHR((bits), (word), ROTR_temp1), \ |
| SHA512_SHL(64-(bits), (word), ROTR_temp2), \ |
| SHA512_OR(ROTR_temp1, ROTR_temp2, (ret)) ) |
| |
| /* |
| * Define the SHA SIGMA and sigma macros |
| * |
| * SHA512_ROTR(28,word) ^ SHA512_ROTR(34,word) ^ SHA512_ROTR(39,word) |
| */ |
| static uint32_t SIGMA0_temp1[2], SIGMA0_temp2[2], |
| SIGMA0_temp3[2], SIGMA0_temp4[2]; |
| #define SHA512_SIGMA0(word, ret) ( \ |
| SHA512_ROTR(28, (word), SIGMA0_temp1), \ |
| SHA512_ROTR(34, (word), SIGMA0_temp2), \ |
| SHA512_ROTR(39, (word), SIGMA0_temp3), \ |
| SHA512_XOR(SIGMA0_temp2, SIGMA0_temp3, SIGMA0_temp4), \ |
| SHA512_XOR(SIGMA0_temp1, SIGMA0_temp4, (ret)) ) |
| |
| /* |
| * SHA512_ROTR(14,word) ^ SHA512_ROTR(18,word) ^ SHA512_ROTR(41,word) |
| */ |
| static uint32_t SIGMA1_temp1[2], SIGMA1_temp2[2], |
| SIGMA1_temp3[2], SIGMA1_temp4[2]; |
| #define SHA512_SIGMA1(word, ret) ( \ |
| SHA512_ROTR(14, (word), SIGMA1_temp1), \ |
| SHA512_ROTR(18, (word), SIGMA1_temp2), \ |
| SHA512_ROTR(41, (word), SIGMA1_temp3), \ |
| SHA512_XOR(SIGMA1_temp2, SIGMA1_temp3, SIGMA1_temp4), \ |
| SHA512_XOR(SIGMA1_temp1, SIGMA1_temp4, (ret)) ) |
| |
| /* |
| * (SHA512_ROTR( 1,word) ^ SHA512_ROTR( 8,word) ^ SHA512_SHR( 7,word)) |
| */ |
| static uint32_t sigma0_temp1[2], sigma0_temp2[2], |
| sigma0_temp3[2], sigma0_temp4[2]; |
| #define SHA512_sigma0(word, ret) ( \ |
| SHA512_ROTR( 1, (word), sigma0_temp1), \ |
| SHA512_ROTR( 8, (word), sigma0_temp2), \ |
| SHA512_SHR( 7, (word), sigma0_temp3), \ |
| SHA512_XOR(sigma0_temp2, sigma0_temp3, sigma0_temp4), \ |
| SHA512_XOR(sigma0_temp1, sigma0_temp4, (ret)) ) |
| |
| /* |
| * (SHA512_ROTR(19,word) ^ SHA512_ROTR(61,word) ^ SHA512_SHR( 6,word)) |
| */ |
| static uint32_t sigma1_temp1[2], sigma1_temp2[2], |
| sigma1_temp3[2], sigma1_temp4[2]; |
| #define SHA512_sigma1(word, ret) ( \ |
| SHA512_ROTR(19, (word), sigma1_temp1), \ |
| SHA512_ROTR(61, (word), sigma1_temp2), \ |
| SHA512_SHR( 6, (word), sigma1_temp3), \ |
| SHA512_XOR(sigma1_temp2, sigma1_temp3, sigma1_temp4), \ |
| SHA512_XOR(sigma1_temp1, sigma1_temp4, (ret)) ) |
| |
| #ifndef USE_MODIFIED_MACROS |
| /* |
| * These definitions are the ones used in FIPS 180-3, section 4.1.3 |
| * Ch(x,y,z) ((x & y) ^ (~x & z)) |
| */ |
| static uint32_t Ch_temp1[2], Ch_temp2[2], Ch_temp3[2]; |
| #define SHA_Ch(x, y, z, ret) ( \ |
| SHA512_AND(x, y, Ch_temp1), \ |
| SHA512_TILDA(x, Ch_temp2), \ |
| SHA512_AND(Ch_temp2, z, Ch_temp3), \ |
| SHA512_XOR(Ch_temp1, Ch_temp3, (ret)) ) |
| |
| /* |
| * Maj(x,y,z) (((x)&(y)) ^ ((x)&(z)) ^ ((y)&(z))) |
| */ |
| static uint32_t Maj_temp1[2], Maj_temp2[2], |
| Maj_temp3[2], Maj_temp4[2]; |
| #define SHA_Maj(x, y, z, ret) ( \ |
| SHA512_AND(x, y, Maj_temp1), \ |
| SHA512_AND(x, z, Maj_temp2), \ |
| SHA512_AND(y, z, Maj_temp3), \ |
| SHA512_XOR(Maj_temp2, Maj_temp3, Maj_temp4), \ |
| SHA512_XOR(Maj_temp1, Maj_temp4, (ret)) ) |
| #else /* !USE_MODIFIED_MACROS */ |
| /* |
| * These definitions are potentially faster equivalents for the ones |
| * used in FIPS 180-3, section 4.1.3. |
| * ((x & y) ^ (~x & z)) becomes |
| * ((x & (y ^ z)) ^ z) |
| */ |
| #define SHA_Ch(x, y, z, ret) ( \ |
| (ret)[0] = (((x)[0] & ((y)[0] ^ (z)[0])) ^ (z)[0]), \ |
| (ret)[1] = (((x)[1] & ((y)[1] ^ (z)[1])) ^ (z)[1]) ) |
| |
| /* |
| * ((x & y) ^ (x & z) ^ (y & z)) becomes |
| * ((x & (y | z)) | (y & z)) |
| */ |
| #define SHA_Maj(x, y, z, ret) ( \ |
| ret[0] = (((x)[0] & ((y)[0] | (z)[0])) | ((y)[0] & (z)[0])), \ |
| ret[1] = (((x)[1] & ((y)[1] | (z)[1])) | ((y)[1] & (z)[1])) ) |
| #endif /* USE_MODIFIED_MACROS */ |
| |
| /* |
| * Add "length" to the length. |
| * Set Corrupted when overflow has occurred. |
| */ |
| static uint32_t addTemp[4] = { 0, 0, 0, 0 }; |
| #define SHA384_512AddLength(context, length) ( \ |
| addTemp[3] = (length), SHA512_ADDTO4((context)->Length, addTemp), \ |
| (context)->Corrupted = (((context)->Length[3] < (length)) && \ |
| ((context)->Length[2] == 0) && ((context)->Length[1] == 0) && \ |
| ((context)->Length[0] == 0)) ? shaInputTooLong : \ |
| (context)->Corrupted ) |
| |
| /* Local Function Prototypes */ |
| static int SHA384_512Reset(SHA512Context *context, |
| uint32_t H0[SHA512HashSize/4]); |
| static void SHA384_512ProcessMessageBlock(SHA512Context *context); |
| static void SHA384_512Finalize(SHA512Context *context, |
| uint8_t Pad_Byte); |
| static void SHA384_512PadMessage(SHA512Context *context, |
| uint8_t Pad_Byte); |
| static int SHA384_512ResultN( SHA512Context *context, |
| uint8_t Message_Digest[ ], int HashSize); |
| |
| /* Initial Hash Values: FIPS 180-3 sections 5.3.4 and 5.3.5 */ |
| static uint32_t SHA384_H0[SHA512HashSize/4] = { |
| 0xCBBB9D5D, 0xC1059ED8, 0x629A292A, 0x367CD507, 0x9159015A, |
| 0x3070DD17, 0x152FECD8, 0xF70E5939, 0x67332667, 0xFFC00B31, |
| 0x8EB44A87, 0x68581511, 0xDB0C2E0D, 0x64F98FA7, 0x47B5481D, |
| 0xBEFA4FA4 |
| }; |
| static uint32_t SHA512_H0[SHA512HashSize/4] = { |
| 0x6A09E667, 0xF3BCC908, 0xBB67AE85, 0x84CAA73B, 0x3C6EF372, |
| 0xFE94F82B, 0xA54FF53A, 0x5F1D36F1, 0x510E527F, 0xADE682D1, |
| 0x9B05688C, 0x2B3E6C1F, 0x1F83D9AB, 0xFB41BD6B, 0x5BE0CD19, |
| 0x137E2179 |
| }; |
| |
| #else /* !USE_32BIT_ONLY */ |
| |
| #include "sha-private.h" |
| |
| /* Define the SHA shift, rotate left and rotate right macros */ |
| #define SHA512_SHR(bits,word) (((uint64_t)(word)) >> (bits)) |
| #define SHA512_ROTR(bits,word) ((((uint64_t)(word)) >> (bits)) | \ |
| (((uint64_t)(word)) << (64-(bits)))) |
| |
| /* |
| * Define the SHA SIGMA and sigma macros |
| * |
| * SHA512_ROTR(28,word) ^ SHA512_ROTR(34,word) ^ SHA512_ROTR(39,word) |
| */ |
| #define SHA512_SIGMA0(word) \ |
| (SHA512_ROTR(28,word) ^ SHA512_ROTR(34,word) ^ SHA512_ROTR(39,word)) |
| #define SHA512_SIGMA1(word) \ |
| (SHA512_ROTR(14,word) ^ SHA512_ROTR(18,word) ^ SHA512_ROTR(41,word)) |
| #define SHA512_sigma0(word) \ |
| (SHA512_ROTR( 1,word) ^ SHA512_ROTR( 8,word) ^ SHA512_SHR( 7,word)) |
| #define SHA512_sigma1(word) \ |
| (SHA512_ROTR(19,word) ^ SHA512_ROTR(61,word) ^ SHA512_SHR( 6,word)) |
| |
| /* |
| * Add "length" to the length. |
| * Set Corrupted when overflow has occurred. |
| */ |
| /* addTemp commented out by Nokia, static variables are not thread-safe */ |
| /* static uint64_t addTemp; */ |
| /* 'M' appended to Macro name by Nokia */ |
| #define SHA384_512AddLengthM(context, length) \ |
| (addTemp = context->Length_Low, context->Corrupted = \ |
| ((context->Length_Low += length) < addTemp) && \ |
| (++context->Length_High == 0) ? shaInputTooLong : \ |
| (context)->Corrupted) |
| |
| /* Local Function Prototypes */ |
| static int SHA384_512Reset(SHA512Context *context, |
| uint64_t H0[SHA512HashSize/8]); |
| static void SHA384_512ProcessMessageBlock(SHA512Context *context); |
| static void SHA384_512Finalize(SHA512Context *context, |
| uint8_t Pad_Byte); |
| static void SHA384_512PadMessage(SHA512Context *context, |
| uint8_t Pad_Byte); |
| static int SHA384_512ResultN(SHA512Context *context, |
| uint8_t Message_Digest[ ], int HashSize); |
| |
| /* Initial Hash Values: FIPS 180-3 sections 5.3.4 and 5.3.5 */ |
| static uint64_t SHA384_H0[ ] = { |
| 0xCBBB9D5DC1059ED8ull, 0x629A292A367CD507ull, 0x9159015A3070DD17ull, |
| 0x152FECD8F70E5939ull, 0x67332667FFC00B31ull, 0x8EB44A8768581511ull, |
| 0xDB0C2E0D64F98FA7ull, 0x47B5481DBEFA4FA4ull |
| }; |
| static uint64_t SHA512_H0[ ] = { |
| 0x6A09E667F3BCC908ull, 0xBB67AE8584CAA73Bull, 0x3C6EF372FE94F82Bull, |
| 0xA54FF53A5F1D36F1ull, 0x510E527FADE682D1ull, 0x9B05688C2B3E6C1Full, |
| 0x1F83D9ABFB41BD6Bull, 0x5BE0CD19137E2179ull |
| }; |
| |
| #endif /* USE_32BIT_ONLY */ |
| |
| /* |
| * SHA384Reset |
| * |
| * Description: |
| * This function will initialize the SHA384Context in preparation |
| * for computing a new SHA384 message digest. |
| * |
| * Parameters: |
| * context: [in/out] |
| * The context to reset. |
| * |
| * Returns: |
| * sha Error Code. |
| * |
| */ |
| int SHA384Reset(SHA384Context *context) |
| { |
| return SHA384_512Reset(context, SHA384_H0); |
| } |
| |
| /* |
| * SHA384Input |
| * |
| * 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 SHA384Input(SHA384Context *context, |
| const uint8_t *message_array, unsigned int length) |
| { |
| return SHA512Input(context, message_array, length); |
| } |
| |
| /* |
| * SHA384FinalBits |
| * |
| * 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 SHA384FinalBits(SHA384Context *context, |
| uint8_t message_bits, unsigned int length) |
| { |
| return SHA512FinalBits(context, message_bits, length); |
| } |
| |
| /* |
| * SHA384Result |
| * |
| * Description: |
| * This function will return the 384-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. |
| * |
| * 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); |
| } |
| |
| /* |
| * 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] = { |
| 0x428A2F98D728AE22ull, 0x7137449123EF65CDull, 0xB5C0FBCFEC4D3B2Full, |
| 0xE9B5DBA58189DBBCull, 0x3956C25BF348B538ull, 0x59F111F1B605D019ull, |
| 0x923F82A4AF194F9Bull, 0xAB1C5ED5DA6D8118ull, 0xD807AA98A3030242ull, |
| 0x12835B0145706FBEull, 0x243185BE4EE4B28Cull, 0x550C7DC3D5FFB4E2ull, |
| 0x72BE5D74F27B896Full, 0x80DEB1FE3B1696B1ull, 0x9BDC06A725C71235ull, |
| 0xC19BF174CF692694ull, 0xE49B69C19EF14AD2ull, 0xEFBE4786384F25E3ull, |
| 0x0FC19DC68B8CD5B5ull, 0x240CA1CC77AC9C65ull, 0x2DE92C6F592B0275ull, |
| 0x4A7484AA6EA6E483ull, 0x5CB0A9DCBD41FBD4ull, 0x76F988DA831153B5ull, |
| 0x983E5152EE66DFABull, 0xA831C66D2DB43210ull, 0xB00327C898FB213Full, |
| 0xBF597FC7BEEF0EE4ull, 0xC6E00BF33DA88FC2ull, 0xD5A79147930AA725ull, |
| 0x06CA6351E003826Full, 0x142929670A0E6E70ull, 0x27B70A8546D22FFCull, |
| 0x2E1B21385C26C926ull, 0x4D2C6DFC5AC42AEDull, 0x53380D139D95B3DFull, |
| 0x650A73548BAF63DEull, 0x766A0ABB3C77B2A8ull, 0x81C2C92E47EDAEE6ull, |
| 0x92722C851482353Bull, 0xA2BFE8A14CF10364ull, 0xA81A664BBC423001ull, |
| 0xC24B8B70D0F89791ull, 0xC76C51A30654BE30ull, 0xD192E819D6EF5218ull, |
| 0xD69906245565A910ull, 0xF40E35855771202Aull, 0x106AA07032BBD1B8ull, |
| 0x19A4C116B8D2D0C8ull, 0x1E376C085141AB53ull, 0x2748774CDF8EEB99ull, |
| 0x34B0BCB5E19B48A8ull, 0x391C0CB3C5C95A63ull, 0x4ED8AA4AE3418ACBull, |
| 0x5B9CCA4F7763E373ull, 0x682E6FF3D6B2B8A3ull, 0x748F82EE5DEFB2FCull, |
| 0x78A5636F43172F60ull, 0x84C87814A1F0AB72ull, 0x8CC702081A6439ECull, |
| 0x90BEFFFA23631E28ull, 0xA4506CEBDE82BDE9ull, 0xBEF9A3F7B2C67915ull, |
| 0xC67178F2E372532Bull, 0xCA273ECEEA26619Cull, 0xD186B8C721C0C207ull, |
| 0xEADA7DD6CDE0EB1Eull, 0xF57D4F7FEE6ED178ull, 0x06F067AA72176FBAull, |
| 0x0A637DC5A2C898A6ull, 0x113F9804BEF90DAEull, 0x1B710B35131C471Bull, |
| 0x28DB77F523047D84ull, 0x32CAAB7B40C72493ull, 0x3C9EBE0A15C9BEBCull, |
| 0x431D67C49C100D4Cull, 0x4CC5D4BECB3E42B6ull, 0x597F299CFC657E2Aull, |
| 0x5FCB6FAB3AD6FAECull, 0x6C44198C4A475817ull |
| }; |
| 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; |
| } |
