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  1. /*
  2.  *  FIPS-180-2 compliant SHA-384/512 implementation
  3.  *
  4.  *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
  5.  *  SPDX-License-Identifier: GPL-2.0
  6.  *
  7.  *  This program is free software; you can redistribute it and/or modify
  8.  *  it under the terms of the GNU General Public License as published by
  9.  *  the Free Software Foundation; either version 2 of the License, or
  10.  *  (at your option) any later version.
  11.  *
  12.  *  This program is distributed in the hope that it will be useful,
  13.  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15.  *  GNU General Public License for more details.
  16.  *
  17.  *  You should have received a copy of the GNU General Public License along
  18.  *  with this program; if not, write to the Free Software Foundation, Inc.,
  19.  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20.  *
  21.  *  This file is part of mbed TLS (https://tls.mbed.org)
  22.  */
  23. /*
  24.  *  The SHA-512 Secure Hash Standard was published by NIST in 2002.
  25.  *
  26.  *  http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
  27.  */
  28.  
  29. #if !defined(MBEDTLS_CONFIG_FILE)
  30. #include "mbedtls/config.h"
  31. #else
  32. #include MBEDTLS_CONFIG_FILE
  33. #endif
  34.  
  35. #if defined(MBEDTLS_SHA512_C)
  36.  
  37. #include "mbedtls/sha512.h"
  38. #include "mbedtls/platform_util.h"
  39.  
  40. #if defined(_MSC_VER) || defined(__WATCOMC__)
  41.   #define UL64(x) x##ui64
  42. #else
  43.   #define UL64(x) x##ULL
  44. #endif
  45.  
  46. #include <string.h>
  47.  
  48. #if defined(MBEDTLS_SELF_TEST)
  49. #if defined(MBEDTLS_PLATFORM_C)
  50. #include "mbedtls/platform.h"
  51. #else
  52. #include <stdio.h>
  53. #include <stdlib.h>
  54. #define mbedtls_printf printf
  55. #define mbedtls_calloc    calloc
  56. #define mbedtls_free       free
  57. #endif /* MBEDTLS_PLATFORM_C */
  58. #endif /* MBEDTLS_SELF_TEST */
  59.  
  60. #define SHA512_VALIDATE_RET(cond)                           \
  61.     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA512_BAD_INPUT_DATA )
  62. #define SHA512_VALIDATE(cond)  MBEDTLS_INTERNAL_VALIDATE( cond )
  63.  
  64. #if !defined(MBEDTLS_SHA512_ALT)
  65.  
  66. /*
  67.  * 64-bit integer manipulation macros (big endian)
  68.  */
  69. #ifndef GET_UINT64_BE
  70. #define GET_UINT64_BE(n,b,i)                            \
  71. {                                                       \
  72.     (n) = ( (uint64_t) (b)[(i)    ] << 56 )       \
  73.         | ( (uint64_t) (b)[(i) + 1] << 48 )       \
  74.         | ( (uint64_t) (b)[(i) + 2] << 40 )       \
  75.         | ( (uint64_t) (b)[(i) + 3] << 32 )       \
  76.         | ( (uint64_t) (b)[(i) + 4] << 24 )       \
  77.         | ( (uint64_t) (b)[(i) + 5] << 16 )       \
  78.         | ( (uint64_t) (b)[(i) + 6] <<  8 )       \
  79.         | ( (uint64_t) (b)[(i) + 7]       );      \
  80. }
  81. #endif /* GET_UINT64_BE */
  82.  
  83. #ifndef PUT_UINT64_BE
  84. #define PUT_UINT64_BE(n,b,i)                            \
  85. {                                                       \
  86.     (b)[(i)    ] = (unsigned char) ( (n) >> 56 );       \
  87.     (b)[(i) + 1] = (unsigned char) ( (n) >> 48 );       \
  88.     (b)[(i) + 2] = (unsigned char) ( (n) >> 40 );       \
  89.     (b)[(i) + 3] = (unsigned char) ( (n) >> 32 );       \
  90.     (b)[(i) + 4] = (unsigned char) ( (n) >> 24 );       \
  91.     (b)[(i) + 5] = (unsigned char) ( (n) >> 16 );       \
  92.     (b)[(i) + 6] = (unsigned char) ( (n) >>  8 );       \
  93.     (b)[(i) + 7] = (unsigned char) ( (n)       );       \
  94. }
  95. #endif /* PUT_UINT64_BE */
  96.  
  97. void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
  98. {
  99.     SHA512_VALIDATE( ctx != NULL );
  100.  
  101.     memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
  102. }
  103.  
  104. void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
  105. {
  106.     if( ctx == NULL )
  107.         return;
  108.  
  109.     mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha512_context ) );
  110. }
  111.  
  112. void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
  113.                            const mbedtls_sha512_context *src )
  114. {
  115.     SHA512_VALIDATE( dst != NULL );
  116.     SHA512_VALIDATE( src != NULL );
  117.  
  118.     *dst = *src;
  119. }
  120.  
  121. /*
  122.  * SHA-512 context setup
  123.  */
  124. int mbedtls_sha512_starts_ret( mbedtls_sha512_context *ctx, int is384 )
  125. {
  126.     SHA512_VALIDATE_RET( ctx != NULL );
  127.     SHA512_VALIDATE_RET( is384 == 0 || is384 == 1 );
  128.  
  129.     ctx->total[0] = 0;
  130.     ctx->total[1] = 0;
  131.  
  132.     if( is384 == 0 )
  133.     {
  134.         /* SHA-512 */
  135.         ctx->state[0] = UL64(0x6A09E667F3BCC908);
  136.         ctx->state[1] = UL64(0xBB67AE8584CAA73B);
  137.         ctx->state[2] = UL64(0x3C6EF372FE94F82B);
  138.         ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
  139.         ctx->state[4] = UL64(0x510E527FADE682D1);
  140.         ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
  141.         ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
  142.         ctx->state[7] = UL64(0x5BE0CD19137E2179);
  143.     }
  144.     else
  145.     {
  146.         /* SHA-384 */
  147.         ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
  148.         ctx->state[1] = UL64(0x629A292A367CD507);
  149.         ctx->state[2] = UL64(0x9159015A3070DD17);
  150.         ctx->state[3] = UL64(0x152FECD8F70E5939);
  151.         ctx->state[4] = UL64(0x67332667FFC00B31);
  152.         ctx->state[5] = UL64(0x8EB44A8768581511);
  153.         ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
  154.         ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
  155.     }
  156.  
  157.     ctx->is384 = is384;
  158.  
  159.     return( 0 );
  160. }
  161.  
  162. #if !defined(MBEDTLS_DEPRECATED_REMOVED)
  163. void mbedtls_sha512_starts( mbedtls_sha512_context *ctx,
  164.                             int is384 )
  165. {
  166.     mbedtls_sha512_starts_ret( ctx, is384 );
  167. }
  168. #endif
  169.  
  170. #if !defined(MBEDTLS_SHA512_PROCESS_ALT)
  171.  
  172. /*
  173.  * Round constants
  174.  */
  175. static const uint64_t K[80] =
  176. {
  177.     UL64(0x428A2F98D728AE22),  UL64(0x7137449123EF65CD),
  178.     UL64(0xB5C0FBCFEC4D3B2F),  UL64(0xE9B5DBA58189DBBC),
  179.     UL64(0x3956C25BF348B538),  UL64(0x59F111F1B605D019),
  180.     UL64(0x923F82A4AF194F9B),  UL64(0xAB1C5ED5DA6D8118),
  181.     UL64(0xD807AA98A3030242),  UL64(0x12835B0145706FBE),
  182.     UL64(0x243185BE4EE4B28C),  UL64(0x550C7DC3D5FFB4E2),
  183.     UL64(0x72BE5D74F27B896F),  UL64(0x80DEB1FE3B1696B1),
  184.     UL64(0x9BDC06A725C71235),  UL64(0xC19BF174CF692694),
  185.     UL64(0xE49B69C19EF14AD2),  UL64(0xEFBE4786384F25E3),
  186.     UL64(0x0FC19DC68B8CD5B5),  UL64(0x240CA1CC77AC9C65),
  187.     UL64(0x2DE92C6F592B0275),  UL64(0x4A7484AA6EA6E483),
  188.     UL64(0x5CB0A9DCBD41FBD4),  UL64(0x76F988DA831153B5),
  189.     UL64(0x983E5152EE66DFAB),  UL64(0xA831C66D2DB43210),
  190.     UL64(0xB00327C898FB213F),  UL64(0xBF597FC7BEEF0EE4),
  191.     UL64(0xC6E00BF33DA88FC2),  UL64(0xD5A79147930AA725),
  192.     UL64(0x06CA6351E003826F),  UL64(0x142929670A0E6E70),
  193.     UL64(0x27B70A8546D22FFC),  UL64(0x2E1B21385C26C926),
  194.     UL64(0x4D2C6DFC5AC42AED),  UL64(0x53380D139D95B3DF),
  195.     UL64(0x650A73548BAF63DE),  UL64(0x766A0ABB3C77B2A8),
  196.     UL64(0x81C2C92E47EDAEE6),  UL64(0x92722C851482353B),
  197.     UL64(0xA2BFE8A14CF10364),  UL64(0xA81A664BBC423001),
  198.     UL64(0xC24B8B70D0F89791),  UL64(0xC76C51A30654BE30),
  199.     UL64(0xD192E819D6EF5218),  UL64(0xD69906245565A910),
  200.     UL64(0xF40E35855771202A),  UL64(0x106AA07032BBD1B8),
  201.     UL64(0x19A4C116B8D2D0C8),  UL64(0x1E376C085141AB53),
  202.     UL64(0x2748774CDF8EEB99),  UL64(0x34B0BCB5E19B48A8),
  203.     UL64(0x391C0CB3C5C95A63),  UL64(0x4ED8AA4AE3418ACB),
  204.     UL64(0x5B9CCA4F7763E373),  UL64(0x682E6FF3D6B2B8A3),
  205.     UL64(0x748F82EE5DEFB2FC),  UL64(0x78A5636F43172F60),
  206.     UL64(0x84C87814A1F0AB72),  UL64(0x8CC702081A6439EC),
  207.     UL64(0x90BEFFFA23631E28),  UL64(0xA4506CEBDE82BDE9),
  208.     UL64(0xBEF9A3F7B2C67915),  UL64(0xC67178F2E372532B),
  209.     UL64(0xCA273ECEEA26619C),  UL64(0xD186B8C721C0C207),
  210.     UL64(0xEADA7DD6CDE0EB1E),  UL64(0xF57D4F7FEE6ED178),
  211.     UL64(0x06F067AA72176FBA),  UL64(0x0A637DC5A2C898A6),
  212.     UL64(0x113F9804BEF90DAE),  UL64(0x1B710B35131C471B),
  213.     UL64(0x28DB77F523047D84),  UL64(0x32CAAB7B40C72493),
  214.     UL64(0x3C9EBE0A15C9BEBC),  UL64(0x431D67C49C100D4C),
  215.     UL64(0x4CC5D4BECB3E42B6),  UL64(0x597F299CFC657E2A),
  216.     UL64(0x5FCB6FAB3AD6FAEC),  UL64(0x6C44198C4A475817)
  217. };
  218.  
  219. int mbedtls_internal_sha512_process( mbedtls_sha512_context *ctx,
  220.                                      const unsigned char data[128] )
  221. {
  222.     int i;
  223.     uint64_t temp1, temp2, W[80];
  224.     uint64_t A, B, C, D, E, F, G, H;
  225.  
  226.     SHA512_VALIDATE_RET( ctx != NULL );
  227.     SHA512_VALIDATE_RET( (const unsigned char *)data != NULL );
  228.  
  229. #define  SHR(x,n) ((x) >> (n))
  230. #define ROTR(x,n) (SHR((x),(n)) | ((x) << (64 - (n))))
  231.  
  232. #define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^  SHR(x, 7))
  233. #define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^  SHR(x, 6))
  234.  
  235. #define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
  236. #define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
  237.  
  238. #define F0(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
  239. #define F1(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
  240.  
  241. #define P(a,b,c,d,e,f,g,h,x,K)                                  \
  242.     do                                                          \
  243.     {                                                           \
  244.         temp1 = (h) + S3(e) + F1((e),(f),(g)) + (K) + (x);      \
  245.         temp2 = S2(a) + F0((a),(b),(c));                        \
  246.         (d) += temp1; (h) = temp1 + temp2;                      \
  247.     } while( 0 )
  248.  
  249.     for( i = 0; i < 16; i++ )
  250.     {
  251.         GET_UINT64_BE( W[i], data, i << 3 );
  252.     }
  253.  
  254.     for( ; i < 80; i++ )
  255.     {
  256.         W[i] = S1(W[i -  2]) + W[i -  7] +
  257.                S0(W[i - 15]) + W[i - 16];
  258.     }
  259.  
  260.     A = ctx->state[0];
  261.     B = ctx->state[1];
  262.     C = ctx->state[2];
  263.     D = ctx->state[3];
  264.     E = ctx->state[4];
  265.     F = ctx->state[5];
  266.     G = ctx->state[6];
  267.     H = ctx->state[7];
  268.     i = 0;
  269.  
  270.     do
  271.     {
  272.         P( A, B, C, D, E, F, G, H, W[i], K[i] ); i++;
  273.         P( H, A, B, C, D, E, F, G, W[i], K[i] ); i++;
  274.         P( G, H, A, B, C, D, E, F, W[i], K[i] ); i++;
  275.         P( F, G, H, A, B, C, D, E, W[i], K[i] ); i++;
  276.         P( E, F, G, H, A, B, C, D, W[i], K[i] ); i++;
  277.         P( D, E, F, G, H, A, B, C, W[i], K[i] ); i++;
  278.         P( C, D, E, F, G, H, A, B, W[i], K[i] ); i++;
  279.         P( B, C, D, E, F, G, H, A, W[i], K[i] ); i++;
  280.     }
  281.     while( i < 80 );
  282.  
  283.     ctx->state[0] += A;
  284.     ctx->state[1] += B;
  285.     ctx->state[2] += C;
  286.     ctx->state[3] += D;
  287.     ctx->state[4] += E;
  288.     ctx->state[5] += F;
  289.     ctx->state[6] += G;
  290.     ctx->state[7] += H;
  291.  
  292.     return( 0 );
  293. }
  294.  
  295. #if !defined(MBEDTLS_DEPRECATED_REMOVED)
  296. void mbedtls_sha512_process( mbedtls_sha512_context *ctx,
  297.                              const unsigned char data[128] )
  298. {
  299.     mbedtls_internal_sha512_process( ctx, data );
  300. }
  301. #endif
  302. #endif /* !MBEDTLS_SHA512_PROCESS_ALT */
  303.  
  304. /*
  305.  * SHA-512 process buffer
  306.  */
  307. int mbedtls_sha512_update_ret( mbedtls_sha512_context *ctx,
  308.                                const unsigned char *input,
  309.                                size_t ilen )
  310. {
  311.     int ret;
  312.     size_t fill;
  313.     unsigned int left;
  314.  
  315.     SHA512_VALIDATE_RET( ctx != NULL );
  316.     SHA512_VALIDATE_RET( ilen == 0 || input != NULL );
  317.  
  318.     if( ilen == 0 )
  319.         return( 0 );
  320.  
  321.     left = (unsigned int) (ctx->total[0] & 0x7F);
  322.     fill = 128 - left;
  323.  
  324.     ctx->total[0] += (uint64_t) ilen;
  325.  
  326.     if( ctx->total[0] < (uint64_t) ilen )
  327.         ctx->total[1]++;
  328.  
  329.     if( left && ilen >= fill )
  330.     {
  331.         memcpy( (void *) (ctx->buffer + left), input, fill );
  332.  
  333.         if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
  334.             return( ret );
  335.  
  336.         input += fill;
  337.         ilen  -= fill;
  338.         left = 0;
  339.     }
  340.  
  341.     while( ilen >= 128 )
  342.     {
  343.         if( ( ret = mbedtls_internal_sha512_process( ctx, input ) ) != 0 )
  344.             return( ret );
  345.  
  346.         input += 128;
  347.         ilen  -= 128;
  348.     }
  349.  
  350.     if( ilen > 0 )
  351.         memcpy( (void *) (ctx->buffer + left), input, ilen );
  352.  
  353.     return( 0 );
  354. }
  355.  
  356. #if !defined(MBEDTLS_DEPRECATED_REMOVED)
  357. void mbedtls_sha512_update( mbedtls_sha512_context *ctx,
  358.                             const unsigned char *input,
  359.                             size_t ilen )
  360. {
  361.     mbedtls_sha512_update_ret( ctx, input, ilen );
  362. }
  363. #endif
  364.  
  365. /*
  366.  * SHA-512 final digest
  367.  */
  368. int mbedtls_sha512_finish_ret( mbedtls_sha512_context *ctx,
  369.                                unsigned char output[64] )
  370. {
  371.     int ret;
  372.     unsigned used;
  373.     uint64_t high, low;
  374.  
  375.     SHA512_VALIDATE_RET( ctx != NULL );
  376.     SHA512_VALIDATE_RET( (unsigned char *)output != NULL );
  377.  
  378.     /*
  379.      * Add padding: 0x80 then 0x00 until 16 bytes remain for the length
  380.      */
  381.     used = ctx->total[0] & 0x7F;
  382.  
  383.     ctx->buffer[used++] = 0x80;
  384.  
  385.     if( used <= 112 )
  386.     {
  387.         /* Enough room for padding + length in current block */
  388.         memset( ctx->buffer + used, 0, 112 - used );
  389.     }
  390.     else
  391.     {
  392.         /* We'll need an extra block */
  393.         memset( ctx->buffer + used, 0, 128 - used );
  394.  
  395.         if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
  396.             return( ret );
  397.  
  398.         memset( ctx->buffer, 0, 112 );
  399.     }
  400.  
  401.     /*
  402.      * Add message length
  403.      */
  404.     high = ( ctx->total[0] >> 61 )
  405.          | ( ctx->total[1] <<  3 );
  406.     low  = ( ctx->total[0] <<  3 );
  407.  
  408.     PUT_UINT64_BE( high, ctx->buffer, 112 );
  409.     PUT_UINT64_BE( low,  ctx->buffer, 120 );
  410.  
  411.     if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
  412.         return( ret );
  413.  
  414.     /*
  415.      * Output final state
  416.      */
  417.     PUT_UINT64_BE( ctx->state[0], output,  0 );
  418.     PUT_UINT64_BE( ctx->state[1], output,  8 );
  419.     PUT_UINT64_BE( ctx->state[2], output, 16 );
  420.     PUT_UINT64_BE( ctx->state[3], output, 24 );
  421.     PUT_UINT64_BE( ctx->state[4], output, 32 );
  422.     PUT_UINT64_BE( ctx->state[5], output, 40 );
  423.  
  424.     if( ctx->is384 == 0 )
  425.     {
  426.         PUT_UINT64_BE( ctx->state[6], output, 48 );
  427.         PUT_UINT64_BE( ctx->state[7], output, 56 );
  428.     }
  429.  
  430.     return( 0 );
  431. }
  432.  
  433. #if !defined(MBEDTLS_DEPRECATED_REMOVED)
  434. void mbedtls_sha512_finish( mbedtls_sha512_context *ctx,
  435.                             unsigned char output[64] )
  436. {
  437.     mbedtls_sha512_finish_ret( ctx, output );
  438. }
  439. #endif
  440.  
  441. #endif /* !MBEDTLS_SHA512_ALT */
  442.  
  443. /*
  444.  * output = SHA-512( input buffer )
  445.  */
  446. int mbedtls_sha512_ret( const unsigned char *input,
  447.                     size_t ilen,
  448.                     unsigned char output[64],
  449.                     int is384 )
  450. {
  451.     int ret;
  452.     mbedtls_sha512_context ctx;
  453.  
  454.     SHA512_VALIDATE_RET( is384 == 0 || is384 == 1 );
  455.     SHA512_VALIDATE_RET( ilen == 0 || input != NULL );
  456.     SHA512_VALIDATE_RET( (unsigned char *)output != NULL );
  457.  
  458.     mbedtls_sha512_init( &ctx );
  459.  
  460.     if( ( ret = mbedtls_sha512_starts_ret( &ctx, is384 ) ) != 0 )
  461.         goto exit;
  462.  
  463.     if( ( ret = mbedtls_sha512_update_ret( &ctx, input, ilen ) ) != 0 )
  464.         goto exit;
  465.  
  466.     if( ( ret = mbedtls_sha512_finish_ret( &ctx, output ) ) != 0 )
  467.         goto exit;
  468.  
  469. exit:
  470.     mbedtls_sha512_free( &ctx );
  471.  
  472.     return( ret );
  473. }
  474.  
  475. #if !defined(MBEDTLS_DEPRECATED_REMOVED)
  476. void mbedtls_sha512( const unsigned char *input,
  477.                      size_t ilen,
  478.                      unsigned char output[64],
  479.                      int is384 )
  480. {
  481.     mbedtls_sha512_ret( input, ilen, output, is384 );
  482. }
  483. #endif
  484.  
  485. #if defined(MBEDTLS_SELF_TEST)
  486.  
  487. /*
  488.  * FIPS-180-2 test vectors
  489.  */
  490. static const unsigned char sha512_test_buf[3][113] =
  491. {
  492.     { "abc" },
  493.     { "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
  494.       "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" },
  495.     { "" }
  496. };
  497.  
  498. static const size_t sha512_test_buflen[3] =
  499. {
  500.     3, 112, 1000
  501. };
  502.  
  503. static const unsigned char sha512_test_sum[6][64] =
  504. {
  505.     /*
  506.      * SHA-384 test vectors
  507.      */
  508.     { 0xCB, 0x00, 0x75, 0x3F, 0x45, 0xA3, 0x5E, 0x8B,
  509.       0xB5, 0xA0, 0x3D, 0x69, 0x9A, 0xC6, 0x50, 0x07,
  510.       0x27, 0x2C, 0x32, 0xAB, 0x0E, 0xDE, 0xD1, 0x63,
  511.       0x1A, 0x8B, 0x60, 0x5A, 0x43, 0xFF, 0x5B, 0xED,
  512.       0x80, 0x86, 0x07, 0x2B, 0xA1, 0xE7, 0xCC, 0x23,
  513.       0x58, 0xBA, 0xEC, 0xA1, 0x34, 0xC8, 0x25, 0xA7 },
  514.     { 0x09, 0x33, 0x0C, 0x33, 0xF7, 0x11, 0x47, 0xE8,
  515.       0x3D, 0x19, 0x2F, 0xC7, 0x82, 0xCD, 0x1B, 0x47,
  516.       0x53, 0x11, 0x1B, 0x17, 0x3B, 0x3B, 0x05, 0xD2,
  517.       0x2F, 0xA0, 0x80, 0x86, 0xE3, 0xB0, 0xF7, 0x12,
  518.       0xFC, 0xC7, 0xC7, 0x1A, 0x55, 0x7E, 0x2D, 0xB9,
  519.       0x66, 0xC3, 0xE9, 0xFA, 0x91, 0x74, 0x60, 0x39 },
  520.     { 0x9D, 0x0E, 0x18, 0x09, 0x71, 0x64, 0x74, 0xCB,
  521.       0x08, 0x6E, 0x83, 0x4E, 0x31, 0x0A, 0x4A, 0x1C,
  522.       0xED, 0x14, 0x9E, 0x9C, 0x00, 0xF2, 0x48, 0x52,
  523.       0x79, 0x72, 0xCE, 0xC5, 0x70, 0x4C, 0x2A, 0x5B,
  524.       0x07, 0xB8, 0xB3, 0xDC, 0x38, 0xEC, 0xC4, 0xEB,
  525.       0xAE, 0x97, 0xDD, 0xD8, 0x7F, 0x3D, 0x89, 0x85 },
  526.  
  527.     /*
  528.      * SHA-512 test vectors
  529.      */
  530.     { 0xDD, 0xAF, 0x35, 0xA1, 0x93, 0x61, 0x7A, 0xBA,
  531.       0xCC, 0x41, 0x73, 0x49, 0xAE, 0x20, 0x41, 0x31,
  532.       0x12, 0xE6, 0xFA, 0x4E, 0x89, 0xA9, 0x7E, 0xA2,
  533.       0x0A, 0x9E, 0xEE, 0xE6, 0x4B, 0x55, 0xD3, 0x9A,
  534.       0x21, 0x92, 0x99, 0x2A, 0x27, 0x4F, 0xC1, 0xA8,
  535.       0x36, 0xBA, 0x3C, 0x23, 0xA3, 0xFE, 0xEB, 0xBD,
  536.       0x45, 0x4D, 0x44, 0x23, 0x64, 0x3C, 0xE8, 0x0E,
  537.       0x2A, 0x9A, 0xC9, 0x4F, 0xA5, 0x4C, 0xA4, 0x9F },
  538.     { 0x8E, 0x95, 0x9B, 0x75, 0xDA, 0xE3, 0x13, 0xDA,
  539.       0x8C, 0xF4, 0xF7, 0x28, 0x14, 0xFC, 0x14, 0x3F,
  540.       0x8F, 0x77, 0x79, 0xC6, 0xEB, 0x9F, 0x7F, 0xA1,
  541.       0x72, 0x99, 0xAE, 0xAD, 0xB6, 0x88, 0x90, 0x18,
  542.       0x50, 0x1D, 0x28, 0x9E, 0x49, 0x00, 0xF7, 0xE4,
  543.       0x33, 0x1B, 0x99, 0xDE, 0xC4, 0xB5, 0x43, 0x3A,
  544.       0xC7, 0xD3, 0x29, 0xEE, 0xB6, 0xDD, 0x26, 0x54,
  545.       0x5E, 0x96, 0xE5, 0x5B, 0x87, 0x4B, 0xE9, 0x09 },
  546.     { 0xE7, 0x18, 0x48, 0x3D, 0x0C, 0xE7, 0x69, 0x64,
  547.       0x4E, 0x2E, 0x42, 0xC7, 0xBC, 0x15, 0xB4, 0x63,
  548.       0x8E, 0x1F, 0x98, 0xB1, 0x3B, 0x20, 0x44, 0x28,
  549.       0x56, 0x32, 0xA8, 0x03, 0xAF, 0xA9, 0x73, 0xEB,
  550.       0xDE, 0x0F, 0xF2, 0x44, 0x87, 0x7E, 0xA6, 0x0A,
  551.       0x4C, 0xB0, 0x43, 0x2C, 0xE5, 0x77, 0xC3, 0x1B,
  552.       0xEB, 0x00, 0x9C, 0x5C, 0x2C, 0x49, 0xAA, 0x2E,
  553.       0x4E, 0xAD, 0xB2, 0x17, 0xAD, 0x8C, 0xC0, 0x9B }
  554. };
  555.  
  556. /*
  557.  * Checkup routine
  558.  */
  559. int mbedtls_sha512_self_test( int verbose )
  560. {
  561.     int i, j, k, buflen, ret = 0;
  562.     unsigned char *buf;
  563.     unsigned char sha512sum[64];
  564.     mbedtls_sha512_context ctx;
  565.  
  566.     buf = mbedtls_calloc( 1024, sizeof(unsigned char) );
  567.     if( NULL == buf )
  568.     {
  569.         if( verbose != 0 )
  570.             mbedtls_printf( "Buffer allocation failed\n" );
  571.  
  572.         return( 1 );
  573.     }
  574.  
  575.     mbedtls_sha512_init( &ctx );
  576.  
  577.     for( i = 0; i < 6; i++ )
  578.     {
  579.         j = i % 3;
  580.         k = i < 3;
  581.  
  582.         if( verbose != 0 )
  583.             mbedtls_printf( "  SHA-%d test #%d: ", 512 - k * 128, j + 1 );
  584.  
  585.         if( ( ret = mbedtls_sha512_starts_ret( &ctx, k ) ) != 0 )
  586.             goto fail;
  587.  
  588.         if( j == 2 )
  589.         {
  590.             memset( buf, 'a', buflen = 1000 );
  591.  
  592.             for( j = 0; j < 1000; j++ )
  593.             {
  594.                 ret = mbedtls_sha512_update_ret( &ctx, buf, buflen );
  595.                 if( ret != 0 )
  596.                     goto fail;
  597.             }
  598.         }
  599.         else
  600.         {
  601.             ret = mbedtls_sha512_update_ret( &ctx, sha512_test_buf[j],
  602.                                              sha512_test_buflen[j] );
  603.             if( ret != 0 )
  604.                 goto fail;
  605.         }
  606.  
  607.         if( ( ret = mbedtls_sha512_finish_ret( &ctx, sha512sum ) ) != 0 )
  608.             goto fail;
  609.  
  610.         if( memcmp( sha512sum, sha512_test_sum[i], 64 - k * 16 ) != 0 )
  611.         {
  612.             ret = 1;
  613.             goto fail;
  614.         }
  615.  
  616.         if( verbose != 0 )
  617.             mbedtls_printf( "passed\n" );
  618.     }
  619.  
  620.     if( verbose != 0 )
  621.         mbedtls_printf( "\n" );
  622.  
  623.     goto exit;
  624.  
  625. fail:
  626.     if( verbose != 0 )
  627.         mbedtls_printf( "failed\n" );
  628.  
  629. exit:
  630.     mbedtls_sha512_free( &ctx );
  631.     mbedtls_free( buf );
  632.  
  633.     return( ret );
  634. }
  635.  
  636. #endif /* MBEDTLS_SELF_TEST */
  637.  
  638. #endif /* MBEDTLS_SHA512_C */
  639.