LCOV - code coverage report
Current view: top level - dh - dh_rfc5114.c (source / functions) Hit Total Coverage
Test: lcov_coverage_final.info Lines: 3 3 100.0 %
Date: 2014-08-02 Functions: 3 3 100.0 %
Branches: 12 24 50.0 %

           Branch data     Line data    Source code
       1                 :            : /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
       2                 :            :  * project 2011.
       3                 :            :  */
       4                 :            : /* ====================================================================
       5                 :            :  * Copyright (c) 2011 The OpenSSL Project.  All rights reserved.
       6                 :            :  *
       7                 :            :  * Redistribution and use in source and binary forms, with or without
       8                 :            :  * modification, are permitted provided that the following conditions
       9                 :            :  * are met:
      10                 :            :  *
      11                 :            :  * 1. Redistributions of source code must retain the above copyright
      12                 :            :  *    notice, this list of conditions and the following disclaimer. 
      13                 :            :  *
      14                 :            :  * 2. Redistributions in binary form must reproduce the above copyright
      15                 :            :  *    notice, this list of conditions and the following disclaimer in
      16                 :            :  *    the documentation and/or other materials provided with the
      17                 :            :  *    distribution.
      18                 :            :  *
      19                 :            :  * 3. All advertising materials mentioning features or use of this
      20                 :            :  *    software must display the following acknowledgment:
      21                 :            :  *    "This product includes software developed by the OpenSSL Project
      22                 :            :  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
      23                 :            :  *
      24                 :            :  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
      25                 :            :  *    endorse or promote products derived from this software without
      26                 :            :  *    prior written permission. For written permission, please contact
      27                 :            :  *    licensing@OpenSSL.org.
      28                 :            :  *
      29                 :            :  * 5. Products derived from this software may not be called "OpenSSL"
      30                 :            :  *    nor may "OpenSSL" appear in their names without prior written
      31                 :            :  *    permission of the OpenSSL Project.
      32                 :            :  *
      33                 :            :  * 6. Redistributions of any form whatsoever must retain the following
      34                 :            :  *    acknowledgment:
      35                 :            :  *    "This product includes software developed by the OpenSSL Project
      36                 :            :  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
      37                 :            :  *
      38                 :            :  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
      39                 :            :  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
      40                 :            :  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
      41                 :            :  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
      42                 :            :  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      43                 :            :  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
      44                 :            :  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
      45                 :            :  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      46                 :            :  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      47                 :            :  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      48                 :            :  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
      49                 :            :  * OF THE POSSIBILITY OF SUCH DAMAGE.
      50                 :            :  * ====================================================================
      51                 :            :  *
      52                 :            :  * This product includes cryptographic software written by Eric Young
      53                 :            :  * (eay@cryptsoft.com).  This product includes software written by Tim
      54                 :            :  * Hudson (tjh@cryptsoft.com).
      55                 :            :  *
      56                 :            :  */
      57                 :            : 
      58                 :            : #include <stdio.h>
      59                 :            : #include "cryptlib.h"
      60                 :            : #include <openssl/dh.h>
      61                 :            : #include <openssl/bn.h>
      62                 :            : 
      63                 :            : /* DH parameters from RFC5114 */
      64                 :            : 
      65                 :            : #if BN_BITS2 == 64
      66                 :            : static const BN_ULONG dh1024_160_p[] = {
      67                 :            :         0xDF1FB2BC2E4A4371ULL,0xE68CFDA76D4DA708ULL,0x45BF37DF365C1A65ULL,
      68                 :            :         0xA151AF5F0DC8B4BDULL,0xFAA31A4FF55BCCC0ULL,0x4EFFD6FAE5644738ULL,
      69                 :            :         0x98488E9C219A7372ULL,0xACCBDD7D90C4BD70ULL,0x24975C3CD49B83BFULL,
      70                 :            :         0x13ECB4AEA9061123ULL,0x9838EF1E2EE652C0ULL,0x6073E28675A23D18ULL,
      71                 :            :         0x9A6A9DCA52D23B61ULL,0x52C99FBCFB06A3C6ULL,0xDE92DE5EAE5D54ECULL,
      72                 :            :         0xB10B8F96A080E01DULL
      73                 :            : };
      74                 :            : static const BN_ULONG dh1024_160_g[] = {
      75                 :            :         0x855E6EEB22B3B2E5ULL,0x858F4DCEF97C2A24ULL,0x2D779D5918D08BC8ULL,
      76                 :            :         0xD662A4D18E73AFA3ULL,0x1DBF0A0169B6A28AULL,0xA6A24C087A091F53ULL,
      77                 :            :         0x909D0D2263F80A76ULL,0xD7FBD7D3B9A92EE1ULL,0x5E91547F9E2749F4ULL,
      78                 :            :         0x160217B4B01B886AULL,0x777E690F5504F213ULL,0x266FEA1E5C41564BULL,
      79                 :            :         0xD6406CFF14266D31ULL,0xF8104DD258AC507FULL,0x6765A442EFB99905ULL,
      80                 :            :         0xA4D1CBD5C3FD3412ULL
      81                 :            : };
      82                 :            : static const BN_ULONG dh1024_160_q[] = {
      83                 :            :         0x64B7CB9D49462353ULL,0x81A8DF278ABA4E7DULL,0x00000000F518AA87ULL
      84                 :            : };
      85                 :            : 
      86                 :            : static const BN_ULONG dh2048_224_p[] = {
      87                 :            :         0x0AC4DFFE0C10E64FULL,0xCF9DE5384E71B81CULL,0x7EF363E2FFA31F71ULL,
      88                 :            :         0xE3FB73C16B8E75B9ULL,0xC9B53DCF4BA80A29ULL,0x23F10B0E16E79763ULL,
      89                 :            :         0xC52172E413042E9BULL,0xBE60E69CC928B2B9ULL,0x80CD86A1B9E587E8ULL,
      90                 :            :         0x315D75E198C641A4ULL,0xCDF93ACC44328387ULL,0x15987D9ADC0A486DULL,
      91                 :            :         0x7310F7121FD5A074ULL,0x278273C7DE31EFDCULL,0x1602E714415D9330ULL,
      92                 :            :         0x81286130BC8985DBULL,0xB3BF8A3170918836ULL,0x6A00E0A0B9C49708ULL,
      93                 :            :         0xC6BA0B2C8BBC27BEULL,0xC9F98D11ED34DBF6ULL,0x7AD5B7D0B6C12207ULL,
      94                 :            :         0xD91E8FEF55B7394BULL,0x9037C9EDEFDA4DF8ULL,0x6D3F8152AD6AC212ULL,
      95                 :            :         0x1DE6B85A1274A0A6ULL,0xEB3D688A309C180EULL,0xAF9A3C407BA1DF15ULL,
      96                 :            :         0xE6FA141DF95A56DBULL,0xB54B1597B61D0A75ULL,0xA20D64E5683B9FD1ULL,
      97                 :            :         0xD660FAA79559C51FULL,0xAD107E1E9123A9D0ULL
      98                 :            : };
      99                 :            : static const BN_ULONG dh2048_224_g[] = {
     100                 :            :         0x84B890D3191F2BFAULL,0x81BC087F2A7065B3ULL,0x19C418E1F6EC0179ULL,
     101                 :            :         0x7B5A0F1C71CFFF4CULL,0xEDFE72FE9B6AA4BDULL,0x81E1BCFE94B30269ULL,
     102                 :            :         0x566AFBB48D6C0191ULL,0xB539CCE3409D13CDULL,0x6AA21E7F5F2FF381ULL,
     103                 :            :         0xD9E263E4770589EFULL,0x10E183EDD19963DDULL,0xB70A8137150B8EEBULL,
     104                 :            :         0x051AE3D428C8F8ACULL,0xBB77A86F0C1AB15BULL,0x6E3025E316A330EFULL,
     105                 :            :         0x19529A45D6F83456ULL,0xF180EB34118E98D1ULL,0xB5F6C6B250717CBEULL,
     106                 :            :         0x09939D54DA7460CDULL,0xE247150422EA1ED4ULL,0xB8A762D0521BC98AULL,
     107                 :            :         0xF4D027275AC1348BULL,0xC17669101999024AULL,0xBE5E9001A8D66AD7ULL,
     108                 :            :         0xC57DB17C620A8652ULL,0xAB739D7700C29F52ULL,0xDD921F01A70C4AFAULL,
     109                 :            :         0xA6824A4E10B9A6F0ULL,0x74866A08CFE4FFE3ULL,0x6CDEBE7B89998CAFULL,
     110                 :            :         0x9DF30B5C8FFDAC50ULL,0xAC4032EF4F2D9AE3ULL
     111                 :            : };
     112                 :            : static const BN_ULONG dh2048_224_q[] = {
     113                 :            :         0xBF389A99B36371EBULL,0x1F80535A4738CEBCULL,0xC58D93FE99717710ULL,
     114                 :            :         0x00000000801C0D34ULL
     115                 :            : };
     116                 :            : 
     117                 :            : static const BN_ULONG dh2048_256_p[] = {
     118                 :            :         0xDB094AE91E1A1597ULL,0x693877FAD7EF09CAULL,0x6116D2276E11715FULL,
     119                 :            :         0xA4B54330C198AF12ULL,0x75F26375D7014103ULL,0xC3A3960A54E710C3ULL,
     120                 :            :         0xDED4010ABD0BE621ULL,0xC0B857F689962856ULL,0xB3CA3F7971506026ULL,
     121                 :            :         0x1CCACB83E6B486F6ULL,0x67E144E514056425ULL,0xF6A167B5A41825D9ULL,
     122                 :            :         0x3AD8347796524D8EULL,0xF13C6D9A51BFA4ABULL,0x2D52526735488A0EULL,
     123                 :            :         0xB63ACAE1CAA6B790ULL,0x4FDB70C581B23F76ULL,0xBC39A0BF12307F5CULL,
     124                 :            :         0xB941F54EB1E59BB8ULL,0x6C5BFC11D45F9088ULL,0x22E0B1EF4275BF7BULL,
     125                 :            :         0x91F9E6725B4758C0ULL,0x5A8A9D306BCF67EDULL,0x209E0C6497517ABDULL,
     126                 :            :         0x3BF4296D830E9A7CULL,0x16C3D91134096FAAULL,0xFAF7DF4561B2AA30ULL,
     127                 :            :         0xE00DF8F1D61957D4ULL,0x5D2CEED4435E3B00ULL,0x8CEEF608660DD0F2ULL,
     128                 :            :         0xFFBBD19C65195999ULL,0x87A8E61DB4B6663CULL
     129                 :            : };
     130                 :            : static const BN_ULONG dh2048_256_g[] = {
     131                 :            :         0x664B4C0F6CC41659ULL,0x5E2327CFEF98C582ULL,0xD647D148D4795451ULL,
     132                 :            :         0x2F63078490F00EF8ULL,0x184B523D1DB246C3ULL,0xC7891428CDC67EB6ULL,
     133                 :            :         0x7FD028370DF92B52ULL,0xB3353BBB64E0EC37ULL,0xECD06E1557CD0915ULL,
     134                 :            :         0xB7D2BBD2DF016199ULL,0xC8484B1E052588B9ULL,0xDB2A3B7313D3FE14ULL,
     135                 :            :         0xD052B985D182EA0AULL,0xA4BD1BFFE83B9C80ULL,0xDFC967C1FB3F2E55ULL,
     136                 :            :         0xB5045AF2767164E1ULL,0x1D14348F6F2F9193ULL,0x64E67982428EBC83ULL,
     137                 :            :         0x8AC376D282D6ED38ULL,0x777DE62AAAB8A862ULL,0xDDF463E5E9EC144BULL,
     138                 :            :         0x0196F931C77A57F2ULL,0xA55AE31341000A65ULL,0x901228F8C28CBB18ULL,
     139                 :            :         0xBC3773BF7E8C6F62ULL,0xBE3A6C1B0C6B47B1ULL,0xFF4FED4AAC0BB555ULL,
     140                 :            :         0x10DBC15077BE463FULL,0x07F4793A1A0BA125ULL,0x4CA7B18F21EF2054ULL,
     141                 :            :         0x2E77506660EDBD48ULL,0x3FB32C9B73134D0BULL
     142                 :            : };
     143                 :            : static const BN_ULONG dh2048_256_q[] = {
     144                 :            :         0xA308B0FE64F5FBD3ULL,0x99B1A47D1EB3750BULL,0xB447997640129DA2ULL,
     145                 :            :         0x8CF83642A709A097ULL
     146                 :            : };
     147                 :            : 
     148                 :            : #elif BN_BITS2 == 32
     149                 :            : 
     150                 :            : static const BN_ULONG dh1024_160_p[] = {
     151                 :            :         0x2E4A4371,0xDF1FB2BC,0x6D4DA708,0xE68CFDA7,0x365C1A65,0x45BF37DF,
     152                 :            :         0x0DC8B4BD,0xA151AF5F,0xF55BCCC0,0xFAA31A4F,0xE5644738,0x4EFFD6FA,
     153                 :            :         0x219A7372,0x98488E9C,0x90C4BD70,0xACCBDD7D,0xD49B83BF,0x24975C3C,
     154                 :            :         0xA9061123,0x13ECB4AE,0x2EE652C0,0x9838EF1E,0x75A23D18,0x6073E286,
     155                 :            :         0x52D23B61,0x9A6A9DCA,0xFB06A3C6,0x52C99FBC,0xAE5D54EC,0xDE92DE5E,
     156                 :            :         0xA080E01D,0xB10B8F96
     157                 :            : };
     158                 :            : static const BN_ULONG dh1024_160_g[] = {
     159                 :            :         0x22B3B2E5,0x855E6EEB,0xF97C2A24,0x858F4DCE,0x18D08BC8,0x2D779D59,
     160                 :            :         0x8E73AFA3,0xD662A4D1,0x69B6A28A,0x1DBF0A01,0x7A091F53,0xA6A24C08,
     161                 :            :         0x63F80A76,0x909D0D22,0xB9A92EE1,0xD7FBD7D3,0x9E2749F4,0x5E91547F,
     162                 :            :         0xB01B886A,0x160217B4,0x5504F213,0x777E690F,0x5C41564B,0x266FEA1E,
     163                 :            :         0x14266D31,0xD6406CFF,0x58AC507F,0xF8104DD2,0xEFB99905,0x6765A442,
     164                 :            :         0xC3FD3412,0xA4D1CBD5
     165                 :            : };
     166                 :            : static const BN_ULONG dh1024_160_q[] = {
     167                 :            :         0x49462353,0x64B7CB9D,0x8ABA4E7D,0x81A8DF27,0xF518AA87
     168                 :            : };
     169                 :            : 
     170                 :            : static const BN_ULONG dh2048_224_p[] = {
     171                 :            :         0x0C10E64F,0x0AC4DFFE,0x4E71B81C,0xCF9DE538,0xFFA31F71,0x7EF363E2,
     172                 :            :         0x6B8E75B9,0xE3FB73C1,0x4BA80A29,0xC9B53DCF,0x16E79763,0x23F10B0E,
     173                 :            :         0x13042E9B,0xC52172E4,0xC928B2B9,0xBE60E69C,0xB9E587E8,0x80CD86A1,
     174                 :            :         0x98C641A4,0x315D75E1,0x44328387,0xCDF93ACC,0xDC0A486D,0x15987D9A,
     175                 :            :         0x1FD5A074,0x7310F712,0xDE31EFDC,0x278273C7,0x415D9330,0x1602E714,
     176                 :            :         0xBC8985DB,0x81286130,0x70918836,0xB3BF8A31,0xB9C49708,0x6A00E0A0,
     177                 :            :         0x8BBC27BE,0xC6BA0B2C,0xED34DBF6,0xC9F98D11,0xB6C12207,0x7AD5B7D0,
     178                 :            :         0x55B7394B,0xD91E8FEF,0xEFDA4DF8,0x9037C9ED,0xAD6AC212,0x6D3F8152,
     179                 :            :         0x1274A0A6,0x1DE6B85A,0x309C180E,0xEB3D688A,0x7BA1DF15,0xAF9A3C40,
     180                 :            :         0xF95A56DB,0xE6FA141D,0xB61D0A75,0xB54B1597,0x683B9FD1,0xA20D64E5,
     181                 :            :         0x9559C51F,0xD660FAA7,0x9123A9D0,0xAD107E1E
     182                 :            : };
     183                 :            : static const BN_ULONG dh2048_224_g[] = {
     184                 :            :         0x191F2BFA,0x84B890D3,0x2A7065B3,0x81BC087F,0xF6EC0179,0x19C418E1,
     185                 :            :         0x71CFFF4C,0x7B5A0F1C,0x9B6AA4BD,0xEDFE72FE,0x94B30269,0x81E1BCFE,
     186                 :            :         0x8D6C0191,0x566AFBB4,0x409D13CD,0xB539CCE3,0x5F2FF381,0x6AA21E7F,
     187                 :            :         0x770589EF,0xD9E263E4,0xD19963DD,0x10E183ED,0x150B8EEB,0xB70A8137,
     188                 :            :         0x28C8F8AC,0x051AE3D4,0x0C1AB15B,0xBB77A86F,0x16A330EF,0x6E3025E3,
     189                 :            :         0xD6F83456,0x19529A45,0x118E98D1,0xF180EB34,0x50717CBE,0xB5F6C6B2,
     190                 :            :         0xDA7460CD,0x09939D54,0x22EA1ED4,0xE2471504,0x521BC98A,0xB8A762D0,
     191                 :            :         0x5AC1348B,0xF4D02727,0x1999024A,0xC1766910,0xA8D66AD7,0xBE5E9001,
     192                 :            :         0x620A8652,0xC57DB17C,0x00C29F52,0xAB739D77,0xA70C4AFA,0xDD921F01,
     193                 :            :         0x10B9A6F0,0xA6824A4E,0xCFE4FFE3,0x74866A08,0x89998CAF,0x6CDEBE7B,
     194                 :            :         0x8FFDAC50,0x9DF30B5C,0x4F2D9AE3,0xAC4032EF
     195                 :            : };
     196                 :            : static const BN_ULONG dh2048_224_q[] = {
     197                 :            :         0xB36371EB,0xBF389A99,0x4738CEBC,0x1F80535A,0x99717710,0xC58D93FE,
     198                 :            :         0x801C0D34
     199                 :            : };
     200                 :            : 
     201                 :            : static const BN_ULONG dh2048_256_p[] = {
     202                 :            :         0x1E1A1597,0xDB094AE9,0xD7EF09CA,0x693877FA,0x6E11715F,0x6116D227,
     203                 :            :         0xC198AF12,0xA4B54330,0xD7014103,0x75F26375,0x54E710C3,0xC3A3960A,
     204                 :            :         0xBD0BE621,0xDED4010A,0x89962856,0xC0B857F6,0x71506026,0xB3CA3F79,
     205                 :            :         0xE6B486F6,0x1CCACB83,0x14056425,0x67E144E5,0xA41825D9,0xF6A167B5,
     206                 :            :         0x96524D8E,0x3AD83477,0x51BFA4AB,0xF13C6D9A,0x35488A0E,0x2D525267,
     207                 :            :         0xCAA6B790,0xB63ACAE1,0x81B23F76,0x4FDB70C5,0x12307F5C,0xBC39A0BF,
     208                 :            :         0xB1E59BB8,0xB941F54E,0xD45F9088,0x6C5BFC11,0x4275BF7B,0x22E0B1EF,
     209                 :            :         0x5B4758C0,0x91F9E672,0x6BCF67ED,0x5A8A9D30,0x97517ABD,0x209E0C64,
     210                 :            :         0x830E9A7C,0x3BF4296D,0x34096FAA,0x16C3D911,0x61B2AA30,0xFAF7DF45,
     211                 :            :         0xD61957D4,0xE00DF8F1,0x435E3B00,0x5D2CEED4,0x660DD0F2,0x8CEEF608,
     212                 :            :         0x65195999,0xFFBBD19C,0xB4B6663C,0x87A8E61D
     213                 :            : };
     214                 :            : static const BN_ULONG dh2048_256_g[] = {
     215                 :            :         0x6CC41659,0x664B4C0F,0xEF98C582,0x5E2327CF,0xD4795451,0xD647D148,
     216                 :            :         0x90F00EF8,0x2F630784,0x1DB246C3,0x184B523D,0xCDC67EB6,0xC7891428,
     217                 :            :         0x0DF92B52,0x7FD02837,0x64E0EC37,0xB3353BBB,0x57CD0915,0xECD06E15,
     218                 :            :         0xDF016199,0xB7D2BBD2,0x052588B9,0xC8484B1E,0x13D3FE14,0xDB2A3B73,
     219                 :            :         0xD182EA0A,0xD052B985,0xE83B9C80,0xA4BD1BFF,0xFB3F2E55,0xDFC967C1,
     220                 :            :         0x767164E1,0xB5045AF2,0x6F2F9193,0x1D14348F,0x428EBC83,0x64E67982,
     221                 :            :         0x82D6ED38,0x8AC376D2,0xAAB8A862,0x777DE62A,0xE9EC144B,0xDDF463E5,
     222                 :            :         0xC77A57F2,0x0196F931,0x41000A65,0xA55AE313,0xC28CBB18,0x901228F8,
     223                 :            :         0x7E8C6F62,0xBC3773BF,0x0C6B47B1,0xBE3A6C1B,0xAC0BB555,0xFF4FED4A,
     224                 :            :         0x77BE463F,0x10DBC150,0x1A0BA125,0x07F4793A,0x21EF2054,0x4CA7B18F,
     225                 :            :         0x60EDBD48,0x2E775066,0x73134D0B,0x3FB32C9B
     226                 :            : };
     227                 :            : static const BN_ULONG dh2048_256_q[] = {
     228                 :            :         0x64F5FBD3,0xA308B0FE,0x1EB3750B,0x99B1A47D,0x40129DA2,0xB4479976,
     229                 :            :         0xA709A097,0x8CF83642
     230                 :            : };
     231                 :            : 
     232                 :            : #else
     233                 :            : #error "unsupported BN_BITS2"
     234                 :            : #endif
     235                 :            : 
     236                 :            : /* Macro to make a BIGNUM from static data */
     237                 :            : 
     238                 :            : #define make_dh_bn(x) static const BIGNUM _bignum_##x = { (BN_ULONG *) x, \
     239                 :            :                         sizeof(x)/sizeof(BN_ULONG),\
     240                 :            :                         sizeof(x)/sizeof(BN_ULONG),\
     241                 :            :                         0, BN_FLG_STATIC_DATA }
     242                 :            : 
     243                 :            : /* Macro to make a DH structure from BIGNUM data. NB: although just copying
     244                 :            :  * the BIGNUM static pointers would be more efficient we can't as they get
     245                 :            :  * wiped using BN_clear_free() when DH_free() is called.
     246                 :            :  */
     247                 :            : 
     248                 :            : #define make_dh(x) \
     249                 :            : DH * DH_get_##x(void) \
     250                 :            :         { \
     251                 :            :         DH *dh; \
     252                 :            :         make_dh_bn(dh##x##_p); \
     253                 :            :         make_dh_bn(dh##x##_q); \
     254                 :            :         make_dh_bn(dh##x##_g); \
     255                 :            :         dh = DH_new(); \
     256                 :            :         if (!dh) \
     257                 :            :                 return NULL; \
     258                 :            :         dh->p = BN_dup(&_bignum_dh##x##_p); \
     259                 :            :         dh->g = BN_dup(&_bignum_dh##x##_g); \
     260                 :            :         dh->q = BN_dup(&_bignum_dh##x##_q); \
     261                 :            :         if (!dh->p || !dh->q || !dh->g) \
     262                 :            :                 { \
     263                 :            :                 DH_free(dh); \
     264                 :            :                 return NULL; \
     265                 :            :                 } \
     266                 :            :         return dh; \
     267                 :            :         }
     268                 :            : 
     269 [ +  - ][ +  - ]:          4 : make_dh(1024_160)
         [ +  - ][ -  + ]
     270 [ +  - ][ +  - ]:          4 : make_dh(2048_224)
         [ +  - ][ -  + ]
     271 [ +  - ][ +  - ]:          4 : make_dh(2048_256)
         [ +  - ][ -  + ]
     272                 :            : 
     273                 :            : 
     274                 :            : 

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