crypto/ecdh/ecdhtest.c

   1 /* crypto/ecdh/ecdhtest.c */
   2 /* ====================================================================
   3  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
   4  *
   5  * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
   6  * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
   7  * to the OpenSSL project.
   8  *
   9  * The ECC Code is licensed pursuant to the OpenSSL open source
  10  * license provided below.
  11  *
  12  * In addition, Sun covenants to all licensees who provide a reciprocal
  13  * covenant with respect to their own patents if any, not to sue under
  14  * current and future patent claims necessarily infringed by the making,
  15  * using, practicing, selling, offering for sale and/or otherwise
  16  * disposing of the ECC Code as delivered hereunder (or portions thereof),
  17  * provided that such covenant shall not apply:
  18  *  1) for code that a licensee deletes from the ECC Code;
  19  *  2) separates from the ECC Code; or
  20  *  3) for infringements caused by:
  21  *       i) the modification of the ECC Code or
  22  *      ii) the combination of the ECC Code with other software or
  23  *          devices where such combination causes the infringement.
  24  *
  25  * The ECDH software is originally written by Douglas Stebila of
  26  * Sun Microsystems Laboratories.
  27  *
  28  */
  29 /* ====================================================================
  30  * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
  31  *
  32  * Redistribution and use in source and binary forms, with or without
  33  * modification, are permitted provided that the following conditions
  34  * are met:
  35  *
  36  * 1. Redistributions of source code must retain the above copyright
  37  *    notice, this list of conditions and the following disclaimer.
  38  *
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in
  41  *    the documentation and/or other materials provided with the
  42  *    distribution.
  43  *
  44  * 3. All advertising materials mentioning features or use of this
  45  *    software must display the following acknowledgment:
  46  *    "This product includes software developed by the OpenSSL Project
  47  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  48  *
  49  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  50  *    endorse or promote products derived from this software without
  51  *    prior written permission. For written permission, please contact
  52  *    openssl-core@openssl.org.
  53  *
  54  * 5. Products derived from this software may not be called "OpenSSL"
  55  *    nor may "OpenSSL" appear in their names without prior written
  56  *    permission of the OpenSSL Project.
  57  *
  58  * 6. Redistributions of any form whatsoever must retain the following
  59  *    acknowledgment:
  60  *    "This product includes software developed by the OpenSSL Project
  61  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  62  *
  63  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  64  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  65  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  66  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  67  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  68  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  69  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  70  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  71  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  72  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  73  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  74  * OF THE POSSIBILITY OF SUCH DAMAGE.
  75  * ====================================================================
  76  *
  77  * This product includes cryptographic software written by Eric Young
  78  * (eay@cryptsoft.com).  This product includes software written by Tim
  79  * Hudson (tjh@cryptsoft.com).
  80  *
  81  */
  82
  83 #include <stdio.h>
  84 #include <stdlib.h>
  85 #include <string.h>
  86 #ifdef OPENSSL_SYS_WINDOWS
  87 #include "../bio/bss_file.c"
  88 #endif
  89 #include <openssl/crypto.h>
  90 #include <openssl/bio.h>
  91 #include <openssl/bn.h>
  92 #include <openssl/ec.h>
  93 #include <openssl/objects.h>
  94 #include <openssl/rand.h>
  95 #include <openssl/err.h>
  96
  97 #ifdef OPENSSL_NO_ECDH
  98 int main(int argc, char *argv[])
  99 {
 100     printf("No ECDH support\n");
 101     return(0);
 102 }
 103 #else
 104 #include <openssl/ecdh.h>
 105
 106 #ifdef OPENSSL_SYS_WIN16
 107 #define MS_CALLBACK     _far _loadds
 108 #else
 109 #define MS_CALLBACK
 110 #endif
 111
 112 static void MS_CALLBACK cb(int p, int n, void *arg);
 113 #ifdef OPENSSL_NO_STDIO
 114 #define APPS_WIN16
 115 #include "bss_file.c"
 116 #endif
 117
 118 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
 119
 120 int test_ecdh_curve(int , char *, BN_CTX *, BIO *);
 121
 122 int test_ecdh_curve(int nid, char *text, BN_CTX *ctx, BIO *out)
 123         {
 124         EC_KEY *a=NULL;
 125         EC_KEY *b=NULL;
 126         BIGNUM *x=NULL, *y=NULL;
 127         char buf[12];
 128         unsigned char *abuf=NULL,*bbuf=NULL;
 129         int i,alen,blen,aout,bout,ret=0;
 130
 131         if ((a=EC_KEY_new()) == NULL) goto err;
 132         if ((a->group=EC_GROUP_new_by_name(nid)) == NULL) goto err;
 133
 134         if ((b=EC_KEY_new()) == NULL) goto err;
 135         b->group = a->group;
 136
 137         if ((x=BN_new()) == NULL) goto err;
 138         if ((y=BN_new()) == NULL) goto err;
 139
 140         BIO_puts(out,"Testing key generation with ");
 141         BIO_puts(out,text);
 142         BIO_puts(out,"\n");
 143
 144         if (!EC_KEY_generate_key(a)) goto err;
 145         BIO_puts(out,"  pri 1=");
 146         BN_print(out,a->priv_key);
 147         BIO_puts(out,"\n  pub 1=");
 148         if (EC_METHOD_get_field_type(EC_GROUP_method_of(a->group)) == NID_X9_62_prime_field)
 149                 {
 150                 if (!EC_POINT_get_affine_coordinates_GFp(a->group, a->pub_key, x, y, ctx)) goto err;
 151                 }
 152         else
 153                 {
 154                 if (!EC_POINT_get_affine_coordinates_GF2m(a->group, a->pub_key, x, y, ctx)) goto err;
 155                 }
 156         BN_print(out,x);
 157         BIO_puts(out,",");
 158         BN_print(out,y);
 159         BIO_puts(out,"\n");
 160
 161         if (!EC_KEY_generate_key(b)) goto err;
 162         BIO_puts(out,"  pri 2=");
 163         BN_print(out,b->priv_key);
 164         BIO_puts(out,"\n  pub 2=");
 165         if (EC_METHOD_get_field_type(EC_GROUP_method_of(b->group)) == NID_X9_62_prime_field)
 166                 {
 167                 if (!EC_POINT_get_affine_coordinates_GFp(b->group, b->pub_key, x, y, ctx)) goto err;
 168                 }
 169         else
 170                 {
 171                 if (!EC_POINT_get_affine_coordinates_GF2m(a->group, b->pub_key, x, y, ctx)) goto err;
 172                 }
 173         BN_print(out,x);
 174         BIO_puts(out,",");
 175         BN_print(out,y);
 176         BIO_puts(out,"\n");
 177
 178         alen=ECDH_size(a);
 179         abuf=(unsigned char *)OPENSSL_malloc(alen);
 180         aout=ECDH_compute_key(abuf,b->pub_key,a);
 181
 182         BIO_puts(out,"  key1 =");
 183         for (i=0; i<aout; i++)
 184                 {
 185                 sprintf(buf,"%02X",abuf[i]);
 186                 BIO_puts(out,buf);
 187                 }
 188         BIO_puts(out,"\n");
 189
 190         blen=ECDH_size(b);
 191         bbuf=(unsigned char *)OPENSSL_malloc(blen);
 192         bout=ECDH_compute_key(bbuf,a->pub_key,b);
 193
 194         BIO_puts(out,"  key2 =");
 195         for (i=0; i<bout; i++)
 196                 {
 197                 sprintf(buf,"%02X",bbuf[i]);
 198                 BIO_puts(out,buf);
 199                 }
 200         BIO_puts(out,"\n");
 201         if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))
 202                 {
 203                 fprintf(stderr,"Error in ECDH routines\n");
 204                 ret=0;
 205                 }
 206         else
 207                 ret=1;
 208 err:
 209         ERR_print_errors_fp(stderr);
 210
 211         if (abuf != NULL) OPENSSL_free(abuf);
 212         if (bbuf != NULL) OPENSSL_free(bbuf);
 213         if (x) BN_free(x);
 214         if (y) BN_free(y);
 215         if (a->group) EC_GROUP_free(a->group);
 216         a->group = b->group = NULL;
 217         if (b) EC_KEY_free(b);
 218         if (a) EC_KEY_free(a);
 219         return(ret);
 220         }
 221
 222 int main(int argc, char *argv[])
 223         {
 224         BN_CTX *ctx=NULL;
 225         int ret=1;
 226         BIO *out;
 227
 228         CRYPTO_malloc_debug_init();
 229         CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
 230         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
 231
 232 #ifdef OPENSSL_SYS_WIN32
 233         CRYPTO_malloc_init();
 234 #endif
 235
 236         RAND_seed(rnd_seed, sizeof rnd_seed);
 237
 238         out=BIO_new(BIO_s_file());
 239         if (out == NULL) exit(1);
 240         BIO_set_fp(out,stdout,BIO_NOCLOSE);
 241
 242         if ((ctx=BN_CTX_new()) == NULL) goto err;
 243
 244         /* NIST PRIME CURVES TESTS */
 245         if (!test_ecdh_curve(EC_GROUP_NIST_PRIME_192, "NIST Prime-Curve P-192", ctx, out)) goto err;
 246         if (!test_ecdh_curve(EC_GROUP_NIST_PRIME_224, "NIST Prime-Curve P-224", ctx, out)) goto err;
 247         if (!test_ecdh_curve(EC_GROUP_NIST_PRIME_256, "NIST Prime-Curve P-256", ctx, out)) goto err;
 248         if (!test_ecdh_curve(EC_GROUP_NIST_PRIME_384, "NIST Prime-Curve P-384", ctx, out)) goto err;
 249         if (!test_ecdh_curve(EC_GROUP_NIST_PRIME_521, "NIST Prime-Curve P-521", ctx, out)) goto err;
 250         /* NIST BINARY CURVES TESTS */
 251         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_K163, "NIST Binary-Curve K-163", ctx, out)) goto err;
 252         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_B163, "NIST Binary-Curve B-163", ctx, out)) goto err;
 253         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_K233, "NIST Binary-Curve K-233", ctx, out)) goto err;
 254         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_B233, "NIST Binary-Curve B-233", ctx, out)) goto err;
 255         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_K283, "NIST Binary-Curve K-283", ctx, out)) goto err;
 256         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_B283, "NIST Binary-Curve B-283", ctx, out)) goto err;
 257         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_K409, "NIST Binary-Curve K-409", ctx, out)) goto err;
 258         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_B409, "NIST Binary-Curve B-409", ctx, out)) goto err;
 259         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_K571, "NIST Binary-Curve K-571", ctx, out)) goto err;
 260         if (!test_ecdh_curve(EC_GROUP_NIST_CHAR2_B571, "NIST Binary-Curve B-571", ctx, out)) goto err;
 261
 262         ret = 0;
 263
 264 err:
 265         ERR_print_errors_fp(stderr);
 266         if (ctx) BN_CTX_free(ctx);
 267         BIO_free(out);
 268         CRYPTO_cleanup_all_ex_data();
 269         ERR_remove_state(0);
 270         CRYPTO_mem_leaks_fp(stderr);
 271         exit(ret);
 272         return(ret);
 273         }
 274
 275 static void MS_CALLBACK cb(int p, int n, void *arg)
 276         {
 277         char c='*';
 278
 279         if (p == 0) c='.';
 280         if (p == 1) c='+';
 281         if (p == 2) c='*';
 282         if (p == 3) c='\n';
 283         BIO_write((BIO *)arg,&c,1);
 284         (void)BIO_flush((BIO *)arg);
 285 #ifdef LINT
 286         p=n;
 287 #endif
 288         }
 289 #endif