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:  * The ECDH software is originally written by Douglas Stebila of
   13:  * Sun Microsystems Laboratories.
   14:  *
   15:  */
   16: /* ====================================================================
   17:  * Copyright (c) 1998-2003 The OpenSSL Project.  All rights reserved.
   18:  *
   19:  * Redistribution and use in source and binary forms, with or without
   20:  * modification, are permitted provided that the following conditions
   21:  * are met:
   22:  *
   23:  * 1. Redistributions of source code must retain the above copyright
   24:  *    notice, this list of conditions and the following disclaimer. 
   25:  *
   26:  * 2. Redistributions in binary form must reproduce the above copyright
   27:  *    notice, this list of conditions and the following disclaimer in
   28:  *    the documentation and/or other materials provided with the
   29:  *    distribution.
   30:  *
   31:  * 3. All advertising materials mentioning features or use of this
   32:  *    software must display the following acknowledgment:
   33:  *    "This product includes software developed by the OpenSSL Project
   34:  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
   35:  *
   36:  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
   37:  *    endorse or promote products derived from this software without
   38:  *    prior written permission. For written permission, please contact
   39:  *    openssl-core@openssl.org.
   40:  *
   41:  * 5. Products derived from this software may not be called "OpenSSL"
   42:  *    nor may "OpenSSL" appear in their names without prior written
   43:  *    permission of the OpenSSL Project.
   44:  *
   45:  * 6. Redistributions of any form whatsoever must retain the following
   46:  *    acknowledgment:
   47:  *    "This product includes software developed by the OpenSSL Project
   48:  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
   49:  *
   50:  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
   51:  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   52:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   53:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
   54:  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   55:  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   56:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   57:  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   58:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   59:  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   60:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
   61:  * OF THE POSSIBILITY OF SUCH DAMAGE.
   62:  * ====================================================================
   63:  *
   64:  * This product includes cryptographic software written by Eric Young
   65:  * (eay@cryptsoft.com).  This product includes software written by Tim
   66:  * Hudson (tjh@cryptsoft.com).
   67:  *
   68:  */
   69: 
   70: #include <stdio.h>
   71: #include <stdlib.h>
   72: #include <string.h>
   73: 
   74: #include "../e_os.h"
   75: 
   76: #include <openssl/opensslconf.h>        /* for OPENSSL_NO_ECDH */
   77: #include <openssl/crypto.h>
   78: #include <openssl/bio.h>
   79: #include <openssl/bn.h>
   80: #include <openssl/objects.h>
   81: #include <openssl/rand.h>
   82: #include <openssl/sha.h>
   83: #include <openssl/err.h>
   84: 
   85: #ifdef OPENSSL_NO_ECDH
   86: int main(int argc, char *argv[])
   87: {
   88:     printf("No ECDH support\n");
   89:     return(0);
   90: }
   91: #else
   92: #include <openssl/ec.h>
   93: #include <openssl/ecdh.h>
   94: 
   95: #ifdef OPENSSL_SYS_WIN16
   96: #define MS_CALLBACK     _far _loadds
   97: #else
   98: #define MS_CALLBACK
   99: #endif
  100: 
  101: #if 0
  102: static void MS_CALLBACK cb(int p, int n, void *arg);
  103: #endif
  104: 
  105: static const char rnd_seed[] = "string to make the random number generator think it has entropy";
  106: 
  107: 
  108: static const int KDF1_SHA1_len = 20;
  109: static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
  110:         {
  111: #ifndef OPENSSL_NO_SHA
  112:         if (*outlen < SHA_DIGEST_LENGTH)
  113:                 return NULL;
  114:         else
  115:                 *outlen = SHA_DIGEST_LENGTH;
  116:         return SHA1(in, inlen, out);
  117: #else
  118:         return NULL;
  119: #endif
  120:         }
  121: 
  122: 
  123: static int test_ecdh_curve(int nid, const char *text, BN_CTX *ctx, BIO *out)
  124:         {
  125:         EC_KEY *a=NULL;
  126:         EC_KEY *b=NULL;
  127:         BIGNUM *x_a=NULL, *y_a=NULL,
  128:                *x_b=NULL, *y_b=NULL;
  129:         char buf[12];
  130:         unsigned char *abuf=NULL,*bbuf=NULL;
  131:         int i,alen,blen,aout,bout,ret=0;
  132:         const EC_GROUP *group;
  133: 
  134:         a = EC_KEY_new_by_curve_name(nid);
  135:         b = EC_KEY_new_by_curve_name(nid);
  136:         if (a == NULL || b == NULL)
  137:                 goto err;
  138: 
  139:         group = EC_KEY_get0_group(a);
  140: 
  141:         if ((x_a=BN_new()) == NULL) goto err;
  142:         if ((y_a=BN_new()) == NULL) goto err;
  143:         if ((x_b=BN_new()) == NULL) goto err;
  144:         if ((y_b=BN_new()) == NULL) goto err;
  145: 
  146:         BIO_puts(out,"Testing key generation with ");
  147:         BIO_puts(out,text);
  148: #ifdef NOISY
  149:         BIO_puts(out,"\n");
  150: #else
  151:         (void)BIO_flush(out);
  152: #endif
  153: 
  154:         if (!EC_KEY_generate_key(a)) goto err;
  155:         
  156:         if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field) 
  157:                 {
  158:                 if (!EC_POINT_get_affine_coordinates_GFp(group,
  159:                         EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
  160:                 }
  161:         else
  162:                 {
  163:                 if (!EC_POINT_get_affine_coordinates_GF2m(group,
  164:                         EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
  165:                 }
  166: #ifdef NOISY
  167:         BIO_puts(out,"  pri 1=");
  168:         BN_print(out,a->priv_key);
  169:         BIO_puts(out,"\n  pub 1=");
  170:         BN_print(out,x_a);
  171:         BIO_puts(out,",");
  172:         BN_print(out,y_a);
  173:         BIO_puts(out,"\n");
  174: #else
  175:         BIO_printf(out," .");
  176:         (void)BIO_flush(out);
  177: #endif
  178: 
  179:         if (!EC_KEY_generate_key(b)) goto err;
  180: 
  181:         if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field) 
  182:                 {
  183:                 if (!EC_POINT_get_affine_coordinates_GFp(group, 
  184:                         EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
  185:                 }
  186:         else
  187:                 {
  188:                 if (!EC_POINT_get_affine_coordinates_GF2m(group, 
  189:                         EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
  190:                 }
  191: 
  192: #ifdef NOISY
  193:         BIO_puts(out,"  pri 2=");
  194:         BN_print(out,b->priv_key);
  195:         BIO_puts(out,"\n  pub 2=");
  196:         BN_print(out,x_b);
  197:         BIO_puts(out,",");
  198:         BN_print(out,y_b);
  199:         BIO_puts(out,"\n");
  200: #else
  201:         BIO_printf(out,".");
  202:         (void)BIO_flush(out);
  203: #endif
  204: 
  205:         alen=KDF1_SHA1_len;
  206:         abuf=(unsigned char *)OPENSSL_malloc(alen);
  207:         aout=ECDH_compute_key(abuf,alen,EC_KEY_get0_public_key(b),a,KDF1_SHA1);
  208: 
  209: #ifdef NOISY
  210:         BIO_puts(out,"  key1 =");
  211:         for (i=0; i<aout; i++)
  212:                 {
  213:                 sprintf(buf,"%02X",abuf[i]);
  214:                 BIO_puts(out,buf);
  215:                 }
  216:         BIO_puts(out,"\n");
  217: #else
  218:         BIO_printf(out,".");
  219:         (void)BIO_flush(out);
  220: #endif
  221: 
  222:         blen=KDF1_SHA1_len;
  223:         bbuf=(unsigned char *)OPENSSL_malloc(blen);
  224:         bout=ECDH_compute_key(bbuf,blen,EC_KEY_get0_public_key(a),b,KDF1_SHA1);
  225: 
  226: #ifdef NOISY
  227:         BIO_puts(out,"  key2 =");
  228:         for (i=0; i<bout; i++)
  229:                 {
  230:                 sprintf(buf,"%02X",bbuf[i]);
  231:                 BIO_puts(out,buf);
  232:                 }
  233:         BIO_puts(out,"\n");
  234: #else
  235:         BIO_printf(out,".");
  236:         (void)BIO_flush(out);
  237: #endif
  238: 
  239:         if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))
  240:                 {
  241: #ifndef NOISY
  242:                 BIO_printf(out, " failed\n\n");
  243:                 BIO_printf(out, "key a:\n");
  244:                 BIO_printf(out, "private key: ");
  245:                 BN_print(out, EC_KEY_get0_private_key(a));
  246:                 BIO_printf(out, "\n");
  247:                 BIO_printf(out, "public key (x,y): ");
  248:                 BN_print(out, x_a);
  249:                 BIO_printf(out, ",");
  250:                 BN_print(out, y_a);
  251:                 BIO_printf(out, "\nkey b:\n");
  252:                 BIO_printf(out, "private key: ");
  253:                 BN_print(out, EC_KEY_get0_private_key(b));
  254:                 BIO_printf(out, "\n");
  255:                 BIO_printf(out, "public key (x,y): ");
  256:                 BN_print(out, x_b);
  257:                 BIO_printf(out, ",");
  258:                 BN_print(out, y_b);
  259:                 BIO_printf(out, "\n");
  260:                 BIO_printf(out, "generated key a: ");
  261:                 for (i=0; i<bout; i++)
  262:                         {
  263:                         sprintf(buf, "%02X", bbuf[i]);
  264:                         BIO_puts(out, buf);
  265:                         }
  266:                 BIO_printf(out, "\n");
  267:                 BIO_printf(out, "generated key b: ");
  268:                 for (i=0; i<aout; i++)
  269:                         {
  270:                         sprintf(buf, "%02X", abuf[i]);
  271:                         BIO_puts(out,buf);
  272:                         }
  273:                 BIO_printf(out, "\n");
  274: #endif
  275:                 fprintf(stderr,"Error in ECDH routines\n");
  276:                 ret=0;
  277:                 }
  278:         else
  279:                 {
  280: #ifndef NOISY
  281:                 BIO_printf(out, " ok\n");
  282: #endif
  283:                 ret=1;
  284:                 }
  285: err:
  286:         ERR_print_errors_fp(stderr);
  287: 
  288:         if (abuf != NULL) OPENSSL_free(abuf);
  289:         if (bbuf != NULL) OPENSSL_free(bbuf);
  290:         if (x_a) BN_free(x_a);
  291:         if (y_a) BN_free(y_a);
  292:         if (x_b) BN_free(x_b);
  293:         if (y_b) BN_free(y_b);
  294:         if (b) EC_KEY_free(b);
  295:         if (a) EC_KEY_free(a);
  296:         return(ret);
  297:         }
  298: 
  299: int main(int argc, char *argv[])
  300:         {
  301:         BN_CTX *ctx=NULL;
  302:         int ret=1;
  303:         BIO *out;
  304: 
  305:         CRYPTO_malloc_debug_init();
  306:         CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
  307:         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
  308: 
  309: #ifdef OPENSSL_SYS_WIN32
  310:         CRYPTO_malloc_init();
  311: #endif
  312: 
  313:         RAND_seed(rnd_seed, sizeof rnd_seed);
  314: 
  315:         out=BIO_new(BIO_s_file());
  316:         if (out == NULL) EXIT(1);
  317:         BIO_set_fp(out,stdout,BIO_NOCLOSE);
  318: 
  319:         if ((ctx=BN_CTX_new()) == NULL) goto err;
  320: 
  321:         /* NIST PRIME CURVES TESTS */
  322:         if (!test_ecdh_curve(NID_X9_62_prime192v1, "NIST Prime-Curve P-192", ctx, out)) goto err;
  323:         if (!test_ecdh_curve(NID_secp224r1, "NIST Prime-Curve P-224", ctx, out)) goto err;
  324:         if (!test_ecdh_curve(NID_X9_62_prime256v1, "NIST Prime-Curve P-256", ctx, out)) goto err;
  325:         if (!test_ecdh_curve(NID_secp384r1, "NIST Prime-Curve P-384", ctx, out)) goto err;
  326:         if (!test_ecdh_curve(NID_secp521r1, "NIST Prime-Curve P-521", ctx, out)) goto err;
  327:         /* NIST BINARY CURVES TESTS */
  328:         if (!test_ecdh_curve(NID_sect163k1, "NIST Binary-Curve K-163", ctx, out)) goto err;
  329:         if (!test_ecdh_curve(NID_sect163r2, "NIST Binary-Curve B-163", ctx, out)) goto err;
  330:         if (!test_ecdh_curve(NID_sect233k1, "NIST Binary-Curve K-233", ctx, out)) goto err;
  331:         if (!test_ecdh_curve(NID_sect233r1, "NIST Binary-Curve B-233", ctx, out)) goto err;
  332:         if (!test_ecdh_curve(NID_sect283k1, "NIST Binary-Curve K-283", ctx, out)) goto err;
  333:         if (!test_ecdh_curve(NID_sect283r1, "NIST Binary-Curve B-283", ctx, out)) goto err;
  334:         if (!test_ecdh_curve(NID_sect409k1, "NIST Binary-Curve K-409", ctx, out)) goto err;
  335:         if (!test_ecdh_curve(NID_sect409r1, "NIST Binary-Curve B-409", ctx, out)) goto err;
  336:         if (!test_ecdh_curve(NID_sect571k1, "NIST Binary-Curve K-571", ctx, out)) goto err;
  337:         if (!test_ecdh_curve(NID_sect571r1, "NIST Binary-Curve B-571", ctx, out)) goto err;
  338: 
  339:         ret = 0;
  340: 
  341: err:
  342:         ERR_print_errors_fp(stderr);
  343:         if (ctx) BN_CTX_free(ctx);
  344:         BIO_free(out);
  345:         CRYPTO_cleanup_all_ex_data();
  346:         ERR_remove_state(0);
  347:         CRYPTO_mem_leaks_fp(stderr);
  348:         EXIT(ret);
  349:         return(ret);
  350:         }
  351: 
  352: #if 0
  353: static void MS_CALLBACK cb(int p, int n, void *arg)
  354:         {
  355:         char c='*';
  356: 
  357:         if (p == 0) c='.';
  358:         if (p == 1) c='+';
  359:         if (p == 2) c='*';
  360:         if (p == 3) c='\n';
  361:         BIO_write((BIO *)arg,&c,1);
  362:         (void)BIO_flush((BIO *)arg);
  363: #ifdef LINT
  364:         p=n;
  365: #endif
  366:         }
  367: #endif
  368: #endif