1 /* apps/ecdsaparam.c */
2 /* ====================================================================
3 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * openssl-core@openssl.org.
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
55 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
56 * All rights reserved.
58 * This package is an SSL implementation written
59 * by Eric Young (eay@cryptsoft.com).
60 * The implementation was written so as to conform with Netscapes SSL.
62 * This library is free for commercial and non-commercial use as long as
63 * the following conditions are aheared to. The following conditions
64 * apply to all code found in this distribution, be it the RC4, RSA,
65 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
66 * included with this distribution is covered by the same copyright terms
67 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
69 * Copyright remains Eric Young's, and as such any Copyright notices in
70 * the code are not to be removed.
71 * If this package is used in a product, Eric Young should be given attribution
72 * as the author of the parts of the library used.
73 * This can be in the form of a textual message at program startup or
74 * in documentation (online or textual) provided with the package.
76 * Redistribution and use in source and binary forms, with or without
77 * modification, are permitted provided that the following conditions
79 * 1. Redistributions of source code must retain the copyright
80 * notice, this list of conditions and the following disclaimer.
81 * 2. Redistributions in binary form must reproduce the above copyright
82 * notice, this list of conditions and the following disclaimer in the
83 * documentation and/or other materials provided with the distribution.
84 * 3. All advertising materials mentioning features or use of this software
85 * must display the following acknowledgement:
86 * "This product includes cryptographic software written by
87 * Eric Young (eay@cryptsoft.com)"
88 * The word 'cryptographic' can be left out if the rouines from the library
89 * being used are not cryptographic related :-).
90 * 4. If you include any Windows specific code (or a derivative thereof) from
91 * the apps directory (application code) you must include an acknowledgement:
92 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
94 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
95 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
97 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
98 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
99 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
100 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
101 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
102 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
103 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
106 * The licence and distribution terms for any publically available version or
107 * derivative of this code cannot be changed. i.e. this code cannot simply be
108 * copied and put under another distribution licence
109 * [including the GNU Public Licence.]
112 #ifndef OPENSSL_NO_ECDSA
119 #include <openssl/bio.h>
120 #include <openssl/err.h>
121 #include <openssl/bn.h>
122 #include <openssl/ec.h>
123 #include <openssl/ecdsa.h>
124 #include <openssl/x509.h>
125 #include <openssl/pem.h>
128 #define PROG ecdsaparam_main
130 /* -inform arg - input format - default PEM (DER or PEM)
131 * -outform arg - output format - default PEM
132 * -in arg - input file - default stdin
133 * -out arg - output file - default stdout
138 * -genkey - generate a private public keypair based on the supplied curve
139 * -named_curve - use the curve oid instead of the parameters
140 * -NIST_192 - use the NIST recommeded curve parameters over a 192 bit prime field
141 * -NIST_224 - use the NIST recommeded curve parameters over a 224 bit prime field
142 * -NIST_256 - use the NIST recommeded curve parameters over a 256 bit prime field
143 * -NIST_384 - use the NIST recommeded curve parameters over a 384 bit prime field
144 * -NIST_521 - use the NIST recommeded curve parameters over a 521 bit prime field
145 * -X9_62_192v1 - use the X9_62 192v1 example curve over a 192 bit prime field
146 * -X9_62_192v2 - use the X9_62 192v2 example curve over a 192 bit prime field
147 * -X9_62_192v3 - use the X9_62 192v3 example curve over a 192 bit prime field
148 * -X9_62_239v1 - use the X9_62 239v1 example curve over a 239 bit prime field
149 * -X9_62_239v2 - use the X9_62 239v2 example curve over a 239 bit prime field
150 * -X9_62_239v3 - use the X9_62 239v3 example curve over a 239 bit prime field
151 * -X9_62_256v1 - use the X9_62 239v1 example curve over a 256 bit prime field
154 int MAIN(int, char **);
156 int MAIN(int argc, char **argv)
160 int i, badops = 0, text = 0;
161 BIO *in = NULL, *out = NULL;
162 int informat, outformat, noout = 0, C = 0, ret = 1;
163 char *infile, *outfile, *prog, *inrand = NULL;
167 int curve_type = EC_GROUP_NO_CURVE;
169 BIGNUM *tmp_1 = NULL, *tmp_2 = NULL, *tmp_3 = NULL, *tmp_4 = NULL, *tmp_5 = NULL,
170 *tmp_6 = NULL, *tmp_7 = NULL;
172 EC_POINT *point = NULL;
173 unsigned char *data = NULL;
178 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
179 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
181 if (!load_config(bio_err, NULL))
187 outformat=FORMAT_PEM;
194 if (strcmp(*argv,"-inform") == 0)
196 if (--argc < 1) goto bad;
197 informat=str2fmt(*(++argv));
199 else if (strcmp(*argv,"-outform") == 0)
201 if (--argc < 1) goto bad;
202 outformat=str2fmt(*(++argv));
204 else if (strcmp(*argv,"-in") == 0)
206 if (--argc < 1) goto bad;
209 else if (strcmp(*argv,"-out") == 0)
211 if (--argc < 1) goto bad;
214 else if(strcmp(*argv, "-engine") == 0)
216 if (--argc < 1) goto bad;
219 else if (strcmp(*argv,"-text") == 0)
221 else if (strcmp(*argv,"-C") == 0)
223 else if (strcmp(*argv,"-genkey") == 0)
228 else if (strcmp(*argv,"-rand") == 0)
230 if (--argc < 1) goto bad;
234 else if (strcmp(*argv, "-named_curve") == 0)
236 else if (strcmp(*argv, "-NIST_192") == 0)
237 curve_type = EC_GROUP_NIST_PRIME_192;
238 else if (strcmp(*argv, "-NIST_224") == 0)
239 curve_type = EC_GROUP_NIST_PRIME_224;
240 else if (strcmp(*argv, "-NIST_256") == 0)
241 curve_type = EC_GROUP_NIST_PRIME_256;
242 else if (strcmp(*argv, "-NIST_384") == 0)
243 curve_type = EC_GROUP_NIST_PRIME_384;
244 else if (strcmp(*argv, "-NIST_521") == 0)
245 curve_type = EC_GROUP_NIST_PRIME_521;
246 else if (strcmp(*argv, "-X9_62_192v1") == 0)
247 curve_type = EC_GROUP_X9_62_PRIME_192V1;
248 else if (strcmp(*argv, "-X9_62_192v2") == 0)
249 curve_type = EC_GROUP_X9_62_PRIME_192V2;
250 else if (strcmp(*argv, "-X9_62_192v3") == 0)
251 curve_type = EC_GROUP_X9_62_PRIME_192V3;
252 else if (strcmp(*argv, "-X9_62_239v1") == 0)
253 curve_type = EC_GROUP_X9_62_PRIME_239V1;
254 else if (strcmp(*argv, "-X9_62_239v2") == 0)
255 curve_type = EC_GROUP_X9_62_PRIME_239V2;
256 else if (strcmp(*argv, "-X9_62_239v3") == 0)
257 curve_type = EC_GROUP_X9_62_PRIME_239V3;
258 else if (strcmp(*argv, "-X9_62_256v1") == 0)
259 curve_type = EC_GROUP_X9_62_PRIME_256V1;
260 else if (strcmp(*argv, "-noout") == 0)
264 BIO_printf(bio_err,"unknown option %s\n",*argv);
275 BIO_printf(bio_err,"%s [options] [bits] <infile >outfile\n",prog);
276 BIO_printf(bio_err,"where options are\n");
277 BIO_printf(bio_err," -inform arg input format - DER or PEM\n");
278 BIO_printf(bio_err," -outform arg output format - DER or PEM\n");
279 BIO_printf(bio_err," -in arg input file\n");
280 BIO_printf(bio_err," -out arg output file\n");
281 BIO_printf(bio_err," -text print the key in text\n");
282 BIO_printf(bio_err," -C Output C code\n");
283 BIO_printf(bio_err," -noout no output\n");
284 BIO_printf(bio_err," -rand files to use for random number input\n");
285 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
286 BIO_printf(bio_err," -named_curve use the curve oid instead of the parameters\n");
287 BIO_printf(bio_err," -NIST_192 use the NIST recommeded curve parameters over a 192 bit prime field\n");
288 BIO_printf(bio_err," -NIST_224 use the NIST recommeded curve parameters over a 224 bit prime field\n");
289 BIO_printf(bio_err," -NIST_256 use the NIST recommeded curve parameters over a 256 bit prime field\n");
290 BIO_printf(bio_err," -NIST_384 use the NIST recommeded curve parameters over a 384 bit prime field\n");
291 BIO_printf(bio_err," -NIST_521 use the NIST recommeded curve parameters over a 521 bit prime field\n");
292 BIO_printf(bio_err," -X9_62_192v1 use the X9_62 192v1 example curve over a 192 bit prime field\n");
293 BIO_printf(bio_err," -X9_62_192v2 use the X9_62 192v2 example curve over a 192 bit prime field\n");
294 BIO_printf(bio_err," -X9_62_192v3 use the X9_62 192v3 example curve over a 192 bit prime field\n");
295 BIO_printf(bio_err," -X9_62_239v1 use the X9_62 239v1 example curve over a 239 bit prime field\n");
296 BIO_printf(bio_err," -X9_62_239v2 use the X9_62 239v2 example curve over a 239 bit prime field\n");
297 BIO_printf(bio_err," -X9_62_239v3 use the X9_62 239v3 example curve over a 239 bit prime field\n");
298 BIO_printf(bio_err," -X9_62_256v1 use the X9_62 239v1 example curve over a 256 bit prime field\n");
302 ERR_load_crypto_strings();
304 in=BIO_new(BIO_s_file());
305 out=BIO_new(BIO_s_file());
306 if ((in == NULL) || (out == NULL))
308 ERR_print_errors(bio_err);
313 BIO_set_fp(in,stdin,BIO_NOCLOSE);
316 if (BIO_read_filename(in,infile) <= 0)
324 BIO_set_fp(out,stdout,BIO_NOCLOSE);
325 #ifdef OPENSSL_SYS_VMS
327 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
328 out = BIO_push(tmpbio, out);
334 if (BIO_write_filename(out,outfile) <= 0)
341 e = setup_engine(bio_err, engine, 0);
345 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
347 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
348 app_RAND_load_files(inrand));
351 if (curve_type != EC_GROUP_NO_CURVE)
353 if ((ecdsa = ECDSA_new()) == NULL)
355 ecdsa->group = EC_GROUP_new_by_name(curve_type);
357 ECDSA_set_parameter_flags(ecdsa, ECDSA_FLAG_NAMED_CURVE);
359 else if (informat == FORMAT_ASN1)
360 ecdsa = d2i_ECDSAParameters_bio(in,NULL);
361 else if (informat == FORMAT_PEM)
362 ecdsa = PEM_read_bio_ECDSAParameters(in, NULL, NULL, NULL);
365 BIO_printf(bio_err, "bad input format specified\n");
370 BIO_printf(bio_err, "unable to load ECDSA parameters\n");
371 ERR_print_errors(bio_err);
377 ECDSAParameters_print(out, ecdsa);
381 { /* TODO : characteristic two */
383 if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL ||
384 (tmp_3 = BN_new()) == NULL || (tmp_4 = BN_new()) == NULL ||
385 (tmp_5 = BN_new()) == NULL || (tmp_6 = BN_new()) == NULL ||
386 (tmp_7 = BN_new()) == NULL || (ctx = BN_CTX_new()) == NULL)
388 perror("OPENSSL_malloc");
391 if (!EC_GROUP_get_curve_GFp(ecdsa->group, tmp_1, tmp_2, tmp_3, ctx))
393 if ((point = EC_GROUP_get0_generator(ecdsa->group)) == NULL)
395 if (!EC_POINT_get_affine_coordinates_GFp(ecdsa->group, point, tmp_4, tmp_5, ctx))
397 if (!EC_GROUP_get_order(ecdsa->group, tmp_6, ctx))
399 if (!EC_GROUP_get_cofactor(ecdsa->group, tmp_7, ctx))
402 len = BN_num_bytes(tmp_1);
403 bits_p = BN_num_bits(tmp_1);
404 data=(unsigned char *)OPENSSL_malloc(len+20);
407 perror("OPENSSL_malloc");
410 l = BN_bn2bin(tmp_1, data);
411 printf("static unsigned char ecdsa%d_p[]={", bits_p);
414 if ((i%12) == 0) printf("\n\t");
415 printf("0x%02X,",data[i]);
419 l = BN_bn2bin(tmp_2, data);
420 printf("static unsigned char ecdsa%d_a[]={",bits_p);
423 if ((i%12) == 0) printf("\n\t");
424 printf("0x%02X,",data[i]);
428 l = BN_bn2bin(tmp_3, data);
429 printf("static unsigned char ecdsa%d_b[]={", bits_p);
432 if ((i%12) == 0) printf("\n\t");
433 printf("0x%02X,",data[i]);
435 printf("\n\t};\n\n");
437 l = BN_bn2bin(tmp_3, data);
438 printf("static unsigned char ecdsa%d_x[]={", bits_p);
441 if ((i%12) == 0) printf("\n\t");
442 printf("0x%02X,",data[i]);
444 printf("\n\t};\n\n");
446 l = BN_bn2bin(tmp_3, data);
447 printf("static unsigned char ecdsa%d_y[]={", bits_p);
450 if ((i%12) == 0) printf("\n\t");
451 printf("0x%02X,",data[i]);
453 printf("\n\t};\n\n");
455 l = BN_bn2bin(tmp_3, data);
456 printf("static unsigned char ecdsa%d_o[]={", bits_p);
459 if ((i%12) == 0) printf("\n\t");
460 printf("0x%02X,",data[i]);
462 printf("\n\t};\n\n");
464 l = BN_bn2bin(tmp_3, data);
465 printf("static unsigned char ecdsa%d_c[]={", bits_p);
468 if ((i%12) == 0) printf("\n\t");
469 printf("0x%02X,",data[i]);
471 printf("\n\t};\n\n");
473 printf("ECDSA *get_ecdsa%d(void)\n\t{\n",bits_p);
474 printf("\tECDSA *ecdsa=NULL;\n");
475 printf("\tEC_POINT *point=NULL;\n");
476 printf("\tBIGNUM *tmp_1=NULL,*tmp_2=NULL,*tmp_3=NULL;\n\n");
477 printf("\tif ((ecdsa=ECDSA_new()) == NULL)\n");
478 printf("\t\treturn(NULL);\n");
479 printf("\t/* first : generate EC_GROUP-structure */\n");
480 printf("\ttmp_1 = BN_bin2bn(ecdsa%d_p, sizeof(ecdsa%d_p), NULL);\n", bits_p, bits_p);
481 printf("\ttmp_2 = BN_bin2bn(ecdsa%d_a, sizeof(ecdsa%d_a), NULL);\n", bits_p, bits_p);
482 printf("\ttmp_3 = BN_bin2bn(ecdsa%d_b, sizeof(ecdsa%d_b), NULL);\n", bits_p, bits_p);
483 printf("\tecdsa->group = EC_GROUP_new_curve_GFp(tmp_1, tmp_2, tmp_3, NULL);\n");
484 printf("\t/* second : set coordinates of the generating point */\n");
485 printf("\tBN_bin2bn(ecdsa%d_x, sizeof(ecdsa%d_x), tmp_1);\n", bits_p, bits_p);
486 printf("\tBN_bin2bn(ecdsa%d_y, sizeof(ecdsa%d_y), tmp_2);\n", bits_p, bits_p);
487 printf("\tif ((point = EC_POINT_new(ecdsa->group)) == NULL)\n");
488 printf("\t{\n\t\tECDSA_free(ecdsa); BN_free(tmp_1); BN_free(tmp_2); BN_free(tmp_3);\n");
489 printf("\t\treturn(NULL);\n\t}\n");
490 printf("\tEC_POINT_set_affine_coordinates_GFp(ecdsa->group, point, tmp_1, tmp_2, NULL);\n");
491 printf("\t/* and finally : insert the generating point and its order in the EC_GROUP-structure */\n");
492 printf("\tBN_bin2bn(ecdsa%d_o, sizeof(ecdsa%d_o), tmp_1);\n", bits_p, bits_p);
493 printf("\tBN_bin2bn(ecdsa%d_c, sizeof(ecdsa%d_c), tmp_2);\n", bits_p, bits_p);
494 printf("\tEC_GROUP_set_generator(ecdsa->group, point, tmp_1, tmp_2);\n");
495 printf("\tBN_free(tmp_1); BN_free(tmp_2); BN_free(tmp_3);\n");
496 printf("\tEC_POINT_free(point);\n");
497 printf("\treturn(ecdsa);\n\t}\n");
503 if (outformat == FORMAT_ASN1)
504 i = i2d_ECDSAParameters_bio(out, ecdsa);
505 else if (outformat == FORMAT_PEM)
506 i = PEM_write_bio_ECDSAParameters(out, ecdsa);
509 BIO_printf(bio_err,"bad output format specified for outfile\n");
514 BIO_printf(bio_err, "unable to write ECDSA parameters\n");
515 ERR_print_errors(bio_err);
524 if ((ecdsakey = ECDSAParameters_dup(ecdsa)) == NULL) goto end;
525 if (!ECDSA_generate_key(ecdsakey)) goto end;
526 if (outformat == FORMAT_ASN1)
527 i = i2d_ECDSAPrivateKey_bio(out, ecdsakey);
528 else if (outformat == FORMAT_PEM)
529 i = PEM_write_bio_ECDSAPrivateKey(out, ecdsakey, NULL, NULL, 0, NULL, NULL);
532 BIO_printf(bio_err, "bad output format specified for outfile\n");
535 ECDSA_free(ecdsakey);
538 app_RAND_write_file(NULL, bio_err);
541 if (in != NULL) BIO_free(in);
542 if (out != NULL) BIO_free_all(out);
543 if (ecdsa != NULL) ECDSA_free(ecdsa);
544 if (tmp_1) BN_free(tmp_1);
545 if (tmp_2) BN_free(tmp_2);
546 if (tmp_3) BN_free(tmp_3);
547 if (tmp_3) BN_free(tmp_4);
548 if (tmp_3) BN_free(tmp_5);
549 if (tmp_3) BN_free(tmp_6);
550 if (tmp_3) BN_free(tmp_7);
551 if (ctx) BN_CTX_free(ctx);
552 if (data) OPENSSL_free(data);