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);
184 outformat=FORMAT_PEM;
191 if (strcmp(*argv,"-inform") == 0)
193 if (--argc < 1) goto bad;
194 informat=str2fmt(*(++argv));
196 else if (strcmp(*argv,"-outform") == 0)
198 if (--argc < 1) goto bad;
199 outformat=str2fmt(*(++argv));
201 else if (strcmp(*argv,"-in") == 0)
203 if (--argc < 1) goto bad;
206 else if (strcmp(*argv,"-out") == 0)
208 if (--argc < 1) goto bad;
211 else if(strcmp(*argv, "-engine") == 0)
213 if (--argc < 1) goto bad;
216 else if (strcmp(*argv,"-text") == 0)
218 else if (strcmp(*argv,"-C") == 0)
220 else if (strcmp(*argv,"-genkey") == 0)
225 else if (strcmp(*argv,"-rand") == 0)
227 if (--argc < 1) goto bad;
231 else if (strcmp(*argv, "-named_curve") == 0)
233 else if (strcmp(*argv, "-NIST_192") == 0)
234 curve_type = EC_GROUP_NIST_PRIME_192;
235 else if (strcmp(*argv, "-NIST_224") == 0)
236 curve_type = EC_GROUP_NIST_PRIME_224;
237 else if (strcmp(*argv, "-NIST_256") == 0)
238 curve_type = EC_GROUP_NIST_PRIME_256;
239 else if (strcmp(*argv, "-NIST_384") == 0)
240 curve_type = EC_GROUP_NIST_PRIME_384;
241 else if (strcmp(*argv, "-NIST_521") == 0)
242 curve_type = EC_GROUP_NIST_PRIME_521;
243 else if (strcmp(*argv, "-X9_62_192v1") == 0)
244 curve_type = EC_GROUP_X9_62_PRIME_192V1;
245 else if (strcmp(*argv, "-X9_62_192v2") == 0)
246 curve_type = EC_GROUP_X9_62_PRIME_192V2;
247 else if (strcmp(*argv, "-X9_62_192v3") == 0)
248 curve_type = EC_GROUP_X9_62_PRIME_192V3;
249 else if (strcmp(*argv, "-X9_62_239v1") == 0)
250 curve_type = EC_GROUP_X9_62_PRIME_239V1;
251 else if (strcmp(*argv, "-X9_62_239v2") == 0)
252 curve_type = EC_GROUP_X9_62_PRIME_239V2;
253 else if (strcmp(*argv, "-X9_62_239v3") == 0)
254 curve_type = EC_GROUP_X9_62_PRIME_239V3;
255 else if (strcmp(*argv, "-X9_62_256v1") == 0)
256 curve_type = EC_GROUP_X9_62_PRIME_256V1;
257 else if (strcmp(*argv, "-noout") == 0)
261 BIO_printf(bio_err,"unknown option %s\n",*argv);
272 BIO_printf(bio_err,"%s [options] [bits] <infile >outfile\n",prog);
273 BIO_printf(bio_err,"where options are\n");
274 BIO_printf(bio_err," -inform arg input format - DER or PEM\n");
275 BIO_printf(bio_err," -outform arg output format - DER or PEM\n");
276 BIO_printf(bio_err," -in arg input file\n");
277 BIO_printf(bio_err," -out arg output file\n");
278 BIO_printf(bio_err," -text print the key in text\n");
279 BIO_printf(bio_err," -C Output C code\n");
280 BIO_printf(bio_err," -noout no output\n");
281 BIO_printf(bio_err," -rand files to use for random number input\n");
282 BIO_printf(bio_err," -engine e use engine e, possibly a hardware device.\n");
283 BIO_printf(bio_err," -named_curve use the curve oid instead of the parameters\n");
284 BIO_printf(bio_err," -NIST_192 use the NIST recommeded curve parameters over a 192 bit prime field\n");
285 BIO_printf(bio_err," -NIST_224 use the NIST recommeded curve parameters over a 224 bit prime field\n");
286 BIO_printf(bio_err," -NIST_256 use the NIST recommeded curve parameters over a 256 bit prime field\n");
287 BIO_printf(bio_err," -NIST_384 use the NIST recommeded curve parameters over a 384 bit prime field\n");
288 BIO_printf(bio_err," -NIST_521 use the NIST recommeded curve parameters over a 521 bit prime field\n");
289 BIO_printf(bio_err," -X9_62_192v1 use the X9_62 192v1 example curve over a 192 bit prime field\n");
290 BIO_printf(bio_err," -X9_62_192v2 use the X9_62 192v2 example curve over a 192 bit prime field\n");
291 BIO_printf(bio_err," -X9_62_192v3 use the X9_62 192v3 example curve over a 192 bit prime field\n");
292 BIO_printf(bio_err," -X9_62_239v1 use the X9_62 239v1 example curve over a 239 bit prime field\n");
293 BIO_printf(bio_err," -X9_62_239v2 use the X9_62 239v2 example curve over a 239 bit prime field\n");
294 BIO_printf(bio_err," -X9_62_239v3 use the X9_62 239v3 example curve over a 239 bit prime field\n");
295 BIO_printf(bio_err," -X9_62_256v1 use the X9_62 239v1 example curve over a 256 bit prime field\n");
299 ERR_load_crypto_strings();
301 in=BIO_new(BIO_s_file());
302 out=BIO_new(BIO_s_file());
303 if ((in == NULL) || (out == NULL))
305 ERR_print_errors(bio_err);
310 BIO_set_fp(in,stdin,BIO_NOCLOSE);
313 if (BIO_read_filename(in,infile) <= 0)
321 BIO_set_fp(out,stdout,BIO_NOCLOSE);
322 #ifdef OPENSSL_SYS_VMS
324 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
325 out = BIO_push(tmpbio, out);
331 if (BIO_write_filename(out,outfile) <= 0)
338 e = setup_engine(bio_err, engine, 0);
342 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
344 BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
345 app_RAND_load_files(inrand));
348 if (curve_type != EC_GROUP_NO_CURVE)
350 if ((ecdsa = ECDSA_new()) == NULL)
352 ecdsa->group = EC_GROUP_new_by_name(curve_type);
354 ECDSA_set_parameter_flags(ecdsa, ECDSA_FLAG_NAMED_CURVE);
356 else if (informat == FORMAT_ASN1)
357 ecdsa = d2i_ECDSAParameters_bio(in,NULL);
358 else if (informat == FORMAT_PEM)
359 ecdsa = PEM_read_bio_ECDSAParameters(in, NULL, NULL, NULL);
362 BIO_printf(bio_err, "bad input format specified\n");
367 BIO_printf(bio_err, "unable to load ECDSA parameters\n");
368 ERR_print_errors(bio_err);
374 ECDSAParameters_print(out, ecdsa);
378 { // TODO : characteristic two
379 int l, len, bits_p, bits_a, bits_b, bits_x, bits_y, bits_o, bits_c;
380 if ((tmp_1 = BN_new()) == NULL || (tmp_2 = BN_new()) == NULL ||
381 (tmp_3 = BN_new()) == NULL || (tmp_4 = BN_new()) == NULL ||
382 (tmp_5 = BN_new()) == NULL || (tmp_6 = BN_new()) == NULL ||
383 (tmp_7 = BN_new()) == NULL || (ctx = BN_CTX_new()) == NULL)
385 perror("OPENSSL_malloc");
388 if (!EC_GROUP_get_curve_GFp(ecdsa->group, tmp_1, tmp_2, tmp_3, ctx))
390 if ((point = EC_GROUP_get0_generator(ecdsa->group)) == NULL)
392 if (!EC_POINT_get_affine_coordinates_GFp(ecdsa->group, point, tmp_4, tmp_5, ctx))
394 if (!EC_GROUP_get_order(ecdsa->group, tmp_6, ctx))
396 if (!EC_GROUP_get_cofactor(ecdsa->group, tmp_7, ctx))
399 len = BN_num_bytes(tmp_1);
400 bits_p = BN_num_bits(tmp_1);
401 bits_a = BN_num_bits(tmp_2);
402 bits_b = BN_num_bits(tmp_3);
403 bits_x = BN_num_bits(tmp_4);
404 bits_y = BN_num_bits(tmp_5);
405 bits_o = BN_num_bits(tmp_6);
406 bits_c = BN_num_bits(tmp_7);
407 data=(unsigned char *)OPENSSL_malloc(len+20);
410 perror("OPENSSL_malloc");
413 l = BN_bn2bin(tmp_1, data);
414 printf("static unsigned char ecdsa%d_p[]={", bits_p);
417 if ((i%12) == 0) printf("\n\t");
418 printf("0x%02X,",data[i]);
422 l = BN_bn2bin(tmp_2, data);
423 printf("static unsigned char ecdsa%d_a[]={",bits_p);
426 if ((i%12) == 0) printf("\n\t");
427 printf("0x%02X,",data[i]);
431 l = BN_bn2bin(tmp_3, data);
432 printf("static unsigned char ecdsa%d_b[]={", bits_p);
435 if ((i%12) == 0) printf("\n\t");
436 printf("0x%02X,",data[i]);
438 printf("\n\t};\n\n");
440 l = BN_bn2bin(tmp_3, data);
441 printf("static unsigned char ecdsa%d_x[]={", bits_x);
444 if ((i%12) == 0) printf("\n\t");
445 printf("0x%02X,",data[i]);
447 printf("\n\t};\n\n");
449 l = BN_bn2bin(tmp_3, data);
450 printf("static unsigned char ecdsa%d_y[]={", bits_y);
453 if ((i%12) == 0) printf("\n\t");
454 printf("0x%02X,",data[i]);
456 printf("\n\t};\n\n");
458 l = BN_bn2bin(tmp_3, data);
459 printf("static unsigned char ecdsa%d_o[]={", bits_o);
462 if ((i%12) == 0) printf("\n\t");
463 printf("0x%02X,",data[i]);
465 printf("\n\t};\n\n");
467 l = BN_bn2bin(tmp_3, data);
468 printf("static unsigned char ecdsa%d_c[]={", bits_c);
471 if ((i%12) == 0) printf("\n\t");
472 printf("0x%02X,",data[i]);
474 printf("\n\t};\n\n");
476 printf("ECDSA *get_ecdsa%d()\n\t{\n",bits_p);
477 printf("\tint ok=1;\n");
478 printf("\tECDSA *ecdsa=NULL;\n");
479 printf("\tEC_POINT *point=NULL;\n");
480 printf("\tBIGNUM *tmp_1=NULL,*tmp_2=NULL,*tmp_3=NULL;\n");
481 printf("\tBN_CTX *ctx=NULL;\n\n");
482 printf("\tecdsa=ECDSA_new();\n");
483 printf("\ttmp_1=BN_new();\n");
484 printf("\ttmp_2=BN_new();\n");
485 printf("\ttmp_3=BN_new();\n");
486 printf("\tctx=BN_CTX_new();\n");
487 printf("\tif (!ecdsa || !tmp_1 || !tmp_2 || !tmp_3 || !ctx) ok=0;\n");
488 printf("\tif (ok && !ecdsa->group=EC_GROUP_new(EC_GFp_mont_method())) == NULL) ok=0;");
489 printf("\tif (ok && !BN_bin2bn(ecdsa%d_p,sizeof(ecdsa%d_p),tmp_1)) ok=0;\n", bits_p, bits_p);
490 printf("\tif (ok && !BN_bin2bn(ecdsa%d_a,sizeof(ecdsa%d_a),tmp_2)) ok=0;\n", bits_p, bits_p);
491 printf("\tif (ok && !BN_bin2bn(ecdsa%d_b,sizeof(ecdsa%d_b),tmp_3)) ok=0;\n", bits_p, bits_p);
492 printf("\tif (ok && !EC_GROUP_set_curve_GFp(ecdsa->group,tmp_1,tmp_2,tmp_3,ctx)) ok=0;\n");
493 printf("\tif (ok && !BN_bin2bn(ecdsa%d_x,sizeof(ecdsa%d_p),tmp_1)) ok=0;\n", bits_p, bits_p);
494 printf("\tif (ok && !BN_bin2bn(ecdsa%d_y,sizeof(ecdsa%d_a),tmp_2)) ok=0;\n", bits_p, bits_p);
495 printf("\tif (ok && (point = EC_POINT_new(ecdsa->group)) == NULL) ok=0;\n");
496 printf("\tif (ok && !EC_POINT_set_affine_coordinates_GFp(ecdsa->group,point,tmp_1,tmp_2,ctx)) ok=0:\n");
497 printf("\tif (ok && !BN_bin2bn(ecdsa%d_o,sizeof(ecdsa%d_b),tmp_1)) ok=0;\n", bits_p, bits_p);
498 printf("\tif (ok && !BN_bin2bn(ecdsa%d_c,sizeof(ecdsa%d_b),tmp_2)) ok=0;\n", bits_p, bits_p);
499 printf("\tif (ok && !EC_GROUP_set_generator(ecdsa->group,point,tmp_1,tmp_2)) ok=0;\n");
500 printf("\tif ((ecdsa->group == NULL) || (ecdsa->pub_key == NULL) || (ecdsa->priv_key == NULL))\n");
501 printf("\t\t{ ECDSA_free(ecdsa); return(NULL); }\n");
502 printf("\treturn(ecdsa);\n\t}\n");
508 if (outformat == FORMAT_ASN1)
509 i = i2d_ECDSAParameters_bio(out, ecdsa);
510 else if (outformat == FORMAT_PEM)
511 i = PEM_write_bio_ECDSAParameters(out, ecdsa);
514 BIO_printf(bio_err,"bad output format specified for outfile\n");
519 BIO_printf(bio_err, "unable to write ECDSA parameters\n");
520 ERR_print_errors(bio_err);
529 if ((ecdsakey = ECDSAParameters_dup(ecdsa)) == NULL) goto end;
530 if (!ECDSA_generate_key(ecdsakey)) goto end;
531 if (outformat == FORMAT_ASN1)
532 i = i2d_ECDSAPrivateKey_bio(out, ecdsakey);
533 else if (outformat == FORMAT_PEM)
534 i = PEM_write_bio_ECDSAPrivateKey(out, ecdsakey, NULL, NULL, 0, NULL, NULL);
537 BIO_printf(bio_err, "bad output format specified for outfile\n");
540 ECDSA_free(ecdsakey);
543 app_RAND_write_file(NULL, bio_err);
546 if (in != NULL) BIO_free(in);
547 if (out != NULL) BIO_free_all(out);
548 if (ecdsa != NULL) ECDSA_free(ecdsa);
549 if (tmp_1) BN_free(tmp_1);
550 if (tmp_2) BN_free(tmp_2);
551 if (tmp_3) BN_free(tmp_3);
552 if (tmp_3) BN_free(tmp_4);
553 if (tmp_3) BN_free(tmp_5);
554 if (tmp_3) BN_free(tmp_6);
555 if (tmp_3) BN_free(tmp_7);
556 if (ctx) BN_CTX_free(ctx);
557 if (data) OPENSSL_free(data);