1 /* crypto/asn1/t_pkey.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
60 * Binary polynomial ECC support in OpenSSL originally developed by
61 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
66 #include <openssl/objects.h>
67 #include <openssl/buffer.h>
68 #include <openssl/bn.h>
69 #ifndef OPENSSL_NO_RSA
70 #include <openssl/rsa.h>
73 #include <openssl/dh.h>
75 #ifndef OPENSSL_NO_DSA
76 #include <openssl/dsa.h>
79 #include <openssl/ec.h>
82 static int print(BIO *fp,const char *str, const BIGNUM *num,
83 unsigned char *buf,int off);
85 static int print_bin(BIO *fp, const char *str, const unsigned char *num,
88 #ifndef OPENSSL_NO_RSA
89 #ifndef OPENSSL_NO_FP_API
90 int RSA_print_fp(FILE *fp, const RSA *x, int off)
95 if ((b=BIO_new(BIO_s_file())) == NULL)
97 RSAerr(RSA_F_RSA_PRINT_FP,ERR_R_BUF_LIB);
100 BIO_set_fp(b,fp,BIO_NOCLOSE);
101 ret=RSA_print(b,x,off);
107 int RSA_print(BIO *bp, const RSA *x, int off)
111 unsigned char *m=NULL;
112 int ret=0, mod_len = 0;
116 buf_len = (size_t)BN_num_bytes(x->n);
118 if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
121 if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
124 if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
127 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
130 if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
133 if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
136 if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
139 m=(unsigned char *)OPENSSL_malloc(buf_len+10);
142 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
147 mod_len = BN_num_bits(x->n);
151 if(!BIO_indent(bp,off,128))
153 if (BIO_printf(bp,"Private-Key: (%d bit)\n", mod_len)
158 BIO_snprintf(str,sizeof str,"Modulus (%d bit):", mod_len);
160 BUF_strlcpy(str,"modulus:",sizeof str);
161 if (!print(bp,str,x->n,m,off)) goto err;
162 s=(x->d == NULL)?"Exponent:":"publicExponent:";
163 if ((x->e != NULL) && !print(bp,s,x->e,m,off))
165 if ((x->d != NULL) && !print(bp,"privateExponent:",x->d,m,off))
167 if ((x->p != NULL) && !print(bp,"prime1:",x->p,m,off))
169 if ((x->q != NULL) && !print(bp,"prime2:",x->q,m,off))
171 if ((x->dmp1 != NULL) && !print(bp,"exponent1:",x->dmp1,m,off))
173 if ((x->dmq1 != NULL) && !print(bp,"exponent2:",x->dmq1,m,off))
175 if ((x->iqmp != NULL) && !print(bp,"coefficient:",x->iqmp,m,off))
179 if (m != NULL) OPENSSL_free(m);
182 #endif /* OPENSSL_NO_RSA */
184 #ifndef OPENSSL_NO_DSA
185 #ifndef OPENSSL_NO_FP_API
186 int DSA_print_fp(FILE *fp, const DSA *x, int off)
191 if ((b=BIO_new(BIO_s_file())) == NULL)
193 DSAerr(DSA_F_DSA_PRINT_FP,ERR_R_BUF_LIB);
196 BIO_set_fp(b,fp,BIO_NOCLOSE);
197 ret=DSA_print(b,x,off);
203 int DSA_print(BIO *bp, const DSA *x, int off)
205 unsigned char *m=NULL;
210 buf_len = (size_t)BN_num_bytes(x->p);
212 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
215 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
218 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
221 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
224 m=(unsigned char *)OPENSSL_malloc(buf_len+10);
227 DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
231 if (x->priv_key != NULL)
233 if(!BIO_indent(bp,off,128))
235 if (BIO_printf(bp,"Private-Key: (%d bit)\n",BN_num_bits(x->p))
239 if ((x->priv_key != NULL) && !print(bp,"priv:",x->priv_key,m,off))
241 if ((x->pub_key != NULL) && !print(bp,"pub: ",x->pub_key,m,off))
243 if ((x->p != NULL) && !print(bp,"P: ",x->p,m,off)) goto err;
244 if ((x->q != NULL) && !print(bp,"Q: ",x->q,m,off)) goto err;
245 if ((x->g != NULL) && !print(bp,"G: ",x->g,m,off)) goto err;
248 if (m != NULL) OPENSSL_free(m);
251 #endif /* !OPENSSL_NO_DSA */
253 #ifndef OPENSSL_NO_EC
254 #ifndef OPENSSL_NO_FP_API
255 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
260 if ((b=BIO_new(BIO_s_file())) == NULL)
262 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP,ERR_R_BUF_LIB);
265 BIO_set_fp(b, fp, BIO_NOCLOSE);
266 ret = ECPKParameters_print(b, x, off);
271 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
276 if ((b=BIO_new(BIO_s_file())) == NULL)
278 ECerr(EC_F_EC_KEY_PRINT_FP, ERR_R_BIO_LIB);
281 BIO_set_fp(b, fp, BIO_NOCLOSE);
282 ret = EC_KEY_print(b, x, off);
288 int ECPKParameters_print(BIO *bp, const EC_GROUP *x, int off)
290 unsigned char *buffer=NULL;
292 int ret=0, reason=ERR_R_BIO_LIB;
294 const EC_POINT *point=NULL;
295 BIGNUM *p=NULL, *a=NULL, *b=NULL, *gen=NULL,
296 *order=NULL, *cofactor=NULL;
297 const unsigned char *seed;
300 static const char *gen_compressed = "Generator (compressed):";
301 static const char *gen_uncompressed = "Generator (uncompressed):";
302 static const char *gen_hybrid = "Generator (hybrid):";
306 reason = ERR_R_PASSED_NULL_PARAMETER;
310 if (EC_GROUP_get_asn1_flag(x))
312 /* the curve parameter are given by an asn1 OID */
315 if (!BIO_indent(bp, off, 128))
318 nid = EC_GROUP_get_curve_name(x);
322 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
324 if (BIO_printf(bp, "\n") <= 0)
329 /* explicit parameters */
331 point_conversion_form_t form;
332 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
334 if (tmp_nid == NID_X9_62_characteristic_two_field)
337 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
338 (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
339 (cofactor = BN_new()) == NULL)
341 reason = ERR_R_MALLOC_FAILURE;
347 if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx))
349 reason = ERR_R_EC_LIB;
353 else /* prime field */
355 if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx))
357 reason = ERR_R_EC_LIB;
362 if ((point = EC_GROUP_get0_generator(x)) == NULL)
364 reason = ERR_R_EC_LIB;
367 if (!EC_GROUP_get_order(x, order, NULL) ||
368 !EC_GROUP_get_cofactor(x, cofactor, NULL))
370 reason = ERR_R_EC_LIB;
374 form = EC_GROUP_get_point_conversion_form(x);
376 if ((gen = EC_POINT_point2bn(x, point,
377 form, NULL, ctx)) == NULL)
379 reason = ERR_R_EC_LIB;
383 buf_len = (size_t)BN_num_bytes(p);
384 if (buf_len < (i = (size_t)BN_num_bytes(a)))
386 if (buf_len < (i = (size_t)BN_num_bytes(b)))
388 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
390 if (buf_len < (i = (size_t)BN_num_bytes(order)))
392 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
395 if ((seed = EC_GROUP_get0_seed(x)) != NULL)
396 seed_len = EC_GROUP_get_seed_len(x);
399 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
401 reason = ERR_R_MALLOC_FAILURE;
405 if (!BIO_indent(bp, off, 128))
408 /* print the 'short name' of the field type */
409 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
415 /* print the 'short name' of the base type OID */
416 int basis_type = EC_GROUP_get_basis_type(x);
420 if (!BIO_indent(bp, off, 128))
423 if (BIO_printf(bp, "Basis Type: %s\n",
424 OBJ_nid2sn(basis_type)) <= 0)
427 /* print the polynomial */
428 if ((p != NULL) && !print(bp, "Polynomial:", p, buffer,
434 if ((p != NULL) && !print(bp, "Prime:", p, buffer,off))
437 if ((a != NULL) && !print(bp, "A: ", a, buffer, off))
439 if ((b != NULL) && !print(bp, "B: ", b, buffer, off))
441 if (form == POINT_CONVERSION_COMPRESSED)
443 if ((gen != NULL) && !print(bp, gen_compressed, gen,
447 else if (form == POINT_CONVERSION_UNCOMPRESSED)
449 if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
453 else /* form == POINT_CONVERSION_HYBRID */
455 if ((gen != NULL) && !print(bp, gen_hybrid, gen,
459 if ((order != NULL) && !print(bp, "Order: ", order,
460 buffer, off)) goto err;
461 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
462 buffer, off)) goto err;
463 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
469 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
485 OPENSSL_free(buffer);
489 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
491 unsigned char *buffer=NULL;
493 int ret=0, reason=ERR_R_BIO_LIB;
494 BIGNUM *pub_key=NULL, *order=NULL;
496 const EC_GROUP *group;
497 const EC_POINT *public_key;
498 const BIGNUM *priv_key;
500 if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
502 reason = ERR_R_PASSED_NULL_PARAMETER;
506 public_key = EC_KEY_get0_public_key(x);
507 if ((pub_key = EC_POINT_point2bn(group, public_key,
508 EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
510 reason = ERR_R_EC_LIB;
514 buf_len = (size_t)BN_num_bytes(pub_key);
515 priv_key = EC_KEY_get0_private_key(x);
516 if (priv_key != NULL)
518 if ((i = (size_t)BN_num_bytes(priv_key)) > buf_len)
523 if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
525 reason = ERR_R_MALLOC_FAILURE;
529 if (priv_key != NULL)
531 if (!BIO_indent(bp, off, 128))
533 if ((order = BN_new()) == NULL)
535 if (!EC_GROUP_get_order(group, order, NULL))
537 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
538 BN_num_bits(order)) <= 0) goto err;
541 if ((priv_key != NULL) && !print(bp, "priv:", priv_key,
544 if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
547 if (!ECPKParameters_print(bp, group, off))
552 ECerr(EC_F_EC_KEY_PRINT, reason);
560 OPENSSL_free(buffer);
563 #endif /* OPENSSL_NO_EC */
565 static int print(BIO *bp, const char *number, const BIGNUM *num, unsigned char *buf,
571 if (num == NULL) return(1);
572 neg = (BN_is_negative(num))?"-":"";
573 if(!BIO_indent(bp,off,128))
577 if (BIO_printf(bp, "%s 0\n", number) <= 0)
582 if (BN_num_bytes(num) <= BN_BYTES)
584 if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
585 (unsigned long)num->d[0],neg,(unsigned long)num->d[0])
591 if (BIO_printf(bp,"%s%s",number,
592 (neg[0] == '-')?" (Negative)":"") <= 0)
594 n=BN_bn2bin(num,&buf[1]);
604 if(BIO_puts(bp,"\n") <= 0
605 || !BIO_indent(bp,off+4,128))
608 if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
611 if (BIO_write(bp,"\n",1) <= 0) return(0);
616 #ifndef OPENSSL_NO_EC
617 static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
630 if (BIO_write(fp, str, off) <= 0)
634 if (BIO_printf(fp,"%s", name) <= 0)
637 for (i=0; i<len; i++)
642 memset(&(str[1]),' ',off+4);
643 if (BIO_write(fp, str, off+1+4) <= 0)
646 if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
649 if (BIO_write(fp,"\n",1) <= 0)
656 #ifndef OPENSSL_NO_DH
657 #ifndef OPENSSL_NO_FP_API
658 int DHparams_print_fp(FILE *fp, const DH *x)
663 if ((b=BIO_new(BIO_s_file())) == NULL)
665 DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
668 BIO_set_fp(b,fp,BIO_NOCLOSE);
669 ret=DHparams_print(b, x);
675 int DHparams_print(BIO *bp, const DH *x)
677 unsigned char *m=NULL;
678 int reason=ERR_R_BUF_LIB,ret=0;
682 buf_len = (size_t)BN_num_bytes(x->p);
685 reason = ERR_R_PASSED_NULL_PARAMETER;
689 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
691 m=(unsigned char *)OPENSSL_malloc(buf_len+10);
694 reason=ERR_R_MALLOC_FAILURE;
698 if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
699 BN_num_bits(x->p)) <= 0)
701 if (!print(bp,"prime:",x->p,m,4)) goto err;
702 if (!print(bp,"generator:",x->g,m,4)) goto err;
705 if (BIO_printf(bp," recommended-private-length: %d bits\n",
706 (int)x->length) <= 0) goto err;
712 DHerr(DH_F_DHPARAMS_PRINT,reason);
714 if (m != NULL) OPENSSL_free(m);
719 #ifndef OPENSSL_NO_DSA
720 #ifndef OPENSSL_NO_FP_API
721 int DSAparams_print_fp(FILE *fp, const DSA *x)
726 if ((b=BIO_new(BIO_s_file())) == NULL)
728 DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
731 BIO_set_fp(b,fp,BIO_NOCLOSE);
732 ret=DSAparams_print(b, x);
738 int DSAparams_print(BIO *bp, const DSA *x)
740 unsigned char *m=NULL;
745 buf_len = (size_t)BN_num_bytes(x->p);
748 DSAerr(DSA_F_DSAPARAMS_PRINT,DSA_R_MISSING_PARAMETERS);
752 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
755 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
757 m=(unsigned char *)OPENSSL_malloc(buf_len+10);
760 DSAerr(DSA_F_DSAPARAMS_PRINT,ERR_R_MALLOC_FAILURE);
764 if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
765 BN_num_bits(x->p)) <= 0)
767 if (!print(bp,"p:",x->p,m,4)) goto err;
768 if ((x->q != NULL) && !print(bp,"q:",x->q,m,4)) goto err;
769 if ((x->g != NULL) && !print(bp,"g:",x->g,m,4)) goto err;
772 if (m != NULL) OPENSSL_free(m);
776 #endif /* !OPENSSL_NO_DSA */
778 #ifndef OPENSSL_NO_EC
779 #ifndef OPENSSL_NO_FP_API
780 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
785 if ((b=BIO_new(BIO_s_file())) == NULL)
787 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
790 BIO_set_fp(b, fp, BIO_NOCLOSE);
791 ret = ECParameters_print(b, x);
797 int ECParameters_print(BIO *bp, const EC_KEY *x)
799 int reason=ERR_R_EC_LIB, ret=0;
801 const EC_GROUP *group;
803 if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
805 reason = ERR_R_PASSED_NULL_PARAMETER;;
809 if ((order = BN_new()) == NULL)
811 reason = ERR_R_MALLOC_FAILURE;
815 if (!EC_GROUP_get_order(group, order, NULL))
817 reason = ERR_R_EC_LIB;
821 if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
822 BN_num_bits(order)) <= 0)
824 if (!ECPKParameters_print(bp, group, 4))
830 ECerr(EC_F_ECPARAMETERS_PRINT, reason);