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) {
96 RSAerr(RSA_F_RSA_PRINT_FP, ERR_R_BUF_LIB);
99 BIO_set_fp(b, fp, BIO_NOCLOSE);
100 ret = RSA_print(b, x, off);
106 int RSA_print(BIO *bp, const RSA *x, int off)
110 unsigned char *m = NULL;
111 int ret = 0, mod_len = 0;
112 size_t buf_len = 0, i;
115 buf_len = (size_t)BN_num_bytes(x->n);
117 if (buf_len < (i = (size_t)BN_num_bytes(x->e)))
120 if (buf_len < (i = (size_t)BN_num_bytes(x->d)))
123 if (buf_len < (i = (size_t)BN_num_bytes(x->p)))
126 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
129 if (buf_len < (i = (size_t)BN_num_bytes(x->dmp1)))
132 if (buf_len < (i = (size_t)BN_num_bytes(x->dmq1)))
135 if (buf_len < (i = (size_t)BN_num_bytes(x->iqmp)))
138 m = (unsigned char *)OPENSSL_malloc(buf_len + 10);
140 RSAerr(RSA_F_RSA_PRINT, ERR_R_MALLOC_FAILURE);
145 mod_len = BN_num_bits(x->n);
148 if (!BIO_indent(bp, off, 128))
150 if (BIO_printf(bp, "Private-Key: (%d bit)\n", mod_len)
156 BIO_snprintf(str, sizeof str, "Modulus (%d bit):", mod_len);
158 BUF_strlcpy(str, "modulus:", sizeof str);
159 if (!print(bp, str, x->n, m, off))
161 s = (x->d == NULL) ? "Exponent:" : "publicExponent:";
162 if ((x->e != NULL) && !print(bp, s, x->e, m, off))
164 if ((x->d != NULL) && !print(bp, "privateExponent:", x->d, m, off))
166 if ((x->p != NULL) && !print(bp, "prime1:", x->p, m, off))
168 if ((x->q != NULL) && !print(bp, "prime2:", x->q, m, off))
170 if ((x->dmp1 != NULL) && !print(bp, "exponent1:", x->dmp1, m, off))
172 if ((x->dmq1 != NULL) && !print(bp, "exponent2:", x->dmq1, m, off))
174 if ((x->iqmp != NULL) && !print(bp, "coefficient:", x->iqmp, m, off))
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) {
192 DSAerr(DSA_F_DSA_PRINT_FP, ERR_R_BUF_LIB);
195 BIO_set_fp(b, fp, BIO_NOCLOSE);
196 ret = DSA_print(b, x, off);
202 int DSA_print(BIO *bp, const DSA *x, int off)
204 unsigned char *m = NULL;
206 size_t buf_len = 0, i;
209 buf_len = (size_t)BN_num_bytes(x->p);
211 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
214 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
217 if (buf_len < (i = (size_t)BN_num_bytes(x->priv_key)))
220 if (buf_len < (i = (size_t)BN_num_bytes(x->pub_key)))
223 m = (unsigned char *)OPENSSL_malloc(buf_len + 10);
225 DSAerr(DSA_F_DSA_PRINT, ERR_R_MALLOC_FAILURE);
229 if (x->priv_key != NULL) {
230 if (!BIO_indent(bp, off, 128))
232 if (BIO_printf(bp, "Private-Key: (%d bit)\n", BN_num_bits(x->p))
237 if ((x->priv_key != NULL) && !print(bp, "priv:", x->priv_key, m, off))
239 if ((x->pub_key != NULL) && !print(bp, "pub: ", x->pub_key, m, off))
241 if ((x->p != NULL) && !print(bp, "P: ", x->p, m, off))
243 if ((x->q != NULL) && !print(bp, "Q: ", x->q, m, off))
245 if ((x->g != NULL) && !print(bp, "G: ", x->g, m, off))
253 #endif /* !OPENSSL_NO_DSA */
255 #ifndef OPENSSL_NO_EC
256 # ifndef OPENSSL_NO_FP_API
257 int ECPKParameters_print_fp(FILE *fp, const EC_GROUP *x, int off)
262 if ((b = BIO_new(BIO_s_file())) == NULL) {
263 ECerr(EC_F_ECPKPARAMETERS_PRINT_FP, ERR_R_BUF_LIB);
266 BIO_set_fp(b, fp, BIO_NOCLOSE);
267 ret = ECPKParameters_print(b, x, off);
272 int EC_KEY_print_fp(FILE *fp, const EC_KEY *x, int off)
277 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;
291 size_t buf_len = 0, i;
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):";
305 reason = ERR_R_PASSED_NULL_PARAMETER;
309 if (EC_GROUP_get_asn1_flag(x)) {
310 /* the curve parameter are given by an asn1 OID */
313 if (!BIO_indent(bp, off, 128))
316 nid = EC_GROUP_get_curve_name(x);
320 if (BIO_printf(bp, "ASN1 OID: %s", OBJ_nid2sn(nid)) <= 0)
322 if (BIO_printf(bp, "\n") <= 0)
325 /* explicit parameters */
327 point_conversion_form_t form;
328 int tmp_nid = EC_METHOD_get_field_type(EC_GROUP_method_of(x));
330 if (tmp_nid == NID_X9_62_characteristic_two_field)
333 if ((p = BN_new()) == NULL || (a = BN_new()) == NULL ||
334 (b = BN_new()) == NULL || (order = BN_new()) == NULL ||
335 (cofactor = BN_new()) == NULL) {
336 reason = ERR_R_MALLOC_FAILURE;
341 if (!EC_GROUP_get_curve_GF2m(x, p, a, b, ctx)) {
342 reason = ERR_R_EC_LIB;
345 } else { /* prime field */
347 if (!EC_GROUP_get_curve_GFp(x, p, a, b, ctx)) {
348 reason = ERR_R_EC_LIB;
353 if ((point = EC_GROUP_get0_generator(x)) == NULL) {
354 reason = ERR_R_EC_LIB;
357 if (!EC_GROUP_get_order(x, order, NULL) ||
358 !EC_GROUP_get_cofactor(x, cofactor, NULL)) {
359 reason = ERR_R_EC_LIB;
363 form = EC_GROUP_get_point_conversion_form(x);
365 if ((gen = EC_POINT_point2bn(x, point, form, NULL, ctx)) == NULL) {
366 reason = ERR_R_EC_LIB;
370 buf_len = (size_t)BN_num_bytes(p);
371 if (buf_len < (i = (size_t)BN_num_bytes(a)))
373 if (buf_len < (i = (size_t)BN_num_bytes(b)))
375 if (buf_len < (i = (size_t)BN_num_bytes(gen)))
377 if (buf_len < (i = (size_t)BN_num_bytes(order)))
379 if (buf_len < (i = (size_t)BN_num_bytes(cofactor)))
382 if ((seed = EC_GROUP_get0_seed(x)) != NULL)
383 seed_len = EC_GROUP_get_seed_len(x);
386 if ((buffer = OPENSSL_malloc(buf_len)) == NULL) {
387 reason = ERR_R_MALLOC_FAILURE;
391 if (!BIO_indent(bp, off, 128))
394 /* print the 'short name' of the field type */
395 if (BIO_printf(bp, "Field Type: %s\n", OBJ_nid2sn(tmp_nid))
400 /* print the 'short name' of the base type OID */
401 int basis_type = EC_GROUP_get_basis_type(x);
405 if (!BIO_indent(bp, off, 128))
408 if (BIO_printf(bp, "Basis Type: %s\n",
409 OBJ_nid2sn(basis_type)) <= 0)
412 /* print the polynomial */
413 if ((p != NULL) && !print(bp, "Polynomial:", p, buffer, off))
416 if ((p != NULL) && !print(bp, "Prime:", p, buffer, off))
419 if ((a != NULL) && !print(bp, "A: ", a, buffer, off))
421 if ((b != NULL) && !print(bp, "B: ", b, buffer, off))
423 if (form == POINT_CONVERSION_COMPRESSED) {
424 if ((gen != NULL) && !print(bp, gen_compressed, gen, buffer, off))
426 } else if (form == POINT_CONVERSION_UNCOMPRESSED) {
427 if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
430 } else { /* form == POINT_CONVERSION_HYBRID */
432 if ((gen != NULL) && !print(bp, gen_hybrid, gen, buffer, off))
435 if ((order != NULL) && !print(bp, "Order: ", order, buffer, off))
437 if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor,
440 if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
446 ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
462 OPENSSL_free(buffer);
466 int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
468 unsigned char *buffer = NULL;
469 size_t buf_len = 0, i;
470 int ret = 0, reason = ERR_R_BIO_LIB;
471 BIGNUM *pub_key = NULL, *order = NULL;
473 const EC_GROUP *group;
474 const EC_POINT *public_key;
475 const BIGNUM *priv_key;
477 if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL) {
478 reason = ERR_R_PASSED_NULL_PARAMETER;
482 public_key = EC_KEY_get0_public_key(x);
483 if ((pub_key = EC_POINT_point2bn(group, public_key,
484 EC_KEY_get_conv_form(x), NULL,
486 reason = ERR_R_EC_LIB;
490 buf_len = (size_t)BN_num_bytes(pub_key);
491 priv_key = EC_KEY_get0_private_key(x);
492 if (priv_key != NULL) {
493 if ((i = (size_t)BN_num_bytes(priv_key)) > buf_len)
498 if ((buffer = OPENSSL_malloc(buf_len)) == NULL) {
499 reason = ERR_R_MALLOC_FAILURE;
503 if (priv_key != NULL) {
504 if (!BIO_indent(bp, off, 128))
506 if ((order = BN_new()) == NULL)
508 if (!EC_GROUP_get_order(group, order, NULL))
510 if (BIO_printf(bp, "Private-Key: (%d bit)\n",
511 BN_num_bits(order)) <= 0)
515 if ((priv_key != NULL) && !print(bp, "priv:", priv_key, buffer, off))
517 if ((pub_key != NULL) && !print(bp, "pub: ", pub_key, buffer, off))
519 if (!ECPKParameters_print(bp, group, off))
524 ECerr(EC_F_EC_KEY_PRINT, reason);
532 OPENSSL_free(buffer);
535 #endif /* OPENSSL_NO_EC */
537 static int print(BIO *bp, const char *number, const BIGNUM *num,
538 unsigned char *buf, int off)
545 neg = (BN_is_negative(num)) ? "-" : "";
546 if (!BIO_indent(bp, off, 128))
548 if (BN_is_zero(num)) {
549 if (BIO_printf(bp, "%s 0\n", number) <= 0)
554 if (BN_num_bytes(num) <= BN_BYTES) {
555 if (BIO_printf(bp, "%s %s%lu (%s0x%lx)\n", number, neg,
556 (unsigned long)num->d[0], neg,
557 (unsigned long)num->d[0])
562 if (BIO_printf(bp, "%s%s", number,
563 (neg[0] == '-') ? " (Negative)" : "") <= 0)
565 n = BN_bn2bin(num, &buf[1]);
572 for (i = 0; i < n; i++) {
574 if (BIO_puts(bp, "\n") <= 0 || !BIO_indent(bp, off + 4, 128))
577 if (BIO_printf(bp, "%02x%s", buf[i], ((i + 1) == n) ? "" : ":")
581 if (BIO_write(bp, "\n", 1) <= 0)
587 #ifndef OPENSSL_NO_EC
588 static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
599 memset(str, ' ', off);
600 if (BIO_write(fp, str, off) <= 0)
604 if (BIO_printf(fp, "%s", name) <= 0)
607 for (i = 0; i < len; i++) {
610 memset(&(str[1]), ' ', off + 4);
611 if (BIO_write(fp, str, off + 1 + 4) <= 0)
614 if (BIO_printf(fp, "%02x%s", buf[i], ((i + 1) == len) ? "" : ":") <=
618 if (BIO_write(fp, "\n", 1) <= 0)
625 #ifndef OPENSSL_NO_DH
626 # ifndef OPENSSL_NO_FP_API
627 int DHparams_print_fp(FILE *fp, const DH *x)
632 if ((b = BIO_new(BIO_s_file())) == NULL) {
633 DHerr(DH_F_DHPARAMS_PRINT_FP, ERR_R_BUF_LIB);
636 BIO_set_fp(b, fp, BIO_NOCLOSE);
637 ret = DHparams_print(b, x);
643 int DHparams_print(BIO *bp, const DH *x)
645 unsigned char *m = NULL;
646 int reason = ERR_R_BUF_LIB, ret = 0;
647 size_t buf_len = 0, i;
650 buf_len = (size_t)BN_num_bytes(x->p);
652 reason = ERR_R_PASSED_NULL_PARAMETER;
656 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
658 m = (unsigned char *)OPENSSL_malloc(buf_len + 10);
660 reason = ERR_R_MALLOC_FAILURE;
664 if (BIO_printf(bp, "Diffie-Hellman-Parameters: (%d bit)\n",
665 BN_num_bits(x->p)) <= 0)
667 if (!print(bp, "prime:", x->p, m, 4))
669 if (!print(bp, "generator:", x->g, m, 4))
671 if (x->length != 0) {
672 if (BIO_printf(bp, " recommended-private-length: %d bits\n",
673 (int)x->length) <= 0)
679 DHerr(DH_F_DHPARAMS_PRINT, reason);
687 #ifndef OPENSSL_NO_DSA
688 # ifndef OPENSSL_NO_FP_API
689 int DSAparams_print_fp(FILE *fp, const DSA *x)
694 if ((b = BIO_new(BIO_s_file())) == NULL) {
695 DSAerr(DSA_F_DSAPARAMS_PRINT_FP, ERR_R_BUF_LIB);
698 BIO_set_fp(b, fp, BIO_NOCLOSE);
699 ret = DSAparams_print(b, x);
705 int DSAparams_print(BIO *bp, const DSA *x)
707 unsigned char *m = NULL;
709 size_t buf_len = 0, i;
712 buf_len = (size_t)BN_num_bytes(x->p);
714 DSAerr(DSA_F_DSAPARAMS_PRINT, DSA_R_MISSING_PARAMETERS);
718 if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
721 if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
723 m = (unsigned char *)OPENSSL_malloc(buf_len + 10);
725 DSAerr(DSA_F_DSAPARAMS_PRINT, ERR_R_MALLOC_FAILURE);
729 if (BIO_printf(bp, "DSA-Parameters: (%d bit)\n", BN_num_bits(x->p)) <= 0)
731 if (!print(bp, "p:", x->p, m, 4))
733 if ((x->q != NULL) && !print(bp, "q:", x->q, m, 4))
735 if ((x->g != NULL) && !print(bp, "g:", x->g, m, 4))
744 #endif /* !OPENSSL_NO_DSA */
746 #ifndef OPENSSL_NO_EC
747 # ifndef OPENSSL_NO_FP_API
748 int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
753 if ((b = BIO_new(BIO_s_file())) == NULL) {
754 ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
757 BIO_set_fp(b, fp, BIO_NOCLOSE);
758 ret = ECParameters_print(b, x);
764 int ECParameters_print(BIO *bp, const EC_KEY *x)
766 int reason = ERR_R_EC_LIB, ret = 0;
767 BIGNUM *order = NULL;
768 const EC_GROUP *group;
770 if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL) {
771 reason = ERR_R_PASSED_NULL_PARAMETER;;
775 if ((order = BN_new()) == NULL) {
776 reason = ERR_R_MALLOC_FAILURE;
780 if (!EC_GROUP_get_order(group, order, NULL)) {
781 reason = ERR_R_EC_LIB;
785 if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n",
786 BN_num_bits(order)) <= 0)
788 if (!ECPKParameters_print(bp, group, 4))
794 ECerr(EC_F_ECPARAMETERS_PRINT, reason);