1 /* crypto/rsa/rsa_ameth.c */
2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
61 #include <openssl/asn1t.h>
62 #include <openssl/x509.h>
63 #include <openssl/rsa.h>
64 #include "asn1_locl.h"
66 static int rsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
68 unsigned char *penc = NULL;
70 penclen = i2d_RSAPublicKey(pkey->pkey.rsa, &penc);
73 if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(EVP_PKEY_RSA),
74 V_ASN1_NULL, NULL, penc, penclen))
81 static int rsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
83 const unsigned char *p;
86 if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, NULL, pubkey))
88 if (!(rsa = d2i_RSAPublicKey(NULL, &p, pklen)))
90 RSAerr(RSA_F_RSA_PUB_DECODE, ERR_R_RSA_LIB);
93 EVP_PKEY_assign_RSA (pkey, rsa);
97 static int rsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
99 if (BN_cmp(b->pkey.rsa->n,a->pkey.rsa->n) != 0
100 || BN_cmp(b->pkey.rsa->e,a->pkey.rsa->e) != 0)
105 static int old_rsa_priv_decode(EVP_PKEY *pkey,
106 const unsigned char **pder, int derlen)
109 if (!(rsa = d2i_RSAPrivateKey (NULL, pder, derlen)))
111 RSAerr(RSA_F_RSA_PRIV_DECODE, ERR_R_RSA_LIB);
114 EVP_PKEY_assign_RSA(pkey, rsa);
118 static int old_rsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder)
120 return i2d_RSAPrivateKey(pkey->pkey.rsa, pder);
123 static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
125 unsigned char *rk = NULL;
127 rklen = i2d_RSAPrivateKey(pkey->pkey.rsa, &rk);
131 RSAerr(RSA_F_RSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
135 if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_rsaEncryption), 0,
136 V_ASN1_NULL, NULL, rk, rklen))
138 RSAerr(RSA_F_RSA_PRIV_ENCODE,ERR_R_MALLOC_FAILURE);
145 static int rsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
147 const unsigned char *p;
149 if (!PKCS8_pkey_get0(NULL, &p, &pklen, NULL, p8))
151 return old_rsa_priv_decode(pkey, &p, pklen);
154 static int int_rsa_size(const EVP_PKEY *pkey)
156 return RSA_size(pkey->pkey.rsa);
159 static int rsa_bits(const EVP_PKEY *pkey)
161 return BN_num_bits(pkey->pkey.rsa->n);
164 static void int_rsa_free(EVP_PKEY *pkey)
166 RSA_free(pkey->pkey.rsa);
170 static void update_buflen(const BIGNUM *b, size_t *pbuflen)
175 if (*pbuflen < (i = (size_t)BN_num_bytes(b)))
179 static int do_rsa_print(BIO *bp, const RSA *x, int off, int priv)
183 unsigned char *m=NULL;
184 int ret=0, mod_len = 0;
187 update_buflen(x->n, &buf_len);
188 update_buflen(x->e, &buf_len);
192 update_buflen(x->d, &buf_len);
193 update_buflen(x->p, &buf_len);
194 update_buflen(x->q, &buf_len);
195 update_buflen(x->dmp1, &buf_len);
196 update_buflen(x->dmq1, &buf_len);
197 update_buflen(x->iqmp, &buf_len);
200 m=(unsigned char *)OPENSSL_malloc(buf_len+10);
203 RSAerr(RSA_F_RSA_PRINT,ERR_R_MALLOC_FAILURE);
208 mod_len = BN_num_bits(x->n);
210 if(!BIO_indent(bp,off,128))
215 if (BIO_printf(bp,"Private-Key: (%d bit)\n", mod_len)
218 s = "publicExponent:";
222 if (BIO_printf(bp,"Public-Key: (%d bit)\n", mod_len)
227 if (!ASN1_bn_print(bp,str,x->n,m,off)) goto err;
228 if (!ASN1_bn_print(bp,s,x->e,m,off))
232 if (!ASN1_bn_print(bp,"privateExponent:",x->d,m,off))
234 if (!ASN1_bn_print(bp,"prime1:",x->p,m,off))
236 if (!ASN1_bn_print(bp,"prime2:",x->q,m,off))
238 if (!ASN1_bn_print(bp,"exponent1:",x->dmp1,m,off))
240 if (!ASN1_bn_print(bp,"exponent2:",x->dmq1,m,off))
242 if (!ASN1_bn_print(bp,"coefficient:",x->iqmp,m,off))
247 if (m != NULL) OPENSSL_free(m);
251 static int rsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent,
254 return do_rsa_print(bp, pkey->pkey.rsa, indent, 0);
258 static int rsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent,
261 return do_rsa_print(bp, pkey->pkey.rsa, indent, 1);
265 static int rsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
270 case ASN1_PKEY_CTRL_PKCS7_SIGN:
274 PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, NULL, &alg);
275 X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption),
280 case ASN1_PKEY_CTRL_PKCS7_ENCRYPT:
284 PKCS7_RECIP_INFO_get0_alg(arg2, &alg);
285 X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption),
290 case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
291 *(int *)arg2 = NID_sha1;
302 const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[] =
307 ASN1_PKEY_SIGPARAM_NULL,
310 "OpenSSL RSA method",