1 /* crypto/rsa/rsa_ameth.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) 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 <openssl/bn.h>
65 #ifndef OPENSSL_NO_CMS
66 #include <openssl/cms.h>
68 #include "asn1_locl.h"
70 static int rsa_pub_encode(X509_PUBKEY
*pk
, const EVP_PKEY
*pkey
)
72 unsigned char *penc
= NULL
;
74 penclen
= i2d_RSAPublicKey(pkey
->pkey
.rsa
, &penc
);
77 if (X509_PUBKEY_set0_param(pk
, OBJ_nid2obj(EVP_PKEY_RSA
),
78 V_ASN1_NULL
, NULL
, penc
, penclen
))
85 static int rsa_pub_decode(EVP_PKEY
*pkey
, X509_PUBKEY
*pubkey
)
87 const unsigned char *p
;
90 if (!X509_PUBKEY_get0_param(NULL
, &p
, &pklen
, NULL
, pubkey
))
92 if (!(rsa
= d2i_RSAPublicKey(NULL
, &p
, pklen
)))
94 RSAerr(RSA_F_RSA_PUB_DECODE
, ERR_R_RSA_LIB
);
97 EVP_PKEY_assign_RSA (pkey
, rsa
);
101 static int rsa_pub_cmp(const EVP_PKEY
*a
, const EVP_PKEY
*b
)
103 if (BN_cmp(b
->pkey
.rsa
->n
,a
->pkey
.rsa
->n
) != 0
104 || BN_cmp(b
->pkey
.rsa
->e
,a
->pkey
.rsa
->e
) != 0)
109 static int old_rsa_priv_decode(EVP_PKEY
*pkey
,
110 const unsigned char **pder
, int derlen
)
113 if (!(rsa
= d2i_RSAPrivateKey (NULL
, pder
, derlen
)))
115 RSAerr(RSA_F_OLD_RSA_PRIV_DECODE
, ERR_R_RSA_LIB
);
118 EVP_PKEY_assign_RSA(pkey
, rsa
);
122 static int old_rsa_priv_encode(const EVP_PKEY
*pkey
, unsigned char **pder
)
124 return i2d_RSAPrivateKey(pkey
->pkey
.rsa
, pder
);
127 static int rsa_priv_encode(PKCS8_PRIV_KEY_INFO
*p8
, const EVP_PKEY
*pkey
)
129 unsigned char *rk
= NULL
;
131 rklen
= i2d_RSAPrivateKey(pkey
->pkey
.rsa
, &rk
);
135 RSAerr(RSA_F_RSA_PRIV_ENCODE
,ERR_R_MALLOC_FAILURE
);
139 if (!PKCS8_pkey_set0(p8
, OBJ_nid2obj(NID_rsaEncryption
), 0,
140 V_ASN1_NULL
, NULL
, rk
, rklen
))
142 RSAerr(RSA_F_RSA_PRIV_ENCODE
,ERR_R_MALLOC_FAILURE
);
149 static int rsa_priv_decode(EVP_PKEY
*pkey
, PKCS8_PRIV_KEY_INFO
*p8
)
151 const unsigned char *p
;
153 if (!PKCS8_pkey_get0(NULL
, &p
, &pklen
, NULL
, p8
))
155 return old_rsa_priv_decode(pkey
, &p
, pklen
);
158 static int int_rsa_size(const EVP_PKEY
*pkey
)
160 return RSA_size(pkey
->pkey
.rsa
);
163 static int rsa_bits(const EVP_PKEY
*pkey
)
165 return BN_num_bits(pkey
->pkey
.rsa
->n
);
168 static void int_rsa_free(EVP_PKEY
*pkey
)
170 RSA_free(pkey
->pkey
.rsa
);
174 static void update_buflen(const BIGNUM
*b
, size_t *pbuflen
)
179 if (*pbuflen
< (i
= (size_t)BN_num_bytes(b
)))
183 static int do_rsa_print(BIO
*bp
, const RSA
*x
, int off
, int priv
)
187 unsigned char *m
=NULL
;
188 int ret
=0, mod_len
= 0;
191 update_buflen(x
->n
, &buf_len
);
192 update_buflen(x
->e
, &buf_len
);
196 update_buflen(x
->d
, &buf_len
);
197 update_buflen(x
->p
, &buf_len
);
198 update_buflen(x
->q
, &buf_len
);
199 update_buflen(x
->dmp1
, &buf_len
);
200 update_buflen(x
->dmq1
, &buf_len
);
201 update_buflen(x
->iqmp
, &buf_len
);
204 m
=(unsigned char *)OPENSSL_malloc(buf_len
+10);
207 RSAerr(RSA_F_DO_RSA_PRINT
,ERR_R_MALLOC_FAILURE
);
212 mod_len
= BN_num_bits(x
->n
);
214 if(!BIO_indent(bp
,off
,128))
219 if (BIO_printf(bp
,"Private-Key: (%d bit)\n", mod_len
)
222 s
= "publicExponent:";
226 if (BIO_printf(bp
,"Public-Key: (%d bit)\n", mod_len
)
231 if (!ASN1_bn_print(bp
,str
,x
->n
,m
,off
)) goto err
;
232 if (!ASN1_bn_print(bp
,s
,x
->e
,m
,off
))
236 if (!ASN1_bn_print(bp
,"privateExponent:",x
->d
,m
,off
))
238 if (!ASN1_bn_print(bp
,"prime1:",x
->p
,m
,off
))
240 if (!ASN1_bn_print(bp
,"prime2:",x
->q
,m
,off
))
242 if (!ASN1_bn_print(bp
,"exponent1:",x
->dmp1
,m
,off
))
244 if (!ASN1_bn_print(bp
,"exponent2:",x
->dmq1
,m
,off
))
246 if (!ASN1_bn_print(bp
,"coefficient:",x
->iqmp
,m
,off
))
251 if (m
!= NULL
) OPENSSL_free(m
);
255 static int rsa_pub_print(BIO
*bp
, const EVP_PKEY
*pkey
, int indent
,
258 return do_rsa_print(bp
, pkey
->pkey
.rsa
, indent
, 0);
262 static int rsa_priv_print(BIO
*bp
, const EVP_PKEY
*pkey
, int indent
,
265 return do_rsa_print(bp
, pkey
->pkey
.rsa
, indent
, 1);
268 static int rsa_pss_param_print(BIO
*bp
, RSASSA_PSS_PARAMS
*pss
, int indent
)
271 X509_ALGOR
*maskHash
= NULL
;
274 if (BIO_puts(bp
, " (INVALID PSS PARAMETERS)\n") <= 0)
277 if (BIO_puts(bp
, "\n") <= 0)
279 if (!BIO_indent(bp
, indent
, 128))
281 if (BIO_puts(bp
, "Hash Algorithm: ") <= 0)
284 if (pss
->hashAlgorithm
)
286 if (i2a_ASN1_OBJECT(bp
, pss
->hashAlgorithm
->algorithm
) <= 0)
289 else if (BIO_puts(bp
, "sha1 (default)") <= 0)
292 if (BIO_puts(bp
, "\n") <= 0)
295 if (!BIO_indent(bp
, indent
, 128))
298 if (BIO_puts(bp
, "Mask Algorithm: ") <= 0)
300 if (pss
->maskGenAlgorithm
)
302 ASN1_TYPE
*param
= pss
->maskGenAlgorithm
->parameter
;
303 if (param
->type
== V_ASN1_SEQUENCE
)
305 const unsigned char *p
= param
->value
.sequence
->data
;
306 int plen
= param
->value
.sequence
->length
;
307 maskHash
= d2i_X509_ALGOR(NULL
, &p
, plen
);
309 if (i2a_ASN1_OBJECT(bp
, pss
->maskGenAlgorithm
->algorithm
) <= 0)
311 if (BIO_puts(bp
, " with ") <= 0)
313 if (i2a_ASN1_OBJECT(bp
, maskHash
->algorithm
) <= 0)
316 else if (BIO_puts(bp
, "mgf1 with sha1 (default)") <= 0)
320 if (!BIO_indent(bp
, indent
, 128))
322 if (BIO_puts(bp
, "Salt Length: ") <= 0)
326 if (i2a_ASN1_INTEGER(bp
, pss
->saltLength
) <= 0)
329 else if (BIO_puts(bp
, "20 (default)") <= 0)
333 if (!BIO_indent(bp
, indent
, 128))
335 if (BIO_puts(bp
, "Trailer Field: ") <= 0)
337 if (pss
->trailerField
)
339 if (i2a_ASN1_INTEGER(bp
, pss
->trailerField
) <= 0)
342 else if (BIO_puts(bp
, "0xbc (default)") <= 0)
350 X509_ALGOR_free(maskHash
);
351 RSASSA_PSS_PARAMS_free(pss
);
356 static int rsa_sig_print(BIO
*bp
, const X509_ALGOR
*sigalg
,
357 const ASN1_STRING
*sig
,
358 int indent
, ASN1_PCTX
*pctx
)
360 if (OBJ_obj2nid(sigalg
->algorithm
) == NID_rsassaPss
)
362 RSASSA_PSS_PARAMS
*pss
= NULL
;
363 ASN1_TYPE
*param
= sigalg
->parameter
;
364 if (param
&& param
->type
== V_ASN1_SEQUENCE
)
366 const unsigned char *p
= param
->value
.sequence
->data
;
367 int plen
= param
->value
.sequence
->length
;
368 pss
= d2i_RSASSA_PSS_PARAMS(NULL
, &p
, plen
);
370 if (!rsa_pss_param_print(bp
, pss
, indent
))
374 return X509_signature_dump(bp
, sig
, indent
);
377 static int rsa_pkey_ctrl(EVP_PKEY
*pkey
, int op
, long arg1
, void *arg2
)
379 X509_ALGOR
*alg
= NULL
;
383 case ASN1_PKEY_CTRL_PKCS7_SIGN
:
385 PKCS7_SIGNER_INFO_get0_algs(arg2
, NULL
, NULL
, &alg
);
388 case ASN1_PKEY_CTRL_PKCS7_ENCRYPT
:
390 PKCS7_RECIP_INFO_get0_alg(arg2
, &alg
);
392 #ifndef OPENSSL_NO_CMS
393 case ASN1_PKEY_CTRL_CMS_SIGN
:
395 CMS_SignerInfo_get0_algs(arg2
, NULL
, NULL
, NULL
, &alg
);
398 case ASN1_PKEY_CTRL_CMS_ENVELOPE
:
400 CMS_RecipientInfo_ktri_get0_algs(arg2
, NULL
, NULL
, &alg
);
404 case ASN1_PKEY_CTRL_DEFAULT_MD_NID
:
405 *(int *)arg2
= NID_sha1
;
414 X509_ALGOR_set0(alg
, OBJ_nid2obj(NID_rsaEncryption
),
422 const EVP_PKEY_ASN1_METHOD rsa_asn1_meths
[] =
427 ASN1_PKEY_SIGPARAM_NULL
,
430 "OpenSSL RSA method",