2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 1999 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).
65 /* Extract a private key from a PKCS8 structure */
67 EVP_PKEY *EVP_PKCS82PKEY (p8)
68 PKCS8_PRIV_KEY_INFO *p8;
73 ASN1_INTEGER *dsapriv;
83 p = p8->pkey->value.octet_string->data;
84 pkeylen = p8->pkey->value.octet_string->length;
88 p = p8->pkey->value.sequence->data;
89 pkeylen = p8->pkey->value.sequence->length;
93 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
97 if (!(pkey = EVP_PKEY_new())) {
98 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
102 switch (OBJ_obj2nid(a->algorithm))
104 case NID_rsaEncryption:
105 if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
106 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
109 EVP_PKEY_assign_RSA (pkey, rsa);
113 /* PKCS#8 DSA is weird: you just get a private key integer
114 * and parameters in the AlgorithmIdentifier the pubkey must
118 /* Check for broken Netscape Database DSA PKCS#8, UGH! */
119 if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
120 if(!(ndsa = ASN1_seq_unpack(p, pkeylen,
121 (char *(*)())d2i_ASN1_INTEGER,
122 ASN1_STRING_free))) {
123 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
126 if(sk_num(ndsa) != 2 ) {
127 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
128 sk_pop_free(ndsa, ASN1_STRING_free);
131 dsapriv = (ASN1_INTEGER *) sk_pop(ndsa);
132 sk_pop_free(ndsa, ASN1_STRING_free);
133 } else if (!(dsapriv=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
134 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
137 /* Retrieve parameters */
138 if (a->parameter->type != V_ASN1_SEQUENCE) {
139 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_NO_DSA_PARAMETERS);
142 p = a->parameter->value.sequence->data;
143 plen = a->parameter->value.sequence->length;
144 if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
145 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
148 /* We have parameters now set private key */
149 if (!(dsa->priv_key = ASN1_INTEGER_to_BN(dsapriv, NULL))) {
150 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
154 /* Calculate public key (ouch!) */
155 if (!(dsa->pub_key = BN_new())) {
156 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
160 if (!(ctx = BN_CTX_new())) {
161 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
166 if (!BN_mod_exp(dsa->pub_key, dsa->g,
167 dsa->priv_key, dsa->p, ctx)) {
169 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
175 EVP_PKEY_assign_DSA (pkey, dsa);
180 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
181 if (!a->algorithm) strcpy (obj_tmp, "NULL");
182 else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
183 ERR_add_error_data(2, "TYPE=", obj_tmp);
184 EVP_PKEY_free (pkey);
190 /* Turn a private key into a PKCS8 structure */
192 PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(pkey)
195 PKCS8_PRIV_KEY_INFO *p8;
197 unsigned char *p, *q;
199 if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
200 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
203 ASN1_INTEGER_set (p8->version, 0);
204 if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
205 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
206 PKCS8_PRIV_KEY_INFO_free (p8);
209 switch (EVP_PKEY_type(pkey->type)) {
212 p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
213 p8->pkeyalg->parameter->type = V_ASN1_NULL;
214 if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
215 &p8->pkey->value.octet_string)) {
216 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
217 PKCS8_PRIV_KEY_INFO_free (p8);
223 p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
225 /* get paramaters and place in AlgorithmIdentifier */
226 len = i2d_DSAparams (pkey->pkey.dsa, NULL);
227 if (!(p = Malloc(len))) {
228 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
229 PKCS8_PRIV_KEY_INFO_free (p8);
233 i2d_DSAparams (pkey->pkey.dsa, &q);
234 p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
235 p8->pkeyalg->parameter->value.sequence = ASN1_STRING_new();
236 ASN1_STRING_set(p8->pkeyalg->parameter->value.sequence, p, len);
238 /* Get private key into an integer and pack */
239 if (!(dpkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
240 EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
241 PKCS8_PRIV_KEY_INFO_free (p8);
245 if (!ASN1_pack_string((char *)dpkey, i2d_ASN1_INTEGER,
246 &p8->pkey->value.octet_string)) {
247 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
248 ASN1_INTEGER_free (dpkey);
249 PKCS8_PRIV_KEY_INFO_free (p8);
252 ASN1_INTEGER_free (dpkey);
256 EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
257 PKCS8_PRIV_KEY_INFO_free (p8);
260 p8->pkey->type = V_ASN1_OCTET_STRING;
261 RAND_seed (p8->pkey->value.octet_string->data,
262 p8->pkey->value.octet_string->length);
266 PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(p8, broken)
267 PKCS8_PRIV_KEY_INFO *p8;
273 p8->broken = PKCS8_OK;
278 p8->broken = PKCS8_NO_OCTET;
279 p8->pkey->type = V_ASN1_SEQUENCE;
284 EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);