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 (PKCS8_PRIV_KEY_INFO *p8)
72 ASN1_INTEGER *dsapriv;
82 p = p8->pkey->value.octet_string->data;
83 pkeylen = p8->pkey->value.octet_string->length;
87 p = p8->pkey->value.sequence->data;
88 pkeylen = p8->pkey->value.sequence->length;
92 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
96 if (!(pkey = EVP_PKEY_new())) {
97 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
101 switch (OBJ_obj2nid(a->algorithm))
103 case NID_rsaEncryption:
104 if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
105 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
108 EVP_PKEY_assign_RSA (pkey, rsa);
112 /* PKCS#8 DSA is weird: you just get a private key integer
113 * and parameters in the AlgorithmIdentifier the pubkey must
117 /* Check for broken Netscape Database DSA PKCS#8, UGH! */
118 if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
119 if(!(ndsa = ASN1_seq_unpack(p, pkeylen,
120 (char *(*)())d2i_ASN1_INTEGER,
121 ASN1_STRING_free))) {
122 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
125 if(sk_num(ndsa) != 2 ) {
126 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
127 sk_pop_free(ndsa, ASN1_STRING_free);
130 dsapriv = (ASN1_INTEGER *) sk_pop(ndsa);
131 sk_pop_free(ndsa, ASN1_STRING_free);
132 } else if (!(dsapriv=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
133 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
136 /* Retrieve parameters */
137 if (a->parameter->type != V_ASN1_SEQUENCE) {
138 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_NO_DSA_PARAMETERS);
141 p = a->parameter->value.sequence->data;
142 plen = a->parameter->value.sequence->length;
143 if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
144 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
147 /* We have parameters now set private key */
148 if (!(dsa->priv_key = ASN1_INTEGER_to_BN(dsapriv, NULL))) {
149 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
153 /* Calculate public key (ouch!) */
154 if (!(dsa->pub_key = BN_new())) {
155 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
159 if (!(ctx = BN_CTX_new())) {
160 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
165 if (!BN_mod_exp(dsa->pub_key, dsa->g,
166 dsa->priv_key, dsa->p, ctx)) {
168 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
174 EVP_PKEY_assign_DSA (pkey, dsa);
179 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
180 if (!a->algorithm) strcpy (obj_tmp, "NULL");
181 else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
182 ERR_add_error_data(2, "TYPE=", obj_tmp);
183 EVP_PKEY_free (pkey);
189 /* Turn a private key into a PKCS8 structure */
191 PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
193 PKCS8_PRIV_KEY_INFO *p8;
195 unsigned char *p, *q;
197 if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
198 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
201 ASN1_INTEGER_set (p8->version, 0);
202 if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
203 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
204 PKCS8_PRIV_KEY_INFO_free (p8);
207 switch (EVP_PKEY_type(pkey->type)) {
210 p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
211 p8->pkeyalg->parameter->type = V_ASN1_NULL;
212 if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
213 &p8->pkey->value.octet_string)) {
214 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
215 PKCS8_PRIV_KEY_INFO_free (p8);
221 p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
223 /* get paramaters and place in AlgorithmIdentifier */
224 len = i2d_DSAparams (pkey->pkey.dsa, NULL);
225 if (!(p = Malloc(len))) {
226 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
227 PKCS8_PRIV_KEY_INFO_free (p8);
231 i2d_DSAparams (pkey->pkey.dsa, &q);
232 p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
233 p8->pkeyalg->parameter->value.sequence = ASN1_STRING_new();
234 ASN1_STRING_set(p8->pkeyalg->parameter->value.sequence, p, len);
236 /* Get private key into an integer and pack */
237 if (!(dpkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
238 EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
239 PKCS8_PRIV_KEY_INFO_free (p8);
243 if (!ASN1_pack_string((char *)dpkey, i2d_ASN1_INTEGER,
244 &p8->pkey->value.octet_string)) {
245 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
246 ASN1_INTEGER_free (dpkey);
247 PKCS8_PRIV_KEY_INFO_free (p8);
250 ASN1_INTEGER_free (dpkey);
254 EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
255 PKCS8_PRIV_KEY_INFO_free (p8);
258 p8->pkey->type = V_ASN1_OCTET_STRING;
259 RAND_seed (p8->pkey->value.octet_string->data,
260 p8->pkey->value.octet_string->length);
264 PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
269 p8->broken = PKCS8_OK;
274 p8->broken = PKCS8_NO_OCTET;
275 p8->pkey->type = V_ASN1_SEQUENCE;
280 EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);