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).
62 #include <openssl/x509.h>
63 #include <openssl/rand.h>
65 /* Extract a private key from a PKCS8 structure */
67 EVP_PKEY *EVP_PKCS82PKEY (PKCS8_PRIV_KEY_INFO *p8)
75 ASN1_INTEGER *dsapriv;
87 p = p8->pkey->value.octet_string->data;
88 pkeylen = p8->pkey->value.octet_string->length;
92 p = p8->pkey->value.sequence->data;
93 pkeylen = p8->pkey->value.sequence->length;
97 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);
101 if (!(pkey = EVP_PKEY_new())) {
102 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
106 switch (OBJ_obj2nid(a->algorithm))
109 case NID_rsaEncryption:
110 if (!(rsa = d2i_RSAPrivateKey (NULL, &p, pkeylen))) {
111 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
114 EVP_PKEY_assign_RSA (pkey, rsa);
119 /* PKCS#8 DSA is weird: you just get a private key integer
120 * and parameters in the AlgorithmIdentifier the pubkey must
124 /* Check for broken Netscape Database DSA PKCS#8, UGH! */
125 if(*p == (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED)) {
126 if(!(ndsa = ASN1_seq_unpack(p, pkeylen,
127 (char *(*)())d2i_ASN1_INTEGER,
128 ASN1_STRING_free))) {
129 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
132 if(sk_num(ndsa) != 2 ) {
133 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
134 sk_pop_free(ndsa, ASN1_STRING_free);
137 dsapriv = (ASN1_INTEGER *) sk_pop(ndsa);
138 sk_pop_free(ndsa, ASN1_STRING_free);
139 } else if (!(dsapriv=d2i_ASN1_INTEGER (NULL, &p, pkeylen))) {
140 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
143 /* Retrieve parameters */
144 if (a->parameter->type != V_ASN1_SEQUENCE) {
145 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_NO_DSA_PARAMETERS);
148 p = a->parameter->value.sequence->data;
149 plen = a->parameter->value.sequence->length;
150 if (!(dsa = d2i_DSAparams (NULL, &p, plen))) {
151 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_DECODE_ERROR);
154 /* We have parameters now set private key */
155 if (!(dsa->priv_key = ASN1_INTEGER_to_BN(dsapriv, NULL))) {
156 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_DECODE_ERROR);
160 /* Calculate public key (ouch!) */
161 if (!(dsa->pub_key = BN_new())) {
162 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
166 if (!(ctx = BN_CTX_new())) {
167 EVPerr(EVP_F_EVP_PKCS82PKEY,ERR_R_MALLOC_FAILURE);
172 if (!BN_mod_exp(dsa->pub_key, dsa->g,
173 dsa->priv_key, dsa->p, ctx)) {
175 EVPerr(EVP_F_EVP_PKCS82PKEY,EVP_R_BN_PUBKEY_ERROR);
181 EVP_PKEY_assign_DSA (pkey, dsa);
186 EVPerr(EVP_F_EVP_PKCS82PKEY, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
187 if (!a->algorithm) strcpy (obj_tmp, "NULL");
188 else i2t_ASN1_OBJECT(obj_tmp, 80, a->algorithm);
189 ERR_add_error_data(2, "TYPE=", obj_tmp);
190 EVP_PKEY_free (pkey);
196 /* Turn a private key into a PKCS8 structure */
198 PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey)
200 PKCS8_PRIV_KEY_INFO *p8;
203 unsigned char *p, *q;
206 if (!(p8 = PKCS8_PRIV_KEY_INFO_new())) {
207 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
210 ASN1_INTEGER_set (p8->version, 0);
211 if (!(p8->pkeyalg->parameter = ASN1_TYPE_new ())) {
212 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
213 PKCS8_PRIV_KEY_INFO_free (p8);
216 switch (EVP_PKEY_type(pkey->type)) {
220 p8->pkeyalg->algorithm = OBJ_nid2obj(NID_rsaEncryption);
221 p8->pkeyalg->parameter->type = V_ASN1_NULL;
222 if (!ASN1_pack_string ((char *)pkey, i2d_PrivateKey,
223 &p8->pkey->value.octet_string)) {
224 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
225 PKCS8_PRIV_KEY_INFO_free (p8);
232 p8->pkeyalg->algorithm = OBJ_nid2obj(NID_dsa);
234 /* get paramaters and place in AlgorithmIdentifier */
235 len = i2d_DSAparams (pkey->pkey.dsa, NULL);
236 if (!(p = Malloc(len))) {
237 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
238 PKCS8_PRIV_KEY_INFO_free (p8);
242 i2d_DSAparams (pkey->pkey.dsa, &q);
243 p8->pkeyalg->parameter->type = V_ASN1_SEQUENCE;
244 p8->pkeyalg->parameter->value.sequence = ASN1_STRING_new();
245 ASN1_STRING_set(p8->pkeyalg->parameter->value.sequence, p, len);
247 /* Get private key into an integer and pack */
248 if (!(dpkey = BN_to_ASN1_INTEGER (pkey->pkey.dsa->priv_key, NULL))) {
249 EVPerr(EVP_F_EVP_PKEY2PKCS8,EVP_R_ENCODE_ERROR);
250 PKCS8_PRIV_KEY_INFO_free (p8);
254 if (!ASN1_pack_string((char *)dpkey, i2d_ASN1_INTEGER,
255 &p8->pkey->value.octet_string)) {
256 EVPerr(EVP_F_EVP_PKEY2PKCS8,ERR_R_MALLOC_FAILURE);
257 ASN1_INTEGER_free (dpkey);
258 PKCS8_PRIV_KEY_INFO_free (p8);
261 ASN1_INTEGER_free (dpkey);
265 EVPerr(EVP_F_EVP_PKEY2PKCS8, EVP_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
266 PKCS8_PRIV_KEY_INFO_free (p8);
269 p8->pkey->type = V_ASN1_OCTET_STRING;
270 RAND_seed (p8->pkey->value.octet_string->data,
271 p8->pkey->value.octet_string->length);
275 PKCS8_PRIV_KEY_INFO *PKCS8_set_broken(PKCS8_PRIV_KEY_INFO *p8, int broken)
280 p8->broken = PKCS8_OK;
285 p8->broken = PKCS8_NO_OCTET;
286 p8->pkey->type = V_ASN1_SEQUENCE;
291 EVPerr(EVP_F_EVP_PKCS8_SET_BROKEN,EVP_R_PKCS8_UNKNOWN_BROKEN_TYPE);