1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
57 #include <openssl/pem.h>
61 #include <openssl/buf.h>
62 #include <openssl/dh.h>
63 #include <openssl/err.h>
64 #include <openssl/evp.h>
65 #include <openssl/mem.h>
66 #include <openssl/obj.h>
67 #include <openssl/pkcs8.h>
68 #include <openssl/rand.h>
69 #include <openssl/x509.h>
71 #include "../evp/internal.h"
74 int pem_check_suffix(const char *pem_str, const char *suffix);
76 EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
79 const unsigned char *p=NULL;
80 unsigned char *data=NULL;
85 if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u))
89 if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
90 PKCS8_PRIV_KEY_INFO *p8inf;
91 p8inf=d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len);
92 if(!p8inf) goto p8err;
93 ret = EVP_PKCS82PKEY(p8inf);
95 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
98 PKCS8_PRIV_KEY_INFO_free(p8inf);
99 } else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
100 PKCS8_PRIV_KEY_INFO *p8inf;
103 char psbuf[PEM_BUFSIZE];
104 p8 = d2i_X509_SIG(NULL, &p, len);
108 if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
110 OPENSSL_PUT_ERROR(PEM, PEM_read_bio_PrivateKey, PEM_R_BAD_PASSWORD_READ);
114 p8inf = PKCS8_decrypt(p8, psbuf, klen);
116 if(!p8inf) goto p8err;
117 ret = EVP_PKCS82PKEY(p8inf);
119 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
122 PKCS8_PRIV_KEY_INFO_free(p8inf);
123 } else if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0)
125 const EVP_PKEY_ASN1_METHOD *ameth;
126 ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen);
127 if (!ameth || !ameth->old_priv_decode)
129 ret=d2i_PrivateKey(ameth->pkey_id,x,&p,len);
133 OPENSSL_PUT_ERROR(PEM, PEM_read_bio_PrivateKey, ERR_R_ASN1_LIB);
137 OPENSSL_cleanse(data, len);
142 int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
143 unsigned char *kstr, int klen,
144 pem_password_cb *cb, void *u)
147 if (!x->ameth || x->ameth->priv_encode)
148 return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
152 BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
153 return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
154 pem_str,bp,x,enc,kstr,klen,cb,u);
157 static int public_key_type_from_str(const char *name, size_t len) {
158 if (len == 3 && memcmp(name, "RSA", 3) == 0) {
160 } else if (len == 2 && memcmp(name, "DH", 2) == 0) {
162 } else if (len == 2 && memcmp(name, "EC", 2) == 0) {
168 static int set_pkey_type_from_str(EVP_PKEY *pkey, const char *name, size_t len) {
169 int nid = public_key_type_from_str(name, len);
170 if (nid == NID_undef) {
173 return EVP_PKEY_set_type(pkey, nid);
176 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
179 const unsigned char *p=NULL;
180 unsigned char *data=NULL;
185 if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_PARAMETERS,
190 if ((slen = pem_check_suffix(nm, "PARAMETERS")) > 0)
192 ret = EVP_PKEY_new();
195 if (!set_pkey_type_from_str(ret, nm, slen)
196 || !ret->ameth->param_decode
197 || !ret->ameth->param_decode(ret, &p, len))
205 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
211 OPENSSL_PUT_ERROR(PEM, PEM_read_bio_Parameters, ERR_R_ASN1_LIB);
217 int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x)
220 if (!x->ameth || !x->ameth->param_encode)
223 BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
224 return PEM_ASN1_write_bio(
225 (i2d_of_void *)x->ameth->param_encode,
226 pem_str,bp,x,NULL,NULL,0,0,NULL);
229 #ifndef OPENSSL_NO_FP_API
230 EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
235 if ((b=BIO_new(BIO_s_file())) == NULL)
237 OPENSSL_PUT_ERROR(PEM, PEM_read_PrivateKey, ERR_R_BUF_LIB);
240 BIO_set_fp(b,fp,BIO_NOCLOSE);
241 ret=PEM_read_bio_PrivateKey(b,x,cb,u);
246 int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
247 unsigned char *kstr, int klen,
248 pem_password_cb *cb, void *u)
253 if ((b=BIO_new_fp(fp, BIO_NOCLOSE)) == NULL)
255 OPENSSL_PUT_ERROR(PEM, PEM_write_PrivateKey, ERR_R_BUF_LIB);
258 ret=PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
266 /* Transparently read in PKCS#3 or X9.42 DH parameters */
268 DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
271 const unsigned char *p=NULL;
272 unsigned char *data=NULL;
276 if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_DHPARAMS,
281 /* TODO(fork): remove? */
282 /*if (!strcmp(nm, PEM_STRING_DHXPARAMS))
283 ret = d2i_DHxparams(x, &p, len);
285 ret = d2i_DHparams(x, &p, len);
288 OPENSSL_PUT_ERROR(PEM, PEM_read_bio_DHparams, ERR_R_ASN1_LIB);
294 #ifndef OPENSSL_NO_FP_API
295 DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
300 if ((b=BIO_new(BIO_s_file())) == NULL)
302 OPENSSL_PUT_ERROR(PEM, PEM_read_DHparams, ERR_R_BUF_LIB);
305 BIO_set_fp(b,fp,BIO_NOCLOSE);
306 ret=PEM_read_bio_DHparams(b,x,cb,u);