summaryrefslogtreecommitdiffstats
path: root/crypto/pem/pem_all.c
blob: 8d5b25156c4e4ff5dabd943ba265d4a784571af9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
/*
 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/*
 * DSA low level APIs are deprecated for public use, but still ok for
 * internal use.
 */
#include "internal/deprecated.h"

#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/bio.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs7.h>
#include <openssl/pem.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
#include <openssl/dh.h>
#include "pem_local.h"

#ifndef OPENSSL_NO_RSA
static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
#endif
#ifndef OPENSSL_NO_DSA
static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
#endif

#ifndef OPENSSL_NO_EC
static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey);
#endif

IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)

IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
IMPLEMENT_PEM_rw(X509_PUBKEY, X509_PUBKEY, PEM_STRING_PUBLIC, X509_PUBKEY)
IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)

IMPLEMENT_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE,
                 PEM_STRING_X509, NETSCAPE_CERT_SEQUENCE)
#ifndef OPENSSL_NO_RSA
/*
 * We treat RSA or DSA private keys as a special case. For private keys we
 * read in an EVP_PKEY structure with PEM_read_bio_PrivateKey() and extract
 * the relevant private key: this means can handle "traditional" and PKCS#8
 * formats transparently.
 */
static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
{
    RSA *rtmp;
    if (!key)
        return NULL;
    rtmp = EVP_PKEY_get1_RSA(key);
    EVP_PKEY_free(key);
    if (!rtmp)
        return NULL;
    if (rsa) {
        RSA_free(*rsa);
        *rsa = rtmp;
    }
    return rtmp;
}

RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
                                void *u)
{
    EVP_PKEY *pktmp;
    pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
    return pkey_get_rsa(pktmp, rsa);
}

# ifndef OPENSSL_NO_STDIO

RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb, void *u)
{
    EVP_PKEY *pktmp;
    pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
    return pkey_get_rsa(pktmp, rsa);
}

# endif

IMPLEMENT_PEM_write_cb(RSAPrivateKey, RSA, PEM_STRING_RSA, RSAPrivateKey)
IMPLEMENT_PEM_rw(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC, RSAPublicKey)
IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA, PEM_STRING_PUBLIC, RSA_PUBKEY)
#endif
#ifndef OPENSSL_NO_DSA
static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
{
    DSA *dtmp;
    if (!key)
        return NULL;
    dtmp = EVP_PKEY_get1_DSA(key);
    EVP_PKEY_free(key);
    if (!dtmp)
        return NULL;
    if (dsa) {
        DSA_free(*dsa);
        *dsa = dtmp;
    }
    return dtmp;
}

DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
                                void *u)
{
    EVP_PKEY *pktmp;
    pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
    return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
}

IMPLEMENT_PEM_write_cb(DSAPrivateKey, DSA, PEM_STRING_DSA, DSAPrivateKey)
IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
# ifndef OPENSSL_NO_STDIO
DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb, void *u)
{
    EVP_PKEY *pktmp;
    pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
    return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
}

# endif

IMPLEMENT_PEM_rw(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
#endif
#ifndef OPENSSL_NO_EC
static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey)
{
    EC_KEY *dtmp;
    if (!key)
        return NULL;
    dtmp = EVP_PKEY_get1_EC_KEY(key);
    EVP_PKEY_free(key);
    if (!dtmp)
        return NULL;
    if (eckey) {
        EC_KEY_free(*eckey);
        *eckey = dtmp;
    }
    return dtmp;
}

EC_KEY *PEM_read_bio_ECPrivateKey(BIO *bp, EC_KEY **key, pem_password_cb *cb,
                                  void *u)
{
    EVP_PKEY *pktmp;
    pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
    return pkey_get_eckey(pktmp, key); /* will free pktmp */
}

IMPLEMENT_PEM_rw(ECPKParameters, EC_GROUP, PEM_STRING_ECPARAMETERS,
                 ECPKParameters)


IMPLEMENT_PEM_write_cb(ECPrivateKey, EC_KEY, PEM_STRING_ECPRIVATEKEY,
                       ECPrivateKey)
IMPLEMENT_PEM_rw(EC_PUBKEY, EC_KEY, PEM_STRING_PUBLIC, EC_PUBKEY)
# ifndef OPENSSL_NO_STDIO
EC_KEY *PEM_read_ECPrivateKey(FILE *fp, EC_KEY **eckey, pem_password_cb *cb,
                              void *u)
{
    EVP_PKEY *pktmp;
    pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
    return pkey_get_eckey(pktmp, eckey); /* will free pktmp */
}

# endif

#endif

#ifndef OPENSSL_NO_DH

IMPLEMENT_PEM_write(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
IMPLEMENT_PEM_write(DHxparams, DH, PEM_STRING_DHXPARAMS, DHxparams)

/* Transparently read in PKCS#3 or X9.42 DH parameters */

DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
{
    char *nm = NULL;
    const unsigned char *p = NULL;
    unsigned char *data = NULL;
    long len;
    DH *ret = NULL;

    if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_DHPARAMS, bp, cb, u))
        return NULL;
    p = data;

    if (strcmp(nm, PEM_STRING_DHXPARAMS) == 0)
        ret = d2i_DHxparams(x, &p, len);
    else
        ret = d2i_DHparams(x, &p, len);

    if (ret == NULL)
        ERR_raise(ERR_LIB_PEM, ERR_R_ASN1_LIB);
    OPENSSL_free(nm);
    OPENSSL_free(data);
    return ret;
}

# ifndef OPENSSL_NO_STDIO
DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
{
    BIO *b;
    DH *ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        ERR_raise(ERR_LIB_PEM, ERR_R_BUF_LIB);
        return 0;
    }
    BIO_set_fp(b, fp, BIO_NOCLOSE);
    ret = PEM_read_bio_DHparams(b, x, cb, u);
    BIO_free(b);
    return ret;
}
# endif

#endif
IMPLEMENT_PEM_provided_write(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)