1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <stdio.h>
11#include "internal/cryptlib.h"
12#include <openssl/bio.h>
13#include <openssl/evp.h>
14#include <openssl/x509.h>
15#include <openssl/pkcs7.h>
16#include <openssl/pem.h>
17#include <openssl/rsa.h>
18#include <openssl/dsa.h>
19#include <openssl/dh.h>
20#include "pem_local.h"
21
22#ifndef OPENSSL_NO_RSA
23static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
24#endif
25#ifndef OPENSSL_NO_DSA
26static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
27#endif
28
29#ifndef OPENSSL_NO_EC
30static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey);
31#endif
32
33IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)
34
35IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
36IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
37IMPLEMENT_PEM_rw(X509_PUBKEY, X509_PUBKEY, PEM_STRING_PUBLIC, X509_PUBKEY)
38IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)
39
40IMPLEMENT_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE,
41 PEM_STRING_X509, NETSCAPE_CERT_SEQUENCE)
42#ifndef OPENSSL_NO_RSA
43/*
44 * We treat RSA or DSA private keys as a special case. For private keys we
45 * read in an EVP_PKEY structure with PEM_read_bio_PrivateKey() and extract
46 * the relevant private key: this means can handle "traditional" and PKCS#8
47 * formats transparently.
48 */
49static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
50{
51 RSA *rtmp;
52 if (!key)
53 return NULL;
54 rtmp = EVP_PKEY_get1_RSA(key);
55 EVP_PKEY_free(key);
56 if (!rtmp)
57 return NULL;
58 if (rsa) {
59 RSA_free(*rsa);
60 *rsa = rtmp;
61 }
62 return rtmp;
63}
64
65RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
66 void *u)
67{
68 EVP_PKEY *pktmp;
69 pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
70 return pkey_get_rsa(pktmp, rsa);
71}
72
73# ifndef OPENSSL_NO_STDIO
74
75RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb, void *u)
76{
77 EVP_PKEY *pktmp;
78 pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
79 return pkey_get_rsa(pktmp, rsa);
80}
81
82# endif
83
84IMPLEMENT_PEM_write_cb(RSAPrivateKey, RSA, PEM_STRING_RSA, RSAPrivateKey)
85IMPLEMENT_PEM_rw(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC, RSAPublicKey)
86IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA, PEM_STRING_PUBLIC, RSA_PUBKEY)
87#endif
88#ifndef OPENSSL_NO_DSA
89static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
90{
91 DSA *dtmp;
92 if (!key)
93 return NULL;
94 dtmp = EVP_PKEY_get1_DSA(key);
95 EVP_PKEY_free(key);
96 if (!dtmp)
97 return NULL;
98 if (dsa) {
99 DSA_free(*dsa);
100 *dsa = dtmp;
101 }
102 return dtmp;
103}
104
105DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
106 void *u)
107{
108 EVP_PKEY *pktmp;
109 pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
110 return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
111}
112
113IMPLEMENT_PEM_write_cb(DSAPrivateKey, DSA, PEM_STRING_DSA, DSAPrivateKey)
114IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
115# ifndef OPENSSL_NO_STDIO
116DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb, void *u)
117{
118 EVP_PKEY *pktmp;
119 pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
120 return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
121}
122
123# endif
124
125IMPLEMENT_PEM_rw(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
126#endif
127#ifndef OPENSSL_NO_EC
128static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey)
129{
130 EC_KEY *dtmp;
131 if (!key)
132 return NULL;
133 dtmp = EVP_PKEY_get1_EC_KEY(key);
134 EVP_PKEY_free(key);
135 if (!dtmp)
136 return NULL;
137 if (eckey) {
138 EC_KEY_free(*eckey);
139 *eckey = dtmp;
140 }
141 return dtmp;
142}
143
144EC_KEY *PEM_read_bio_ECPrivateKey(BIO *bp, EC_KEY **key, pem_password_cb *cb,
145 void *u)
146{
147 EVP_PKEY *pktmp;
148 pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
149 return pkey_get_eckey(pktmp, key); /* will free pktmp */
150}
151
152IMPLEMENT_PEM_rw(ECPKParameters, EC_GROUP, PEM_STRING_ECPARAMETERS,
153 ECPKParameters)
154
155
156IMPLEMENT_PEM_write_cb(ECPrivateKey, EC_KEY, PEM_STRING_ECPRIVATEKEY,
157 ECPrivateKey)
158IMPLEMENT_PEM_rw(EC_PUBKEY, EC_KEY, PEM_STRING_PUBLIC, EC_PUBKEY)
159# ifndef OPENSSL_NO_STDIO
160EC_KEY *PEM_read_ECPrivateKey(FILE *fp, EC_KEY **eckey, pem_password_cb *cb,
161 void *u)
162{
163 EVP_PKEY *pktmp;
164 pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
165 return pkey_get_eckey(pktmp, eckey); /* will free pktmp */
166}
167
168# endif
169
170#endif
171
172#ifndef OPENSSL_NO_DH
173
174IMPLEMENT_PEM_write(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
175IMPLEMENT_PEM_write(DHxparams, DH, PEM_STRING_DHXPARAMS, DHxparams)
176#endif
177IMPLEMENT_PEM_provided_write(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)
178IMPLEMENT_PEM_read(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)
179