1 /*
2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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
21 #ifndef OPENSSL_NO_RSA
22 static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa);
23 #endif
24 #ifndef OPENSSL_NO_DSA
25 static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa);
26 #endif
27
28 #ifndef OPENSSL_NO_EC
29 static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey);
30 #endif
31
IMPLEMENT_PEM_rw(X509_REQ,X509_REQ,PEM_STRING_X509_REQ,X509_REQ)32 IMPLEMENT_PEM_rw(X509_REQ, X509_REQ, PEM_STRING_X509_REQ, X509_REQ)
33
34 IMPLEMENT_PEM_write(X509_REQ_NEW, X509_REQ, PEM_STRING_X509_REQ_OLD, X509_REQ)
35 IMPLEMENT_PEM_rw(X509_CRL, X509_CRL, PEM_STRING_X509_CRL, X509_CRL)
36 IMPLEMENT_PEM_rw(PKCS7, PKCS7, PEM_STRING_PKCS7, PKCS7)
37
38 IMPLEMENT_PEM_rw(NETSCAPE_CERT_SEQUENCE, NETSCAPE_CERT_SEQUENCE,
39 PEM_STRING_X509, NETSCAPE_CERT_SEQUENCE)
40 #ifndef OPENSSL_NO_RSA
41 /*
42 * We treat RSA or DSA private keys as a special case. For private keys we
43 * read in an EVP_PKEY structure with PEM_read_bio_PrivateKey() and extract
44 * the relevant private key: this means can handle "traditional" and PKCS#8
45 * formats transparently.
46 */
47 static RSA *pkey_get_rsa(EVP_PKEY *key, RSA **rsa)
48 {
49 RSA *rtmp;
50 if (!key)
51 return NULL;
52 rtmp = EVP_PKEY_get1_RSA(key);
53 EVP_PKEY_free(key);
54 if (!rtmp)
55 return NULL;
56 if (rsa) {
57 RSA_free(*rsa);
58 *rsa = rtmp;
59 }
60 return rtmp;
61 }
62
PEM_read_bio_RSAPrivateKey(BIO * bp,RSA ** rsa,pem_password_cb * cb,void * u)63 RSA *PEM_read_bio_RSAPrivateKey(BIO *bp, RSA **rsa, pem_password_cb *cb,
64 void *u)
65 {
66 EVP_PKEY *pktmp;
67 pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
68 return pkey_get_rsa(pktmp, rsa);
69 }
70
71 # ifndef OPENSSL_NO_STDIO
72
PEM_read_RSAPrivateKey(FILE * fp,RSA ** rsa,pem_password_cb * cb,void * u)73 RSA *PEM_read_RSAPrivateKey(FILE *fp, RSA **rsa, pem_password_cb *cb, void *u)
74 {
75 EVP_PKEY *pktmp;
76 pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
77 return pkey_get_rsa(pktmp, rsa);
78 }
79
80 # endif
81
IMPLEMENT_PEM_write_cb_const(RSAPrivateKey,RSA,PEM_STRING_RSA,RSAPrivateKey)82 IMPLEMENT_PEM_write_cb_const(RSAPrivateKey, RSA, PEM_STRING_RSA,
83 RSAPrivateKey)
84
85
86 IMPLEMENT_PEM_rw_const(RSAPublicKey, RSA, PEM_STRING_RSA_PUBLIC,
87 RSAPublicKey)
88 IMPLEMENT_PEM_rw(RSA_PUBKEY, RSA, PEM_STRING_PUBLIC, RSA_PUBKEY)
89 #endif
90 #ifndef OPENSSL_NO_DSA
91 static DSA *pkey_get_dsa(EVP_PKEY *key, DSA **dsa)
92 {
93 DSA *dtmp;
94 if (!key)
95 return NULL;
96 dtmp = EVP_PKEY_get1_DSA(key);
97 EVP_PKEY_free(key);
98 if (!dtmp)
99 return NULL;
100 if (dsa) {
101 DSA_free(*dsa);
102 *dsa = dtmp;
103 }
104 return dtmp;
105 }
106
PEM_read_bio_DSAPrivateKey(BIO * bp,DSA ** dsa,pem_password_cb * cb,void * u)107 DSA *PEM_read_bio_DSAPrivateKey(BIO *bp, DSA **dsa, pem_password_cb *cb,
108 void *u)
109 {
110 EVP_PKEY *pktmp;
111 pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
112 return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
113 }
114
IMPLEMENT_PEM_write_cb_const(DSAPrivateKey,DSA,PEM_STRING_DSA,DSAPrivateKey)115 IMPLEMENT_PEM_write_cb_const(DSAPrivateKey, DSA, PEM_STRING_DSA,
116 DSAPrivateKey)
117 IMPLEMENT_PEM_rw(DSA_PUBKEY, DSA, PEM_STRING_PUBLIC, DSA_PUBKEY)
118 # ifndef OPENSSL_NO_STDIO
119 DSA *PEM_read_DSAPrivateKey(FILE *fp, DSA **dsa, pem_password_cb *cb, void *u)
120 {
121 EVP_PKEY *pktmp;
122 pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
123 return pkey_get_dsa(pktmp, dsa); /* will free pktmp */
124 }
125
126 # endif
127
IMPLEMENT_PEM_rw_const(DSAparams,DSA,PEM_STRING_DSAPARAMS,DSAparams)128 IMPLEMENT_PEM_rw_const(DSAparams, DSA, PEM_STRING_DSAPARAMS, DSAparams)
129 #endif
130 #ifndef OPENSSL_NO_EC
131 static EC_KEY *pkey_get_eckey(EVP_PKEY *key, EC_KEY **eckey)
132 {
133 EC_KEY *dtmp;
134 if (!key)
135 return NULL;
136 dtmp = EVP_PKEY_get1_EC_KEY(key);
137 EVP_PKEY_free(key);
138 if (!dtmp)
139 return NULL;
140 if (eckey) {
141 EC_KEY_free(*eckey);
142 *eckey = dtmp;
143 }
144 return dtmp;
145 }
146
PEM_read_bio_ECPrivateKey(BIO * bp,EC_KEY ** key,pem_password_cb * cb,void * u)147 EC_KEY *PEM_read_bio_ECPrivateKey(BIO *bp, EC_KEY **key, pem_password_cb *cb,
148 void *u)
149 {
150 EVP_PKEY *pktmp;
151 pktmp = PEM_read_bio_PrivateKey(bp, NULL, cb, u);
152 return pkey_get_eckey(pktmp, key); /* will free pktmp */
153 }
154
IMPLEMENT_PEM_rw_const(ECPKParameters,EC_GROUP,PEM_STRING_ECPARAMETERS,ECPKParameters)155 IMPLEMENT_PEM_rw_const(ECPKParameters, EC_GROUP, PEM_STRING_ECPARAMETERS,
156 ECPKParameters)
157
158
159 IMPLEMENT_PEM_write_cb(ECPrivateKey, EC_KEY, PEM_STRING_ECPRIVATEKEY,
160 ECPrivateKey)
161 IMPLEMENT_PEM_rw(EC_PUBKEY, EC_KEY, PEM_STRING_PUBLIC, EC_PUBKEY)
162 # ifndef OPENSSL_NO_STDIO
163 EC_KEY *PEM_read_ECPrivateKey(FILE *fp, EC_KEY **eckey, pem_password_cb *cb,
164 void *u)
165 {
166 EVP_PKEY *pktmp;
167 pktmp = PEM_read_PrivateKey(fp, NULL, cb, u);
168 return pkey_get_eckey(pktmp, eckey); /* will free pktmp */
169 }
170
171 # endif
172
173 #endif
174
175 #ifndef OPENSSL_NO_DH
176
177 IMPLEMENT_PEM_write_const(DHparams, DH, PEM_STRING_DHPARAMS, DHparams)
178 IMPLEMENT_PEM_write_const(DHxparams, DH, PEM_STRING_DHXPARAMS, DHxparams)
179 #endif
180 IMPLEMENT_PEM_rw(PUBKEY, EVP_PKEY, PEM_STRING_PUBLIC, PUBKEY)
181