2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
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
11 #include "internal/cryptlib.h"
12 #include <openssl/buffer.h>
13 #include <openssl/objects.h>
14 #include <openssl/evp.h>
15 #include <openssl/x509.h>
16 #include <openssl/pkcs12.h>
17 #include <openssl/pem.h>
18 #include <openssl/engine.h>
19 #include <openssl/dh.h>
20 #include <openssl/store.h>
21 #include <openssl/ui.h>
22 #include "crypto/store.h"
23 #include "crypto/asn1.h"
24 #include "crypto/evp.h"
26 int pem_check_suffix(const char *pem_str, const char *suffix);
28 EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
32 OSSL_STORE_CTX *ctx = NULL;
33 OSSL_STORE_INFO *info = NULL;
34 UI_METHOD *ui_method = NULL;
36 if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
39 if ((ctx = ossl_store_attach_pem_bio(bp, ui_method, u)) == NULL)
41 #ifndef OPENSSL_NO_SECURE_HEAP
44 if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
49 while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
50 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY) {
51 ret = OSSL_STORE_INFO_get1_PKEY(info);
54 OSSL_STORE_INFO_free(info);
57 if (ret != NULL && x != NULL)
61 ossl_store_detach_pem_bio(ctx);
62 UI_destroy_method(ui_method);
63 OSSL_STORE_INFO_free(info);
67 int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
68 unsigned char *kstr, int klen,
69 pem_password_cb *cb, void *u)
71 if (x->ameth == NULL || x->ameth->priv_encode != NULL)
72 return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
73 (char *)kstr, klen, cb, u);
74 return PEM_write_bio_PrivateKey_traditional(bp, x, enc, kstr, klen, cb, u);
77 int PEM_write_bio_PrivateKey_traditional(BIO *bp, EVP_PKEY *x,
78 const EVP_CIPHER *enc,
79 unsigned char *kstr, int klen,
80 pem_password_cb *cb, void *u)
83 BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
84 return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
85 pem_str, bp, x, enc, kstr, klen, cb, u);
88 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
91 OSSL_STORE_CTX *ctx = NULL;
92 OSSL_STORE_INFO *info = NULL;
94 if ((ctx = ossl_store_attach_pem_bio(bp, UI_null(), NULL)) == NULL)
97 while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
98 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
99 ret = OSSL_STORE_INFO_get1_PARAMS(info);
102 OSSL_STORE_INFO_free(info);
105 if (ret != NULL && x != NULL)
109 ossl_store_detach_pem_bio(ctx);
110 OSSL_STORE_INFO_free(info);
114 int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x)
117 if (!x->ameth || !x->ameth->param_encode)
120 BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
121 return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
122 pem_str, bp, x, NULL, NULL, 0, 0, NULL);
125 #ifndef OPENSSL_NO_STDIO
126 EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
132 if ((b = BIO_new(BIO_s_file())) == NULL) {
133 PEMerr(PEM_F_PEM_READ_PRIVATEKEY, ERR_R_BUF_LIB);
136 BIO_set_fp(b, fp, BIO_NOCLOSE);
137 ret = PEM_read_bio_PrivateKey(b, x, cb, u);
142 int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
143 unsigned char *kstr, int klen,
144 pem_password_cb *cb, void *u)
149 if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
150 PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
153 ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
160 #ifndef OPENSSL_NO_DH
162 /* Transparently read in PKCS#3 or X9.42 DH parameters */
164 DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
167 EVP_PKEY *pkey = NULL;
168 OSSL_STORE_CTX *ctx = NULL;
169 OSSL_STORE_INFO *info = NULL;
170 UI_METHOD *ui_method = NULL;
172 if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
175 if ((ctx = ossl_store_attach_pem_bio(bp, ui_method, u)) == NULL)
178 while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
179 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
180 pkey = OSSL_STORE_INFO_get0_PARAMS(info);
181 if (EVP_PKEY_id(pkey) == EVP_PKEY_DHX
182 || EVP_PKEY_id(pkey) == EVP_PKEY_DH) {
183 ret = EVP_PKEY_get1_DH(pkey);
187 OSSL_STORE_INFO_free(info);
190 if (ret != NULL && x != NULL)
194 ossl_store_detach_pem_bio(ctx);
195 UI_destroy_method(ui_method);
196 OSSL_STORE_INFO_free(info);
200 # ifndef OPENSSL_NO_STDIO
201 DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
206 if ((b = BIO_new(BIO_s_file())) == NULL) {
207 PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
210 BIO_set_fp(b, fp, BIO_NOCLOSE);
211 ret = PEM_read_bio_DHparams(b, x, cb, u);