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 <openssl/serializer.h>
23 #include "crypto/store.h"
24 #include "crypto/asn1.h"
25 #include "crypto/evp.h"
26 #include "pem_local.h"
28 int pem_check_suffix(const char *pem_str, const char *suffix);
30 EVP_PKEY *PEM_read_bio_PrivateKey_ex(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
31 void *u, OPENSSL_CTX *libctx,
35 OSSL_STORE_CTX *ctx = NULL;
36 OSSL_STORE_INFO *info = NULL;
37 UI_METHOD *ui_method = NULL;
39 if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
42 if ((ctx = ossl_store_attach_pem_bio(bp, ui_method, u, libctx,
45 #ifndef OPENSSL_NO_SECURE_HEAP
48 if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
53 while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
54 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY) {
55 ret = OSSL_STORE_INFO_get1_PKEY(info);
58 OSSL_STORE_INFO_free(info);
61 if (ret != NULL && x != NULL)
65 ossl_store_detach_pem_bio(ctx);
66 UI_destroy_method(ui_method);
67 OSSL_STORE_INFO_free(info);
71 EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
74 return PEM_read_bio_PrivateKey_ex(bp, x, cb, u, NULL, NULL);
77 PEM_write_cb_fnsig(PrivateKey, EVP_PKEY, BIO, write_bio)
79 IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, PrivateKey);
81 IMPLEMENT_PEM_provided_write_body_pass();
82 IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
85 if (x->ameth == NULL || x->ameth->priv_encode != NULL)
86 return PEM_write_bio_PKCS8PrivateKey(out, x, enc,
87 (const char *)kstr, klen, cb, u);
88 return PEM_write_bio_PrivateKey_traditional(out, x, enc, kstr, klen, cb, u);
91 int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
92 const EVP_CIPHER *enc,
93 const unsigned char *kstr, int klen,
94 pem_password_cb *cb, void *u)
97 BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
98 return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
99 pem_str, bp, x, enc, kstr, klen, cb, u);
102 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
104 EVP_PKEY *ret = NULL;
105 OSSL_STORE_CTX *ctx = NULL;
106 OSSL_STORE_INFO *info = NULL;
108 if ((ctx = ossl_store_attach_pem_bio(bp, UI_null(), NULL, NULL, NULL)) == NULL)
111 while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
112 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
113 ret = OSSL_STORE_INFO_get1_PARAMS(info);
116 OSSL_STORE_INFO_free(info);
119 if (ret != NULL && x != NULL)
123 ossl_store_detach_pem_bio(ctx);
124 OSSL_STORE_INFO_free(info);
128 PEM_write_fnsig(Parameters, EVP_PKEY, BIO, write_bio)
131 IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, Parameters);
133 IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
136 if (!x->ameth || !x->ameth->param_encode)
139 BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
140 return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
141 pem_str, out, x, NULL, NULL, 0, 0, NULL);
144 #ifndef OPENSSL_NO_STDIO
145 EVP_PKEY *PEM_read_PrivateKey_ex(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
146 void *u, OPENSSL_CTX *libctx,
152 if ((b = BIO_new(BIO_s_file())) == NULL) {
153 PEMerr(0, ERR_R_BUF_LIB);
156 BIO_set_fp(b, fp, BIO_NOCLOSE);
157 ret = PEM_read_bio_PrivateKey_ex(b, x, cb, u, libctx, propq);
162 EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
165 return PEM_read_PrivateKey_ex(fp, x, cb, u, NULL, NULL);
168 int PEM_write_PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
169 const unsigned char *kstr, int klen,
170 pem_password_cb *cb, void *u)
175 if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
176 PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
179 ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
186 #ifndef OPENSSL_NO_DH
188 /* Transparently read in PKCS#3 or X9.42 DH parameters */
190 DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
193 EVP_PKEY *pkey = NULL;
194 OSSL_STORE_CTX *ctx = NULL;
195 OSSL_STORE_INFO *info = NULL;
196 UI_METHOD *ui_method = NULL;
198 if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
201 if ((ctx = ossl_store_attach_pem_bio(bp, ui_method, u, NULL, NULL)) == NULL)
204 while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
205 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
206 pkey = OSSL_STORE_INFO_get0_PARAMS(info);
207 if (EVP_PKEY_id(pkey) == EVP_PKEY_DHX
208 || EVP_PKEY_id(pkey) == EVP_PKEY_DH) {
209 ret = EVP_PKEY_get1_DH(pkey);
213 OSSL_STORE_INFO_free(info);
216 if (ret != NULL && x != NULL)
220 ossl_store_detach_pem_bio(ctx);
221 UI_destroy_method(ui_method);
222 OSSL_STORE_INFO_free(info);
226 # ifndef OPENSSL_NO_STDIO
227 DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
232 if ((b = BIO_new(BIO_s_file())) == NULL) {
233 PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
236 BIO_set_fp(b, fp, BIO_NOCLOSE);
237 ret = PEM_read_bio_DHparams(b, x, cb, u);