2 * Copyright 1995-2020 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(bp, "file", libctx, propq, ui_method, u,
45 #ifndef OPENSSL_NO_SECURE_HEAP
48 if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
53 while (!OSSL_STORE_eof(ctx)
54 && (info = OSSL_STORE_load(ctx)) != NULL) {
55 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY) {
56 ret = OSSL_STORE_INFO_get1_PKEY(info);
59 OSSL_STORE_INFO_free(info);
63 if (ret != NULL && x != NULL)
67 OSSL_STORE_close(ctx);
68 UI_destroy_method(ui_method);
69 OSSL_STORE_INFO_free(info);
73 EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
76 return PEM_read_bio_PrivateKey_ex(bp, x, cb, u, NULL, NULL);
79 PEM_write_cb_fnsig(PrivateKey, EVP_PKEY, BIO, write_bio)
81 IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, PrivateKey);
83 IMPLEMENT_PEM_provided_write_body_pass();
84 IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
87 if (x->ameth == NULL || x->ameth->priv_encode != NULL)
88 return PEM_write_bio_PKCS8PrivateKey(out, x, enc,
89 (const char *)kstr, klen, cb, u);
90 return PEM_write_bio_PrivateKey_traditional(out, x, enc, kstr, klen, cb, u);
93 int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
94 const EVP_CIPHER *enc,
95 const unsigned char *kstr, int klen,
96 pem_password_cb *cb, void *u)
99 BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
100 return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
101 pem_str, bp, x, enc, kstr, klen, cb, u);
104 EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
106 EVP_PKEY *ret = NULL;
107 OSSL_STORE_CTX *ctx = NULL;
108 OSSL_STORE_INFO *info = NULL;
110 if ((ctx = OSSL_STORE_attach(bp, "file", NULL, NULL, UI_null(), NULL,
111 NULL, NULL)) == NULL)
114 while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
115 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
116 ret = OSSL_STORE_INFO_get1_PARAMS(info);
119 OSSL_STORE_INFO_free(info);
123 if (ret != NULL && x != NULL)
127 OSSL_STORE_close(ctx);
128 OSSL_STORE_INFO_free(info);
132 PEM_write_fnsig(Parameters, EVP_PKEY, BIO, write_bio)
135 IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, Parameters);
137 IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
140 if (!x->ameth || !x->ameth->param_encode)
143 BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
144 return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
145 pem_str, out, x, NULL, NULL, 0, 0, NULL);
148 #ifndef OPENSSL_NO_STDIO
149 EVP_PKEY *PEM_read_PrivateKey_ex(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
150 void *u, OPENSSL_CTX *libctx,
156 if ((b = BIO_new(BIO_s_file())) == NULL) {
157 PEMerr(0, ERR_R_BUF_LIB);
160 BIO_set_fp(b, fp, BIO_NOCLOSE);
161 ret = PEM_read_bio_PrivateKey_ex(b, x, cb, u, libctx, propq);
166 EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
169 return PEM_read_PrivateKey_ex(fp, x, cb, u, NULL, NULL);
172 int PEM_write_PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
173 const unsigned char *kstr, int klen,
174 pem_password_cb *cb, void *u)
179 if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
180 PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
183 ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
190 #ifndef OPENSSL_NO_DH
192 /* Transparently read in PKCS#3 or X9.42 DH parameters */
194 DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
197 EVP_PKEY *pkey = NULL;
198 OSSL_STORE_CTX *ctx = NULL;
199 OSSL_STORE_INFO *info = NULL;
200 UI_METHOD *ui_method = NULL;
202 if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
205 if ((ctx = OSSL_STORE_attach(bp, "file", NULL, NULL, ui_method, u,
206 NULL, NULL)) == NULL)
209 while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
210 if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
211 pkey = OSSL_STORE_INFO_get0_PARAMS(info);
212 if (EVP_PKEY_id(pkey) == EVP_PKEY_DHX
213 || EVP_PKEY_id(pkey) == EVP_PKEY_DH) {
214 ret = EVP_PKEY_get1_DH(pkey);
218 OSSL_STORE_INFO_free(info);
222 if (ret != NULL && x != NULL)
226 OSSL_STORE_close(ctx);
227 UI_destroy_method(ui_method);
228 OSSL_STORE_INFO_free(info);
232 # ifndef OPENSSL_NO_STDIO
233 DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
238 if ((b = BIO_new(BIO_s_file())) == NULL) {
239 PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
242 BIO_set_fp(b, fp, BIO_NOCLOSE);
243 ret = PEM_read_bio_DHparams(b, x, cb, u);