[thirdparty/openssl.git] / crypto / pem / pem_pkey.c

/*
 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/* We need to use some STORE deprecated APIs */
#define OPENSSL_SUPPRESS_DEPRECATED

#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pkcs12.h>
#include <openssl/pem.h>
#include <openssl/engine.h>
#include <openssl/dh.h>
#include <openssl/store.h>
#include <openssl/ui.h>
#include "crypto/store.h"
#include "crypto/asn1.h"
#include "crypto/evp.h"
#include "pem_local.h"

int pem_check_suffix(const char *pem_str, const char *suffix);

static EVP_PKEY *pem_read_bio_key(BIO *bp, EVP_PKEY **x,
                                  pem_password_cb *cb, void *u,
                                  OSSL_LIB_CTX *libctx, const char *propq,
                                  int expected_store_info_type,
                                  int try_secure)
{
    EVP_PKEY *ret = NULL;
    OSSL_STORE_CTX *ctx = NULL;
    OSSL_STORE_INFO *info = NULL;
    const UI_METHOD *ui_method = NULL;
    UI_METHOD *allocated_ui_method = NULL;

    if (expected_store_info_type != OSSL_STORE_INFO_PKEY
        && expected_store_info_type != OSSL_STORE_INFO_PUBKEY
        && expected_store_info_type != OSSL_STORE_INFO_PARAMS) {
        ERR_raise(ERR_LIB_PEM, ERR_R_PASSED_INVALID_ARGUMENT);
        return NULL;
    }

    if (u != NULL && cb == NULL)
        cb = PEM_def_callback;
    if (cb == NULL)
        ui_method = UI_null();
    else
        ui_method = allocated_ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0);
    if (ui_method == NULL)
        return NULL;

    if ((ctx = OSSL_STORE_attach(bp, "file", libctx, propq, ui_method, u,
                                 NULL, NULL)) == NULL)
        goto err;
#ifndef OPENSSL_NO_SECURE_HEAP
# ifndef OPENSSL_NO_DEPRECATED_3_0
    if (try_secure) {
        int on = 1;
        if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
            goto err;
    }
# endif
#endif

    while (!OSSL_STORE_eof(ctx)
           && (info = OSSL_STORE_load(ctx)) != NULL) {
        if (OSSL_STORE_INFO_get_type(info) == expected_store_info_type) {
            switch (expected_store_info_type) {
            case OSSL_STORE_INFO_PKEY:
                ret = OSSL_STORE_INFO_get1_PKEY(info);
                break;
            case OSSL_STORE_INFO_PUBKEY:
                ret = OSSL_STORE_INFO_get1_PUBKEY(info);
                break;
            case OSSL_STORE_INFO_PARAMS:
                ret = OSSL_STORE_INFO_get1_PARAMS(info);
                break;
            }
        }
        OSSL_STORE_INFO_free(info);
        info = NULL;
    }

    if (ret != NULL && x != NULL)
        *x = ret;

 err:
    OSSL_STORE_close(ctx);
    UI_destroy_method(allocated_ui_method);
    OSSL_STORE_INFO_free(info);
    return ret;
}

EVP_PKEY *PEM_read_bio_PUBKEY_ex(BIO *bp, EVP_PKEY **x,
                                 pem_password_cb *cb, void *u,
                                 OSSL_LIB_CTX *libctx, const char *propq)
{
    return pem_read_bio_key(bp, x, cb, u, libctx, propq,
                            OSSL_STORE_INFO_PUBKEY, 0);
}

EVP_PKEY *PEM_read_bio_PUBKEY(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
                              void *u)
{
    return PEM_read_bio_PUBKEY_ex(bp, x, cb, u, NULL, NULL);
}

#ifndef OPENSSL_NO_STDIO
EVP_PKEY *PEM_read_PUBKEY_ex(FILE *fp, EVP_PKEY **x,
                             pem_password_cb *cb, void *u,
                             OSSL_LIB_CTX *libctx, const char *propq)
{
    BIO *b;
    EVP_PKEY *ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        PEMerr(0, ERR_R_BUF_LIB);
        return 0;
    }
    BIO_set_fp(b, fp, BIO_NOCLOSE);
    ret = PEM_read_bio_PUBKEY_ex(b, x, cb, u, libctx, propq);
    BIO_free(b);
    return ret;
}

EVP_PKEY *PEM_read_PUBKEY(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
{
    return PEM_read_PUBKEY_ex(fp, x, cb, u, NULL, NULL);
}
#endif

EVP_PKEY *PEM_read_bio_PrivateKey_ex(BIO *bp, EVP_PKEY **x,
                                     pem_password_cb *cb, void *u,
                                     OSSL_LIB_CTX *libctx, const char *propq)
{
    return pem_read_bio_key(bp, x, cb, u, libctx, propq,
                            OSSL_STORE_INFO_PKEY, 1);
}

EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
                                  void *u)
{
    return PEM_read_bio_PrivateKey_ex(bp, x, cb, u, NULL, NULL);
}

PEM_write_cb_fnsig(PrivateKey, EVP_PKEY, BIO, write_bio)
{
    IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, PrivateKey);

    IMPLEMENT_PEM_provided_write_body_pass();
    IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);

 legacy:
    if (x->ameth == NULL || x->ameth->priv_encode != NULL)
        return PEM_write_bio_PKCS8PrivateKey(out, x, enc,
                                             (const char *)kstr, klen, cb, u);
    return PEM_write_bio_PrivateKey_traditional(out, x, enc, kstr, klen, cb, u);
}

/*
 * Note: there is no way to tell a provided pkey encoder to use "traditional"
 * encoding.  Therefore, if the pkey is provided, we try to take a copy 
 * TODO: when #legacy keys are gone, this function will not be possible any
 * more and should be removed.
 */
int PEM_write_bio_PrivateKey_traditional(BIO *bp, const EVP_PKEY *x,
                                         const EVP_CIPHER *enc,
                                         const unsigned char *kstr, int klen,
                                         pem_password_cb *cb, void *u)
{
    char pem_str[80];
    EVP_PKEY *copy = NULL;
    int ret;

    if (evp_pkey_is_assigned(x)
        && evp_pkey_is_provided(x)
        && evp_pkey_copy_downgraded(&copy, x))
        x = copy;

    if (x->ameth == NULL || x->ameth->old_priv_encode == NULL) {
        ERR_raise(ERR_LIB_PEM, PEM_R_UNSUPPORTED_PUBLIC_KEY_TYPE);
        return 0;
    }
    BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
    ret = PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
                             pem_str, bp, x, enc, kstr, klen, cb, u);

    EVP_PKEY_free(copy);
    return ret;
}

EVP_PKEY *PEM_read_bio_Parameters_ex(BIO *bp, EVP_PKEY **x,
                                     OSSL_LIB_CTX *libctx, const char *propq)
{
    return pem_read_bio_key(bp, x, NULL, NULL, libctx, propq,
                            OSSL_STORE_INFO_PARAMS, 0);
}

EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
{
    return PEM_read_bio_Parameters_ex(bp, x, NULL, NULL);
}

PEM_write_fnsig(Parameters, EVP_PKEY, BIO, write_bio)
{
    char pem_str[80];
    IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, Parameters);

    IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);

 legacy:
    if (!x->ameth || !x->ameth->param_encode)
        return 0;

    BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
    return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
                              pem_str, out, x, NULL, NULL, 0, 0, NULL);
}

#ifndef OPENSSL_NO_STDIO
EVP_PKEY *PEM_read_PrivateKey_ex(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
                                 void *u, OSSL_LIB_CTX *libctx,
                                 const char *propq)
{
    BIO *b;
    EVP_PKEY *ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        PEMerr(0, ERR_R_BUF_LIB);
        return 0;
    }
    BIO_set_fp(b, fp, BIO_NOCLOSE);
    ret = PEM_read_bio_PrivateKey_ex(b, x, cb, u, libctx, propq);
    BIO_free(b);
    return ret;
}

EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
                              void *u)
{
    return PEM_read_PrivateKey_ex(fp, x, cb, u, NULL, NULL);
}

int PEM_write_PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
                         const unsigned char *kstr, int klen,
                         pem_password_cb *cb, void *u)
{
    BIO *b;
    int ret;

    if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
        PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
        return 0;
    }
    ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
    BIO_free(b);
    return ret;
}

#endif

#ifndef OPENSSL_NO_DH

/* Transparently read in PKCS#3 or X9.42 DH parameters */

DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
{
    DH *ret = NULL;
    EVP_PKEY *pkey = NULL;
    OSSL_STORE_CTX *ctx = NULL;
    OSSL_STORE_INFO *info = NULL;
    UI_METHOD *ui_method = NULL;

    if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
        return NULL;

    if ((ctx = OSSL_STORE_attach(bp, "file", NULL, NULL, ui_method, u,
                                 NULL, NULL)) == NULL)
        goto err;

    while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
        if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
            pkey = OSSL_STORE_INFO_get0_PARAMS(info);
            if (EVP_PKEY_id(pkey) == EVP_PKEY_DHX
                || EVP_PKEY_id(pkey) == EVP_PKEY_DH) {
                ret = EVP_PKEY_get1_DH(pkey);
                break;
            }
        }
        OSSL_STORE_INFO_free(info);
        info = NULL;
    }

    if (ret != NULL && x != NULL)
        *x = ret;

 err:
    OSSL_STORE_close(ctx);
    UI_destroy_method(ui_method);
    OSSL_STORE_INFO_free(info);
    return ret;
}

# ifndef OPENSSL_NO_STDIO
DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
{
    BIO *b;
    DH *ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
        return 0;
    }
    BIO_set_fp(b, fp, BIO_NOCLOSE);
    ret = PEM_read_bio_DHparams(b, x, cb, u);
    BIO_free(b);
    return ret;
}
# endif

#endif
Commit	Line	Data
62867571	1	/*
33388b44	2	* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
1241126a	3	*
16742672	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
62867571 RS	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
1241126a DSH	8	*/
1241126a DSH	9
a1447076 RL	10	/* We need to use some STORE deprecated APIs */
	11	#define OPENSSL_SUPPRESS_DEPRECATED
	12
1241126a	13	#include <stdio.h>
b39fc560	14	#include "internal/cryptlib.h"
1241126a DSH	15	#include <openssl/buffer.h>
	16	#include <openssl/objects.h>
	17	#include <openssl/evp.h>
1241126a DSH	18	#include <openssl/x509.h>
	19	#include <openssl/pkcs12.h>
	20	#include <openssl/pem.h>
3c27208f RS	21	#include <openssl/engine.h>
3c27208f RS	22	#include <openssl/dh.h>
1427d33c RL	23	#include <openssl/store.h>
	24	#include <openssl/ui.h>
	25	#include "crypto/store.h"
25f2138b DMSP	26	#include "crypto/asn1.h"
25f2138b DMSP	27	#include "crypto/evp.h"
f864a939	28	#include "pem_local.h"
1241126a	29
e4263314	30	int pem_check_suffix(const char pem_str, const char suffix);
1241126a	31
6e5ccd58 RL	32	static EVP_PKEY pem_read_bio_key(BIO bp, EVP_PKEY **x,
6e5ccd58 RL	33	pem_password_cb cb, void u,
b4250010	34	OSSL_LIB_CTX libctx, const char propq,
6e5ccd58 RL	35	int expected_store_info_type,
6e5ccd58 RL	36	int try_secure)
0f113f3e	37	{
0f113f3e	38	EVP_PKEY *ret = NULL;
1427d33c RL	39	OSSL_STORE_CTX *ctx = NULL;
1427d33c RL	40	OSSL_STORE_INFO *info = NULL;
6e5ccd58 RL	41	const UI_METHOD *ui_method = NULL;
6e5ccd58 RL	42	UI_METHOD *allocated_ui_method = NULL;
1241126a	43
6e5ccd58 RL	44	if (expected_store_info_type != OSSL_STORE_INFO_PKEY
	45	&& expected_store_info_type != OSSL_STORE_INFO_PUBKEY
	46	&& expected_store_info_type != OSSL_STORE_INFO_PARAMS) {
	47	ERR_raise(ERR_LIB_PEM, ERR_R_PASSED_INVALID_ARGUMENT);
	48	return NULL;
	49	}
	50
	51	if (u != NULL && cb == NULL)
	52	cb = PEM_def_callback;
	53	if (cb == NULL)
	54	ui_method = UI_null();
	55	else
	56	ui_method = allocated_ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0);
	57	if (ui_method == NULL)
0f113f3e	58	return NULL;
1427d33c	59
6725682d	60	if ((ctx = OSSL_STORE_attach(bp, "file", libctx, propq, ui_method, u,
6ab6ecfd	61	NULL, NULL)) == NULL)
1427d33c RL	62	goto err;
1427d33c RL	63	#ifndef OPENSSL_NO_SECURE_HEAP
a1447076 RL	64	# ifndef OPENSSL_NO_DEPRECATED_3_0
a1447076 RL	65	if (try_secure) {
1427d33c RL	66	int on = 1;
1427d33c RL	67	if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
0f113f3e	68	goto err;
1427d33c	69	}
a1447076	70	# endif
1427d33c RL	71	#endif
1427d33c RL	72
6725682d SL	73	while (!OSSL_STORE_eof(ctx)
6725682d SL	74	&& (info = OSSL_STORE_load(ctx)) != NULL) {
6e5ccd58 RL	75	if (OSSL_STORE_INFO_get_type(info) == expected_store_info_type) {
	76	switch (expected_store_info_type) {
	77	case OSSL_STORE_INFO_PKEY:
	78	ret = OSSL_STORE_INFO_get1_PKEY(info);
	79	break;
	80	case OSSL_STORE_INFO_PUBKEY:
	81	ret = OSSL_STORE_INFO_get1_PUBKEY(info);
	82	break;
	83	case OSSL_STORE_INFO_PARAMS:
	84	ret = OSSL_STORE_INFO_get1_PARAMS(info);
	85	break;
	86	}
0f113f3e	87	}
1427d33c	88	OSSL_STORE_INFO_free(info);
6ab6ecfd	89	info = NULL;
0f113f3e	90	}
1427d33c RL	91
	92	if (ret != NULL && x != NULL)
	93	*x = ret;
	94
0f113f3e	95	err:
6ab6ecfd	96	OSSL_STORE_close(ctx);
6e5ccd58	97	UI_destroy_method(allocated_ui_method);
1427d33c	98	OSSL_STORE_INFO_free(info);
26a7d938	99	return ret;
0f113f3e	100	}
1241126a	101
6e5ccd58 RL	102	EVP_PKEY PEM_read_bio_PUBKEY_ex(BIO bp, EVP_PKEY **x,
6e5ccd58 RL	103	pem_password_cb cb, void u,
b4250010	104	OSSL_LIB_CTX libctx, const char propq)
6e5ccd58 RL	105	{
	106	return pem_read_bio_key(bp, x, cb, u, libctx, propq,
	107	OSSL_STORE_INFO_PUBKEY, 0);
	108	}
	109
	110	EVP_PKEY PEM_read_bio_PUBKEY(BIO bp, EVP_PKEY *x, pem_password_cb cb,
	111	void *u)
	112	{
	113	return PEM_read_bio_PUBKEY_ex(bp, x, cb, u, NULL, NULL);
	114	}
	115
	116	#ifndef OPENSSL_NO_STDIO
	117	EVP_PKEY PEM_read_PUBKEY_ex(FILE fp, EVP_PKEY **x,
	118	pem_password_cb cb, void u,
b4250010	119	OSSL_LIB_CTX libctx, const char propq)
6e5ccd58 RL	120	{
	121	BIO *b;
	122	EVP_PKEY *ret;
	123
	124	if ((b = BIO_new(BIO_s_file())) == NULL) {
	125	PEMerr(0, ERR_R_BUF_LIB);
	126	return 0;
	127	}
	128	BIO_set_fp(b, fp, BIO_NOCLOSE);
	129	ret = PEM_read_bio_PUBKEY_ex(b, x, cb, u, libctx, propq);
	130	BIO_free(b);
	131	return ret;
	132	}
	133
	134	EVP_PKEY PEM_read_PUBKEY(FILE fp, EVP_PKEY *x, pem_password_cb cb, void *u)
	135	{
	136	return PEM_read_PUBKEY_ex(fp, x, cb, u, NULL, NULL);
	137	}
	138	#endif
	139
	140	EVP_PKEY PEM_read_bio_PrivateKey_ex(BIO bp, EVP_PKEY **x,
	141	pem_password_cb cb, void u,
b4250010	142	OSSL_LIB_CTX libctx, const char propq)
6e5ccd58 RL	143	{
	144	return pem_read_bio_key(bp, x, cb, u, libctx, propq,
	145	OSSL_STORE_INFO_PKEY, 1);
	146	}
	147
1531241c MC	148	EVP_PKEY PEM_read_bio_PrivateKey(BIO bp, EVP_PKEY *x, pem_password_cb cb,
	149	void *u)
	150	{
	151	return PEM_read_bio_PrivateKey_ex(bp, x, cb, u, NULL, NULL);
	152	}
	153
f864a939	154	PEM_write_cb_fnsig(PrivateKey, EVP_PKEY, BIO, write_bio)
0f113f3e	155	{
f864a939 RL	156	IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, PrivateKey);
	157
	158	IMPLEMENT_PEM_provided_write_body_pass();
	159	IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
	160
	161	legacy:
05dba815	162	if (x->ameth == NULL \|\| x->ameth->priv_encode != NULL)
f864a939	163	return PEM_write_bio_PKCS8PrivateKey(out, x, enc,
de0799b0	164	(const char *)kstr, klen, cb, u);
f864a939	165	return PEM_write_bio_PrivateKey_traditional(out, x, enc, kstr, klen, cb, u);
05dba815	166	}
e4263314	167
4ce1025a RL	168	/*
	169	* Note: there is no way to tell a provided pkey encoder to use "traditional"
	170	* encoding. Therefore, if the pkey is provided, we try to take a copy
	171	* TODO: when #legacy keys are gone, this function will not be possible any
	172	* more and should be removed.
	173	*/
de0799b0	174	int PEM_write_bio_PrivateKey_traditional(BIO bp, const EVP_PKEY x,
05dba815	175	const EVP_CIPHER *enc,
de0799b0	176	const unsigned char *kstr, int klen,
05dba815 DSH	177	pem_password_cb cb, void u)
	178	{
	179	char pem_str[80];
4ce1025a RL	180	EVP_PKEY *copy = NULL;
	181	int ret;
	182
	183	if (evp_pkey_is_assigned(x)
	184	&& evp_pkey_is_provided(x)
	185	&& evp_pkey_copy_downgraded(&copy, x))
	186	x = copy;
87d91d22 RL	187
	188	if (x->ameth == NULL \|\| x->ameth->old_priv_encode == NULL) {
	189	ERR_raise(ERR_LIB_PEM, PEM_R_UNSUPPORTED_PUBLIC_KEY_TYPE);
	190	return 0;
	191	}
0f113f3e	192	BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
4ce1025a RL	193	ret = PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
	194	pem_str, bp, x, enc, kstr, klen, cb, u);
	195
	196	EVP_PKEY_free(copy);
	197	return ret;
0f113f3e	198	}
e4263314	199
6e5ccd58	200	EVP_PKEY PEM_read_bio_Parameters_ex(BIO bp, EVP_PKEY **x,
b4250010	201	OSSL_LIB_CTX libctx, const char propq)
0f113f3e	202	{
6e5ccd58 RL	203	return pem_read_bio_key(bp, x, NULL, NULL, libctx, propq,
	204	OSSL_STORE_INFO_PARAMS, 0);
	205	}
1427d33c	206
6e5ccd58 RL	207	EVP_PKEY PEM_read_bio_Parameters(BIO bp, EVP_PKEY **x)
	208	{
	209	return PEM_read_bio_Parameters_ex(bp, x, NULL, NULL);
0f113f3e	210	}
db98bbc1	211
f864a939	212	PEM_write_fnsig(Parameters, EVP_PKEY, BIO, write_bio)
0f113f3e MC	213	{
0f113f3e MC	214	char pem_str[80];
f864a939 RL	215	IMPLEMENT_PEM_provided_write_body_vars(EVP_PKEY, Parameters);
	216
	217	IMPLEMENT_PEM_provided_write_body_main(EVP_PKEY, bio);
	218
	219	legacy:
0f113f3e MC	220	if (!x->ameth \|\| !x->ameth->param_encode)
0f113f3e MC	221	return 0;
db98bbc1	222
0f113f3e MC	223	BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
0f113f3e MC	224	return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode,
f864a939	225	pem_str, out, x, NULL, NULL, 0, 0, NULL);
0f113f3e	226	}
e4263314	227
4b618848	228	#ifndef OPENSSL_NO_STDIO
1531241c	229	EVP_PKEY PEM_read_PrivateKey_ex(FILE fp, EVP_PKEY *x, pem_password_cb cb,
b4250010	230	void u, OSSL_LIB_CTX libctx,
1531241c	231	const char *propq)
0f113f3e MC	232	{
	233	BIO *b;
	234	EVP_PKEY *ret;
1241126a	235
0f113f3e	236	if ((b = BIO_new(BIO_s_file())) == NULL) {
1531241c	237	PEMerr(0, ERR_R_BUF_LIB);
26a7d938	238	return 0;
0f113f3e MC	239	}
0f113f3e MC	240	BIO_set_fp(b, fp, BIO_NOCLOSE);
1531241c	241	ret = PEM_read_bio_PrivateKey_ex(b, x, cb, u, libctx, propq);
0f113f3e	242	BIO_free(b);
26a7d938	243	return ret;
0f113f3e	244	}
e4263314	245
1531241c MC	246	EVP_PKEY PEM_read_PrivateKey(FILE fp, EVP_PKEY *x, pem_password_cb cb,
	247	void *u)
	248	{
	249	return PEM_read_PrivateKey_ex(fp, x, cb, u, NULL, NULL);
	250	}
	251
de0799b0 RL	252	int PEM_write_PrivateKey(FILE fp, const EVP_PKEY x, const EVP_CIPHER *enc,
de0799b0 RL	253	const unsigned char *kstr, int klen,
0f113f3e MC	254	pem_password_cb cb, void u)
	255	{
	256	BIO *b;
	257	int ret;
e4263314	258
0f113f3e MC	259	if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
	260	PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
	261	return 0;
	262	}
	263	ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
	264	BIO_free(b);
	265	return ret;
	266	}
e4263314	267
1241126a	268	#endif
2ca873e8 DSH	269
	270	#ifndef OPENSSL_NO_DH
	271
	272	/* Transparently read in PKCS#3 or X9.42 DH parameters */
	273
	274	DH PEM_read_bio_DHparams(BIO bp, DH *x, pem_password_cb cb, void *u)
0f113f3e	275	{
0f113f3e	276	DH *ret = NULL;
1427d33c RL	277	EVP_PKEY *pkey = NULL;
	278	OSSL_STORE_CTX *ctx = NULL;
	279	OSSL_STORE_INFO *info = NULL;
	280	UI_METHOD *ui_method = NULL;
2ca873e8	281
1427d33c	282	if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
0f113f3e	283	return NULL;
2ca873e8	284
6725682d	285	if ((ctx = OSSL_STORE_attach(bp, "file", NULL, NULL, ui_method, u,
6ab6ecfd	286	NULL, NULL)) == NULL)
1427d33c RL	287	goto err;
	288
	289	while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
	290	if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PARAMS) {
	291	pkey = OSSL_STORE_INFO_get0_PARAMS(info);
	292	if (EVP_PKEY_id(pkey) == EVP_PKEY_DHX
	293	\|\| EVP_PKEY_id(pkey) == EVP_PKEY_DH) {
	294	ret = EVP_PKEY_get1_DH(pkey);
	295	break;
	296	}
	297	}
	298	OSSL_STORE_INFO_free(info);
6ab6ecfd	299	info = NULL;
1427d33c	300	}
2ca873e8	301
1427d33c RL	302	if (ret != NULL && x != NULL)
	303	*x = ret;
	304
	305	err:
6ab6ecfd	306	OSSL_STORE_close(ctx);
1427d33c RL	307	UI_destroy_method(ui_method);
1427d33c RL	308	OSSL_STORE_INFO_free(info);
0f113f3e MC	309	return ret;
0f113f3e MC	310	}
2ca873e8	311
0f113f3e	312	# ifndef OPENSSL_NO_STDIO
2ca873e8	313	DH PEM_read_DHparams(FILE fp, DH *x, pem_password_cb cb, void *u)
0f113f3e MC	314	{
	315	BIO *b;
	316	DH *ret;
2ca873e8	317
0f113f3e MC	318	if ((b = BIO_new(BIO_s_file())) == NULL) {
0f113f3e MC	319	PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
26a7d938	320	return 0;
0f113f3e MC	321	}
	322	BIO_set_fp(b, fp, BIO_NOCLOSE);
	323	ret = PEM_read_bio_DHparams(b, x, cb, u);
	324	BIO_free(b);
26a7d938	325	return ret;
0f113f3e MC	326	}
0f113f3e MC	327	# endif
2ca873e8 DSH	328
2ca873e8 DSH	329	#endif