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

/*
 * Copyright 1995-2018 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
 */

#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"

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

EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
                                  void *u)
{
    EVP_PKEY *ret = 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_pem_bio(bp, ui_method, u)) == NULL)
        goto err;
#ifndef OPENSSL_NO_SECURE_HEAP
    {
        int on = 1;
        if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
            goto err;
    }
#endif

    while (!OSSL_STORE_eof(ctx) && (info = OSSL_STORE_load(ctx)) != NULL) {
        if (OSSL_STORE_INFO_get_type(info) == OSSL_STORE_INFO_PKEY) {
            ret = OSSL_STORE_INFO_get1_PKEY(info);
            break;
        }
        OSSL_STORE_INFO_free(info);
    }

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

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

int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
                             unsigned char *kstr, int klen,
                             pem_password_cb *cb, void *u)
{
    if (x->ameth == NULL || x->ameth->priv_encode != NULL)
        return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
                                             (char *)kstr, klen, cb, u);
    return PEM_write_bio_PrivateKey_traditional(bp, x, enc, kstr, klen, cb, u);
}

int PEM_write_bio_PrivateKey_traditional(BIO *bp, EVP_PKEY *x,
                                         const EVP_CIPHER *enc,
                                         unsigned char *kstr, int klen,
                                         pem_password_cb *cb, void *u)
{
    char pem_str[80];
    BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
    return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
                              pem_str, bp, x, enc, kstr, klen, cb, u);
}

EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
{
    EVP_PKEY *ret = NULL;
    OSSL_STORE_CTX *ctx = NULL;
    OSSL_STORE_INFO *info = NULL;

    if ((ctx = ossl_store_attach_pem_bio(bp, UI_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) {
            ret = OSSL_STORE_INFO_get1_PARAMS(info);
            break;
        }
        OSSL_STORE_INFO_free(info);
    }

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

 err:
    ossl_store_detach_pem_bio(ctx);
    OSSL_STORE_INFO_free(info);
    return ret;
}

int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x)
{
    char pem_str[80];
    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, bp, x, NULL, NULL, 0, 0, NULL);
}

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

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

int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
                         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_pem_bio(bp, ui_method, u)) == 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);
    }

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

 err:
    ossl_store_detach_pem_bio(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	/*
6ec5fce2	2	* Copyright 1995-2018 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	*/
	9
	10	#include <stdio.h>
b39fc560	11	#include "internal/cryptlib.h"
1241126a DSH	12	#include <openssl/buffer.h>
	13	#include <openssl/objects.h>
	14	#include <openssl/evp.h>
1241126a DSH	15	#include <openssl/x509.h>
	16	#include <openssl/pkcs12.h>
	17	#include <openssl/pem.h>
3c27208f RS	18	#include <openssl/engine.h>
3c27208f RS	19	#include <openssl/dh.h>
1427d33c RL	20	#include <openssl/store.h>
	21	#include <openssl/ui.h>
	22	#include "crypto/store.h"
25f2138b DMSP	23	#include "crypto/asn1.h"
25f2138b DMSP	24	#include "crypto/evp.h"
1241126a	25
e4263314	26	int pem_check_suffix(const char pem_str, const char suffix);
1241126a	27
0f113f3e MC	28	EVP_PKEY PEM_read_bio_PrivateKey(BIO bp, EVP_PKEY *x, pem_password_cb cb,
	29	void *u)
	30	{
0f113f3e	31	EVP_PKEY *ret = NULL;
1427d33c RL	32	OSSL_STORE_CTX *ctx = NULL;
	33	OSSL_STORE_INFO *info = NULL;
	34	UI_METHOD *ui_method = NULL;
1241126a	35
1427d33c	36	if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
0f113f3e	37	return NULL;
1427d33c RL	38
	39	if ((ctx = ossl_store_attach_pem_bio(bp, ui_method, u)) == NULL)
	40	goto err;
	41	#ifndef OPENSSL_NO_SECURE_HEAP
	42	{
	43	int on = 1;
	44	if (!OSSL_STORE_ctrl(ctx, OSSL_STORE_C_USE_SECMEM, &on))
0f113f3e	45	goto err;
1427d33c RL	46	}
	47	#endif
	48
	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);
	52	break;
0f113f3e	53	}
1427d33c	54	OSSL_STORE_INFO_free(info);
0f113f3e	55	}
1427d33c RL	56
	57	if (ret != NULL && x != NULL)
	58	*x = ret;
	59
0f113f3e	60	err:
1427d33c RL	61	ossl_store_detach_pem_bio(ctx);
	62	UI_destroy_method(ui_method);
	63	OSSL_STORE_INFO_free(info);
26a7d938	64	return ret;
0f113f3e	65	}
1241126a	66
e4263314	67	int PEM_write_bio_PrivateKey(BIO bp, EVP_PKEY x, const EVP_CIPHER *enc,
0f113f3e MC	68	unsigned char *kstr, int klen,
	69	pem_password_cb cb, void u)
	70	{
05dba815	71	if (x->ameth == NULL \|\| x->ameth->priv_encode != NULL)
0f113f3e MC	72	return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
0f113f3e MC	73	(char *)kstr, klen, cb, u);
05dba815 DSH	74	return PEM_write_bio_PrivateKey_traditional(bp, x, enc, kstr, klen, cb, u);
05dba815 DSH	75	}
e4263314	76
05dba815 DSH	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)
	81	{
	82	char pem_str[80];
0f113f3e MC	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);
	86	}
e4263314	87
3e4585c8	88	EVP_PKEY PEM_read_bio_Parameters(BIO bp, EVP_PKEY **x)
0f113f3e	89	{
0f113f3e	90	EVP_PKEY *ret = NULL;
1427d33c RL	91	OSSL_STORE_CTX *ctx = NULL;
1427d33c RL	92	OSSL_STORE_INFO *info = NULL;
db98bbc1	93
1427d33c RL	94	if ((ctx = ossl_store_attach_pem_bio(bp, UI_null(), NULL)) == NULL)
1427d33c RL	95	goto err;
db98bbc1	96
1427d33c RL	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);
	100	break;
0f113f3e	101	}
1427d33c	102	OSSL_STORE_INFO_free(info);
0f113f3e	103	}
1427d33c RL	104
	105	if (ret != NULL && x != NULL)
	106	*x = ret;
	107
0f113f3e	108	err:
1427d33c RL	109	ossl_store_detach_pem_bio(ctx);
1427d33c RL	110	OSSL_STORE_INFO_free(info);
26a7d938	111	return ret;
0f113f3e	112	}
db98bbc1	113
3e4585c8	114	int PEM_write_bio_Parameters(BIO bp, EVP_PKEY x)
0f113f3e MC	115	{
	116	char pem_str[80];
	117	if (!x->ameth \|\| !x->ameth->param_encode)
	118	return 0;
db98bbc1	119
0f113f3e MC	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);
	123	}
e4263314	124
4b618848	125	#ifndef OPENSSL_NO_STDIO
0f113f3e MC	126	EVP_PKEY PEM_read_PrivateKey(FILE fp, EVP_PKEY *x, pem_password_cb cb,
	127	void *u)
	128	{
	129	BIO *b;
	130	EVP_PKEY *ret;
1241126a	131
0f113f3e MC	132	if ((b = BIO_new(BIO_s_file())) == NULL) {
0f113f3e MC	133	PEMerr(PEM_F_PEM_READ_PRIVATEKEY, ERR_R_BUF_LIB);
26a7d938	134	return 0;
0f113f3e MC	135	}
	136	BIO_set_fp(b, fp, BIO_NOCLOSE);
	137	ret = PEM_read_bio_PrivateKey(b, x, cb, u);
	138	BIO_free(b);
26a7d938	139	return ret;
0f113f3e	140	}
e4263314 DSH	141
e4263314 DSH	142	int PEM_write_PrivateKey(FILE fp, EVP_PKEY x, const EVP_CIPHER *enc,
0f113f3e MC	143	unsigned char *kstr, int klen,
	144	pem_password_cb cb, void u)
	145	{
	146	BIO *b;
	147	int ret;
e4263314	148
0f113f3e MC	149	if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
	150	PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB);
	151	return 0;
	152	}
	153	ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
	154	BIO_free(b);
	155	return ret;
	156	}
e4263314	157
1241126a	158	#endif
2ca873e8 DSH	159
	160	#ifndef OPENSSL_NO_DH
	161
	162	/* Transparently read in PKCS#3 or X9.42 DH parameters */
	163
	164	DH PEM_read_bio_DHparams(BIO bp, DH *x, pem_password_cb cb, void *u)
0f113f3e	165	{
0f113f3e	166	DH *ret = NULL;
1427d33c RL	167	EVP_PKEY *pkey = NULL;
	168	OSSL_STORE_CTX *ctx = NULL;
	169	OSSL_STORE_INFO *info = NULL;
	170	UI_METHOD *ui_method = NULL;
2ca873e8	171
1427d33c	172	if ((ui_method = UI_UTIL_wrap_read_pem_callback(cb, 0)) == NULL)
0f113f3e	173	return NULL;
2ca873e8	174
1427d33c RL	175	if ((ctx = ossl_store_attach_pem_bio(bp, ui_method, u)) == NULL)
	176	goto err;
	177
	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);
	184	break;
	185	}
	186	}
	187	OSSL_STORE_INFO_free(info);
	188	}
2ca873e8	189
1427d33c RL	190	if (ret != NULL && x != NULL)
	191	*x = ret;
	192
	193	err:
	194	ossl_store_detach_pem_bio(ctx);
	195	UI_destroy_method(ui_method);
	196	OSSL_STORE_INFO_free(info);
0f113f3e MC	197	return ret;
0f113f3e MC	198	}
2ca873e8	199
0f113f3e	200	# ifndef OPENSSL_NO_STDIO
2ca873e8	201	DH PEM_read_DHparams(FILE fp, DH *x, pem_password_cb cb, void *u)
0f113f3e MC	202	{
	203	BIO *b;
	204	DH *ret;
2ca873e8	205
0f113f3e MC	206	if ((b = BIO_new(BIO_s_file())) == NULL) {
0f113f3e MC	207	PEMerr(PEM_F_PEM_READ_DHPARAMS, ERR_R_BUF_LIB);
26a7d938	208	return 0;
0f113f3e MC	209	}
	210	BIO_set_fp(b, fp, BIO_NOCLOSE);
	211	ret = PEM_read_bio_DHparams(b, x, cb, u);
	212	BIO_free(b);
26a7d938	213	return ret;
0f113f3e MC	214	}
0f113f3e MC	215	# endif
2ca873e8 DSH	216
2ca873e8 DSH	217	#endif