mirror of
https://github.com/openssl/openssl.git
synced 2024-12-27 06:21:43 +08:00
274 lines
8.9 KiB
C
274 lines
8.9 KiB
C
/*
|
|
* Copyright 1995-2022 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/core_dispatch.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/encoder.h>
|
|
|
|
static int do_pk8pkey(BIO *bp, const EVP_PKEY *x, int isder,
|
|
int nid, const EVP_CIPHER *enc,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u,
|
|
const char *propq);
|
|
|
|
#ifndef OPENSSL_NO_STDIO
|
|
static int do_pk8pkey_fp(FILE *bp, const EVP_PKEY *x, int isder,
|
|
int nid, const EVP_CIPHER *enc,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u,
|
|
const char *propq);
|
|
#endif
|
|
/*
|
|
* These functions write a private key in PKCS#8 format: it is a "drop in"
|
|
* replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc'
|
|
* is NULL then it uses the unencrypted private key form. The 'nid' versions
|
|
* uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0.
|
|
*/
|
|
|
|
int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, const EVP_PKEY *x, int nid,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u)
|
|
{
|
|
return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u, NULL);
|
|
}
|
|
|
|
int PEM_write_bio_PKCS8PrivateKey(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u)
|
|
{
|
|
return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u, NULL);
|
|
}
|
|
|
|
int i2d_PKCS8PrivateKey_bio(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u)
|
|
{
|
|
return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u, NULL);
|
|
}
|
|
|
|
int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, const EVP_PKEY *x, int nid,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u)
|
|
{
|
|
return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u, NULL);
|
|
}
|
|
|
|
static int do_pk8pkey(BIO *bp, const EVP_PKEY *x, int isder, int nid,
|
|
const EVP_CIPHER *enc, const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u, const char *propq)
|
|
{
|
|
int ret = 0;
|
|
const char *outtype = isder ? "DER" : "PEM";
|
|
OSSL_ENCODER_CTX *ctx =
|
|
OSSL_ENCODER_CTX_new_for_pkey(x, OSSL_KEYMGMT_SELECT_ALL,
|
|
outtype, "PrivateKeyInfo", propq);
|
|
|
|
if (ctx == NULL)
|
|
return 0;
|
|
|
|
/*
|
|
* If no keystring or callback is set, OpenSSL traditionally uses the
|
|
* user's cb argument as a password string, or if that's NULL, it falls
|
|
* back on PEM_def_callback().
|
|
*/
|
|
if (kstr == NULL && cb == NULL) {
|
|
if (u != NULL) {
|
|
kstr = u;
|
|
klen = strlen(u);
|
|
} else {
|
|
cb = PEM_def_callback;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* NOTE: There is no attempt to do a EVP_CIPHER_fetch() using the nid,
|
|
* since the nid is a PBE algorithm which can't be fetched currently.
|
|
* (e.g. NID_pbe_WithSHA1And2_Key_TripleDES_CBC). Just use the legacy
|
|
* path if the NID is passed.
|
|
*/
|
|
if (nid == -1 && OSSL_ENCODER_CTX_get_num_encoders(ctx) != 0) {
|
|
ret = 1;
|
|
if (enc != NULL) {
|
|
ret = 0;
|
|
if (OSSL_ENCODER_CTX_set_cipher(ctx, EVP_CIPHER_get0_name(enc),
|
|
NULL)) {
|
|
const unsigned char *ukstr = (const unsigned char *)kstr;
|
|
|
|
/*
|
|
* Try to pass the passphrase if one was given, or the
|
|
* passphrase callback if one was given. If none of them
|
|
* are given and that's wrong, we rely on the _to_bio()
|
|
* call to generate errors.
|
|
*/
|
|
ret = 1;
|
|
if (kstr != NULL
|
|
&& !OSSL_ENCODER_CTX_set_passphrase(ctx, ukstr, klen))
|
|
ret = 0;
|
|
else if (cb != NULL
|
|
&& !OSSL_ENCODER_CTX_set_pem_password_cb(ctx, cb, u))
|
|
ret = 0;
|
|
}
|
|
}
|
|
ret = ret && OSSL_ENCODER_to_bio(ctx, bp);
|
|
} else {
|
|
X509_SIG *p8;
|
|
PKCS8_PRIV_KEY_INFO *p8inf;
|
|
char buf[PEM_BUFSIZE];
|
|
|
|
ret = 0;
|
|
if ((p8inf = EVP_PKEY2PKCS8(x)) == NULL) {
|
|
ERR_raise(ERR_LIB_PEM, PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
|
|
goto legacy_end;
|
|
}
|
|
if (enc || (nid != -1)) {
|
|
if (kstr == NULL) {
|
|
klen = cb(buf, PEM_BUFSIZE, 1, u);
|
|
if (klen < 0) {
|
|
ERR_raise(ERR_LIB_PEM, PEM_R_READ_KEY);
|
|
goto legacy_end;
|
|
}
|
|
|
|
kstr = buf;
|
|
}
|
|
p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf);
|
|
if (kstr == buf)
|
|
OPENSSL_cleanse(buf, klen);
|
|
if (p8 == NULL)
|
|
goto legacy_end;
|
|
if (isder)
|
|
ret = i2d_PKCS8_bio(bp, p8);
|
|
else
|
|
ret = PEM_write_bio_PKCS8(bp, p8);
|
|
X509_SIG_free(p8);
|
|
} else {
|
|
if (isder)
|
|
ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
|
|
else
|
|
ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf);
|
|
}
|
|
legacy_end:
|
|
PKCS8_PRIV_KEY_INFO_free(p8inf);
|
|
}
|
|
OSSL_ENCODER_CTX_free(ctx);
|
|
return ret;
|
|
}
|
|
|
|
EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
|
|
void *u)
|
|
{
|
|
PKCS8_PRIV_KEY_INFO *p8inf = NULL;
|
|
X509_SIG *p8 = NULL;
|
|
int klen;
|
|
EVP_PKEY *ret;
|
|
char psbuf[PEM_BUFSIZE];
|
|
|
|
p8 = d2i_PKCS8_bio(bp, NULL);
|
|
if (p8 == NULL)
|
|
return NULL;
|
|
if (cb != NULL)
|
|
klen = cb(psbuf, PEM_BUFSIZE, 0, u);
|
|
else
|
|
klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u);
|
|
if (klen < 0) {
|
|
ERR_raise(ERR_LIB_PEM, PEM_R_BAD_PASSWORD_READ);
|
|
X509_SIG_free(p8);
|
|
return NULL;
|
|
}
|
|
p8inf = PKCS8_decrypt(p8, psbuf, klen);
|
|
X509_SIG_free(p8);
|
|
OPENSSL_cleanse(psbuf, klen);
|
|
if (p8inf == NULL)
|
|
return NULL;
|
|
ret = EVP_PKCS82PKEY(p8inf);
|
|
PKCS8_PRIV_KEY_INFO_free(p8inf);
|
|
if (!ret)
|
|
return NULL;
|
|
if (x != NULL) {
|
|
EVP_PKEY_free(*x);
|
|
*x = ret;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
#ifndef OPENSSL_NO_STDIO
|
|
|
|
int i2d_PKCS8PrivateKey_fp(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u)
|
|
{
|
|
return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u, NULL);
|
|
}
|
|
|
|
int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, const EVP_PKEY *x, int nid,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u)
|
|
{
|
|
return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u, NULL);
|
|
}
|
|
|
|
int PEM_write_PKCS8PrivateKey_nid(FILE *fp, const EVP_PKEY *x, int nid,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u)
|
|
{
|
|
return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u, NULL);
|
|
}
|
|
|
|
int PEM_write_PKCS8PrivateKey(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc,
|
|
const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u)
|
|
{
|
|
return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u, NULL);
|
|
}
|
|
|
|
static int do_pk8pkey_fp(FILE *fp, const EVP_PKEY *x, int isder, int nid,
|
|
const EVP_CIPHER *enc, const char *kstr, int klen,
|
|
pem_password_cb *cb, void *u, const char *propq)
|
|
{
|
|
BIO *bp;
|
|
int ret;
|
|
|
|
if ((bp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
|
|
ERR_raise(ERR_LIB_PEM, ERR_R_BUF_LIB);
|
|
return 0;
|
|
}
|
|
ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u, propq);
|
|
BIO_free(bp);
|
|
return ret;
|
|
}
|
|
|
|
EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
|
|
void *u)
|
|
{
|
|
BIO *bp;
|
|
EVP_PKEY *ret;
|
|
|
|
if ((bp = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) {
|
|
ERR_raise(ERR_LIB_PEM, ERR_R_BUF_LIB);
|
|
return NULL;
|
|
}
|
|
ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u);
|
|
BIO_free(bp);
|
|
return ret;
|
|
}
|
|
|
|
#endif
|
|
|
|
IMPLEMENT_PEM_rw(PKCS8, X509_SIG, PEM_STRING_PKCS8, X509_SIG)
|
|
|
|
|
|
IMPLEMENT_PEM_rw(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF,
|
|
PKCS8_PRIV_KEY_INFO)
|