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Simple HTTP client with HTTP/1.1, HTTP/2, and HTTP/3 support
Security advisory:
This version has known vulnerabilities.
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Files
c_src/boringssl/crypto/pem/pem_pkey.cc
// Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <openssl/pem.h>
#include <stdio.h>
#include <string.h>
#include <openssl/dh.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/mem.h>
#include <openssl/obj.h>
#include <openssl/pkcs8.h>
#include <openssl/rand.h>
#include <openssl/x509.h>
EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb,
void *u) {
char *nm = nullptr;
const unsigned char *p = nullptr;
unsigned char *data = nullptr;
long len;
EVP_PKEY *ret = nullptr;
if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u)) {
return nullptr;
}
p = data;
if (strcmp(nm, PEM_STRING_PKCS8INF) == 0) {
PKCS8_PRIV_KEY_INFO *p8inf;
p8inf = d2i_PKCS8_PRIV_KEY_INFO(nullptr, &p, len);
if (!p8inf) {
goto p8err;
}
ret = EVP_PKCS82PKEY(p8inf);
if (x) {
if (*x) {
EVP_PKEY_free((EVP_PKEY *)*x);
}
*x = ret;
}
PKCS8_PRIV_KEY_INFO_free(p8inf);
} else if (strcmp(nm, PEM_STRING_PKCS8) == 0) {
PKCS8_PRIV_KEY_INFO *p8inf;
X509_SIG *p8;
int pass_len;
char psbuf[PEM_BUFSIZE];
p8 = d2i_X509_SIG(nullptr, &p, len);
if (!p8) {
goto p8err;
}
pass_len = 0;
if (!cb) {
cb = PEM_def_callback;
}
pass_len = cb(psbuf, PEM_BUFSIZE, 0, u);
if (pass_len < 0) {
OPENSSL_PUT_ERROR(PEM, PEM_R_BAD_PASSWORD_READ);
X509_SIG_free(p8);
goto err;
}
p8inf = PKCS8_decrypt(p8, psbuf, pass_len);
X509_SIG_free(p8);
OPENSSL_cleanse(psbuf, pass_len);
if (!p8inf) {
goto p8err;
}
ret = EVP_PKCS82PKEY(p8inf);
if (x) {
if (*x) {
EVP_PKEY_free((EVP_PKEY *)*x);
}
*x = ret;
}
PKCS8_PRIV_KEY_INFO_free(p8inf);
} else if (strcmp(nm, PEM_STRING_RSA) == 0) {
// TODO(davidben): d2i_PrivateKey parses PKCS#8 along with the
// standalone format. This and the cases below probably should not
// accept PKCS#8.
ret = d2i_PrivateKey(EVP_PKEY_RSA, x, &p, len);
} else if (strcmp(nm, PEM_STRING_EC) == 0) {
ret = d2i_PrivateKey(EVP_PKEY_EC, x, &p, len);
} else if (strcmp(nm, PEM_STRING_DSA) == 0) {
ret = d2i_PrivateKey(EVP_PKEY_DSA, x, &p, len);
}
p8err:
if (ret == nullptr) {
OPENSSL_PUT_ERROR(PEM, ERR_R_ASN1_LIB);
}
err:
OPENSSL_free(nm);
OPENSSL_free(data);
return ret;
}
int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
const unsigned char *pass, int pass_len,
pem_password_cb *cb, void *u) {
return PEM_write_bio_PKCS8PrivateKey(bp, x, enc, (const char *)pass, pass_len,
cb, u);
}
EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb,
void *u) {
BIO *b = BIO_new_fp(fp, BIO_NOCLOSE);
if (b == nullptr) {
OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB);
return nullptr;
}
EVP_PKEY *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,
const unsigned char *pass, int pass_len,
pem_password_cb *cb, void *u) {
BIO *b = BIO_new_fp(fp, BIO_NOCLOSE);
if (b == nullptr) {
OPENSSL_PUT_ERROR(PEM, ERR_R_BUF_LIB);
return 0;
}
int ret = PEM_write_bio_PrivateKey(b, x, enc, pass, pass_len, cb, u);
BIO_free(b);
return ret;
}