X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fpem%2Fpem_info.c;h=f90cb4465096c0c69300fefd7a50da0040153d78;hb=2459dc1bd09468c83f1767b6b6a1ddc45ba60d36;hp=0e7338bd1df59cb52873070ad04ad521119f9339;hpb=222561fe8ef510f336417a666f69f81ddc9b8fe4;p=oweals%2Fopenssl.git diff --git a/crypto/pem/pem_info.c b/crypto/pem/pem_info.c index 0e7338bd1d..f90cb44650 100644 --- a/crypto/pem/pem_info.c +++ b/crypto/pem/pem_info.c @@ -1,74 +1,21 @@ -/* crypto/pem/pem_info.c */ -/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved. * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] + * Licensed under the OpenSSL license (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 -#include "cryptlib.h" +#include "internal/cryptlib.h" #include #include #include #include #include -#ifndef OPENSSL_NO_RSA -# include -#endif -#ifndef OPENSSL_NO_DSA -# include -#endif +#include +#include #ifndef OPENSSL_NO_STDIO STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, @@ -79,12 +26,12 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read(FILE *fp, STACK_OF(X509_INFO) *sk, if ((b = BIO_new(BIO_s_file())) == NULL) { PEMerr(PEM_F_PEM_X509_INFO_READ, ERR_R_BUF_LIB); - return (0); + return 0; } BIO_set_fp(b, fp, BIO_NOCLOSE); ret = PEM_X509_INFO_read_bio(b, sk, cb, u); BIO_free(b); - return (ret); + return ret; } #endif @@ -172,6 +119,8 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, xi->enc_len = 0; xi->x_pkey = X509_PKEY_new(); + if (xi->x_pkey == NULL) + goto err; ptype = EVP_PKEY_RSA; pp = &xi->x_pkey->dec_pkey; if ((int)strlen(header) > 10) /* assume encrypted */ @@ -193,6 +142,8 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, xi->enc_len = 0; xi->x_pkey = X509_PKEY_new(); + if (xi->x_pkey == NULL) + goto err; ptype = EVP_PKEY_DSA; pp = &xi->x_pkey->dec_pkey; if ((int)strlen(header) > 10) /* assume encrypted */ @@ -214,6 +165,8 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, xi->enc_len = 0; xi->x_pkey = X509_PKEY_new(); + if (xi->x_pkey == NULL) + goto err; ptype = EVP_PKEY_EC; pp = &xi->x_pkey->dec_pkey; if ((int)strlen(header) > 10) /* assume encrypted */ @@ -253,14 +206,11 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, } else { /* unknown */ } - if (name != NULL) - OPENSSL_free(name); - if (header != NULL) - OPENSSL_free(header); - if (data != NULL) - OPENSSL_free(data); + OPENSSL_free(name); name = NULL; + OPENSSL_free(header); header = NULL; + OPENSSL_free(data); data = NULL; } @@ -287,13 +237,10 @@ STACK_OF(X509_INFO) *PEM_X509_INFO_read_bio(BIO *bp, STACK_OF(X509_INFO) *sk, ret = NULL; } - if (name != NULL) - OPENSSL_free(name); - if (header != NULL) - OPENSSL_free(header); - if (data != NULL) - OPENSSL_free(data); - return (ret); + OPENSSL_free(name); + OPENSSL_free(header); + OPENSSL_free(data); + return ret; } /* A TJH addition */ @@ -301,7 +248,6 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, unsigned char *kstr, int klen, pem_password_cb *cb, void *u) { - EVP_CIPHER_CTX ctx; int i, ret = 0; unsigned char *data = NULL; const char *objstr = NULL; @@ -310,7 +256,13 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, if (enc != NULL) { objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc)); - if (objstr == NULL) { + if (objstr == NULL + /* + * Check "Proc-Type: 4,Encrypted\nDEK-Info: objstr,hex-iv\n" + * fits into buf + */ + || (strlen(objstr) + 23 + 2 * EVP_CIPHER_iv_length(enc) + 13) + > sizeof(buf)) { PEMerr(PEM_F_PEM_X509_INFO_WRITE_BIO, PEM_R_UNSUPPORTED_CIPHER); goto err; } @@ -345,12 +297,11 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, goto err; } - /* create the right magic header stuff */ - OPENSSL_assert(strlen(objstr) + 23 + 2 * enc->iv_len + 13 <= - sizeof buf); + /* Create the right magic header stuff */ buf[0] = '\0'; PEM_proc_type(buf, PEM_TYPE_ENCRYPTED); - PEM_dek_info(buf, objstr, enc->iv_len, (char *)iv); + PEM_dek_info(buf, objstr, EVP_CIPHER_iv_length(enc), + (char *)iv); /* use the normal code to write things out */ i = PEM_write_bio(bp, PEM_STRING_RSA, buf, data, i); @@ -361,7 +312,7 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, #ifndef OPENSSL_NO_RSA /* normal optionally encrypted stuff */ if (PEM_write_bio_RSAPrivateKey(bp, - xi->x_pkey->dec_pkey->pkey.rsa, + EVP_PKEY_get0_RSA(xi->x_pkey->dec_pkey), enc, kstr, klen, cb, u) <= 0) goto err; #endif @@ -381,7 +332,6 @@ int PEM_X509_INFO_write_bio(BIO *bp, X509_INFO *xi, EVP_CIPHER *enc, ret = 1; err: - OPENSSL_cleanse((char *)&ctx, sizeof(ctx)); OPENSSL_cleanse(buf, PEM_BUFSIZE); - return (ret); + return ret; }