mirror of https://github.com/PCSX2/pcsx2.git
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/*
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zip_crypto_commoncrypto.c -- CommonCrypto wrapper.
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Copyright (C) 2018-2022 Dieter Baron and Thomas Klausner
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This file is part of libzip, a library to manipulate ZIP archives.
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The authors can be contacted at <info@libzip.org>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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3. The names of the authors may not be used to endorse or promote
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products derived from this software without specific prior
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written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS
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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdlib.h>
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#include "zipint.h"
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#include "zip_crypto.h"
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#include <fcntl.h>
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#include <unistd.h>
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void
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_zip_crypto_aes_free(_zip_crypto_aes_t *aes) {
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if (aes == NULL) {
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return;
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}
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CCCryptorRelease(aes);
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}
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bool
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_zip_crypto_aes_encrypt_block(_zip_crypto_aes_t *aes, const zip_uint8_t *in, zip_uint8_t *out) {
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size_t len;
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CCCryptorUpdate(aes, in, ZIP_CRYPTO_AES_BLOCK_LENGTH, out, ZIP_CRYPTO_AES_BLOCK_LENGTH, &len);
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return true;
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}
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_zip_crypto_aes_t *
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_zip_crypto_aes_new(const zip_uint8_t *key, zip_uint16_t key_size, zip_error_t *error) {
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_zip_crypto_aes_t *aes;
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CCCryptorStatus ret;
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ret = CCCryptorCreate(kCCEncrypt, kCCAlgorithmAES, kCCOptionECBMode, key, key_size / 8, NULL, &aes);
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switch (ret) {
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case kCCSuccess:
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return aes;
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case kCCMemoryFailure:
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zip_error_set(error, ZIP_ER_MEMORY, 0);
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return NULL;
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case kCCParamError:
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zip_error_set(error, ZIP_ER_INVAL, 0);
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return NULL;
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default:
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zip_error_set(error, ZIP_ER_INTERNAL, 0);
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return NULL;
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}
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}
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void
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_zip_crypto_hmac_free(_zip_crypto_hmac_t *hmac) {
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if (hmac == NULL) {
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return;
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}
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_zip_crypto_clear(hmac, sizeof(*hmac));
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free(hmac);
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}
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_zip_crypto_hmac_t *
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_zip_crypto_hmac_new(const zip_uint8_t *secret, zip_uint64_t secret_length, zip_error_t *error) {
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_zip_crypto_hmac_t *hmac;
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if ((hmac = (_zip_crypto_hmac_t *)malloc(sizeof(*hmac))) == NULL) {
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zip_error_set(error, ZIP_ER_MEMORY, 0);
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return NULL;
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}
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CCHmacInit(hmac, kCCHmacAlgSHA1, secret, secret_length);
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return hmac;
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}
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