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Diffstat (limited to 'Utilities/cmlibarchive/libarchive/archive_cryptor_private.h')
| -rw-r--r-- | Utilities/cmlibarchive/libarchive/archive_cryptor_private.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/Utilities/cmlibarchive/libarchive/archive_cryptor_private.h b/Utilities/cmlibarchive/libarchive/archive_cryptor_private.h new file mode 100644 index 0000000..9a96aee --- /dev/null +++ b/Utilities/cmlibarchive/libarchive/archive_cryptor_private.h @@ -0,0 +1,152 @@ +/*- +* Copyright (c) 2014 Michihiro NAKAJIMA +* All rights reserved. +* +* 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 above 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. +* +* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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(S) 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. +*/ + +#ifndef __LIBARCHIVE_BUILD +#error This header is only to be used internally to libarchive. +#endif + +#ifndef ARCHIVE_CRYPTOR_PRIVATE_H_INCLUDED +#define ARCHIVE_CRYPTOR_PRIVATE_H_INCLUDED + +#ifdef __APPLE__ +# include <AvailabilityMacros.h> +# if MAC_OS_X_VERSION_MAX_ALLOWED >= 1080 +# define ARCHIVE_CRYPTOR_USE_Apple_CommonCrypto +# endif +#endif + +#ifdef ARCHIVE_CRYPTOR_USE_Apple_CommonCrypto +#include <CommonCrypto/CommonCryptor.h> +#include <CommonCrypto/CommonKeyDerivation.h> +#define AES_BLOCK_SIZE 16 +#define AES_MAX_KEY_SIZE kCCKeySizeAES256 + +typedef struct { + CCCryptorRef ctx; + uint8_t key[AES_MAX_KEY_SIZE]; + unsigned key_len; + uint8_t nonce[AES_BLOCK_SIZE]; + uint8_t encr_buf[AES_BLOCK_SIZE]; + unsigned encr_pos; +} archive_crypto_ctx; + +#elif defined(_WIN32) && !defined(__CYGWIN__) && defined(HAVE_BCRYPT_H) +#include <Bcrypt.h> + +/* Common in other bcrypt implementations, but missing from VS2008. */ +#ifndef BCRYPT_SUCCESS +#define BCRYPT_SUCCESS(r) ((NTSTATUS)(r) == STATUS_SUCCESS) +#endif + +#define AES_MAX_KEY_SIZE 32 +#define AES_BLOCK_SIZE 16 +typedef struct { + BCRYPT_ALG_HANDLE hAlg; + BCRYPT_KEY_HANDLE hKey; + PBYTE keyObj; + DWORD keyObj_len; + uint8_t nonce[AES_BLOCK_SIZE]; + uint8_t encr_buf[AES_BLOCK_SIZE]; + unsigned encr_pos; +} archive_crypto_ctx; + +#elif defined(HAVE_LIBNETTLE) +#if defined(HAVE_NETTLE_PBKDF2_H) +#include <nettle/pbkdf2.h> +#endif +#include <nettle/aes.h> + +typedef struct { + struct aes_ctx ctx; + uint8_t key[AES_MAX_KEY_SIZE]; + unsigned key_len; + uint8_t nonce[AES_BLOCK_SIZE]; + uint8_t encr_buf[AES_BLOCK_SIZE]; + unsigned encr_pos; +} archive_crypto_ctx; + +#elif defined(HAVE_LIBCRYPTO) +#include <openssl/evp.h> +#define AES_BLOCK_SIZE 16 +#define AES_MAX_KEY_SIZE 32 + +typedef struct { + EVP_CIPHER_CTX ctx; + const EVP_CIPHER *type; + uint8_t key[AES_MAX_KEY_SIZE]; + unsigned key_len; + uint8_t nonce[AES_BLOCK_SIZE]; + uint8_t encr_buf[AES_BLOCK_SIZE]; + unsigned encr_pos; +} archive_crypto_ctx; + +#else + +#define AES_BLOCK_SIZE 16 +#define AES_MAX_KEY_SIZE 32 +typedef int archive_crypto_ctx; + +#endif + +/* defines */ +#define archive_pbkdf2_sha1(pw, pw_len, salt, salt_len, rounds, dk, dk_len)\ + __archive_cryptor.pbkdf2sha1(pw, pw_len, salt, salt_len, rounds, dk, dk_len) + +#define archive_decrypto_aes_ctr_init(ctx, key, key_len) \ + __archive_cryptor.decrypto_aes_ctr_init(ctx, key, key_len) +#define archive_decrypto_aes_ctr_update(ctx, in, in_len, out, out_len) \ + __archive_cryptor.decrypto_aes_ctr_update(ctx, in, in_len, out, out_len) +#define archive_decrypto_aes_ctr_release(ctx) \ + __archive_cryptor.decrypto_aes_ctr_release(ctx) + +#define archive_encrypto_aes_ctr_init(ctx, key, key_len) \ + __archive_cryptor.encrypto_aes_ctr_init(ctx, key, key_len) +#define archive_encrypto_aes_ctr_update(ctx, in, in_len, out, out_len) \ + __archive_cryptor.encrypto_aes_ctr_update(ctx, in, in_len, out, out_len) +#define archive_encrypto_aes_ctr_release(ctx) \ + __archive_cryptor.encrypto_aes_ctr_release(ctx) + +/* Minimal interface to cryptographic functionality for internal use in + * libarchive */ +struct archive_cryptor +{ + /* PKCS5 PBKDF2 HMAC-SHA1 */ + int (*pbkdf2sha1)(const char *pw, size_t pw_len, const uint8_t *salt, + size_t salt_len, unsigned rounds, uint8_t *derived_key, + size_t derived_key_len); + /* AES CTR mode(little endian version) */ + int (*decrypto_aes_ctr_init)(archive_crypto_ctx *, const uint8_t *, size_t); + int (*decrypto_aes_ctr_update)(archive_crypto_ctx *, const uint8_t *, + size_t, uint8_t *, size_t *); + int (*decrypto_aes_ctr_release)(archive_crypto_ctx *); + int (*encrypto_aes_ctr_init)(archive_crypto_ctx *, const uint8_t *, size_t); + int (*encrypto_aes_ctr_update)(archive_crypto_ctx *, const uint8_t *, + size_t, uint8_t *, size_t *); + int (*encrypto_aes_ctr_release)(archive_crypto_ctx *); +}; + +extern const struct archive_cryptor __archive_cryptor; + +#endif |