7a29c7be1e
Add optional ability to change key length at runtime via cli option. Include key length property in archive header. Fix header HMAC to include salt, nonce and key length properties. Retain backward compatibility to handle older format archives. Fix compilation of AES ASM code.
61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/*
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* This file is a part of Pcompress, a chunked parallel multi-
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* algorithm lossless compression and decompression program.
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*
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* Copyright (C) 2012 Moinak Ghosh. All rights reserved.
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* Use is subject to license terms.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* moinakg@belenix.org, http://moinakg.wordpress.com/
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*
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* This program includes partly-modified public domain source
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* code from the LZMA SDK: http://www.7-zip.org/sdk.html
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*/
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#ifndef _AES_CRYPTO_H
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#define _AES_CRYPTO_H
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#include <utils.h>
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#include <openssl/aes.h>
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#ifdef _USE_PBK
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#include <openssl/evp.h>
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#endif
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#include <openssl/opensslv.h>
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#include <crypto_utils.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define PBE_ROUNDS 1000
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typedef struct {
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uint64_t nonce;
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AES_KEY key;
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int keylen;
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uchar_t pkey[MAX_KEYLEN];
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} aes_ctx_t;
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int aes_init(aes_ctx_t *ctx, uchar_t *salt, int saltlen, uchar_t *pwd, int pwd_len,
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uint64_t nonce, int enc);
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int aes_encrypt(aes_ctx_t *ctx, uchar_t *plaintext, uchar_t *ciphertext, uint64_t len, uint64_t id);
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int aes_decrypt(aes_ctx_t *ctx, uchar_t *ciphertext, uchar_t *plaintext, uint64_t len, uint64_t id);
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uint64_t aes_nonce(aes_ctx_t *ctx);
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void aes_clean_pkey(aes_ctx_t *ctx);
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void aes_cleanup(aes_ctx_t *ctx);
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void aes_module_init(processor_info_t *pc);
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#ifdef __cplusplus
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}
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#endif
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#endif
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