mirror of
https://github.com/0xROOTPLS/Fritter
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0xROOTPLS
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/**
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BSD 3-Clause License
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Copyright (c) 2019, TheWover, Odzhan. All rights reserved.
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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 are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of the copyright holder nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef ENCRYPT_H
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#define ENCRYPT_H
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#include <stdint.h>
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#include <stddef.h>
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#include <stdio.h>
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#ifndef ROTR32
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#define ROTR32(v,n)(((v)>>(n))|((v)<<(32-(n))))
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#endif
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#ifndef ROTL32
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#define ROTL32(v,n)(((v)<<(n))|((v)>>(32-(n))))
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#endif
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// Custom ARX block cipher — 128-bit block, 128-bit key
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// Change these to alter the cipher signature
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#define ENCRYPT block_cipher
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#ifndef CIPHER_ROUNDS
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#define CIPHER_ROUNDS 20
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#endif
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// Rotation schedule for the permutation — 6 values per round
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#ifndef CIPHER_R0
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#define CIPHER_R0 5
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#endif
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#ifndef CIPHER_R1
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#define CIPHER_R1 8
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#endif
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#ifndef CIPHER_R2
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#define CIPHER_R2 13
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#endif
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#ifndef CIPHER_R3
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#define CIPHER_R3 7
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#endif
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#ifndef CIPHER_R4
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#define CIPHER_R4 22
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#endif
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#ifndef CIPHER_R5
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#define CIPHER_R5 11
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#endif
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#define CIPHER_BLK_LEN (128/8)
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#define CIPHER_KEY_LEN (128/8)
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#ifdef __cplusplus
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extern "C" {
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#endif
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void fritter_encrypt(void *mk, void *ctr, void *data, uint32_t len);
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#define fritter_decrypt(mk,ctr,data,len) fritter_encrypt(mk,ctr,data,len)
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#ifdef __cplusplus
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}
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#endif
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#endif
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