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62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*************************** sha-private.h ***************************/
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/*
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https://github.com/Yubico/yubico-c-client
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Copyright (c) 2006-2013 Yubico AB
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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
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met:
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* 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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* Redistributions in binary form must reproduce the above
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copyright notice, this list of conditions and the following
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disclaimer in the documentation and/or other materials provided
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with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(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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/********************** See RFC 4634 for details *********************/
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#ifndef _SHA_PRIVATE__H
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#define _SHA_PRIVATE__H
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/*
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* These definitions are defined in FIPS-180-2, section 4.1.
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* Ch() and Maj() are defined identically in sections 4.1.1,
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* 4.1.2 and 4.1.3.
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*
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* The definitions used in FIPS-180-2 are as follows:
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*/
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#ifndef USE_MODIFIED_MACROS
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#define SHA_Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z)))
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#define SHA_Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
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#else /* USE_MODIFIED_MACROS */
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/*
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* The following definitions are equivalent and potentially faster.
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*/
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#define SHA_Ch(x, y, z) (((x) & ((y) ^ (z))) ^ (z))
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#define SHA_Maj(x, y, z) (((x) & ((y) | (z))) | ((y) & (z)))
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#endif /* USE_MODIFIED_MACROS */
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#define SHA_Parity(x, y, z) ((x) ^ (y) ^ (z))
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#endif /* _SHA_PRIVATE__H */
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