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99 lines
3.1 KiB
99 lines
3.1 KiB
10 years ago
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/**
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* Header file for Blake2b's internal permutation in the form of a sponge.
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* This code is based on the original Blake2b's implementation provided by
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* Samuel Neves (https://blake2.net/)
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*
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* Author: The Lyra PHC team (http://www.lyra-kdf.net/) -- 2014.
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*
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* This software is hereby placed in the public domain.
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*
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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 OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SPONGEOLD_H_
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#define SPONGEOLD_H_
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#include <stdint.h>
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#if defined(__GNUC__)
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#define ALIGN __attribute__ ((aligned(32)))
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#elif defined(_MSC_VER)
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#define ALIGN __declspec(align(32))
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#else
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#define ALIGN
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#endif
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/*Blake2b IV Array*/
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static const uint64_t blake2b_IV[8] =
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{
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0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
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0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
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0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
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0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
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};
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/*Blake2b's rotation*/
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static inline uint64_t rotr64( const uint64_t w, const unsigned c ){
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return ( w >> c ) | ( w << ( 64 - c ) );
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}
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/*Blake2b's G function*/
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#define G(r,i,a,b,c,d) \
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do { \
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a = a + b; \
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d = rotr64(d ^ a, 32); \
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c = c + d; \
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b = rotr64(b ^ c, 24); \
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a = a + b; \
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d = rotr64(d ^ a, 16); \
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c = c + d; \
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b = rotr64(b ^ c, 63); \
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} while(0)
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/*One Round of the Blake2b's compression function*/
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#define ROUND_LYRA(r) \
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G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \
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G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \
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G(r,2,v[ 2],v[ 6],v[10],v[14]); \
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G(r,3,v[ 3],v[ 7],v[11],v[15]); \
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G(r,4,v[ 0],v[ 5],v[10],v[15]); \
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G(r,5,v[ 1],v[ 6],v[11],v[12]); \
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G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \
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G(r,7,v[ 3],v[ 4],v[ 9],v[14]);
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//---- Housekeeping
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void initStateO(uint64_t state[/*16*/]);
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//---- Squeezes
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void squeezeO(uint64_t *state, unsigned char *out, unsigned int len);
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void reducedSqueezeRow0O(uint64_t* state, uint64_t* row);
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//---- Absorbs
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void absorbBlockO(uint64_t *state, const uint64_t *in);
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void absorbBlockBlake2Safe(uint64_t *state, const uint64_t *in);
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//---- Duplexes
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void reducedDuplexRow1O(uint64_t *state, uint64_t *rowIn, uint64_t *rowOut);
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void reducedDuplexRowSetupO(uint64_t *state, uint64_t *rowIn, uint64_t *rowInOut, uint64_t *rowOut);
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void reducedDuplexRowO(uint64_t *state, uint64_t *rowIn, uint64_t *rowInOut, uint64_t *rowOut);
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//---- Misc
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void printArrayO(unsigned char *array, unsigned int size, char *name);
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////////////////////////////////////////////////////////////////////////////////////////////////
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#endif /* SPONGE_H_ */
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