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81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/* hash.h Aug 2011
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*
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* Groestl implementation for different versions.
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* Author: Krystian Matusiewicz, Günther A. Roland, Martin Schläffer
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*
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* This code is placed in the public domain
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*/
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#ifndef __grsn_h
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#define __grsn_h
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#include <stdio.h>
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#include <stdlib.h>
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#include "brg_endian.h"
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#define NEED_UINT_64T
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#include "brg_types.h"
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#ifndef grsnLENGTH
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#define grsnLENGTH 512
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#endif
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/* some sizes (number of bytes) */
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#define grsnROWS 8
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#define grsnLENGTHFIELDLEN grsnROWS
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#define grsnCOLS512 8
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#define grsnCOLS1024 16
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#define grsnSIZE512 (grsnROWS*grsnCOLS512)
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#define grsnSIZE1024 (grsnROWS*grsnCOLS1024)
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#define grsnROUNDS512 10
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#define grsnROUNDS1024 14
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#if grsnLENGTH<=256
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#define grsnCOLS grsnCOLS512
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#define grsnSIZE grsnSIZE512
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#define grsnROUNDS grsnROUNDS512
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#else
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#define grsnCOLS grsnCOLS1024
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#define grsnSIZE grsnSIZE1024
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#define grsnROUNDS grsnROUNDS1024
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#endif
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#define ROTL64(a,n) ((((a)<<(n))|((a)>>(64-(n))))&li_64(ffffffffffffffff))
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#if (PLATFORM_BYTE_ORDER == IS_BIG_ENDIAN)
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#define EXT_BYTE(var,n) ((u8)((u64)(var) >> (8*(7-(n)))))
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#define U64BIG(a) (a)
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#endif /* IS_BIG_ENDIAN */
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#if (PLATFORM_BYTE_ORDER == IS_LITTLE_ENDIAN)
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#define EXT_BYTE(var,n) ((u8)((u64)(var) >> (8*n)))
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#define U64BIG(a) \
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((ROTL64(a, 8) & li_64(000000FF000000FF)) | \
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(ROTL64(a,24) & li_64(0000FF000000FF00)) | \
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(ROTL64(a,40) & li_64(00FF000000FF0000)) | \
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(ROTL64(a,56) & li_64(FF000000FF000000)))
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#endif /* IS_LITTLE_ENDIAN */
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typedef enum { LONG, SHORT } Var;
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/* NIST API begin */
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typedef unsigned char BitSequence;
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typedef unsigned long long DataLength;
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typedef struct {
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__attribute__ ((aligned (32))) u64 chaining[grsnSIZE/8]; /* actual state */
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__attribute__ ((aligned (32))) BitSequence buffer[grsnSIZE]; /* data buffer */
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u64 block_counter; /* message block counter */
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int buf_ptr; /* data buffer pointer */
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int bits_in_last_byte; /* no. of message bits in last byte of
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data buffer */
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int columns; /* no. of columns in state */
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int statesize; /* total no. of bytes in state */
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Var v; /* LONG or SHORT */
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} grsnState;
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void grsnInit(grsnState*);
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void grsnUpdate(grsnState*, const BitSequence*, DataLength);
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void grsnFinal(grsnState*, BitSequence*);
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#endif /* __hash_h */
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