Mercurial > dropbear

view mycrypt_gf.h @ 0:d7da3b1e1540 libtomcrypt

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
put back the 0.95 makefile which was inadvertently merged over
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:21:40 +0000
parents
children
line wrap: on
line source


/* ---- GF(2^w) polynomial basis ---- */
#ifdef GF
#define   LSIZE    32   /* handle upto 1024-bit GF numbers */

typedef unsigned long gf_int[LSIZE];
typedef unsigned long *gf_intp;

extern void gf_copy(gf_intp a, gf_intp b);
extern void gf_zero(gf_intp a);
extern int gf_iszero(gf_intp a);
extern int gf_isone(gf_intp a);
extern int gf_deg(gf_intp a);

extern void gf_shl(gf_intp a, gf_intp b);
extern void gf_shr(gf_intp a, gf_intp b);
extern void gf_add(gf_intp a, gf_intp b, gf_intp c);
extern void gf_mul(gf_intp a, gf_intp b, gf_intp c);
extern void gf_div(gf_intp a, gf_intp b, gf_intp q, gf_intp r);

extern void gf_mod(gf_intp a, gf_intp m, gf_intp b);
extern void gf_mulmod(gf_intp a, gf_intp b, gf_intp m, gf_intp c);
extern void gf_invmod(gf_intp A, gf_intp M, gf_intp B);
extern void gf_sqrt(gf_intp a, gf_intp M, gf_intp b);
extern void gf_gcd(gf_intp A, gf_intp B, gf_intp c);
extern int gf_is_prime(gf_intp a);

extern int gf_size(gf_intp a);
extern void gf_toraw(gf_intp a, unsigned char *dst);
extern void gf_readraw(gf_intp a, unsigned char *str, int len);

#endif