| |
| /* ---- 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 |
