Mercurial > dropbear

diff mycrypt_gf.h @ 3:7faae8f46238 libtomcrypt-orig

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Branch renaming
author Matt Johnston <matt@ucc.asn.au>
date Mon, 31 May 2004 18:25:41 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mycrypt_gf.h	Mon May 31 18:25:41 2004 +0000
@@ -0,0 +1,32 @@
+
+/* ---- 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