Committer: hoguchi live <steaky@woto.localdomain>

On branch master

 Initial commit

 Changes to be committed:
	new file:   EllipticCurves/memory.c
	new file:   EllipticCurves/memory.h
	new file:   EllipticCurves/models.c
	new file:   EllipticCurves/models.h
	new file:   compile.sh
	new file:   main
	new file:   main.c

CRS.git/EllipticCurves/memory.c

@@ -0,0 +1,57 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "memory.h"
+#include "models.h"
+
+#include <gmp.h>
+#include <flint/fmpz.h>
+#include <flint/fq.h>
+
+void SW_init(SW_curve *E, const fq_ctx_t *F) {
+
+	//fmpz_init(E->p);
+	fq_init(E->a, *F);
+	fq_init(E->b, *F);
+}
+
+void SW_set(SW_curve *E, const fq_ctx_t *F, const fmpz_t a, const fmpz_t b) {
+
+	fmpz_t p;
+	long d;
+
+	fmpz_init_set(p, fq_ctx_prime(*F));
+	d = fq_ctx_degree(*F);
+
+	E->F = F;
+	fq_set_fmpz(E->a, a, *F);
+	fq_set_fmpz(E->b, b, *F);
+
+	fmpz_clear(p);
+}
+
+void SW_print(SW_curve *E) {
+
+	printf("Elliptic curve Y^3 = X^3 + ");
+	fq_print_pretty(E->a, *(E->F));
+	printf("X + ");
+	fq_print_pretty(E->b, *(E->F));
+	printf(" in short Weierstrass form over F_p^d with p = ");
+	//fmpz_print(E->p);
+	//printf(" and d = %ld", E->d);
+}
+
+//#define template_weierstrass(a1, a2, a3, a4, a6) const fmpz_t a1, const fmpz_t a2, const fmpz_t a3, const fmpz_t a4, const fmpz_t a6
+//void print_test(template_weierstrass(a1, a2, a3, a4, a6)) {
+//	printf("\n");
+//	fmpz_print(a1);
+//	printf("\n");
+//	fmpz_print(a2);
+//	printf("\n");
+//	fmpz_print(a3);
+//	printf("\n");
+//	fmpz_print(a4);
+//	printf("\n");
+//	fmpz_print(a6);
+//	printf("\n");
+//}

CRS.git/EllipticCurves/memory.h

@@ -0,0 +1,14 @@
+#ifndef _MEMORY_H_
+#define _MEMORY_H_
+
+#include "models.h"
+
+#include <gmp.h>
+#include <flint/fmpz.h>
+#include <flint/fq.h>
+
+void SW_init(SW_curve *, const fq_ctx_t *);
+void SW_set(SW_curve *, const fq_ctx_t *, const fmpz_t, const fmpz_t);
+void SW_print(SW_curve *);
+
+#endif

CRS.git/EllipticCurves/models.c

@@ -0,0 +1,8 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "models.h"
+
+#include <gmp.h>
+#include <flint/fmpz.h>
+#include <flint/fq.h>

CRS.git/EllipticCurves/models.h

@@ -0,0 +1,16 @@
+#ifndef _MODELS_H_
+#define _MODELS_H_
+
+#include <gmp.h>
+#include <flint/fmpz.h>
+#include <flint/fq.h>
+
+typedef struct SW_curve{
+
+	const fq_ctx_t *F;	// base field
+	//fmpz_t p;		// characteristic
+	//slong d;		// degree
+
+	fq_t a, b;		// curve parameters
+} SW_curve;
+#endif

CRS.git/compile.sh

@@ -0,0 +1,4 @@
+gcc 	EllipticCurves/memory.c \
+	EllipticCurves/models.c \
+	main.c \
+	-lgmp -lflint -o main && ./main

CRS.git/main.c

@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "EllipticCurves/models.h"
+#include "EllipticCurves/memory.h"
+
+#include <gmp.h>
+#include <flint/fmpz.h>
+#include <flint/fq.h>
+
+int main() {
+
+	// Elliptic curve parameters
+	char p_str[] = "0x13";
+	slong d = 2;
+	char a_str[] = "0x1";
+	char b_str[] = "0x7";
+
+	fmpz_t p_fmpz, a_fmpz, b_fmpz;
+	fmpz_init(p_fmpz);
+	fmpz_init(a_fmpz);
+	fmpz_init(b_fmpz);
+
+	fmpz_set_str(p_fmpz, p_str, 0);
+	fmpz_set_str(a_fmpz, a_str, 0);
+	fmpz_set_str(b_fmpz, b_str, 0);
+
+	// Finite field context
+	fq_ctx_t F;
+	char *Fgen = "g";
+	fq_ctx_init(F, p_fmpz, d, Fgen);
+
+	// Base curve
+	SW_curve E;
+	SW_init(&E, &F);
+	SW_set(&E, &F, a_fmpz, b_fmpz);
+
+	// Print base curve
+	SW_print(&E);
+	//print_test(a_fmpz, b_fmpz, a_fmpz, a_fmpz, b_fmpz);
+
+	return 0;
+}