1 files changed, 58 insertions, 0 deletions

diff --git a/src/math/equation.c b/src/math/equation.c
new file mode 100644
index 0000000..571ee71
--- /dev/null
+++ b/src/math/equation.c
@@ -0,0 +1,58 @@
+/*
+ * ecgen, tool for generating Elliptic curve domain parameters
+ * Copyright (C) 2017 J08nY
+ */
+#include <io/input.h>
+#include "equation.h"
+
+int eq_random(curve_t *curve, config_t *config, ...) {
+	int r = a_random(curve, config) + b_random(curve, config);
+	if (r == 2) {
+		return r;
+	}
+	return -1;
+}
+
+int a_random(curve_t *curve, config_t *config, ...) {
+	curve->a = genrand(curve->field);
+	return 1;
+}
+
+int a_input(curve_t *curve, config_t *config, ...) {
+	curve->a = fread_int(in, "a: ", config->bits, '\n');
+	return 1;
+}
+
+int a_zero(curve_t *curve, config_t *config, ...) {
+	curve->a = gen_0;
+	return 1;
+}
+
+int a_one(curve_t *curve, config_t *config, ...) {
+	curve->a = gen_1;
+	return 1;
+}
+
+int a_seed(curve_t *curve, config_t *config, ...) {}
+
+int b_random(curve_t *curve, config_t *config, ...) {
+	curve->b = genrand(curve->field);
+	return 1;
+}
+
+int b_input(curve_t *curve, config_t *config, ...) {
+	curve->b = fread_int(in, "a: ", config->bits, '\n');
+	return 1;
+}
+
+int b_zero(curve_t *curve, config_t *config, ...) {
+	curve->b = gen_0;
+	return 1;
+}
+
+int b_one(curve_t *curve, config_t *config, ...) {
+	curve->b = gen_1;
+	return 1;
+}
+
+int b_seed(curve_t *curve, config_t *config, ...) {}