1 files changed, 33 insertions, 0 deletions
diff --git a/src/cm/custom.h b/src/cm/custom.h
new file mode 100644
index 0000000..ddb89fe
--- /dev/null
+++ b/src/cm/custom.h
@@ -0,0 +1,33 @@
+/*
+ * ecgen, tool for generating Elliptic curve domain parameters
+ * Copyright (C) 2017 J08nY
+ */
+#ifndef ECGEN_CUSTOM_H
+#define ECGEN_CUSTOM_H
+
+#include "misc/config.h"
+#include "misc/types.h"
+
+typedef struct {
+	/* Stuff filled with custom_quadr_next. */
+	GEN p;
+	GEN t;
+	GEN D;
+
+	/* Stuff for saving state. */
+	GEN order;
+	GEN r;
+	GEN i;
+	GEN* Sp;
+	size_t nprimes;
+} custom_quadr_t;
+
+/**
+ * Algorithm mostly from:
+ *     Constructing elliptic curves of prime order
+ *     by Reinier Broker and Peter Stevenhagen
+ * @return
+ */
+curve_t* custom_curve();
+
+#endif  // ECGEN_CUSTOM_H