From de491a6191b465edb7bd9a01a5177ac9bf836747 Mon Sep 17 00:00:00 2001
From: J08nY
Date: Mon, 25 Nov 2019 21:25:29 +0100
Subject: Start Python codegen impl.

---
 pyecsca/codegen/templates/__init__.py |  0
 pyecsca/codegen/templates/coords.c    | 33 +++++++++++++++++++++++++++++++++
 pyecsca/codegen/templates/coords.h    |  5 +++++
 pyecsca/codegen/templates/curve.c     | 28 ++++++++++++++++++++++++++++
 pyecsca/codegen/templates/curve.h     |  8 ++++++++
 5 files changed, 74 insertions(+)
 create mode 100644 pyecsca/codegen/templates/__init__.py
 create mode 100644 pyecsca/codegen/templates/coords.c
 create mode 100644 pyecsca/codegen/templates/coords.h
 create mode 100644 pyecsca/codegen/templates/curve.c
 create mode 100644 pyecsca/codegen/templates/curve.h

(limited to 'pyecsca/codegen/templates')

diff --git a/pyecsca/codegen/templates/__init__.py b/pyecsca/codegen/templates/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/pyecsca/codegen/templates/coords.c b/pyecsca/codegen/templates/coords.c
new file mode 100644
index 0000000..00f6086
--- /dev/null
+++ b/pyecsca/codegen/templates/coords.c
@@ -0,0 +1,33 @@
+point_t *point_new(void) {
+	point_t *result = malloc(sizeof(point_t));
+	{%- for variable in variables %}
+	bn_init(&result->{{ variable }});
+	{%- endfor %}
+
+	return result;
+}
+
+point_t *point_copy(const point_t *from) {
+	point_t *result = point_new();
+	point_set(from, result);
+	return result;
+}
+
+void point_set(const point_t *from, point_t *out) {
+	{%- for variable in variables %}
+	bn_copy(&from->{{ variable }}, &out->{{ variable }});
+	{%- endfor %}
+}
+
+void point_free(point_t *point) {
+	{%- for variable in variables %}
+	bn_clear(&point->{{ variable }});
+	{%- endfor %}
+	free(point);
+}
+
+int point_to_affine(point_t *point, const char coord, curve_t *curve, bn_t *out) {
+	
+}
+
+int point_from_affine(bn_t *x, bn_t *y, curve_t *curve, point_t *out);
diff --git a/pyecsca/codegen/templates/coords.h b/pyecsca/codegen/templates/coords.h
new file mode 100644
index 0000000..6890c11
--- /dev/null
+++ b/pyecsca/codegen/templates/coords.h
@@ -0,0 +1,5 @@
+typedef struct {
+	{%- for variable in variables %}
+	bn_t {{ variable }};
+	{%- endfor %}
+} point_t;
\ No newline at end of file
diff --git a/pyecsca/codegen/templates/curve.c b/pyecsca/codegen/templates/curve.c
new file mode 100644
index 0000000..a49adde
--- /dev/null
+++ b/pyecsca/codegen/templates/curve.c
@@ -0,0 +1,28 @@
+curve_t* curve_new(const named_bn_t **params, int num_params) {
+	curve_t *result = malloc(sizeof(curve_t));
+	{%- for param in params %}
+	bn_init(&result->{{ param }});
+	{%- endfor %}
+	bn_init(&result->n);
+
+	for (int i = 0; i < num_params; ++i) {
+		switch (params[i]->name) {
+			{%- for param in params %}
+			case '{{ param }}': bn_copy(params[i]->value, result->{{ param }});
+								break;
+			{%- endfor %}
+			default:
+				curve_free(result);
+				return NULL;
+		}
+	}
+	return result;
+}
+
+void curve_free(curve_t *curve) {
+	{%- for param in params %}
+	bn_clear(&curve->{{ param }});
+	{%- endfor %}
+	bn_clear(&curve->n);
+	free(curve);
+}
\ No newline at end of file
diff --git a/pyecsca/codegen/templates/curve.h b/pyecsca/codegen/templates/curve.h
new file mode 100644
index 0000000..ff4a078
--- /dev/null
+++ b/pyecsca/codegen/templates/curve.h
@@ -0,0 +1,8 @@
+typedef struct {
+    {%- for param in params %}
+    bn_t {{ param }};
+    {%- endfor %}
+    bn_t n;
+    bn_t h;
+    point_t neutral;
+} curve_t;
\ No newline at end of file
-- 
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