1 files changed, 22 insertions, 0 deletions
diff --git a/src/tools/curve25519.h b/src/tools/curve25519.h
new file mode 100644
index 0000000..3c1404a
--- /dev/null
+++ b/src/tools/curve25519.h
@@ -0,0 +1,22 @@
+/* Copyright 2015-2016 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */
+
+#ifndef CURVE25519_H
+#define CURVE25519_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+enum curve25519_lengths {
+	CURVE25519_POINT_SIZE = 32,
+};
+
+void curve25519(uint8_t *mypublic, const uint8_t *secret, const uint8_t *basepoint);
+void curve25519_generate_public(uint8_t *pub, const uint8_t *secret);
+static inline void curve25519_normalize_secret(uint8_t secret[CURVE25519_POINT_SIZE])
+{
+	secret[0] &= 248;
+	secret[31] &= 127;
+	secret[31] |= 64;
+}
+
+#endif