--- /dev/null
+#include "ed25519.h"
+#include "sha512.h"
+#include "ge.h"
+
+
+void ed25519_create_keypair(unsigned char *public_key, unsigned char *private_key, const unsigned char *seed) {
+ ge_p3 A;
+
+ sha512(seed, 32, private_key);
+ private_key[0] &= 248;
+ private_key[31] &= 63;
+ private_key[31] |= 64;
+
+ ge_scalarmult_base(&A, private_key);
+ ge_p3_tobytes(public_key, &A);
+}