1 files changed, 33 insertions, 0 deletions
diff --git a/src/libsodium/crypto_sign/ed25519/ref10/keypair.c b/src/libsodium/crypto_sign/ed25519/ref10/keypair.c
new file mode 100644
index 0000000..7955647
--- /dev/null
+++ b/src/libsodium/crypto_sign/ed25519/ref10/keypair.c
@@ -0,0 +1,33 @@
+
+#include <string.h>
+
+#include "api.h"
+#include "randombytes.h"
+#include "crypto_hash_sha512.h"
+#include "ge.h"
+
+int crypto_sign_seed_keypair(unsigned char *pk, unsigned char *sk,
+                             const unsigned char *seed)
+{
+    ge_p3 A;
+
+    crypto_hash_sha512(sk,seed,32);
+    sk[0] &= 248;
+    sk[31] &= 63;
+    sk[31] |= 64;
+
+    ge_scalarmult_base(&A,sk);
+    ge_p3_tobytes(pk,&A);
+
+    memmove(sk, seed, 32);
+    memmove(sk + 32, pk, 32);
+    return 0;
+}
+
+int crypto_sign_keypair(unsigned char *pk, unsigned char *sk)
+{
+    unsigned char seed[32];
+
+    randombytes(seed,32);
+    return crypto_sign_seed_keypair(pk,sk,seed);
+}