Fix ECDSA/ECDH key exchange

Libgcrypt interprets the private key as little endian, while tweetnacl
interprets it as big endian.  This caused the key exchange to fail.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/util/tweetnacl-gnunet.h b/src/util/tweetnacl-gnunet.h
index 239166ffc..2b2dc8e63 100644
--- a/src/util/tweetnacl-gnunet.h
+++ b/src/util/tweetnacl-gnunet.h
@@ -47,4 +47,8 @@ GNUNET_TWEETNACL_sign_detached (uint8_t *sig,
                                 const uint8_t *m,
                                 uint64_t n,
                                 const uint8_t *sk);
+
+void
+GNUNET_TWEETNACL_scalarmult_le_ed25519_base (uint8_t *pk, const uint8_t *s);
+
 #endif