libs:

	libaxolotl:
		updated libaxolotl (libsignal-c) from (https://github.com/WhisperSystems/libsignal-protocol-c)

1 files changed, 21 insertions, 0 deletions

diff --git a/libs/libaxolotl/src/curve25519/ed25519/additions/keygen.c b/libs/libaxolotl/src/curve25519/ed25519/additions/keygen.c
new file mode 100644
index 0000000000..de7cdcd598
--- /dev/null
+++ b/libs/libaxolotl/src/curve25519/ed25519/additions/keygen.c
@@ -0,0 +1,21 @@
+#include "ge.h"
+#include "keygen.h"
+#include "crypto_additions.h"
+
+void curve25519_keygen(unsigned char* curve25519_pubkey_out,
+                       const unsigned char* curve25519_privkey_in)
+{
+  /* Perform a fixed-base multiplication of the Edwards base point,
+     (which is efficient due to precalculated tables), then convert
+     to the Curve25519 montgomery-format public key.
+
+     NOTE: y=1 is converted to u=0 since fe_invert is mod-exp
+  */
+
+  ge_p3 ed; /* Ed25519 pubkey point */
+  fe u;
+
+  ge_scalarmult_base(&ed, curve25519_privkey_in);
+  ge_p3_to_montx(u, &ed);
+  fe_tobytes(curve25519_pubkey_out, u);
+}