1 files changed, 40 insertions, 0 deletions
diff --git a/libs/libsodium/src/include/sodium/crypto_scalarmult_curve25519.h b/libs/libsodium/src/include/sodium/crypto_scalarmult_curve25519.h
new file mode 100644
index 0000000000..ae85eadc22
--- /dev/null
+++ b/libs/libsodium/src/include/sodium/crypto_scalarmult_curve25519.h
@@ -0,0 +1,40 @@
+#ifndef crypto_scalarmult_curve25519_H
+#define crypto_scalarmult_curve25519_H
+
+#include <stddef.h>
+
+#include "export.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define crypto_scalarmult_curve25519_BYTES 32U
+SODIUM_EXPORT
+size_t crypto_scalarmult_curve25519_bytes(void);
+
+#define crypto_scalarmult_curve25519_SCALARBYTES 32U
+SODIUM_EXPORT
+size_t crypto_scalarmult_curve25519_scalarbytes(void);
+
+/*
+ * NOTE: Do not use the result of this function directly.
+ *
+ * Hash the result with the public keys in order to compute a shared
+ * secret key: H(q || client_pk || server_pk)
+ *
+ * Or unless this is not an option, use the crypto_kx() API instead.
+ */
+SODIUM_EXPORT
+int crypto_scalarmult_curve25519(unsigned char *q, const unsigned char *n,
+                                 const unsigned char *p)
+            __attribute__ ((warn_unused_result));
+
+SODIUM_EXPORT
+int crypto_scalarmult_curve25519_base(unsigned char *q, const unsigned char *n);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif