--- /dev/null
+/*
+ * Common values for the Poly1305 algorithm
+ */
+
+#ifndef _CRYPTO_POLY1305_H
+#define _CRYPTO_POLY1305_H
+
+#include <sodium/crypto_onetimeauth_poly1305.h>
+
+#define POLY1305_KEY_SIZE crypto_onetimeauth_poly1305_KEYBYTES
+#define POLY1305_DIGEST_SIZE crypto_onetimeauth_poly1305_BYTES
+
+#endif