+/****f* silccrypt/SilcPubkeyAPI/silc_pkcs_silc_public_key_version
+ *
+ * SYNOPSIS
+ *
+ * int silc_pkcs_silc_public_key_version(SilcPublicKey public_key);
+ *
+ * DESCRIPTION
+ *
+ * Returns the verison of the SILC Public Key indicated by `public_key'.
+ * Returns -1 if the `public_key' is not a SILC Public Key and the
+ * version number otherwise.
+ *
+ ***/
+int silc_pkcs_silc_public_key_version(SilcPublicKey public_key);
+