--- zzzz-none-000/linux-3.10.107/include/crypto/authenc.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/crypto/authenc.h	2021-02-04 17:41:59.000000000 +0000
@@ -23,5 +23,15 @@
 	__be32 enckeylen;
 };
 
-#endif	/* _CRYPTO_AUTHENC_H */
+struct crypto_authenc_keys {
+	const u8 *authkey;
+	const u8 *enckey;
+
+	unsigned int authkeylen;
+	unsigned int enckeylen;
+};
 
+int crypto_authenc_extractkeys(struct crypto_authenc_keys *keys, const u8 *key,
+			       unsigned int keylen);
+
+#endif	/* _CRYPTO_AUTHENC_H */