--- a/algo.h	Thu Mar 21 23:28:59 2019 +0800
+++ b/algo.h	Fri Jun 26 21:07:34 2020 +0800
@@ -47,7 +47,7 @@
 
 /* lists mapping ssh types of algorithms to internal values */
 extern algo_type sshkex[];
-extern algo_type sshhostkey[];
+extern algo_type sigalgs[];
 extern algo_type sshciphers[];
 extern algo_type sshhashes[];
 extern algo_type ssh_compress[];
@@ -72,6 +72,14 @@
 			unsigned long len, void *cipher_state);
 	int (*decrypt)(const unsigned char *ct, unsigned char *pt, 
 			unsigned long len, void *cipher_state);
+	int (*aead_crypt)(unsigned int seq,
+			const unsigned char *in, unsigned char *out,
+			unsigned long len, unsigned long taglen,
+			void *cipher_state, int direction);
+	int (*aead_getlength)(unsigned int seq,
+			const unsigned char *in, unsigned int *outlen,
+			unsigned long len, void *cipher_state);
+	const struct dropbear_hash *aead_mac;
 };
 
 struct dropbear_hash {
@@ -112,21 +120,17 @@
 	const struct ltc_hash_descriptor *hash_desc;
 };
 
-int have_algo(const char* algo, size_t algolen, const algo_type algos[]);
+/* Includes all algorithms is useall is set */
+void buf_put_algolist_all(buffer * buf, const algo_type localalgos[], int useall);
+/* Includes "usable" algorithms */
 void buf_put_algolist(buffer * buf, const algo_type localalgos[]);
 
-enum kexguess2_used {
-	KEXGUESS2_LOOK,
-	KEXGUESS2_NO,
-	KEXGUESS2_YES,
-};
+#define KEXGUESS2_ALGO_NAME "[email protected]"
 
-#define KEXGUESS2_ALGO_NAME "[email protected]"
-#define KEXGUESS2_ALGO_ID 99
-
-
+int buf_has_algo(buffer *buf, const char *algo);
+algo_type * first_usable_algo(algo_type algos[]);
 algo_type * buf_match_algo(buffer* buf, algo_type localalgos[],
-		enum kexguess2_used *kexguess2, int *goodguess);
+		int kexguess2, int *goodguess);
 
 #if DROPBEAR_USER_ALGO_LIST
 int check_user_algos(const char* user_algo_list, algo_type * algos,