Also see DROPBEAR_DBCLIENT_AGENTFORWARD (agent forwarding in
dropbear client) if DROPBEAR_DBCLIENT is selected.
+config DROPBEAR_MODERN_ONLY
+ bool "Use modern crypto only [BREAKS COMPATIBILITY]"
+ select DROPBEAR_ED25519
+ select DROPBEAR_CURVE25519
+ select DROPBEAR_CHACHA20POLY1305
+ help
+ This option enables:
+ - Chacha20-Poly1305
+ - Curve25519
+ - Ed25519
+ and disables:
+ - AES
+ - RSA
+ - SHA1
+
+ Reduces binary size by about 64 kB (MIPS) from default
+ configuration.
+
+ Consider enabling this option if you're building own OpenWrt
+ image and using modern SSH software everywhere.
+
endmenu