Android data channel ciphers
Posted: Tue Sep 07, 2021 8:48 am
good day,
Wanted to test if OpenVPN performance can be improved on my Android phone by using a differrent cipher in particular Chacha20-Poly1305 as my phone cannot hardware accelerate the AES ciphers so maybe chance to improvement with non AES ciphers!
In Access server advanced setting I changed my Allowed data channel ciphers to Chacha20-Poly1305:AES-256-GCM:AES-128-GCM:AES-256-CBC but still only uses second prefered option AES-256-GCM
I try to change Allowed data channel ciphers to only Chacha20-Poly1305 but then OpenVPN connect app logs an error "Data channel cipher negotiation failed (no shared cipher)"
so looks like my phone or app cannot support this.
My question: is the choice to use this cipher not supported by the OpenVPN Connect app, or is it limited by my phone itself such as hardware or android version?
Thanks you for reading my problem
Guy
Wanted to test if OpenVPN performance can be improved on my Android phone by using a differrent cipher in particular Chacha20-Poly1305 as my phone cannot hardware accelerate the AES ciphers so maybe chance to improvement with non AES ciphers!
In Access server advanced setting I changed my Allowed data channel ciphers to Chacha20-Poly1305:AES-256-GCM:AES-128-GCM:AES-256-CBC but still only uses second prefered option AES-256-GCM
I try to change Allowed data channel ciphers to only Chacha20-Poly1305 but then OpenVPN connect app logs an error "Data channel cipher negotiation failed (no shared cipher)"
so looks like my phone or app cannot support this.
My question: is the choice to use this cipher not supported by the OpenVPN Connect app, or is it limited by my phone itself such as hardware or android version?
Thanks you for reading my problem
Guy