I know it's a bit old, but since I read this I cannot possibly take Tutanota seriously on anything crypto: https://tutanota.uservoice.com/forums/237921-general

I know it's a bit old, but since I read this I cannot possibly take Tutanota seriously on anything crypto: https://tutanota.uservoice.com/forums/237921-general/suggestions/7858974-tutanota-is-using-unauthenticated-aes-cbc-encrypti https://tutanota.uservoice.com/forums/237921-general/suggest... https://seclists.org/fulldisclosure/2015/Jun/58 https://seclists.org/fulldisclosure/2015/Jun/58