[mikekchar]

> my plaintext and my cipher are available in the wild and my key (my long term key) is effectively broken.

Wait a minute. I may have to read the Latacora article again but if we are dealing with ciphers where having a plaintext attack reveals the key, I think we're in a lot bigger trouble than I ever imagined. To be blunt I don't really believe it and it would take some explanation to convince me it's true.

Edit: OK, I think I see the problem. I believe the quote in the article is discussing the fact that the user happily quotes a message and doesn't re-encrypt it, meaning that you have accidentally leaked the plain text -- not that they key is known. So I think they are arguing that we should write apps so that it is impossible to copy the plaintext.