[Cryptography] Does PGP use sign-then-encrypt or encrypt-then-sign?

Tony Arcieri bascule at gmail.com
Tue Jan 21 16:11:52 EST 2014


On Tue, Jan 21, 2014 at 11:17 AM, James Cloos <cloos at jhcloos.com> wrote:

> Some even suggested doing s-e-s, possibly with different signing keys.


Wouldn't it make the most sense to sign-then-encrypt-then-MAC (with the
latter ideally handled by an authenticated encryption mechanism)?

What's the value in being able to verify a signature without decrypting? It
seems like if you can do that then anyone can tie a signature to a
particular message even if they can't decrypt it, which seems like a
drawback to me.

-- 
Tony Arcieri
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