in reply to Crypt::CipherSaber replacement... Crypt::CBC?
I'm going to have to disagree with the above posters--stay away from RC4. Although it's technically not busted straight out, it's very fragile to use in practice. Microsoft has a whole list of bugs regarding RC4 going back to NT3 and up through at least the first XBox. WEP's insecurity also stems from poor use of RC4.
I'd suggest going with Crypt::CBC using AES (Rijndael).
"There is no shame in being self-taught, only in not trying to learn in the first place." -- Atrus, Myst: The Book of D'ni.