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Any thoughts? — Matt Crypto 10:05, 6 Jan 2005 (UTC)

Yea yall should merg that way ppl won't have to serch for the crptography stuff. -- Amishellb 16:37, 26 Jan 2005 (UTC)

cryptogrphy is the tool that can be used into the security purpose.-HIMANSHU VERMA

This is two subjects, perhaps it should be two pages. — Preceding unsigned comment added by 208.83.120.194 ( talk) 16:52, 12 August 2016 (UTC) reply

I removed a claim ("An example of an algorithm using a codebook is the MacGuffin cipher") which has been on the page a long time and was marked citation needed. I'm pretty sure it's a misunderstanding, the MacGuffin cipher is a plain block cipher and has nothing to do with codebooks. FrankP ( talk) 20:02, 21 February 2018 (UTC) reply