Re: Lay guess

Date: 2002-07-24 08:37 am (UTC)
From: [identity profile] ciphergoth.livejournal.com
Vernam cipher. This isn't really a defect - you should never use the same (key, nonce) pair twice with any stream cipher. CTR and OFB modes turn a block cipher into a Vernam stream cipher, and they're perfectly secure if the block cipher is secure.
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