At 07:42 AM 1/17/96 -8, you wrote:
On 16 Jan 96 at 19:16, Derek Atkins wrote:
To give further perspective, he kept claiming that a "triple DES with RS4 overlay" was the most secure method of encryption.
Well, he's wrong. A one time pad (properly generated and used) is provably secure as the "most" secure cipher. Speaking of "provably", ask him if he's sure that "triple DES with an RC4 overlay" is more secure than, say, "quintuple DES with an RC4 overlay" (since we're making up combinations). I would be VERY interested in any mathematical proof or empirical evidence that putting the RC4 on top of the encryption would be more secure than doing it first or between the DES rounds. Some pretty good mathemeticians have failed to produce such sweeping results (for the public domain, anyway.) Let's see if I have this right. Someone with access to the internet claims that someone with access to the DOD claims that some cipher system is good and another is bad. I have no reason to believe you. You seem to have no reason to believe him. He does not seem to know what he's talking about, on a subject where a great deal of effort is expended to promote confusion... I think I've got it! Rick F. Hoselton (who doesn't claim to present opinions for others)