Is 3DES Broken?

[bear]

On Mon, 31 Jan 2005, Steven M. Bellovin wrote:
<snip re: 3des broken?>

>>[Moderator's note: The quick answer is no. The person who claims
>> otherwise is seriously misinformed. I'm sure others will chime
>> in. --Perry]
>
>I'll be happy to second Perry's comment -- I've seen no evidence
>whatsoever to suggest that it's been broken.  But there are some
>applications where it's a bad choice for cryptographic reasons.
>
>When using CBC mode, one should not encrypt more than 2^32 64-bit
>blocks under a given key.

I think you meant ECB mode?

whichever it is, as you point out there are other and more secure
modes available for using 3DES if you have a fat pipe to encrypt.

				Bear

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