In message <[EMAIL PROTECTED]>, bear writes: > > >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? >
No, I meant CBC -- there's a birthday paradox attack to watch out for. --Prof. Steven M. Bellovin, http://www.cs.columbia.edu/~smb --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]