David Wagner wrote:
> Ed Gerck wrote: > >(A required property of MACs is providing a uniform distribution of values for a > >change in any of the input bits, which makes the above sequence extremely > >improbable) > > Not so. This is not a required property for a MAC. > (Not all MACs must be PRFs.) Thanks. I should have written "a usually required property". In general, to have a good MAC, we require a good PRF. Ed Gerck --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]