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Re: Editorial: Use of MAY in draft-ietf-ipsec-ikev2-algorithms
On 11 Jun 2003, David Wagner wrote:
> I don't recall a MAY requirement for any 40-bit cipher. We debated
> 40-bit ciphers a long time ago (remember export controls?), and we came
> to consensus many years ago that 40-bit ciphers have no place in IPSec.
> Are you saying there is a MAY requirement for a 40-bit cipher? If so,
> that should be fixed, but I don't believe it.
RFC 2451 Blowfish allows keys as short as 40 bits, as does RFC 2451 CAST.
RFC 2451 IDEA does not.