Re: Encrypted Integrity Protected Data Packet, and MDC packet

> in rfc 2440 bis-18,
>
> the way that the symmetric integrity protected data packet, and mdc 
> packets are described, (sections 5.13, 5.14),
>
> it assumes that the hash used in these packets, is SHA-1
>
> is this a 'MUST',
> or can any open-pgp hash be used?
It is a MUST.  Only SHA-1 may be used there.

Hal Finney