Re: [ietf-dkim] Core algorithm support/use, draft text v2

Dave Crocker:
> Here goes:
>
>     A validator MUST support {SHA-1, SHA-256}.
>
>     A signer MUST support {SHA-1, SHA-26}.  A signer SHOULD use {SHA-256} for 
> its higher security strength. However a signer MAY use {SHA-1}, such as for 
> compatibility with an installed base, lower computational cost, or easier 
> implementation effort.
Agree.

        Wietse
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