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Re: Proposed changes to ESP (andf a little AH too)
Would that mean that a transform combination of (outer AH, ESP, and inner
AH) be useful? Or, of course, AH and ESP-with-authentication.
At 01:20 PM 3/23/97 -0500, you wrote:
>John Ioannidis says:
>> I'm all in favour of doing the encryption first and the authentication
>> after, so that on receipt we can authenticate before we receive, but
>> wasn't there some cryptographic argument against that sort of thing?
>
>The main argument against doing encryption first and auth second would
>be - generally speaking there is no guarantee even if you verified the
>CIPHERTEXT correctly, that the PLAINTEXT finally obtained is the same
>as was sent.
>--
>Regards,
>Uri uri@watson.ibm.com
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><Disclaimer>
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--------
Rodney Thayer <rodney@sabletech.com>
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