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Re: padding questions

To: Rodney Thayer <rodney@sabletech.com>
Subject: Re: padding questions
From: Bill Sommerfeld <sommerfeld@apollo.hp.com>
Date: Wed, 04 Jun 1997 12:58:47 -0400
Cc: ipsec@tis.com
In-Reply-To: rodney's message of Wed, 04 Jun 1997 11:13:36 -0400. <3.0.1.32.19970604111336.00722ab8@pop3.pn.com>
Sender: owner-ipsec@ex.tis.com

> However, the document also suggests padding could be used to assist in
> hiding the true payload length, or for boundry conditions.  For example I
> could take a 9 byte payload, add 5 bytes of pad (9 payload + 5 pad + 1
> pad-length + 1 next-payload = 16 which is divisible by 8)  But could I send
> the same packet padded with 21 bytes, i.e. throw in two more pad 'blocks'
> for obscurity?

I've seen this mentioned as a possibility in presentations about ESP
for a number of years..

					- Bill

References:

padding questions

From: Rodney Thayer <rodney@sabletech.com>

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