W3C home > Mailing lists > Public > public-webcrypto@w3.org > June 2012

Another use case: validating documents received

From: Philip Gladstone <pgladsto@cisco.com>
Date: Wed, 06 Jun 2012 14:21:44 -0400
Message-ID: <4FCF9FB8.8030305@cisco.com>
To: "public-webcrypto@w3.org" <public-webcrypto@w3.org>
As part of another activity, the requirement came up to allow the 
javascript in a browser to validate the whether an HTML document that 
had been received was actually the original document sent by the web 
server or whether it had been modified in transit (e.g. by some 
'helpful' party that was doing ad insertion). Note that retreiving the 
document over TLS doesn't provide that guarantee due to the presence of 
TLS proxies.

It isn't quite clear to me how to solve this problem, but it seems like 
a useful use case.


Philip Gladstone
Distinguished Engineer
Product Development
Phone: +1 978-ZEN-TOAD (+1 978 936 8623)
Google: +1 978 800 1010
Ham radio: N1DQ
Received on Wednesday, 6 June 2012 18:22:17 UTC

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