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Re: IP: State Govt Will Use Datakey Smart Cards

daemon@ATHENA.MIT.EDU (Rick Smith)
Mon Oct 12 12:13:15 1998

Date: Mon, 12 Oct 1998 10:49:25 -0500
To: Paolo Da Ros <paolo.daros@cryptonet.it>
From: Rick Smith <rick_smith@securecomputing.com>
Cc: Ed Gerck <egerck@laser.cps.softex.br>,
        Robert Hettinga <rah@shipwright.com>, cryptography@c2.net,
        dcsb@ai.mit.edu
In-Reply-To: <361E2E0A.90C78416@cryptonet.it>

At 04:38 PM 10/9/98 +0100, Paolo Da Ros wrote:

>You will never need to recover a signature private key (you will just ask
for a
>new one), and you will have the chance  to recover the encryption private key
>(in our experience in Italy a very strong corporate requirement,  ...

This is a very good thing. In theory, the protocols should work fine if you
simply generate a new key when the old key is lost through a smartcard
failure.

However, the existing software oriented protocols were originally
implemented with the implicit assumption that secret keys were somehow or
other recoverable by the owner if a crash occurred. This is not true for
the smart cards. It may take some time to work out any bugs caused by this
assumption.

Rick.
smith@securecomuting.com


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