In a recent note, Russell Witt said:

> Date:         Wed, 18 Jan 2006 20:33:33 -0600
> 
> Cypto-coprocessors and are running with z/OS you can encrypt with DES (or
> Triple-DES) in none-clear key. This means that the encryption key itself is
> "registered" with ICSF and you are returned a token name. When you want to
> encrypt data you call ICSF services and pass it this token name. ICSF will
> take the token name, find the real encryption key (which is stored in an
> encrypted form in its CKDS - Crypto Key Data Set) and pass this encrypted
> key down to the co-processor. Now, the co-processor is "locked" to this
> system and knows how to un-encrypt keys passed to it from this system. So it
> then un-encrypts the key and encrypts the data with this key and returns the
> encrypted data.
> 
So, how does the remote disaster recovery site decrypt the data when the
main site is crashed?

For that matter, what's the upgrade process to next year's model with a new
crypto-coprocessor?

-- gil
-- 
StorageTek
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