Our IBM cryptographic processors (HSMs) have been using this technique since around 1996 - data that is stored in flash memory is encrypted with a key that is destroyed on any attempt to tamper with the security module.
------------------------------------------------------------------- Todd W. Arnold, STSM IBM Cryptographic Technology Development (704) 594-8253 FAX 594-8336 ------------------------------------------------------------------- email: [EMAIL PROTECTED] "Perry E. Metzger" <[EMAIL PROTECTED]> Sent by: [EMAIL PROTECTED] 01/22/2008 10:29 PM To cryptography@metzdowd.com cc Subject patent of the day http://www.google.com/patents?vid=USPAT6993661 Hat tip to a party who prefers to remain anonymous who sent me the patent number. -- Perry E. Metzger [EMAIL PROTECTED] --------------------------------------------------------------------- The Cryptography Mailing List Unsubscribe by sending "unsubscribe cryptography" to [EMAIL PROTECTED]
