Cryptographic key backup and escrow system
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United States of America Patent
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Mar 20, 2012
Grant Date -
Jun 23, 2005
app pub date -
Dec 21, 2004
filing date -
Dec 23, 2003
priority date (Note) -
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Abstract
A system for securely storing application keys is comprised of a database system, a peripheral hardware security module and cryptographic keys, wherein cryptographic keys comprise application keys, intermediate keys and a master key. Application keys are grouped according to characteristic and are associated with a particular intermediate key, which is utilized to scramble and descramble application keys within the associated group. Intermediate keys are associated with the master key, which is utilized to scramble and descramble the intermediate keys. Scrambling and descrambling of keys is performed within the peripheral hardware security module.
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