Enhanced cryptographic system and method with key escrow feature
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United States of America Patent
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Feb 16, 1999
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N/A
app pub date -
Feb 19, 1997
filing date -
Jan 13, 1994
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Abstract
The invention provides a cryptographic system and method with a key escrow feature that uses a method for verifiably splitting users' private encryption keys into components and for sending those components to trusted agents chosen by the particular users, and provides a system that uses modern public key certificate management, enforced by a chip device that also self-certifies. The methods for key escrow and receiving an escrow certificate are also applied herein to a more generalized case of registering a trusted device with a trusted third party and receiving authorization from that party enabling the device to communicate with other trusted devices.
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