Method and apparatus for maintaining privacy of data...

Details Method and apparatus for maintaining privacy of data... Method and apparatus for maintaining privacy of data...

2005-11-22

2010-06-29

Zand, Kambiz (Department: 2434)

Cryptography

Key management

Key distribution

Reexamination Certificate

active

07747025

ABSTRACT:
Decryptor is utilized in a dual role to maintain privacy of data decryption keys used in configuration bitstream decryption. In a first role, decryptor receives a data decryption key in an encrypted format (ENCRYPTED KEY DATA), which is then decrypted using a mask programmed decryption key. The decrypted key is then stored into one or more of key storage blocks. In a second role, decryptor is utilized to decrypt the encrypted configuration bitstream (ENCRYPTED CONFIGURATION DATA) using the previously decrypted data decryption key.

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U.S. Appl. No. 10/112,838, filed Mar. 29, 2002, Trimberger.
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U.S. Appl. No. 10/112,790, filed Mar. 29, 2002, Trimberger.

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