Method and apparatus to assign trust to a key

Details Method and apparatus to assign trust to a key Method and apparatus to assign trust to a key

1999-09-16

2009-08-04

Smithers, Matthew B (Department: 2437)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S155000, C380S030000, C380S044000, C380S286000

Reexamination Certificate

active

07571315

ABSTRACT:
A method includes determining whether a key is traceable to one of a set of keys associated with a trusted source and determining whether the key is identified in a list of compromised keys. If the key is not identified as compromised and is traceable to one of the keys in the set, the key is assigned a trusted status.

REFERENCES:
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patent: 5680458 (1997-10-01), Spelman et al.
patent: 5774552 (1998-06-01), Grimmer
patent: 6215872 (2001-04-01), Van Oorschot
patent: 6560706 (2003-05-01), Carbajal et al.
patent: WO 0116731 (2001-03-01), None
Paul Kocher, Ruby Lee, Gary McGraw, Anand Raghunathan, Srivaths Ravi, “Security as a new dimension in embedded system design”, Jun. 2004, DAC '04: Proceedings of the 41st annual conference on Design automation, pp. 753-760.

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