Attestation using both fixed token and portable token

Information security – Prevention of unauthorized use of data including prevention...

Reexamination Certificate

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C726S020000, C713S159000, C713S185000, C713S172000, C713S193000, C380S278000, C380S283000, C380S284000, C380S285000, C705S054000, C705S055000, C705S065000

Reexamination Certificate

active

10321751

ABSTRACT:
Methods, apparatus and machine readable medium are described for creating and using protected key blobs that require a particular portable token be present before use of the key or keys of the protected key blob is granted. Such protected key blobs may be used to establish a level of trust between a local user and the computing device.

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