Methods and apparatus for delegation of cryptographic...

Details Methods and apparatus for delegation of cryptographic... Methods and apparatus for delegation of cryptographic...

2008-05-13

2008-05-13

Moise, Emmanual L. (Department: 2137)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Reexamination Certificate

active

07373499

ABSTRACT:
Improved cryptographic techniques are provided by which a device that performs private key operations (e.g., signatures and/or decryptions), and whose private key operations are protected by a password, is immunized against offline dictionary attacks in case of capture by forcing the device to confirm a password guess with a designated entity or party in order to perform a private key operation, and by which the initiating device may dynamically delegate the password-checking function (i.e., confirmation of the password guess) from the originally designated entity or party to another designated entity or party.

REFERENCES:
patent: 5535276 (1996-07-01), Ganesan
patent: 5557678 (1996-09-01), Ganesan
patent: 5588061 (1996-12-01), Ganesan et al.
patent: 5721779 (1998-02-01), Funk
patent: 5737419 (1998-04-01), Ganesan
patent: 5748735 (1998-05-01), Ganesan
patent: 5838792 (1998-11-01), Ganesan
patent: 5905799 (1999-05-01), Ganesan
patent: 6138235 (2000-10-01), Lipkin et al.
patent: 6367009 (2002-04-01), Davis et al.
patent: 6601171 (2003-07-01), Carter et al.
patent: 6643774 (2003-11-01), McGarvey
patent: 2002/0112155 (2002-08-01), Martherus et al.
patent: 2002/0147917 (2002-10-01), Brickell
patent: 2003/0216172 (2003-11-01), LeMay et al.
U.S. Appl. No. 10/072,331, filed Feb. 7, 2002, MacKenzie et al. “Methods and Apparatus for Providing Networked Cryptographic Devices Resilient to Capture”.

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