Method for calculating hashing of a message in a device...

Details Method for calculating hashing of a message in a device... Method for calculating hashing of a message in a device...

2003-08-28

2008-05-20

Sheikh, Ayaz (Department: 2131)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

Tamper resistant

C713S159000, C713S160000, C713S170000, C726S002000, C726S005000, C726S009000, C726S020000

Reexamination Certificate

active

07376845

ABSTRACT:
A method for calculating hashing of a message in a device communicating with a smart card involves storing a same hash function in said device and said smart card, wherein the message includes-data blocks including secret data and other public data, and wherein secret data is only known by the smart card, performing a calculation of the hash function of the secret data in the smart card, and performing the calculation of the hash function of all or part of other public data in the device.

REFERENCES:
patent: 2002/0056044 (2002-05-01), Andersson
patent: 2005/0069137 (2005-03-01), Landrock
patent: 2 817 107 (2002-05-01), None
patent: WO 01/43472 (2001-06-01), None
patent: WO 01/84761 (2001-11-01), None
patent: WO 02/054663 (2002-07-01), None
“Wireless Transport Layer Security”; WAP Forum, “Online!”, XP-002223489, Wireless Application Protocol (WAP-261-WTLS-20010406-a), dated Apr. 6, 2001, pp. 1-106.

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