System and method for downloading of files to a secure terminal

Details System and method for downloading of files to a secure terminal System and method for downloading of files to a secure terminal

2007-08-07

2007-08-07

Zand, Kambiz (Department: 2134)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Central trusted authority provides computer authentication

C713S193000

Reexamination Certificate

active

09893465

ABSTRACT:
Protection of private keys used to digitally sign files to be downloaded to a terminal is accomplished by storing the private keys in smartcards, and arranging a secure processor unit embedded in the smartcard to perform all signing operations requiring access to the keys so that the keys never leave the card. In addition, access to the signing operations is protected by multiple PINs, which may be distributed to multiple individuals and/or used to establish different signing authorization levels associated with different types of files.

REFERENCES:
patent: 5578808 (1996-11-01), Taylor
patent: 5659616 (1997-08-01), Sudia
patent: 5721781 (1998-02-01), Deo et al.
patent: 6091835 (2000-07-01), Smithies et al.
patent: 6092202 (2000-07-01), Veil et al.
When a password is not a password, Kenneth P Weiss, 1990.

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