Personal authenticating multi-function peripheral

Details Personal authenticating multi-function peripheral Personal authenticating multi-function peripheral

2005-08-02

2009-10-27

Zand, Kambiz (Department: 2434)

Cryptography

Particular algorithmic function encoding

Public key

C713S156000

Reexamination Certificate

active

07609834

ABSTRACT:
A method and apparatus of printing a document in a secure manner, includes receiving, by a printer, print data that has been encrypted using a printer public key. The printer-public-key-encrypted print data is decrypted by the printer using a printer secret key, to obtain decrypted print data as well as user identification information provided with the print data. Print pre-processing is performed by the printer on the decrypted print data, to thereby obtain pre-processed print data. The pre-processed print data is encrypted by the printer using a user secret key to obtain user-public-key-encrypted print data, and the user-public-key-encrypted print data is stored. The user-public-key-encrypted print data is decrypted and printed by the printer upon receipt of a user secret key, prior to printing the print data.

REFERENCES:
patent: 2004/0008842 (2004-01-01), Partelow et al.
patent: 2005/0097323 (2005-05-01), Lapstun et al.
patent: 2005/0152543 (2005-07-01), Shima et al.
patent: 2006/0064580 (2006-03-01), Euchner et al.
patent: 2004-086894 (2004-03-01), None
patent: WO 2004/013749 (2004-02-01), None
Jim Dawson; Turbo Cryptographic Card (TCC) security policy; Dec. 14, 1998; csrc.nist.gov; SP-14094-0; p. 1-14.

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