Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2011-01-18
2011-01-18
Abrishamkar, Kaveh (Department: 2431)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S176000, C382S284000
Reexamination Certificate
active
07873834
ABSTRACT:
An image forming apparatus having a network communication function, includes a data input unit which inputs digital data; a data transmission unit which transmits the input digital data to a data management server for management of data; a digest generation unit which generates a digest of the input digital data; a digest storage unit which stores the digest generated by the digest generation unit; a time stamp acquisition unit which acquires a time stamp for authentication of an input time of the digital data from a time stamp station by issuing a time stamp request including the stored digest at a scheduled time; and a data management directive unit which transmits the acquired time stamp to the data management server for management of the time stamp and the transmitted digital data, associated with each other.
REFERENCES:
patent: 4646160 (1987-02-01), Iizuka et al.
patent: 6490371 (2002-12-01), Aoki et al.
patent: 6512856 (2003-01-01), Davis
patent: 7636733 (2009-12-01), Rothmuller
patent: 2005/0094178 (2005-05-01), Anno
patent: 2002116694 (2002-04-01), None
patent: 2003323512 (2003-11-01), None
Abrishamkar Kaveh
Fuji 'Xerox Co., Ltd.
Gauthier & Connors LLP
LandOfFree
Image forming apparatus, storage medium storing program for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image forming apparatus, storage medium storing program for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus, storage medium storing program for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2620039