Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2002-05-31
2008-05-27
Sheikh, Ayaz (Department: 2131)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S155000, C713S181000, C705S051000, C705S064000, C705S406000, C709S206000, C726S001000, C726S026000
Reexamination Certificate
active
07380126
ABSTRACT:
Methods and apparatus for identifying unwanted email messages by transmitting metadata with an outbound email message that indicates the total number of email messages sent by that sender in a predetermined time period, or alternatively indicates the total number of email messages which are equivalent to the outgoing message that have been sent. In addition the metadata may include an identification of the sender and a “pledge” made byte sender. A pledge may take the form of a binding commitment from the sender that the information contained in the metadata is accurate, and/or that the sender promises to abide by predetermined good conduct rules designed to limit unwanted email. The outgoing message may be further signed by the sender with a digital signature that provides means for verifying the content of the message and the pledge as well as the identity of the sender.
REFERENCES:
patent: 5999967 (1999-12-01), Sundsted
patent: 6115735 (2000-09-01), Saito
patent: 6145079 (2000-11-01), Mitty et al.
patent: 6327656 (2001-12-01), Zabetian
patent: 6640301 (2003-10-01), Ng
patent: 6820202 (2004-11-01), Wheeler et al.
patent: 6829635 (2004-12-01), Townshend
patent: 6848048 (2005-01-01), Holmes
patent: 7188358 (2007-03-01), Hisada et al.
patent: 2002/0116463 (2002-08-01), Hart
patent: 2002/0120600 (2002-08-01), Schiavone et al.
patent: 2002/0169954 (2002-11-01), Bandini et al.
Call Charles G.
Logan James D.
Call Charles G.
Doan Trang
Sheikh Ayaz
LandOfFree
Methods and apparatus for controlling the transmission and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and apparatus for controlling the transmission and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for controlling the transmission and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3982715