Spam filtering with probabilistic secure hashes
First Claim
1. A signature-based message filtering system that facilitates spam prevention and protection comprising:
- a signature assignment component that determines and assigns one or more signatures for an incoming message based in part on at least one hash function; and
a signature analysis component that determines a probability that at least a subset of the message'"'"'s signatures are indicative of spam based in part on a count of at least one of;
presumed good signatures that match, presumed spam signatures that match or the overall volume of messages sent to the system per signature.
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Accused Products
Abstract
Disclosed are signature-based systems and methods that facilitate spam detection and prevention at least in part by calculating hash values for an incoming message and then determining a probability that the hash values indicate spam. In particular, the signatures generated for each incoming message can be compared to a database of both spam and good signatures. A count of the number of matches can be divided by a denominator value. The denominator value can be an overall volume of messages sent to the system per signature for example. The denominator value can be discounted to account for different treatments and timing of incoming messages. Furthermore, secure hashes can be generated by combining portions of multiple hashing components. A secure hash can be made from a combination of multiple hashing components or multiple combinations thereof. The signature based system can also be integrated with machine learning systems to optimize spam prevention.
332 Citations
41 Claims
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1. A signature-based message filtering system that facilitates spam prevention and protection comprising:
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a signature assignment component that determines and assigns one or more signatures for an incoming message based in part on at least one hash function; and
a signature analysis component that determines a probability that at least a subset of the message'"'"'s signatures are indicative of spam based in part on a count of at least one of;
presumed good signatures that match, presumed spam signatures that match or the overall volume of messages sent to the system per signature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 41)
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28. A signature-based method that facilitates filtering messages for spam detection comprising:
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assigning one or more signatures to an incoming message based in part upon at least one hash function; and
determining a probability that at least a subset of the message'"'"'s signatures are indicative of spam based in part on a count of at least one of good signatures that match and spam signatures that match and the overall volume of messages sent to the system per signature. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A signature-based system that facilitates filtering messages for spam detection comprising:
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means for assigning one or more signatures to an incoming message based in part upon at least one hash function; and
means for determining a probability that at least a subset of the message'"'"'s signatures are indicative of spam based in part on a match count to at least one of good signatures and spam signatures and the overall volume of messages sent to the system per signature. - View Dependent Claims (39)
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40. A data packet adapted to be transmitted between two or more computer processes facilitating improved detection of spam, the data packet comprising:
- information associated with determining a probability that at least a subset of a message'"'"'s signatures are indicative of spam based in part on a match count to at least one of good signatures and spam signatures and the overall volume of messages sent to the system per signature.
Specification