Security means for transaction terminal system
First Claim
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1. A transaction terminal system comprising:
- data processing means,a plurality of remote data capture terminals, each said terminal including;
data input means for receiving data including account identification data and associated security data, each said data input means including means for distorting said security data such that the distortions vary among said terminals for the same said received security data,said data input means including means for reading security data from a document whereby the validity determination is representative of the authenticity of the presented document,means for generating terminal identification data,means for transmitting said terminal identification data, account identification data, and distorted security data to said data processing means,said data processing means including;
means for correcting said distorted security data in a predetermined manner specified for said terminal, andmeans for determining the validity of said corrected security data.said document security data including data from at least two data sets, said reading means including means for reading said data from said data sets and providing output signals representative thereof, said distortion means defining at least in part the effective time or spacial relationship between said output signals from a said terminal.
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Abstract
A transaction terminal system is provided including means which prevent the utilization of certain tapped-line data. Security data, such as personal identification numbers or card security codes, is allowed to be distorted by each terminal in a manner which varies from terminal to terminal within the system and is corrected for at the data processor or other appropriate location in a manner specified for the particular terminal sending the data.
62 Citations
11 Claims
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1. A transaction terminal system comprising:
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data processing means, a plurality of remote data capture terminals, each said terminal including; data input means for receiving data including account identification data and associated security data, each said data input means including means for distorting said security data such that the distortions vary among said terminals for the same said received security data, said data input means including means for reading security data from a document whereby the validity determination is representative of the authenticity of the presented document, means for generating terminal identification data, means for transmitting said terminal identification data, account identification data, and distorted security data to said data processing means, said data processing means including; means for correcting said distorted security data in a predetermined manner specified for said terminal, and means for determining the validity of said corrected security data. said document security data including data from at least two data sets, said reading means including means for reading said data from said data sets and providing output signals representative thereof, said distortion means defining at least in part the effective time or spacial relationship between said output signals from a said terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of enhancing the security of a transaction terminal system including a data processing station and plurality of terminals, each terminal having means for reading data from a pair of data sets carried by a presented document and generating signals representative of the data, said method comprising:
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varying characteristics of the reading means from terminal to terminal within the system whereby the time or spacial relationship between the resultant signals varies from terminal to terminal, determining the reading means characteristics for each terminal and storing data representative thereof at the data processing station, and utilizing the stored data for the terminals to normalize the time or spacial relationship between the data set data subsequently read by a terminal in the system. - View Dependent Claims (10, 11)
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Specification