Patent ID: 8126816

Claim:
A method to authenticate a purchase, comprising: a. establishing a one to one relationship with a remote computer and a one to one relationship with an individual; b. treating a device and account information as one whole set of entry, and establishing an identification (ID) based on weighted parameters associated with the remote computer and the individual; c. subsequently when a new set of entry is received, establishing another ID based on the weighted parameters associated with the remote computer and the individual; d. determining a relationship of the IDs based on the weighted parameters; e. collecting one or more unique or indicative parameters of the remote computer wherein the device and account information is in one whole set of entry; f. collecting one or more unique or indicative parameters of the individual wherein the device and account information are in one whole set of entry; and g. indexing the indicative parameters of the remote computer and individual to identify the remote computer and the individual to authorize the purchase, wherein the indicative parameters are represented as a string, further comprising determining a relationship M between users and computers as: M=[(α 1 ×β 1 )+P 1 ]×[(α 2×β 2 )+P 2 ]×. . . ×[(α n ×β n )+P n ], where α i and β i are constants and P i is a comparison of the indicative parameters based on each string position.