METHODS FOR ESTABLISHING LEGITIMACY OF COMMUNICATIONS
First Claim
1. A method for sending a message to a recipient, comprising:
- determining a data set associated with the message;
accessing an ensemble of precomputed tags corresponding to respective initial data sets, each precomputed tag representing a solution to a computational problem involving the respective initial data set;
identifying the precomputed tag in said ensemble for which the corresponding initial data set corresponds to the data set associated with the message; and
sending the message and informing the recipient of the identified precomputed tag.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for sending a message to a recipient, which comprises determining a data set associated with the message; accessing an ensemble of precomputed tags corresponding to respective initial data sets, each precomputed tag representing a solution to a computational problem involving the respective initial data set; identifying the precomputed tag in the ensemble for which the corresponding initial data set corresponds to the data set associated with the message; and sending the message and informing the recipient of the identified precomputed tag. The recipient executes a method comprising obtaining a tag associated with the message; determining a data set associated with the message, the data set in some embodiments including a portion extrinsic to the message; determining whether the tag represents a solution to a computational problem involving the data set associated with the message; determining whether the tag was specifically generated for the message, based on the portion extrinsic to the message; and establishing the legitimacy of the message based on the outcomes of the previous steps.
55 Citations
62 Claims
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1. A method for sending a message to a recipient, comprising:
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determining a data set associated with the message; accessing an ensemble of precomputed tags corresponding to respective initial data sets, each precomputed tag representing a solution to a computational problem involving the respective initial data set; identifying the precomputed tag in said ensemble for which the corresponding initial data set corresponds to the data set associated with the message; and sending the message and informing the recipient of the identified precomputed tag. - View Dependent Claims (2, 18, 19, 33, 34, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50)
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3-17. -17. (canceled)
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20-32. -32. (canceled)
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35-37. -37. (canceled)
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43. (canceled)
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51-59. -59. (canceled)
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60. Apparatus for sending a message to a recipient, comprising:
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means for determining a data set associated with the message; means for accessing an ensemble of precomputed tags corresponding to respective initial data sets, each precomputed tag representing a solution to a computational problem involving the respective initial data set; means for identifying the precomputed tag in said ensemble for which the corresponding initial data set corresponds to the data set associated with the message; and means for sending the message and informing the recipient of the identified precomputed tag.
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61. A computer-readable medium comprising computer-readable program code which, when interpreted by a computing apparatus, causes the computing apparatus to execute a method for sending a message to a recipient, the computer-readable program code comprising:
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first computer-readable program code for causing the computing apparatus to determine a data set associated with the message; second computer-readable program code for causing the computing apparatus to access an ensemble of precomputed tags corresponding to respective initial data sets, each precomputed tag representing a solution to a computational problem involving the respective initial data set; third computer-readable program code for causing the computing apparatus to identify the precomputed tag in said ensemble for which the corresponding initial data set corresponds to the data set associated with the message; and fourth computer-readable program code for causing the computing apparatus to send the message and inform the recipient of the identified precomputed tag.
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62-205. -205. (canceled)
Specification