Modifying message data and generating random number digital signature within computer chip

a random number and message data technology, applied in the field of entity authentication, can solve the problems of exposing the secret or biometric value itself to a greater risk of theft, fraudulent use of a private key to generate a digital signature of an ec, and currently cannot be detected

a random number and message data technology, applied in the field of entity authentication, can solve the problems of exposing the secret or biometric value itself to a greater risk of theft, fraudulent use of a private key to generate a digital signature of an ec, and currently cannot be detected

US20020016913A1Inactive Publication Date: 2002-02-07FIRST DATA
99 Cites 175 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Modifying message data and generating random number digital signature within computer chip
  • Modifying message data and generating random number digital signature within computer chip
  • Modifying message data and generating random number digital signature within computer chip

Examples

Experimental program
Comparison scheme
Effect test

embodiment 200

[0132] A first preferred embodiment 200 of the present invention is illustrated in FIG. 2a, wherein an EC 210 including a message from a sender 220 is received by a recipient represented by an electronic apparatus 230, and wherein a device 240 receives input representing verification data (VD) 250 at a device interface 252. The device 240 includes a verification component therein that maintains data (PD) 270 of the sender 220 prestored in memory 254 of the device 240. The verification data 250 and prestored data 270 represent Secret or biometric values.

[0133] The verification component identifies at 256 a current verification status of the device 240 based on a comparison of the verification data 250 with the prestored data 270. Upon receipt of a signal (S) 280, the last identified (i.e., "current") verification status of the device 240 is communicated to the recipient by outputting from the device 240 an indicator 260 that then is transmitted to the recipient in association with th...

embodiment 400

[0144] A second preferred embodiment 400 of the present invention is illustrated in FIG. 4a, wherein an EC 410 including a message from a sender 420 is received by a recipient represented by an electronic apparatus 430, and wherein a device 440 receives input representing verification data (VD) 450 at a device interface 452. The device 440 includes a verification component therein that maintains data (PD) 470 of the sender 420 prestored in memory 454 of the device 440. The verification data 450 and prestored data 470 represent Secret or biometric values.

[0145] The verification component identifies at 456 a current verification status of the device 440 based on a comparison of the verification data 450 with the prestored data 470. Upon receipt of a signal (S) 480, the last identified (i.e., "current") verification status of the device 440 is communicated to the recipient by outputting from the device 440 an indicator 460 that then is transmitted to the recipient in association with t...

embodiment 600

[0158] A third preferred embodiment 600 of the present invention is illustrated in FIG. 6a, wherein an EC 610 including a message from a sender 620 is received by a recipient represented by an electronic apparatus 630, and wherein a device 640 receives input representing verification data (VD) 650 at a device interface 652. The device 640 includes a verification component therein that maintains data (PD) 670 of the sender 620 prestored in memory 654 of the device 640. The verification data 650 and prestored data 670 represent Secret or biometric values.

[0159] The verification component identifies at 656 a current verification status of the device 640 based on a comparison of the verification data 650 with the prestored data 670. Upon receipt of a signal (S) 680, the last identified (i.e., "current") verification status of the device 640 is communicated to the recipient by outputting from the device 640 an indicator 660 that then is transmitted to the recipient in association with th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method of generating a digital signature within a computer chip includes receiving data representing a message, and generating a digital signature for the message by modifying the message data with additional data, calculating a hash value of the modified message, and encrypting the hash value using a private key of a public-private key pair. The additional data includes data prestored within content searchable memory of the computer chip and a verification status of the computer chip. The verification status is identified out of a plurality of predefined verification statuses as a function of verification data input into the computer chip and data prestored within the computer chip. An identified verification status is used by one entity in determining risk regarding an electronic communication from another entity, especially where the electronic communication comprises a request and a digital signature generated by the computer chip.

Description

I. CROSS-REFERENCE TO RELATED APPLICATIONS[0001] This patent application claims priority in the United States under 35 U.S.C. 119, and under the Paris Convention worldwide, to the benefit of the filing date of Wheeler et al. U.S. provisional patent application serial No. 60 / 223,076, which was filed on Aug. 4, 2000, and which is incorporated herein by reference. This application also incorporates herein by reference each of four international patent applications and two U.S. patent application to Anne and Lynn Wheeler filed concurrently herewith on Aug. 6, 2001, in the U.S. Patent & Trademark Office and bearing serial number PCT / US______ / ______(entitled "Person-Centric Account-Based Digital Signature System") and serial number 09 / _______,_______ (entitled "Account-Based Digital Signature (ABDS) System"); serial number PCT / US_______ / _______(entitled "Entity Authentication in Electronic Communications by Providing Verification Status of Device"); serial number PCT / US______ / ______(enti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
07 Feb 2002
Publication
US20020016913A1
IPC
G06F12/14; G06F19/00; G06F21/00; G06F21/32; G06F21/34; G06Q20/00; G07F7/10; G09C1/00; H04L9/00; H04L9/10; H04L9/32; H04L29/06
CPC
G06F21/32; G06F2221/2113; G06Q20/00; G06Q20/02; G06Q20/04; G06Q20/0855; G06Q20/12; G06Q20/341
Inventors
WHEELER, LYNN HENRY; WHEELER, ANNE M.