Unlock instant, AI-driven research and patent intelligence for your innovation.

Smartcard with cryptographic functionality and method and system for using such cards

A technology of smart cards and subsystems, applied in the field of smart cards, can solve the problems of expensive smart cards, expensive and complex solutions, etc.

Inactive Publication Date: 2011-06-08
HEWLETT PACKARD DEV CO LP
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Using this method to provide a smart card for providing multiple encryption functions is too expensive and complicated, because it requires the smart card to generate and maintain many different keys, each key is used for a specific purpose
[0009] It is an object of the present invention to provide a smart card which can be used to provide multiple encrypted services and which is less expensive and complex than the previously proposed solutions

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Smartcard with cryptographic functionality and method and system for using such cards
  • Smartcard with cryptographic functionality and method and system for using such cards
  • Smartcard with cryptographic functionality and method and system for using such cards

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0098] best practice

[0099] figure 2 Members A and B of an organization comprising a finance department 22 , a legal department 23 and a security department 24 are depicted. Members of this organization have their own smart cards, in figure 2The smart cards of members A and B are denoted 10A and 10B, respectively. Members A and B also have respective computers 20A and 20B, each of which includes a smart card interface that enables the smart card to be operatively coupled to the computer.

[0100] The various departments of the organization are interconnected via the network 25 . The computers 20A and 20B are also connected to the network 25 , and the printer 21 is also connected to the network 25 . The printer 21 has a smart card interface through which a smart card can be coupled to the printer.

[0101] The form of the member's smart card will now be described with reference to member A's smart card 10A, the other smart cards being essentially the same. The smart c...

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

The present invention provides a smartcard (10A) holding a secret (SA) associated with the member (A) concerned and arranged to map an input string (str) to a first element (PA) of an algebraic group according to a known mapping function, to multiply the first element (PA) by the secret (SA) to form a second element (PA) of the algebraic group such that there exists a computable bilinear map for the first and second elements, and to output this second element (RA); as being provided with selection of limited functionality, the smartcard (10A) can be brought into play in respect of a variety of cryptographic services, such as encryption, decryption and signing cryptographic services. Thus the smartcard (10A) is suitable to be utilized in an organization which requires a plurality of cryptographic services.

Description

technical field [0001] The present invention relates to a smart card with encryption function and a method and system for providing encryption services in organizations using the smart card. [0002] The term "organization" as used herein is intended to cover any formal or informal group, such as a business enterprise, interest group, international organization or nation. Furthermore, the term "smart card" as used herein is intended to include any small-sized object (such as a credit card-sized object) incorporating processing functionality, usually on a microcontroller, using physical contact devices or devices such as inductive, capacitive, photoelectric or Similar non-contact means the object of small size is externally accessible through any suitable interface. The processing functions may be based on a program-controlled processor or dedicated circuitry. The smart card may be powered in any suitable manner such as by an external power source via physical contact, by on-...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/30
CPCH04L9/3013H04L9/3073H04L2209/56H04L2209/12
Inventor 陈利群K·A·哈里森M·卡萨萨蒙特
Owner HEWLETT PACKARD DEV CO LP