DE3485804D1 - Systeme zur blindunterschrift. - Google Patents

Systeme zur blindunterschrift.

Info

Publication number
DE3485804D1
DE3485804D1 DE8484201160T DE3485804T DE3485804D1 DE 3485804 D1 DE3485804 D1 DE 3485804D1 DE 8484201160 T DE8484201160 T DE 8484201160T DE 3485804 T DE3485804 T DE 3485804T DE 3485804 D1 DE3485804 D1 DE 3485804D1
Authority
DE
Germany
Prior art keywords
supplier
transformed
signer
systems
messages
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE8484201160T
Other languages
English (en)
Other versions
DE3485804T2 (de
Inventor
David Prof Dr Chaum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blucora Inc
Original Assignee
SECURITY TECHN CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SECURITY TECHN CORP filed Critical SECURITY TECHN CORP
Application granted granted Critical
Publication of DE3485804D1 publication Critical patent/DE3485804D1/de
Publication of DE3485804T2 publication Critical patent/DE3485804T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
    • G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
    • G07F7/10—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means together with a coded signal, e.g. in the form of personal identification information, like personal identification number [PIN] or biometric data
    • G07F7/1016—Devices or methods for securing the PIN and other transaction-data, e.g. by encryption
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • H04L9/3257—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures using blind signatures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
DE8484201160T 1983-08-22 1984-08-13 Systeme zur blindunterschrift. Expired - Lifetime DE3485804T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/524,896 US4759063A (en) 1983-08-22 1983-08-22 Blind signature systems

Publications (2)

Publication Number Publication Date
DE3485804D1 true DE3485804D1 (de) 1992-08-13
DE3485804T2 DE3485804T2 (de) 1993-02-11

Family

ID=24091095

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484201160T Expired - Lifetime DE3485804T2 (de) 1983-08-22 1984-08-13 Systeme zur blindunterschrift.

Country Status (4)

Country Link
US (1) US4759063A (de)
EP (1) EP0139313B1 (de)
AT (1) ATE78127T1 (de)
DE (1) DE3485804T2 (de)

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Also Published As

Publication number Publication date
EP0139313A3 (en) 1987-02-04
US4759063A (en) 1988-07-19
EP0139313B1 (de) 1992-07-08
DE3485804T2 (de) 1993-02-11
ATE78127T1 (de) 1992-07-15
EP0139313A2 (de) 1985-05-02

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