EP 0112944 A1 19840711 - Testing the validity of identification codes.
Title (en)
Testing the validity of identification codes.
Title (de)
Prüfen der Gültigkeit von Erkennungskoden.
Title (fr)
Examen de la validité de codes d'identification.
Publication
Application
Priority
EP 82306989 A 19821230
Abstract (en)
A method and apparatus for testing the validity of personal identification numbers (PIN) entered at a transaction terminal of an electronic funds transfer network in which the PIN is not transmitted through the network. The PIN and the personal account number (PAN) are used to derive an authorisation parameter (DAP). A unique message is sent with the PAN to the host processor where the PAN is used to identify a valid authorisation parameter (VAP). The VAP is used to encode the unique message and the result (a message authentication code MAC) transmitted back to the transaction terminal. The terminal generates a parallel message authentication code by using the DAP to encode the unique message. The two MAC's are compared and the result of the comparison used to determine the validity of the PIN.
IPC 1-7
IPC 8 full level
G06Q 40/00 (2006.01); G07D 9/00 (2006.01); G07F 7/10 (2006.01); G07F 7/12 (2006.01)
CPC (source: EP)
G07F 7/1016 (2013.01)
Citation (search report)
- [Y] WO 8202446 A1 19820722 - CIT ALCATEL [FR], et al
- [Y] EP 0007002 A1 19800123 - IBM [US]
- [AD] GB 2020513 A 19791114 - ATALLA TECHNOVATIONS
- [A] EP 0029894 A2 19810610 - IBM [US]
- [A] EP 0028965 A1 19810520 - CII HONEYWELL BULL [FR]
- [A] IBM TECHNICAL DISCLOSURE BULLETIN, vol. 16, no. 8, January 1974, pages 2539-2540, New York, USA
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0112944 A1 19840711; EP 0112944 B1 19870304; DE 3275604 D1 19870409; JP H049355 B2 19920219; JP S59123968 A 19840717
DOCDB simple family (application)
EP 82306989 A 19821230; DE 3275604 T 19821230; JP 15422983 A 19830825