Global Patent Index - EP 1078139 A2

EP 1078139 A2 20010228 - AUTHENTICATION METHOD

Title (en)

AUTHENTICATION METHOD

Title (de)

VERFAHREN ZUR AUTHENTIFIKATION

Title (fr)

PROCEDE D'AUTHENTIFICATION

Publication

EP 1078139 A2 20010228 (DE)

Application

EP 99927720 A 19990426

Priority

  • DE 9901234 W 19990426
  • DE 19819232 A 19980429

Abstract (en)

[origin: WO9955991A2] The invention relates to a method which enables an authentication of a first instance (key) with regard to a second instance (lock). To this end, a first component of a sequence of numbers are transmitted from the lock to the key, said numbers being determined by means of an iterated one-way function. Using a trap door, the precedent component is established from the key, and is sent back to the lock. The lock tests whether the precedent component is correct. If this is the case, the key is successfully authenticated with regard to the lock. Otherwise, the authentication is not carried out.

IPC 1-7

E05B 49/00; G07F 7/12; H04L 9/32

IPC 8 full level

B60R 25/24 (2013.01); G07C 9/00 (2006.01); H04L 9/32 (2006.01)

CPC (source: EP)

B60R 25/24 (2013.01); G07C 9/00309 (2013.01); H04L 9/32 (2013.01); G07C 2009/00388 (2013.01); G07C 2009/00484 (2013.01); G07C 2009/00769 (2013.01); H04L 2209/84 (2013.01)

Citation (search report)

See references of WO 9955991A2

Designated contracting state (EPC)

DE FR GB SE

DOCDB simple family (publication)

WO 9955991 A2 19991104; WO 9955991 A3 19991216; EP 1078139 A2 20010228; JP 2002513220 A 20020508

DOCDB simple family (application)

DE 9901234 W 19990426; EP 99927720 A 19990426; JP 2000546123 A 19990426