EP 1104607 A1 20010606 - METHOD FOR AUTHENTICATING WITH SYMMETRICAL ALGORITHM
Title (en)
METHOD FOR AUTHENTICATING WITH SYMMETRICAL ALGORITHM
Title (de)
VERFAHREN ZUR AUTHENTIFIZIERUNG MIT HILFE EINES SYMMETRISCHEN ALGORITHMUS
Title (fr)
PROCEDE D'AUTHENTIFICATION A ALGORITHME SYMETRIQUE
Publication
Application
Priority
- FR 9901995 W 19990816
- FR 9810591 A 19980817
Abstract (en)
[origin: FR2782431A1] The authentication technique between two units, a card and card machine for instance, has a secret key in both sections. One unit sends the other a random number. Then the second unit chooses a random number based on the random key and a logic formula. A symmetrical cypher algorithm calculates another number. The modified number is sent back to the first unit. The first unit uses the symmetrical algorithm to determine whether the random number is authenticated (T) or found to be false (F).
IPC 1-7
IPC 8 full level
G06F 21/00 (2013.01); G06F 21/44 (2013.01); G06K 19/073 (2006.01); H04L 9/14 (2006.01); H04L 9/32 (2006.01)
CPC (source: EP)
H04L 9/3273 (2013.01)
Citation (search report)
See references of WO 0010287A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2782431 A1 20000218; FR 2782431 B1 20000929; AU 5173199 A 20000306; CN 1323478 A 20011121; EP 1104607 A1 20010606; JP 2002523923 A 20020730; MX PA01001783 A 20020722; WO 0010287 A1 20000224
DOCDB simple family (application)
FR 9810591 A 19980817; AU 5173199 A 19990816; CN 99812286 A 19990816; EP 99936740 A 19990816; FR 9901995 W 19990816; JP 2000565636 A 19990816; MX PA01001783 A 19990816