Classifications

• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C9/00—Individual registration on entry or exit
  • G07C9/30—Individual registration on entry or exit not involving the use of a pass
  • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
  • G07C9/33—Individual registration on entry or exit not involving the use of a pass in combination with an identity check by means of a password

Definitions

• the present invention relates to methods of production an access code according to the preamble of the claim 1.
• the document EP 0 552 392 B1 discloses a method for mutual Authentication of a chip card and a terminal disclosed.
• a user of a terminal just as important to know that he is actually in front of a terminal of his bank and not in front of a fake, which certainly spend money may, but whose purpose is to a Card identity and an associated password to come.
• the present invention is therefore based on the object a "Challenge Response" method for strong authentication indicate that it is easy to handle and from easily applicable to an average educated person is.
• the access code is generated by an elementary link known only to the person to be authenticated;
• a "challenge response" method is created for strong authentication that is easy to use and can be used by a wide audience and, in addition, resists the known skimming attacks.
• This first embodiment is based on the elementary link division: Issued number ( «challenge») 97843 Secret fixed number (PIN) 123456 quotient 1.26177652 Access code ( «response») 261776
• the 6 most significant digits after the decimal point are extracted and used as the access code.
• the person to be authenticated has a pocket calculator or a mobile phone with an integrated pocket calculator and calculates the quotient with these means.
• the number output is a prime number or only decomposable into a few prime factors so that the division does not happens to yield an integer result. if the output number is not prime, the prime factorization should be have at most three prime factors.
• This second embodiment is based on the elementary link multiplication: Issued number ( «challenge») 67.8901 Secret fixed number (PIN) 123456 product 8,381,440.186 Access code ( «response») 381440
• This third exemplary embodiment is based on the elementary combination of digit-wise magnitude-complements to form a fixed digit: Issued number ( «challenge») 283559 Secret fixed number (PIN) 7 Complement ( «response») 514222
• this fourth exemplary embodiment is based on the elementary combination of digit-wise complementation to the digits of a fixed number: Issued number ( «challenge») 283559 Secret fixed number (PIN) 123456 complement 160103
• Issued number «challenge»
• Secret fixed number PIN 123456 complement 160103
• the Invention also applies to general characters, e.g. a string of letters be applied, for example, in a sequence out of four letters issued four letters for authentication must be entered, which is in their order to differentiate a given step. This will be below described:

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)

Priority Applications (1)

Applications Claiming Priority (1)

Publications (1)

Family

ID=34925120

Family Applications (1)

Country Status (1)

Citations (10)

• 2004
  • 2004-05-25 EP EP04012323A patent/EP1600899A1/fr not_active Withdrawn

Patent Citations (10)

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