Patent ID: 6991176

Claim:
A method for generating a personal identification number (PIN) having a number of N decimal digits, to be used for money cards and other security-requiring devices, comprising: generating the personal identification number from a binary number having L digits so that the personal identification number is randomly distributed over an available number domain, converting a first predefinable natural number n 1 of digits of the binary number into a first decimal number d 1 ; wherein: the first predefinable natural number n 1 of digits is selected so as to yield a first natural number z 1 such that a quotient 2 n1 /(z 1 *9) is close to 1; a first decimal digit of the personal identification number receives a value first decimal number d 1 modulo 9; and N− 1 further groups of a second predefinable number n 2 of digits of the binary number are converted each time into N− 1 decimal numbers second decimal number d 2 through Nth decimal number dN, the second predefinable number n 2 being selected so as to yield a second natural number z 2 such that a quotient 2 n2 /(z 2 *10) is close to 1, to satisfy a condition of 0≦2 n2 modulo 10<3, and decimal digits 2 through N of the personal identification number receive values di modulo 10, i=2 through N.