Method and apparatus for verification of passwords

Details Method and apparatus for verification of passwords Method and apparatus for verification of passwords

G - Physics

06

F

354/221

G06F 12/14 (2006.01) G06F 12/00 (2006.01) G06F 21/00 (2006.01) G07C 9/00 (2006.01)

Patent

CA 2037071

METHOD AND APPARATUS FOR VERIFICATION OF PASSWORDS Abstract of the Disclosure Methods and apparatus for verifying the acceptability of a password proposed by a user of a secure system. The system stores a compressed version of a group of unacceptable passwords in a table of indicators. A mapper assigns indicators to passwords, such that more than one password may be mapped to a indicator. To initialize the system, an initializer applies the mapper to each unacceptable password of the group, and sets the indicators of the table that are assigned to each unacceptable password. Subsequently, a verifier applies the mapper to a proposed password and checks whether the indicator assigned to the proposed password is set. If the indicator is not set, it is determined without error that the proposed password is not in the group of unacceptable passwords, and may thus be assigned privileges in the secure system. Fig. 1

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