| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for generating passwords for a hierarchy of users. SOLUTION: The method and system manage a hierarchy of passwords for users accessing a hierarchy of access control devices. First, a codeword is acquired and a syndrome of the codeword is determined. Next, the codeword is randomly modified with a probability p to produce a modified codeword. The modified codeword is selected and assigned to a user as a password, if the modified codeword is recoverable. COPYRIGHT: (C)2010,JPO&INPIT |
