发明名称 |
Method and system for proactive password validation |
摘要 |
An improved method for password validation comprising the steps of identifying bad passwords having one or more characters; computing a frequency of occurrence of bad password characters; computing a probability of occurrence T of the bad password characters within the bad passwords based upon the computed frequency of occurrence; identifying a proposed password having one or more characters; and comparing the proposed password characters with the probability of occurrence T of the bad password characters. The method further comprises the steps of establishing a validation threshold and validating the proposed password based upon the correspondence between (i) a value, BAp, reflecting the relationship between the probability of occurrence T of bad password characters within bad passwords and the proposed password characters and (ii) an established validation threshold. A Markov model is use to compute the probability of occurrence. The present invention also includes an improved password validation system.
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申请公布号 |
US5394471(A) |
申请公布日期 |
1995.02.28 |
申请号 |
US19930121852 |
申请日期 |
1993.09.17 |
申请人 |
BELL ATLANTIC NETWORK SERVICES, INC. |
发明人 |
GANESAN, RAVI;DAVIES, CHRISTOPHER I. |
分类号 |
G06F21/00;(IPC1-7):H04L9/00 |
主分类号 |
G06F21/00 |
代理机构 |
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主权项 |
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地址 |
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