Method of protecting a computer system from record-playback brea

Details Method of protecting a computer system from record-playback brea Method of protecting a computer system from record-playback brea

1997-09-26

2000-07-04

Couso, Jose L.

Image analysis

Applications

Personnel identification

382115, 382128, G06K 900

Patent

active

060849770

ABSTRACT:
A record-playback attack on a security system involves recording authorisation information such as passwords and playing them back to the server at a later time to unlawfully access a system. A method is disclosed for detecting record-playback of biometric information. When biometric information is provided to a server, it is always slightly different due to the nature of human input, health, etc. When two biometric input samples are substantially identical, a record-playback attack on system security is suspected and access is denied.

REFERENCES:
patent: 4998279 (1991-03-01), Weiss
patent: 5161204 (1992-11-01), Hutcheson et al.
patent: 5280527 (1994-01-01), Gullman et al.
patent: 5386104 (1995-01-01), Sime
patent: 5426708 (1995-06-01), Hamada et al.
patent: 5466918 (1995-11-01), Ray et al.

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