Method and apparatus for authenticating the use of software

Details Method and apparatus for authenticating the use of software Method and apparatus for authenticating the use of software

1995-05-08

1997-07-29

Gregory, Bernarr E.

Cryptography

Cryptanalysis

380 23, 380 25, 380 29, 380 49, 380 50, 34082531, 34082534, H04L 900, H04L 906

Patent

active

056527934

ABSTRACT:
A hardware encoding circuit which generates a code value unique to a particular computer, stores a password unique to an application program and to the particular computer, tests the stored password against a verification value generated by the hardware encoding program each time the application program is run, and generates an error signal if the stored password and the verification value do not match.

REFERENCES:
patent: 4599489 (1986-07-01), Cargile
patent: 4609777 (1986-09-01), Cargile
patent: 5012514 (1991-04-01), Renton
patent: 5058162 (1991-10-01), Santon et al.
patent: 5282247 (1994-01-01), McLean et al.
patent: 5375243 (1994-12-01), Parzych et al.

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