The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 1995
Filed:
Dec. 14, 1993
Kenneth C Kung, Cerritos, CA (US);
Erwin W Bathrick, Brea, CA (US);
Cheng-Chi Huang, Irvine, CA (US);
Mae-Hwa Ma, Cerritos, CA (US);
Todd E Matthews, Santa Ana, CA (US);
James E Zmuda, Lake Forest, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
An authentication method that permits a user and a file serving workstation to mutually authenticate themselves. This is accomplished by exchanging a random number that is encrypted by a password that is known to the user and stored in a password file on the file serving workstation. A logon ID is sent from the client workstation to the server workstation. The stored user password corresponding to the user ID is retrieved from the password file. A random number is created that is encrypted by a symmetric encryption algorithm on the server workstation using the retrieved user password, and which provides an encrypted password. The user is then requested to enter the password into the user workstation. The entered password is used to decrypt the encrypted password received from the server workstation and retrieve the random number therefrom to authenticate the server workstation. The random number is then used as the encryption and decryption key for communication between the user and server workstations. An encrypted message is transmitted using the random number from the client workstation to the server workstation. The encrypted message is decrypted at the server workstation to authenticate the user.