User presence verification with single password across applicati

Details User presence verification with single password across applicati User presence verification with single password across applicati

1996-10-23

1999-04-06

Cangialosi, Salvatore

Cryptography

Particular algorithmic function encoding

Nbs/des algorithm

H04L 900

Patent

active

058928286

ABSTRACT:
A technique verifies the presence of a user to applications stored on a distributed network system using a single password. The technique generally comprises computing a one-way hash value of the password that is initially provided by the user to a workstation during a login procedure. This initial hash value is stored by the workstation so that it may be readily accessible for authenticating the user to other applications of the system. These other applications query the user as to its identity by issuing an operating system application programming interface (API) call that specifies, e.g., "quiz user for password". The API call invokes a routine that requests the user's password and, in response to that password, hashes it and compares the resulting hash value with the stored hash value. If the values match, the user is reliably authenticated.

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