Electronic Authority Variation

The problem of authorization was raised in 1990 by Fischer for he confirmation of the originality of source. Russell in 1994 described the problem in detail and suggested various options available to the receiver. He suggested some basic principles of authorization at source like auditing by receiver, trusted third party originator, and self audit. He further categorized authorization in two parts i.e. person based authorization and rule based authorization. Person based authorization uses digital signatures and certificates, where as a rule based authorization is based on rules provided to the receiver for verification of authorization.