Method and system for controlling access to services

摘要

A method and system control access to services. Identity and key information of a delegatee are determined. Permission relating to the services is delegated. The permission is represented using a digital signature. The delegator verifies the identity and key information through physical presence of the delegatee. Alternatively, key information is received from a delegatee over a computer network. A hash of the key information is taken and the hash is verbally confirmed with the delegatee. Permission to access the services is sent by a delegator to the delegatee, wherein the permission is represented using a digital signature. After that, the delegatee is provided access to the services.