PROTECTION OF A PORTABLE OBJECT AGAINST DENIAL OF SERVICE TYPE ATTACKS.

摘要

The entity requesting the service is verified whether it is an authorized entity for accessing the service based on an algorithm involving credential. When certain number of verification steps fail, the credential associated with the service are blocked and waiting during predetermined duration before allowing new verification step. Independent claims are also included for the following: (1) portable object such as smart-card; and (2) computer program product comprising recorded medium storing program for protecting portable object against denial of service attack.