The need for protection of information, one of the most valuable assets in the modern society, has increased dramatically in the last decade. ‘However, hand by hand with any technological and economic advancement new fraud and crime-committing methods appear, targeting at our valuable information assets. Cryptography is one of the key technologies for ensuring confidentiality, integrity and availability of information, however it is being also used in order to cover criminal activities and evade wiretapping by Law Enforcement Authorities.
The use of cryptography as a means of protection of privacy has created the need for establishing a Legal as well as technological framework in order to perform Lawful Interception (LI). Lawful interception (LI) is the legally sanctioned official access to private communications, such as telephone calls or e-mail messages. The usage of Lawful Interception has been and still is one of the most controversial issues of modern society.