The copyrights of digital contents authors are infringed upon by illegitimate copying and distribution of digital contents, which threats the growth of the digital contents market. Therefore, technologies for legally protecting the copyrights of softw...
The copyrights of digital contents authors are infringed upon by illegitimate copying and distribution of digital contents, which threats the growth of the digital contents market. Therefore, technologies for legally protecting the copyrights of software authors are needed. To satisfy such needs, we propose an authentication model that registers software on a computer program registration system and protects the software itself and the corresponding copyrights.
The proposed model offers single and multiple authentication policies to protect the works and their copyrights. In case a legal dispute regarding the copyrights occurs in the future, it includes non-refutability function for user requests and integrity function for proving that the works and registered information is identical to the original. The model also offers protection of data confidentiality over networks and traffic security.
User agents for the works and copyright protection system adopted compression and encryption/decryption algorithms to offer works integrity. Based on a management server and PKI, hi-directional authentication is performed using an authentication certificate. The session key set through the security channel is used as the encryption key. The session key is managed not as a temporary key, but in such a way that it can be used when checking the original of the works in the future. In addition, the encrypted and transmitted works is managed in a works management database. The database backs up the works and manages it by applying a message authentication code model to verify the integrity. The copyright of the author is electronically signed using a private key. The copyright is managed separately based on whether it is owned by a single author or multiple authors. In case of a single-author copyright, only one electronic signature is needed, whereas for a multi-author copyright, the signatures of all authors are required. The policy used in the multi-author case is capsulation by electronic signatures on top of an electronic signature.
The proposed program copyright certification system based on the PKI security service provides confidentiality using compression and encryption/decryption. The system is also capable of electronic signature, authentication, and non-repudiation using encryption by private keys. Also, system security is provided by offering integrity service using message authentication modes.