SECURE JPEG

摘要

A digital imaging method, Secure JPEG, is disclosed for providing security for systems using the JPEG standard that is essentially equivalent to the JPSEC standard. Secure JPEG is an open and flexible standardized framework to secure JPEG images. Its goal is to allow the efficient integration and use of security tools enabling a variety of security services such as confidentiality, integrity verification, source authentication or conditional access. In other words, Secure JPEG aims at accomplishing for JPEG what JPSEC enables for JPEG 2000. Secure JPEG provides three specific examples of security services. The first security service addresses integrity verification using a hash function to compute local digital signatures. The second security service considers the use of encryption for confidentiality. Finally, the third security service describes a scrambling technique. As such, the present invention is able to provide security for the ever popular JPEG standard.