Video encryption technology is a combination of cryptography and video technology. Video encryption has become a specialised research branch in data encryption files because of its particular requirements and the special properties of video data. This book introduces several aspects of video encryption related research methods and technology solutions. A thorough description of video encryption techniques included its performance requirements, principles for designing a secure video encryption algorithm, the primary encryption algorithms and analysis, the latest research achievement, as well as its performance evaluations, novel applications are given. In addition, the open problems and potential research area of video encryption is discussed in this unique book.