encryption

Security engineering is one of few technical endeavors in which you deal with an adversary. There are a few other domains such as electronic warfare or fire prevention. Working against an adversary in this way is like playing a twisted game of chess. As the game begins, the security engineer is aware of most of […]

There are four main concepts involved in securing premium audio/visual content: Authentication Authorization Encryption Digital Rights Management (DRM) Authentication is the act of verifying the identity of the individual requesting playback (e.g. username/password). Authorization involves ensuring that individual’s right to view that content (e.g. subscription, rental). Encryption is the scrambling of audio/video samples; decryption keys […]