By Borko Furht, Edin Muharemagic, Daniel Socek
Multimedia Encryption and Watermarking presents a finished survey of up to date multimedia encryption and watermarking thoughts, which permit a safe alternate of multimedia highbrow estate.
Part I, electronic Rights administration (DRM) for Multimedia, introduces DRM recommendations and versions for multimedia content material defense, and offers the main avid gamers. half II, Multimedia Cryptography, offers an outline of contemporary cryptography, with the point of interest on smooth snapshot, video, speech, and audio encryption suggestions. This booklet additionally offers a sophisticated notion of visible and audio sharing options. half III, electronic Watermarking, introduces the concept that of watermarking for multimedia, classifies watermarking functions, and evaluates numerous multimedia watermarking strategies and methods, together with electronic watermarking innovations for binary images.
Multimedia Encryption and Watermarking is designed for researchers and practitioners, in addition to scientists and engineers who layout and boost platforms for the safety of electronic multimedia content material. This quantity can be compatible as a textbook for graduate classes on multimedia security.
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Additional resources for Multimedia Encryption and Watermarking
If data is encrypted with a public key, it can only be decrypted using the corresponding private key, and vice versa. Today, all public-key cryptosystems rely on some computationally intractable problem. For example, the cryptosystem RSA [17,18] relies on the difficulty of factoring large integers, while the El-Gamal  cryptosystem relies on the discrete logarithm problem (DLP), which is the problem of finding a logarithm of a group element with generator base in a finite Abelian group. Public-key cryptosystems do not need to have a shared secret between the communicating parties.
Cryptographic techniques used for secret communication continued to develop throughout the medieval times, renaissance, and modern period until 1914. However, except for a few hobbyists, cryptography still did not find its use in the private sector and was primarily used for military and government purposes. It was not until the period of World War I and World War I1 when the use and development of cryptography exploded. In fact, the influence of cryptography and cryptanalysis on the outcome of the two wars was enormous.
These are a part of the adopted standard called Secure Hash Standard (SHS) . Other popular modern unkeyed cryptographic hash functions include, Message Digest 4 and 5 (MD4 and MD5), and RIPEMD-160. 7 Digital Signatures The number of applications for digital signatures is enormous. A digital signature allows u s to electronically sign a legal document, and in many instances, it provides better authentication than the old-fashioned ink-on-paper signature. In other words, it is generally An Overview of Modem Cryptography 49 much more difficult to forge a properly implemented digital signature than it is to forge a handwritten ink signature.
Multimedia Encryption and Watermarking by Borko Furht, Edin Muharemagic, Daniel Socek