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Cryptomeria cipher

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The Cryptomeria cipher, also called C2, is a proprietary block cipher defined and licensed by the 4C Entity. [1]

27 relations: Block cipher, Block size (cryptography), Boomerang attack, Broadcast flag, Content Protection for Recordable Media, Content Scramble System, Data Encryption Standard, Digital rights management, Digital video recorder, DVD-Audio, DVD-RAM, DVD-Video, DVD-VR, Feistel cipher, High-definition television, Key size, Lars Ramkilde Knudsen, Media Key Block, PDF, Peer review, Proprietary software, S-box, Secure Digital, Symmetric-key algorithm, Technical University of Denmark, Technische Universität Darmstadt, 4C Entity.

Block cipher

In cryptography, a block cipher is a deterministic algorithm operating on fixed-length groups of bits, called a block, with an unvarying transformation that is specified by a symmetric key.

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Block size (cryptography)

In modern cryptography, symmetric key ciphers are generally divided into stream ciphers and block ciphers.

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Boomerang attack

In cryptography, the boomerang attack is a method for the cryptanalysis of block ciphers based on differential cryptanalysis.

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Broadcast flag

A broadcast flag is a set of status bits (or a "flag") sent in the data stream of a digital television program that indicates whether or not the data stream can be recorded, or if there are any restrictions on recorded content.

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Christmas

Christmas is an annual festival commemorating the birth of Jesus Christ,Martindale, Cyril Charles.

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Christmas and holiday season

The Christmas season, also called the festive season, or the holiday season (mainly in the U.S. and Canada; often simply called the holidays),, is an annually recurring period recognized in many Western and Western-influenced countries that is generally considered to run from late November to early January.

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Christmas Eve

Christmas Eve is the evening or entire day before Christmas Day, the festival commemorating the birth of Jesus.

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Christmas traditions

Christmas traditions vary from country to country.

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Content Protection for Recordable Media

Content Protection for Recordable Media and Pre-Recorded Media (CPRM/CPPM) is a mechanism for controlling the copying, moving and deletion of digital media on a host device, such as a personal computer, or other player.

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Content Scramble System

The Content Scramble System (CSS) is a digital rights management (DRM) and encryption system employed on many commercially produced DVD-Video discs.

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Data Encryption Standard

The Data Encryption Standard (DES) is a symmetric-key algorithm for the encryption of electronic data.

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Digital rights management

Digital rights management (DRM) is a set of access control technologies for restricting the use of proprietary hardware and copyrighted works.

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Digital video recorder

A digital video recorder (DVR) is an electronic device that records video in a digital format to a disk drive, USB flash drive, SD memory card, SSD or other local or networked mass storage device.

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DVD-Audio

DVD-Audio (commonly abbreviated as DVD-A) is a digital format for delivering high-fidelity audio content on a DVD.

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DVD-RAM

DVD-RAM (DVD Random Access Memory) is a disc specification presented in 1996 by the DVD Forum, which specifies rewritable DVD-RAM media and the appropriate DVD writers.

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DVD-Video

DVD-Video is a consumer video format used to store digital video on DVD discs, and is the dominant consumer video format in Asia, North America, Europe, and Australia.

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DVD-VR

The DVD-VR standard defines a logical format for video recording on DVD-R, DVD-RW, and DVD-RAM style media, including the dual layer versions of these media.

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Feistel cipher

In cryptography, a Feistel cipher is a symmetric structure used in the construction of block ciphers, named after the German-born physicist and cryptographer Horst Feistel who did pioneering research while working for IBM (USA); it is also commonly known as a Feistel network.

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High-definition television

High-definition television (HDTV) is a television system providing an image resolution that is of substantially higher resolution than that of standard-definition television, either analog or digital.

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Key size

In cryptography, key size or key length is the number of bits in a key used by a cryptographic algorithm (such as a cipher).

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Lars Ramkilde Knudsen

Lars Ramkilde Knudsen (born 21 February 1962) is a Danish researcher in cryptography, particularly interested in the design and analysis of block ciphers, hash functions and message authentication codes (MACs).

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Media Key Block

The Media Key Block (MKB) is one of the keys included inside the copying protection system (DRM) AACS.

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New Year

New Year is the time or day at which a new calendar year begins and the calendar's year count increments by one.

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New Year's Day

New Year's Day, also called simply New Year's or New Year, is observed on January 1, the first day of the year on the modern Gregorian calendar as well as the Julian calendar.

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New Year's Eve

In the Gregorian calendar, New Year's Eve (also known as Old Year's Day or Saint Sylvester's Day in many countries), the last day of the year, is on 31 December which is the seventh day of Christmastide.

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PDF

The Portable Document Format (PDF) is a file format developed in the 1990s to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems.

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Peer review

Peer review is the evaluation of work by one or more people of similar competence to the producers of the work (peers).

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Proprietary software

Proprietary software is non-free computer software for which the software's publisher or another person retains intellectual property rights—usually copyright of the source code, but sometimes patent rights.

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S-box

In cryptography, an S-box (substitution-box) is a basic component of symmetric key algorithms which performs substitution.

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Secure Digital

Secure Digital (SD) is a non-volatile memory card format developed by the SD Card Association (SDA) for use in portable devices.

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Symmetric-key algorithm

Symmetric-key algorithms are algorithms for cryptography that use the same cryptographic keys for both encryption of plaintext and decryption of ciphertext.

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Technical University of Denmark

The Technical University of Denmark (Danmarks Tekniske Universitet), often simply referred to as DTU, is a university in Kongens Lyngby, just north of Copenhagen, Denmark.

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Technische Universität Darmstadt

The Technische Universität Darmstadt (unofficially Technical University of Darmstadt or Darmstadt University of Technology), commonly referred to as TU Darmstadt, is a research university in the city of Darmstadt, Germany.

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2018

2018 has been designated as the third International Year of the Reef by the International Coral Reef Initiative.

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2019

2019 (MMXIX) will be a common year starting on Tuesday of the Gregorian calendar, the 2019th year of the Common Era (CE) and Anno Domini (AD) designations, the 19th year of the 3rd millennium, the 19th year of the 21st century, and the 10th and last year of the 2010s decade.

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4C Entity

The 4C Entity (which should be read out as "the four company entity") is a consortium formed by IBM, Intel, Matsushita and Toshiba to establish a common platform for digital rights management schemes.

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Redirects here:

4C Cipher, 4C cipher, 4c Cipher, 4c cipher, C2 Cipher, C2 cipher, Cryptomeria Cipher.

References

[1] https://en.wikipedia.org/wiki/Cryptomeria_cipher

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