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Copy protection or content protection covers various mechanism, such as DRM and software license keys, used to restrict the unauthorized copying or use of software or digital media.
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the most important hardware component of a computer system, since it contains the circuitry necessary to interpret and execute instructions.
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Cramer-Shoup asymmetric encryption (an extension of ElGamal)
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a non-cryptographic error-detecting code. While CRCs occasionally appear as parts of a cryptosystem, questions purely about CRCs and other non-cryptographic checksums ar…
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one of two common methods when using a public key infrastructure for maintaining access to servers in a network.
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Analysis of individual security aspects of a cipher or algorithm, not the security of a cipher or algorithm in general (which would lean towards “algorithm-design”).
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an SQL-Aware encrypted database system from MIT
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The Cryptographic Application Programming Interface is an application programming interface included with Microsoft Windows operating systems that provides services to enable developers to secure Wind…
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Cryptographic hardware enables the handling of cryptographic tasks and/or problems using hardware instead of software solutions.
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A cryptographically secure pseudorandom number generator is a pseudo-random number generator with properties that make it suitable for use in cryptography.
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an encryption mode, that builds a random-access stream-cipher from a block-cipher.
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A structured set of data held in a computer, esp. one that is accessible in various ways.
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Data privacy refers to (cryptographic) methods to prevent the disclosure of sensitive (identifying) information of persons.
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a type of cryptography that allows an encrypted text to be decrypted in two or more ways, depending on which decryption key is used.
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(or Data Encryption Standard), a (symmetric) block cipher using a 64 bit block size, with keys of size 56 bit, the standard US block cipher from 1976 to 2001.
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an extension of DES that attempts to foil brute force attacks
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a cryptosystem which always produces the same ciphertext for a given plaintext and key, even over separate executions of the encryption algorithm.
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a technique for defeating a cipher or authentication mechanism by trying to determine its decryption key or pass-phrase by trying hundreds or sometimes millions of likely possib…
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a form of cryptanalysis which studies cryptographic algorithms by observing how differences in input affect differences on output.
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an anonymous, non-authenticated key-agreement protocol.
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Diffusion refers to the property of an encryption primitive that small changes in the plaintext result in big changes in the ciphertext and vice-versa.
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Money that may be transferred electronically from one party to another during a transaction.
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the number of times a generator of a group must be multiplied by itself to produce a known number. By choosing certain groups, the task of finding a discrete l…
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Disk encryption protects information by encrypting every byte that is written to a HD or virtual disk volume.
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A distinguisher describes an adversary's advantage. In cryptography, an adversary's advantage is a measure of how successfully it can attack a cryptographic algorithm, by distinguishing it from an ide…
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a cryptanalysis method based on analysis of the correlation between the power consumption of a chip (in a smart card for example) and the secret key it contai…