# Tags

A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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 tea× 3 a block cipher by David Wheeler and Roger Needham of the Cambridge Computer Laboratory; notable for its simplicity of description and implementation. speck× 2 A family of lightweight symmetric block-ciphers designed for good performance in constrained software devices with block sizes ranging from 32 to 128 bits and key sizes ranging from 64 to 256 bits. voip× 2 a technology that allows telephone calls to be made over computer networks like the Internet. xml-encryption× 2 Encryption of data represented in XML according to the W3C Specification. hybrid× 2 Something of mixed origin. In cryptography, typically a cipher system containing both public key and secret key component ciphers, where the public key system is used only to transport the key for the… frequency-analysis× 2 the study of letters or groups of letters contained in a ciphertext in an attempt to partially reveal the message. hermitian-curves× 2 hashed-elgamal× 2 education× 2 Questions related to the teaching and learning of cryptography. ephemeral× 2 short-lived, like (for example) an ephemeral key, which is a key that only exists within the lifetime of a communication session. cpu× 2 the most important hardware component of a computer system, since it contains the circuitry necessary to interpret and execute instructions. pkcs8× 2 Public-Key Cryptography Standard, number 8, describes the Private-Key Information Syntax Standard which is used to carry (encrypted or unencrypted) private certificate keypairs. See [RFC 5208](http://… skipjack× 2 a 64-bit block cipher developed by the U.S. National Security Agency (NSA). s-mime× 2 Secure/Multipurpose Internet Mail Extensions, or short S-MIME, is a standard for public key encryption and signing of MIME data. secure-index× 2 remote-data-checking× 2 Remote data checking protocols allow a client that has stored data at an untrusted server to efficiently verify that the server possesses the original data without retrieving it. key-rotation× 2 Key rotation refers to a schedule or process for changing the key material. key-escrow× 2 md4× 2 RFC 1320 — the MD4 message-digest algorithm — is a cryptographic hash function with a digest length is 128 bits, developed by Ronald Rivest in 1990. miyaguchi-preneel× 2 The Miyaguchi-Preneel scheme, based on a one-way compression function, was proposed around 1989 by Preneel, and independently by Miyaguchi.Ohta, and Iwata. monotone-access-structure× 2 Let $\Omega$ be a set of entities. An *access structure* $\mathcal{A}$ is a collection of nonempty subsets of the power set $P(\mathcal{A})$. This structure is called *monotone*, if $A\in\mathcal{A}$ … negligible× 2 so unimportant, that it isn't worth considering. For example, if a flaw in a cryptographic algorithm is considered to be negligible, it is insignificant to both the … niederreiter a variation of the McEliece Cryptosystem and is equivalent to McEliece from a security point of view, but encryption using Niederreiter is about ten times faster than … oblivious-ram a useful primitive that allows a client to hide its data access patterns from an untrusted server in storage outsourcing applications. pbkdf a Password Based Key Derivation Function, which can be used to derive key data or derive a "password hash" from a salt and password. md2 RFC 1319 — The MD2 Message-Digest Algorithm is a cryptographic hash function which is no longer considered secure. mars a 128-bit block cipher with variable key size of between 128 and 448 bits. It has a heterogeneous structure: several rounds of a cryptographic core are “jacketed” by un-keyed mixing rounds, to… rc6 a 128-bit block cipher, formerly an AES candidate, that makes heavy use of data-dependent rotations. rsap a variant of RSA, meant to increase the RSA public modulus size while keeping computation cost moderate. sha-3-competition SHA-3 Competition (2007-2012) was a competition initiated by NIST as a call for a new cryptographic hash algorithm for standardization purposes. cramer-shoup Cramer-Shoup asymmetric encryption (an extension of ElGamal) crl one of two common methods when using a public key infrastructure for maintaining access to servers in a network. cryptdb cryptoapi 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… acoustic-cryptanalysis a type of side channel attack which exploits sounds emitted by computers or machines. access-control a possible goal of cryptography, where the idea is to restrict access to documents, equipment, locations, or keys to individuals who are authorized such access.