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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concerned with sending messages via electronic signals in the most efficient and error-free way.
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Fixed, more or less arbitrary parameter values that appear in the definitions of cryptographic schemes, such as fixed initialization vectors for hash functions or S-box tables for block ciphers.
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an encryption mode, that builds a self-synchronizing stream-cipher from a block-cipher.
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a one way membership function. It answers a query as to whether a potential candidate is a member of a set without revealing the individual members of the set.
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a language that defines the way data is sent across dissimilar communication systems.
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evident if, when an input is changed slightly (for example, flipping a single bit) the output changes significantly (e.g., half the output bits flip).
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a 128-bit, symmetrical block cipher jointly developed by Mitsubishi and NTT of Japan.
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short for Dual Elliptic Curve Deterministic Random Bit Generator; a pseudorandom number generator based on the elliptic curve discrete logarithm problem.
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a computer system with a dedicated function within a larger mechanical or electrical system, often with real-time computing constraints.
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The Schnorr Identification Protocol relies upon the security of the Discrete Logarithm Problem. Schnorr's protocol was introduced after, and is comparable to, the identification protocol of Fiat and S…
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The Offset CodeBook Mode, an authenticated encryption mode of operation for a block cipher.
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Needham–Schroeder refers to both, a symmetric key or a public key authentication protocol.
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routing protocols that create hard-to-trace communications by using a chain of proxy servers known as mixes which take in messages from multiple senders, shuffle them, and send them b…
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a Feistel cipher where in each round the nonlinear function used is assumed to be chosen uniformly at random from the set of all such functions. These ciphers are mainly of th…
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the problem of determining which numbers from a given collection of numbers have been added together to yield a specific sum: used in cryptography to encipher (and sometimes decipher) mess…
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A means of recovering cryptographic keys when the usual means for obtaining them is unavailable.; the ability to uncover the secret key to a cryptographic message.
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a block cipher by David Wheeler and Roger Needham of the Cambridge Computer Laboratory; notable for its simplicity of description and implementation.
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A family of lightweight symmetric block-ciphers designed for good performance in hardware with block sizes ranging from 32 to 128 bits and key sizes ranging from 64 to 256 bits.
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a two-pass AEAD block cipher mode of operation described in RFC 5297. It can be used either for key-wrap (nonce-less deterministic authenticated encryption) or…
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The three-pass protocol uses commutative encryption to let two people communicate privately without having to exchange keys in advance.
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The framework of universal composability (UC) is a general-purpose model for the analysis of cryptographic protocols.
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a Crypto SDK was developed by Microsoft to support experimentation with the foundational features of the U-Prove technology. It is made available under the Apache 2.0 open-source license, w…
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a key derivation function ([tag:kdf]) that uses a key in the computation.
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the process of generating keys for cryptographic purposes.
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A method for anonymous communications over a wide area network such as the Internet.
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to "scramble" or mix the internal state of a hash (or cipher) function. The input to the function is the current internal state and the output of the function bec…
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Plausible deniability may refer $1)$ to deniable encryption schemes allowing to decrypt a ciphertext for a message $m$ to some distinct message $m'$ or $2)$ to a feature provided by deniable file syst…
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an encryption paradigm which gives a master secret key owner fine-grained control over access to encrypted data.
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A PIR (Private Information Retrieval) protocol allows a user to retrieve an item from a server in possession of a database without revealing which item is retrieved.
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Elliptic Curve Integrated Encryption Scheme (ECIES) is a public key encryption system proposed by Victor Shoup in 2001.
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a block cipher designed by NTT. It is known to be insecure.