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A family of tweakable symmetric block-cipher algorithms with 256, 512 and 1024 bit block and key sizes.
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a technology that allows telephone calls to be made over computer networks like the Internet.
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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://…
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a useful primitive that allows a client to hide its data access patterns from an untrusted server in storage outsourcing applications.
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a 128-bit block cipher, formerly an AES candidate, that makes heavy use of data-dependent rotations.
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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.
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The Miyaguchi-Preneel scheme, based on a one-way compression function, was proposed around 1989 by Preneel, and independently by Miyaguchi.Ohta, and Iwata.
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a property that, if proven to be possesed, makes an algorithm "immune" to time-memory tradeoffs, by "punishing" memory reductions. Usually algorithms possesing this property can't e…
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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 $A\in\mathcal{A}$ …
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An attack on TLS and related protocols as of may 2015. This attack uses pre-computations to attack short prime diffie hellmann key exchange, primes with up to 1024 bits length are considered broken. I…
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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…
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a cryptographic hash function. It was designed for the SHA-3 competition where it became a finalist, but wasn't chosen as SHA-3.
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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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Property of cryptographic primitives to propagate errors. This usually means that an "error" in one block propagates into the following blocks, thereby flipping bits there or completely scrambling tho…
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an extension of DES that attempts to foil brute force attacks
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Cramer-Shoup asymmetric encryption (an extension of ElGamal)
one of two common methods when using a public key infrastructure for maintaining access to servers in a network.
stream cipher proposed by Daniel J. Bernstein, as an evolution of Salsa20 with (conjecturally) improved resistance to cryptanalysis.
Design philosophy for ciphers. ARX solely relies on additions, rotations and XORs to build ciphers and similar algorithms. This usually constructs ciphers that are highly resistant against side-channe…
a type of side channel attack which exploits sounds emitted by computers or machines.
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 …
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…
RFC 1319 — The MD2 Message-Digest Algorithm is a cryptographic hash function which is no longer considered secure.
a symmetric-key block cipher designed by Ron Rivest in 1987.