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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 …
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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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short-lived, like (for example) an ephemeral key, which is a key that only exists within the lifetime of a communication session.
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an extension of DES that attempts to foil brute force attacks
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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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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.
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.
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 useful primitive that allows a client to hide its data access patterns from an untrusted server in storage outsourcing applications.
RFC 1319 — The MD2 Message-Digest Algorithm is a cryptographic hash function which is no longer considered secure.
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…
a symmetric-key block cipher designed by Ron Rivest in 1987.
a 128-bit block cipher, formerly an AES candidate, that makes heavy use of data-dependent rotations.
a variant of RSA, meant to increase the RSA public modulus size while keeping computation cost moderate.
SHA-3 Competition (2007-2012) was a competition initiated by NIST as a call for a new cryptographic hash algorithm for standardization purposes.
a VPN tunneling protocol that allows the tunneling of PPP or L2TP traffic over an SSL connection.
A family of tweakable symmetric block-cipher algorithms with 256, 512 and 1024 bit block and key sizes.
the process of breaking a stream of text up into words, phrases, symbols, or other meaningful elements called tokens.