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.
a toy variant of the DES cipher introduced by Edward F. Schaefer in 1996 for educational purposes. It has an 8-bit block size and a 10-bit key, and uses two rounds, with two 4x2 bit …
JWE specifies how to encrypt content and encode associated metadata. It is defined in RFC 7516: JSON Web Encryption (JWE).
at the heart of cryptography and error-correction. In cryptography they are the main tool for generating long pseudorandom binary sequences which can be used as keys for two commun…
JSON Web Signatures specify how to encode binary data along with signatures and metadata in RFC 7515.
the art and science of teaching, that is transmitting knowledge. On this website, only the pedagogy of teaching cryptography could possibly be on-topic.
an SQL-Aware encrypted database system from MIT
SHA-3 Competition (2007-2012) was a competition initiated by NIST as a call for a new cryptographic hash algorithm for standardization purposes.
Traitor tracing describes an ability of specific cryptographic schemes that helps trace the source of leaks.
The Miyaguchi-Preneel scheme, based on a one-way compression function, was proposed around 1989 by Preneel, and independently by Miyaguchi.Ohta, and Iwata.
For questions about design decisions of schemes and implementations of cryptographic primitives to make them resistant to misuse.
a family of message authentication codes defined in RFC 4418. UMAC supports 32-, 64-, 96-, and 128-bit tags. UMAC uses a PRF, typically instantiated with AES-128, to expand a short key into …
a 64-bit block cipher developed by the U.S. National Security Agency (NSA).
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 …
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 term coined by Bruce Schneier to describe products that make fantastic claims about security through cryptography.
Material related to cryptography and primality tests using Lucas groups.
a set of public key cryptography standards provided by the IEEE.
a relatively new asymmetric key agreement protocol (also designated the Colored Burau Key Agreement Protocol), based on a simultaneous conjugacy search problem in a braid group.
Blockcipher based on the compression function of SHA-256. This cipher interprets the internal compression function of SHA-256 as blockcipher. The key is provided as "input data" and the input is fed i…
a signature made by multiple parties.
In a Probabilistic Signature Scheme, the signature depends on a random input, in addition to the private key and message.
should be used for questions that specifically ask about the contents of RFC 7748, Elliptic Curves for Security (January 2016).
a new standard for advanced digital signature by European Directive on a community framework for Electronic Signatures.