The following outline is provided as an overview of and topical guide to cryptography: Cryptography (or cryptology) – practice and study of hiding information...

the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing...

A key in cryptography is a piece of information, usually a string of numbers or letters that are stored in a file, which, when processed through a cryptographic...

Cryptography, the use of codes and ciphers, began thousands of years ago. Until recent decades, it has been the story of what might be called classical...

In cryptography, a salt is random data fed as an additional input to a one-way function that hashes data, a password or passphrase. Salting helps defend...

Cryptographic primitives are well-established, low-level cryptographic algorithms that are frequently used to build cryptographic protocols for computer...

Visual cryptography is a cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decrypted...

In RSA-based cryptography, a user's private key—which can be used to sign messages, or decrypt messages sent to that user—is a pair of large prime numbers...

In cryptography, a message authentication code (MAC), sometimes known as an authentication tag, is a short piece of information used for authenticating...

components of the daily key, which enabled the Cipher Bureau to read German Enigma messages starting from January 1933. Over time, the German cryptographic procedures...

future. As of 2022[update], the U.S. federal government has proposed a roadmap for organizations to start migrating toward quantum-cryptography-resistant...

communications earned her awards and citations, such as appointment as a Member of the Order of the British Empire (MBE), in 1946. Joan Elisabeth Lowther Clarke was...

In cryptography, encryption (more specifically, encoding) is the process of transforming information in a way that, ideally, only authorized parties can...

Elliptic-curve cryptography (ECC) is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields. ECC...

can be represented by a smaller set of symbols, which is useful for telegraphy, steganography, and cryptography. The device was originally used for fire...

sender known to the recipient. Digital signatures are a type of public-key cryptography, and are commonly used for software distribution, financial transactions...

The Cryptographic Message Syntax (CMS) is the IETF's standard for cryptographically protected messages. It can be used by cryptographic schemes and protocols...

In cryptography, key size or key length refers to the number of bits in a key used by a cryptographic algorithm (such as a cipher). Key length defines...

computers Outline of computing and Outline of information technology Outline of computer science Outline of artificial intelligence Outline of cryptography Outline...

Geheimfernschreiber Photographs of Sturgeon Entry for "Sturgeon" in the Government Code and Cypher School Cryptographic Dictionary Bletchley Park's Sturgeon...

In cryptography, GMR is a digital signature algorithm named after its inventors Shafi Goldwasser, Silvio Micali and Ron Rivest. As with RSA the security...

algorithms are algorithms for cryptography that use the same cryptographic keys for both the encryption of plaintext and the decryption of ciphertext. The keys...

A cryptographic protocol is an abstract or concrete protocol that performs a security-related function and applies cryptographic methods, often as sequences...

in standards processes or otherwise publishes information about its cryptographic algorithms. The NSA has categorized encryption items into four product...

of the Caesar cipher which was developed in ancient Rome, used by Julius Caesar in the 1st century BC. An early entry on the Timeline of cryptography...

The MD2 Message-Digest Algorithm is a cryptographic hash function developed by Ronald Rivest in 1989. The algorithm is optimized for 8-bit computers....

In cryptography, ciphertext or cyphertext is the result of encryption performed on plaintext using an algorithm, called a cipher. Ciphertext is also known...

In classical cryptography, the bifid cipher is a cipher which combines the Polybius square with transposition, and uses fractionation to achieve diffusion...

Lattice-based cryptography is the generic term for constructions of cryptographic primitives that involve lattices, either in the construction itself...

In cryptography, a substitution cipher is a method of encrypting in which units of plaintext are replaced with the ciphertext, in a defined manner, with...