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  2. Cryptography - Wikipedia

    en.wikipedia.org/wiki/Cryptography

    In colloquial use, the term "code" is often used to mean any method of encryption or concealment of meaning. However, in cryptography, code has a more specific meaning: the replacement of a unit of plaintext (i.e., a meaningful word or phrase) with a code word (for example, "wallaby" replaces "attack at dawn"). A cypher, in contrast, is a ...

  3. Outline of cryptography - Wikipedia

    en.wikipedia.org/wiki/Outline_of_cryptography

    The following outline is provided as an overview of and topical guide to cryptography: Cryptography (or cryptology) – practice and study of hiding information. Modern cryptography intersects the disciplines of mathematics, computer science, and engineering. Applications of cryptography include ATM cards, computer passwords, and electronic ...

  4. Encryption - Wikipedia

    en.wikipedia.org/wiki/Encryption

    The question of balancing the need for national security with the right to privacy has been debated for years, since encryption has become critical in today's digital society. The modern encryption debate [42] started around the '90s when US government tried to ban cryptography because, according to them, it would threaten national security ...

  5. Cybersecurity engineering - Wikipedia

    en.wikipedia.org/wiki/Cybersecurity_engineering

    Many professionals pursue a bachelor's degree in cybersecurity or computer engineering which covers essential topics such as network security, cryptography, and risk management. [ 3 ] For those seeking advanced knowledge, a master's degree in cybersecurity engineering can provide deeper insights into specialized areas like ethical hacking ...

  6. Cryptographic Message Syntax - Wikipedia

    en.wikipedia.org/wiki/Cryptographic_Message_Syntax

    The Cryptographic Message Syntax (CMS) is the IETF's standard for cryptographically protected messages. It can be used by cryptographic schemes and protocols to digitally sign, digest, authenticate or encrypt any form of digital data.

  7. Cryptographic primitive - Wikipedia

    en.wikipedia.org/wiki/Cryptographic_primitive

    Symmetric key cryptography—compute a ciphertext decodable with the same key used to encode (e.g., AES) Public-key cryptography—compute a ciphertext decodable with a different key used to encode (e.g., RSA) Digital signatures—confirm the author of a message; Mix network—pool communications from many users to anonymize what came from whom

  8. Cryptosystem - Wikipedia

    en.wikipedia.org/wiki/Cryptosystem

    In cryptography, a cryptosystem is a suite of cryptographic algorithms needed to implement a particular security service, such as confidentiality . [ 1 ] Typically, a cryptosystem consists of three algorithms: one for key generation , one for encryption, and one for decryption.

  9. Cryptographic protocol - Wikipedia

    en.wikipedia.org/wiki/Cryptographic_protocol

    For example, Transport Layer Security (TLS) is a cryptographic protocol that is used to secure web connections. [2] It has an entity authentication mechanism, based on the X.509 system; a key setup phase, where a symmetric encryption key is formed by employing public-key cryptography; and an application-level data transport function. These ...