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  2. Cryptography - Wikipedia

    en.wikipedia.org/wiki/Cryptography

    Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized: kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία-logia, "study", respectively [1]), is the practice and study of techniques for secure communication in the presence of adversarial behavior. [2]

  3. Encryption - Wikipedia

    en.wikipedia.org/wiki/Encryption

    In the context of cryptography, encryption serves as a mechanism to ensure confidentiality. [1] Since data may be visible on the Internet, sensitive information such as passwords and personal communication may be exposed to potential interceptors. [1] The process of encrypting and decrypting messages involves keys. The two main types of keys in ...

  4. Keystream - Wikipedia

    en.wikipedia.org/wiki/Keystream

    In cryptography, a keystream is a stream of random or pseudorandom characters that are combined with a plaintext message to produce an encrypted message (the ciphertext).. The "characters" in the keystream can be bits, bytes, numbers or actual characters like A-Z depending on the usage case.

  5. Information theory - Wikipedia

    en.wikipedia.org/wiki/Information_theory

    A third class of information theory codes are cryptographic algorithms (both codes and ciphers). Concepts, methods and results from coding theory and information theory are widely used in cryptography and cryptanalysis, such as the unit ban. [citation needed]

  6. 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 ...

  7. Cipher - Wikipedia

    en.wikipedia.org/wiki/Cipher

    Edward Larsson's rune cipher resembling that found on the Kensington Runestone.Also includes runically unrelated blackletter writing style and pigpen cipher.. In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a procedure.

  8. Today's Wordle Hint, Answer for #1264 on Wednesday, December ...

    www.aol.com/todays-wordle-hint-answer-1264...

    Today's Wordle Answer for #1264 on Wednesday, December 4, 2024. Today's Wordle answer on Wednesday, December 4, 2024, is CRYPT. How'd you do? Next: Catch up on other Wordle answers from this week.

  9. Public-key cryptography - Wikipedia

    en.wikipedia.org/wiki/Public-key_cryptography

    Public-key cryptography, or asymmetric cryptography, is the field of cryptographic systems that use pairs of related keys. Each key pair consists of a public key and a corresponding private key . [ 1 ] [ 2 ] Key pairs are generated with cryptographic algorithms based on mathematical problems termed one-way functions .