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  2. One-time pad - Wikipedia

    en.wikipedia.org/wiki/One-time_pad

    In cryptography, the one-time pad (OTP) is an encryption technique that cannot be cracked, but requires the use of a single-use pre-shared key that is larger than or equal to the size of the message being sent. In this technique, a plaintext is paired with a random secret key (also referred to as a one-time pad).

  3. Confusion and diffusion - Wikipedia

    en.wikipedia.org/wiki/Confusion_and_diffusion

    Although ciphers can be confusion-only (substitution cipher, one-time pad) or diffusion-only (transposition cipher), any "reasonable" block cipher uses both confusion and diffusion. [2] These concepts are also important in the design of cryptographic hash functions , and pseudorandom number generators , where decorrelation of the generated ...

  4. Message authentication code - Wikipedia

    en.wikipedia.org/wiki/Message_authentication_code

    This can be seen as the one-time pad for authentication. [10] The simplest such pairwise independent hash function is defined by the random key, key = (a, b), and the MAC tag for a message m is computed as tag = (am + b) mod p, where p is prime.

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  6. OTP - Wikipedia

    en.wikipedia.org/wiki/OTP

    One-time pad, in cryptography; One-time password or one-time PIN, a password or PIN that is valid for only one login session or transaction; One-time programmable memory, a type of programmable read-only memory (ROM) in electronics; Open Telecom Platform, a collection of middleware, libraries, and tools written in Erlang programming language

  7. List of telecommunications encryption terms - Wikipedia

    en.wikipedia.org/wiki/List_of_telecommunications...

    George W. Bush using a Motorola STU-III immediately after the September 11 attacks KSD-64 "Crypto-ignition keys" on display at the National Cryptologic Museum in 2005. This is a list of telecommunications encryption terms.

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  9. Poly1305 - Wikipedia

    en.wikipedia.org/wiki/Poly1305

    Poly1305 is a universal hash family designed by Daniel J. Bernstein in 2002 for use in cryptography. [1] [2]As with any universal hash family, Poly1305 can be used as a one-time message authentication code to authenticate a single message using a secret key shared between sender and recipient, [3] similar to the way that a one-time pad can be used to conceal the content of a single message ...