ElsieFour – A Low-Tech Cipher Inspired by RC 4
Автор: Cryptography for Everybody
Загружено: 2023-05-13
Просмотров: 1527
Описание:
#cryptology, #cryptography, #cryptanalysis
In this video we explain how the low-tech cipher ElsieFour (LC4) works. It is a hand cipher inspired by RC4, Playfair, and the concept of plaintext-dependent key streams. In the video, we discuss how to encrypt text, compute the size of the key space, and compute the Unicity Distance. Finally, we use CrypTool 2 to encrypt and decrypt text with the ElsieFour component.
Specification of LC4: https://eprint.iacr.org/2017/339
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