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Everything about Running key cipher
Type of polyalphabetic substitution cipher
In classical cryptography, the running key cipher is a type of polyalphabetic substitution cipher in which a text, typically from a book, is used to provide a very long keystream. Wikipedia →
🧭 Start here: a 6-step reading path
- Read the overview: Running key cipherA 5-minute orientation
- Pick up a classic book: HackingThe most-reprinted book on the subject
- Read the landmark paper: Running key mapping in a quantum stream cipher by the Yuen 2000 protocolCited 21 times
- Go sideways: CryptanalysisA closely related topic
- Go sideways: Substitution cipherA closely related topic
📖 Definitions
No dictionary entry for this exact phrase.
🗂️ The subject at a glance
🏆 Landmark papers (most cited)
📚 Books worth reading
HackingJon Erickson, Jon Erickson · 2003
The mathematics of encryptionMargaret B. Cozzens · 2013
AQA Computer ScienceSteve Cushing · 2016
Ranked by number of editions on Open Library, a rough measure of how lasting a book is.
🔗 Related topics
- Cryptanalysis Cryptanalysis (from Greek kryptós 'hidden' and analýein 'to analyze') refers to the process of analyzing information systems in order to understand hidden…
- Substitution cipher In cryptography, a substitution cipher is a method of encrypting that creates the ciphertext (its output) by replacing units of the plaintext (its input)…
- Alberti cipher The Alberti cipher, created in 1467 by Italian architect Leon Battista Alberti, was one of the first polyalphabetic ciphers. In the opening pages of his…
- Vigenère cipher The Vigenère cipher (French pronunciation: [viʒnɛːʁ]) is a method of encrypting alphabetic text where each letter of the plaintext is encoded with a different…
- Two-square cipher The Two-square cipher, also called double Playfair, is a manual symmetric encryption technique. It was developed to ease the cumbersome nature of the large…
- 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…
- Frequency analysis In cryptanalysis, frequency analysis (also known as counting letters) is the study of the frequency of letters or groups of letters in a ciphertext. The…
- Autokey cipher An autokey cipher (also known as the autoclave cipher) is a cipher that incorporates the message (the plaintext) into the key. The key is generated from…