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ChaCha20-Poly1305. ChaCha20-Poly1305 is an authenticated encryption with associated data (AEAD) algorithm, that combines the ChaCha20 stream cipher with the Poly1305 message authentication code. [ 1] It has fast software performance, and without hardware acceleration, is usually faster than AES-GCM. [ 1]: §B.
Beaufort cipher. The Beaufort cipher, invented by some Giovanni Sestri in early 18th century but widely attributed to Sir Francis Beaufort, [1] is a substitution cipher similar to the Vigenère cipher, with a slightly modified enciphering mechanism and tableau. [2] Its most famous application was in a rotor-based cipher machine, the Hagelin M ...
List of Enigma machine simulators lists software implementations of the Enigma machine, a rotor cypher device that was invented by German engineer Arthur Scherbius at the end of World War I. and used in the early- to mid-20th century to protect commercial, diplomatic, and military communication. List of Enigma simulators
Disk encryption theory. Disk encryption is a special case of data at rest protection when the storage medium is a sector-addressable device (e.g., a hard disk). This article presents cryptographic aspects of the problem. For an overview, see disk encryption. For discussion of different software packages and hardware devices devoted to this ...
Confusion in a symmetric cipher is obscuring the local correlation between the input ( plaintext ), and output ( ciphertext) by varying the application of the key to the data, while diffusion is hiding the plaintext statistics by spreading it over a larger area of ciphertext. [ 2] Although ciphers can be confusion-only ( substitution cipher ...
Encrypting File System. The Encrypting File System ( EFS) on Microsoft Windows is a feature introduced in version 3.0 of NTFS [ 1] that provides filesystem-level encryption. The technology enables files to be transparently encrypted to protect confidential data from attackers with physical access to the computer.
Download Desktop Gold. AOL Desktop Gold is included at no additional cost with your membership. 2. Under 'All Products' scroll to 'AOL Desktop Gold'. If you have an AOL Desktop Gold trial or subscription. Using the link in the Official AOL signup confirmation email you received. 1.
Stream cipher. The operation of the keystream generator in A5/1, an LFSR-based stream cipher used to encrypt mobile phone conversations. A stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream ( keystream ). In a stream cipher, each plaintext digit is encrypted one at a time with the ...