E2 (cipher) - определение. Что такое E2 (cipher)
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Что (кто) такое E2 (cipher) - определение

BLOCK CIPHER

E2 (cipher)         
In cryptography, E2 is a symmetric block cipher which was created in 1998 by NTT and submitted to the AES competition.
XOR cipher         
ENCRYPTION BY SIMPLE EXCLUSIVE-OR LOGIC OPERATIONS
Simple XOR Cipher; Simple XOR cipher; XOR encryption; Xor encryption; Xor cipher
In cryptography, the simple XOR cipher is a type of additive cipher, an encryption algorithm that operates according to the principles:
Caesar cipher         
  • The Caesar cipher is named for [[Julius Caesar]], who used an alphabet where decrypting would shift three letters to the left.
  • A construction of two rotating disks with a Caesar cipher can be used to encrypt or decrypt the code.
  • The distribution of letters in a typical sample of English language text has a distinctive and predictable shape. A Caesar shift "rotates" this distribution, and it is possible to determine the shift by examining the resultant frequency graph.
SIMPLE AND WIDELY KNOWN ENCRYPTION TECHNIQUE
Shift cipher; Caesar shift cipher; Caesar cypher; Caeser cipher; ROT3; Caesar shift; Caesarean cipher; Caesar Cipher; Rotation cipher; Caesar-shift substitution cipher; Caesar encryption; Caesar’s cipher; Caesar Code; Caesar code; Caesar's cipher; Caesar's code; Caesar's Cipher; Caesar Shift; Caesarian cipher; Ceaserian cipher; Ceasarian cipher; Ceserian cipher; Cesarian cipher; Caesar's method; Caesar method; Shift cypher; Ceasar cypher; Ceasar Cipher
In cryptography, a Caesar cipher, also known as Caesar's cipher, the shift cipher, Caesar's code or Caesar shift, is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet.

Википедия

E2 (cipher)

In cryptography, E2 is a symmetric block cipher which was created in 1998 by NTT and submitted to the AES competition.

Like other AES candidates, E2 operates on blocks of 128 bits, using a key of 128, 192, or 256 bits. It uses a 12-round Feistel network. E2 has an input transformation and output transformation that both use modular multiplication, but the round function itself consists only of XORs and S-box lookups. The single 8×8-bit S-box is constructed from the composition of an affine transformation with the discrete exponentiation x127 over the finite field GF(28). NTT adopted many of E2's special characteristics in Camellia, which has essentially replaced E2.