Algoritmo de
cifra que realiza 3 cifrados DES consecutivos. Cifra el texto en bloques de 64
bits. Utiliza claves de 112 o 160 bits (correspondientes a 2 o 3 claves de 56 bits).
Procedimiento
que aumenta la fortaleza del DES consistente en efectuar, en su modo estándar
(E-D-E DES), sucesivamente un cifrado, un descifrado y otro cifrado DES usando
dos claves, una para los procesos de cifrado y la otra para el de descifrado. [CESID:1997]
An implementation of the
Data Encryption Standard (DES) algorithm that uses three passes of the DES
algorithm instead of one as used in ordinary DES applications. Triple DES
provides much stronger encryption than ordinary DES but it is less secure than
AES. [CNSSI_4009:2010]
(I) A block cipher that
transforms each 64-bit plaintext block by applying the DEA three successive
times, using either two or three different keys for an effective key length of
112 or 168 bits. [A9052, SP67] [RFC4949:2007]
Triple DES is implemented by
running the symmetric DES algorithm three times with two or three different
keys. The first and the third execution is done in encrypt mode and the second
execution is in decrypt mode.