Acrónimos: TDEA,
TDES, 3DES
Ver:
· DES - Data Encryption Standard
· [ISO-18033-3:2005]
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.
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