Es el
obtenido aplicando sucesivos algoritmos de cifra a partir del texto en claro.
Cada algoritmo actúa sobre el texto cifrado obtenido por el algoritmo inmediato
anterior. [Ribagorda:1997]
Process of
encrypting encrypted information. Occurs when a message, encrypted off-line, is
transmitted over a secured, on-line circuit, or when information encrypted by
the originator is multiplexed onto a communications trunk, which is then bulk
encrypted. [CNSSI_4009:2010]
(I) An encryption
operation for which the plaintext input to be transformed is the ciphertext
output of a previous encryption operation. (Compare: hybrid encryption.) [RFC4949:2007]
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