Triple DES Definition

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More correctly known as Triple Data EncryptionAlgorithm (TDEA). A block cipher encryption method that uses the DES encryption algorithm to encrypt message blocks three times, using three different 56-bit keys. Triple DES is highly secure, but slow, and largely has been superseded by Advanced Encryption Standard (AES). See also AES, algorithm, block, DES, encryption, and key.

Webster's New World Telecom
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Triple DES