triple DES

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triple DES

(cryptography)
A product cipher which, like DES, operates on 64-bit data blocks. There are several forms, each of which uses the DES cipher 3 times. Some forms use two 56-bit keys, some use three. The DES "modes of operation" may also be used with triple-DES.
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DES

(1) (Digital Entertainment System) See digital media server.

(2) (Data Encryption Standard) A NIST-standard cryptographic cipher that uses a 56-bit key. Adopted by the NIST in 1977, it was replaced by AES in 2001 as the official standard. DES is a symmetric block cipher that processes 64-bit blocks in four different modes of operation, with the electronic code book (ECB) being the most popular.

Triple DES
By adding various multiple-pass methods, Triple DES increased security; for example, encrypting with one key, decrypting the results with a second key and encrypting it again with a third. However, the extra passes added considerable computing time to the process. DES is still used in applications that do not require the strongest security. See cipher, cryptography, NIST, AES and Fortezza.
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References in periodicals archive ?
The Fortis/Diebold partnership also includes other projects such as a noncash platform roll out and upgrades to Europay/Mastercard/Visa (EMV) and Triple Data Encryption Standard (3DES) in both countries.
Other cryptographic algorithms currently validated by the CMVP are the Data Encryption Standard (DES), the Triple Data Encryption Standard (TDES), the Digital Signature Algorithm (DSA), the Secure Hash Algorithm (SHA-1), and the Random Number Generator algorithm (RNG).
It features a triple data encryption standard with automated random key generation transfer.
* TripleDES (Triple Data Encryption Standard algorithm)
The AES standard will replace the Triple Data Encryption Standard (3DES) standard currently used for high-security applications.