Data Encryption Standard (DES)
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Answer:
A cryptographic algorithm for the protection of unclassified computer data and published by the National Institute of Standard and Technology in Federal Information Processing Standard Publication 46-1. In the Bank card industry the primary method for encrypting and decrypting a Personal Identification number and the securing that these PIN numbers never appear in the clear when transporting from a terminal. All message and encrypted and decrypted using this format. In the bank card industry, the approved algorithm used by electronic hardware devices for the cryptographic protection of computer data.
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