Data encryption algorithm (Data Encryption Algorithm, DEA) data encryption standard (Data Encryption Standard, DES) is a standard description of it from IBM' s research work, and in 1977 formally adopted by the U.S. government. It is a symmetric encryption algorithm, is probably the most widely used key systems, particularly in protecting the security of financial data, the initial development of the DES is embedded in hardware. Typically, ATM (Automated Teller Machine, ATM) use DES.

des.txt

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