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Basics of Credit Card
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Data Encryption Standard In data encryption systems, information is mathematically scrambled or encoded to make the information indecipherable for the purpose of secure transmission. On the receiving end the data is unencrypted or re-assembled in a coherent form for use. In 1977 the United States adopted a federal standard for such transmission and reception known as the Data Encryption Standard. That method performed both encryption and decryption with a 56-bit key applied per 64 bits of data. It remained in place for 24 years. In 2001 the government adopted the Advanced Encryption Standard (AES) to improve on the level of encryption security in light of the considerable technological advances of the last quarter of a century. The new AES applies keys of 128-bits, 192-bits, and 256-bits in length. The continued evolution of data encryption standards will make the acceptance of credit card transactions in both the physical world and the online environment more secure against potential tampering and "hacker" attacks. More Credit-Card Terms Explained |
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