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使用的PIC16XXX高级加密标准
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时间:2020-03-09
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One of the most widely used block cipher algorithms is the Data Encryption Standard (DES), adopted in 1977 by the American National Standards Institute (ANSI). After more than twenty years of use with continuous aging due to advances in cryptography, the National Institute of Standards and Technology (NIST) on Sep- tember 12, 1997, started a process to stimulate the development and submission of alternatives to the DES. Twenty-one algorithms were analyzed in the first round and five algorithms were analyzed in the second round. On October 2, 2000 the NIST announced that the new encryption technique, named Advanced Encryption Standard (AES), would use the Rijndael algorithm, designed by two well-known specialists, Joan Daemen and Vincent Rijmen from Belgium. The new AES will be used to protect sensitive information of federal computer systems, as well as many private businesses. AN821 Advanced Encryption Standard Using the PIC16XXX FUNDAMENTAL ENCRYPTION Author: Caio Gubel OVERVIEW Microchip Technology Inc. Throughout history, mankind has faced the problem of storing and transmitting sensitive information in a way that could guarantee both reliable and easy access to INTRODUCTION authorized persons and prevent undue and illegal ……
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