国际数据加密算法
国际数据加密算法（英语：International Data Encryption Algorithm，缩写为 IDEA），最早称为改良建议加密标准（Improved Proposed Encryption Standard，IPES），是密码学上一种对称密钥分组密码，由James Massey与来学嘉设计，在1991年首次提出。这个算法提出的目标，在于取代旧有的数据加密标准（DES）。
PGP加密进程运用国际数据加密算法作为加密及验证之用。
International Data Encryption Algorithm
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International Data Encryption Algorithm 国际资料加密演算法
In cryptography, the International Data Encryption Algorithm (IDEA), originally called Improved Proposed Encryption Standard (IPES), is a symmetric-key block cipher designed by James Massey of ETH Zurich and Xuejia Lai and was first described in 1991. The algorithm was intended as a replacement for the Data Encryption Standard (DES). IDEA is a minor revision of an earlier cipher, Proposed Encryption Standard (PES).
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