It is believed that in modern cryptography , any algorithm of encryption and decryption in cryptographical systems could be public , and the security should rely on the secure key 現(xiàn)代密碼學認為,任何加密體系的加密和解密算法都可以公開,其安全性在于密鑰的保密性。
Chapter 2 clarifies the cryptographical foundation of e - commerce system . it mainly introduces a hybrid cryptosystem using rc2 and rsa algorithm in our application and some message hash function producing message digest provided by ms ca ( microsoft certificate authority ) such as sha - 1 , md4 and md5 主要論述了系統(tǒng)采用的rc2和rsa相結合的混合密碼體制,另外對msca ( microsoftcertificateauthority )所提供的幾種產(chǎn)生消息摘要的消息散列函數(shù)如: sha - 1 、 md4 、 md5等也進行了分析。
cryptographical meaning: Adjective: cryptographical Of or relating to cryptanalysis - cryptanalytic , cryptographic , cryptologic , cryptological See also: cryptography