1.2、对称加密算法(symmetric key algorithms)在对称加密算法中,加密使用的密钥和解密使用的密钥是相同的。也就是说,加密和解密都是使用的同一个密钥。
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Symmetric algorithms are very efficient and work with a single key for both encryption and decryption calculations.
对称算法非常有效,并且可以与用于加密和解密计算的单一密钥一起使用。
Symmetric algorithms have faster performance than asymmetric algorithms, but passing the secret key securely between participants poses a distribution problem.
对称算法的性能比非对称算法的性能快,但是在参与者之间安全地传递秘钥会引起分发问题。
A while ago an AD hoc group of computer scientists and cryptographers contributed to a paper that recommended a key of at least90bits for symmetric algorithms used in commercial security.
不久前,计算机科学家和密码学家专门小组发表了一篇论文,建议用于商业安全的对称算法至少要用90位的钥匙。
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