DES是（ ）算法。
- A.公开密钥加密
- B.共享密钥加密
- C.数字签名
- D.认证
正确答案及解析
正确答案
解析
对于非对称加密又称为公开密钥加密，而共享密钥加密指对称加密。常见的对称加密算法有：DES，三重DES、RC-5、IDEA、AES，因此本题选择B选项。
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