问题
单项选择题
为保障数据的存储和传输安全，需要对一些重要数据进行加密。由于对称密码算法 （） ，所以特别适合对大量的数据进行加密。国际数据加密算法 IDEA 的密钥长度是 （） 位。
国际数据加密算法IDEA的密钥长度是（）位
A．56
B．64
C．128
D．256
答案
参考答案：C
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为保障数据的存储和传输安全，需要对一些重要数据进行加密。由于对称密码算法 （） ，所以特别适合对大量的数据进行加密。国际数据加密算法 IDEA 的密钥长度是 （） 位。
国际数据加密算法IDEA的密钥长度是（）位
A．56
B．64
C．128
D．256
参考答案：C
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