两个公司希望通过Internet传输大量敏感数据，从信息源到目的地之间的传输数据以密文形式出现，而且不希望由于在传输结点使用特殊的安全单元而增加开支，最合适的加密方式是（ ），使用会话密钥算法效率最高的是（ ）。
问题1选项
A.链路加密
B.结点加密
C.端-端加密
D.混合加密
问题2选项
A.RSA
B.RC-5
C.MD5
D.ECC
正确答案及解析
正确答案
解析
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