Some frames in video stream are encrypted by 3DES private-key algorithm. And keys of 3DES are encrypted by RSA public-key algorithm.
用私钥算法中的3DES对视频流的有关帧进行加密；而用公钥算法中的RSA对3DES密钥进行加密。
参考来源 - 会议电视中MPEG·2,447,543篇论文数据，部分数据来源于NoteExpress
This payment protocol is specially suitable for mobile devices of weaker computation capability which cannot execute public-key algorithm easily.
该协议特别适用于计算能力较弱、不宜执行公钥密码算法的手持移动设备中。
Based on trapdoor one-way function, this paper presents a RSA -based probabilistic public-key algorithm with security and efficiency and the correctness of algorithm was proved.
根据单向陷门函数的陷门性质，文章设计了一种安全有效的基于RSA的概率公钥密码算法，并对其正确性进行了证明。
Anyone receiving the message can use the same hash algorithm on that message, then decrypt the supplied encrypted digest using your public key and compare the two values.
任何接收此消息的人都可以对该消息使用相同的散列算法，然后使用您的公开密匙解密附带的已加密摘要，并比较两者的值。
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