基于魔方算法的自动信任协商敏感信息传输方案

为解决自动信任协商(ATN)过程中在不安全物理信道上传输证书及其他资源的问题，提出一个基于魔方算法的敏感信息传输方案。协商发起方根据魔方算法把自己的请求或资源变换成一个变换序列，并在其后添加数字摘要产生信息变换序列。然后按表示协商成功条件的证书逻辑表达式把信息变换序列乱序成信息传输序列，再发送给协商接收方；协商接收方用自己的证书进行反向变换后得到请求或资源。该方案具有单轮证书交换、较小的网络开销等特性。实验结果表明，该方案具有较好的可行性，较高的安全性、效率与信息传输量。

Sensitive information transmission scheme based on magic cube algorithm in automated trust negotiation

To solve the problem of transmitting credentials and other resources through unsafe physical channels during an Automated Trust Negotiation (ATN), a transmission scheme for credentials and resources was proposed based on magic cube algorithm. Through the magic cube algorithm, a transformation sequence was formed in terms of the request or the resource of negotiation initiator, followed by the digital digest to generate the information transformation sequence. According to the logical expression composed of credentials which represent the condition negotiation success, the information transformation sequence was shuffled to form an information transmission sequence, which was sent to the negotiation receiver. The information transmission sequence was reciprocally transformed by the negotiation receiver according to his own credentials. This scheme has many features of the one-round credential exchange, and little network cost. The example shows that the scheme is feasible, and the experimental results show that the scheme has good security and efficiency and low information transmission capacity.