The key agreement scheme is an important part of the cryptography theory. The first study in this field belongs to Diffie–Hellman and Merkle. We present a new key agreement scheme using a group action of special orthogonal group of 2 × 2 matrices with real entries on the complex projective line.

中文翻译：

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基于小组行动的关键协议协议

密钥协商方案是密码学理论的重要组成部分。该领域的第一项研究属于Diffie-Hellman和Merkle。我们提出了一个新的密钥协商方案，该方案使用2×2矩阵的特殊正交组的组动作，并在复投影线上有实数项。