微型电脑应用

智能电网中安全的信息传输,有利于电力系统安全稳定的运行。提出了一种基于数据聚合加密与签名的数据传输方案,以提高智能电网用户信息传输的安全性和可靠性。该方案包括:1,对数据加密与签名方法进行了分析,采用Paillier算法对生成密钥,明文加密,密文解密,密文聚合,聚合密文的解密等操作;2,采用假名算法对用户进行用户签名密钥,用签名密钥进行签名,签名聚合及验证等操作。对所提方法进行了安全性分析,说明了所提方法在传输数据时具有隐私保护能力及信息追踪能力。仿真对比分析验证了该方法比EPPA方法具有更低的计算消耗和通信消耗,说明该方法更适用于智能电网的数据加密。

Secure information transmission in smart grid is conducive to the safe and stable operation of power system. This paper proposes a data transmission scheme based on data aggregation encryption and signature to improve the security and reliability of user information transmission in smart grid. The scheme consists of two parts: firstly, the data encryption and signature method are analyzed, using Paillier algorithm to generate key, plaintext encryption, ciphertext decryption, ciphertext aggregation, the decryption of aggregate ciphertext and other operations; secondly,pseudonym algorithm is used to conduct user signature key, and the signature key is usedfor signature, signature aggregation, verification and other operations. The security analysis of the proposed method shows that the proposed method has the ability of privacy protection and information tracking when transmitting data. Simulation comparison and analysis verify that the method proposed in this paper has lower computational consumption and communication consumption than the EPPA method, indicating that the method proposed in this paper is more suitable for data encryption of smart grid.