In smart grid, the power usage data sent out by smart meters may be eavesdropped, which leads to user privacy leakage. To solve this problem, a secure communication scheme for smart meter is proposed in this paper. The scheme is based on a symmetric cryptosystem, whose main security features include device authentication, data confidentiality and integrity. Specially, user privacy is protected through secure data aggregation. Security analysis is provided to demonstrate that the scheme can meet the security requirements of sm...
