An implementation of data exchange using authenticated attribute-based encryption for environmental monitoring

A reliable and efficient security system on the Internet of things era is one of the most required aspects. An information security in the environment monitoring system is very important, the information sent from the wireless sensor network to the Data Center must be completely secure and only users with the access right can read the contents of the information. To secure the contents of the data, then ciphertext policy attribute-based encryption (CP-ABE) is one of solution for the data security. The data sent from the Data Center will be encrypted using attributes attached to the previously registered user. The data can be decrypted if and only if the attributes of the users are appropriate to the existing policy rules on the ciphertext. The importance of maintaining the authenticity of data on a system, it is necessary to add a security system to protect from users who perform illegal acts. In this paper, we discuss the security mechanism with revocation user, we use the attributes in the CP-ABE who can be updated if the user is doing the illegal actions of the system. By adding an authentication feature using a timestamp digital signature Rivest, Shamir Adleman (RSA) 2048 in a message, it will be a guaranteed the data integrity of information data and no repetition of data transmitted by any particular party.