Abstract: In order to solve the problem of the confidentiality and integrity of the data on wireless sensor network (WSN), an efficient interleaved encryption and authenticated scheme on wireless sensor networks is put forward in the paper. The scheme is based on symmetric key encryption. The nodes on the networks only shared keys with those nodes in tow hops, and the cipher is always encrypted two layers. This way, the storage space of keys is decreased, and the calculated amount of encryption and decryption is reduced. Beyond that, the function with voting technology certification is introduced in the scheme, which can reduce the probability of message loss significantly under the premise of the integrity and confidentiality.

Key words:  wireless senor network, interleaved encryption, symmetric encryption, integrity, authentication