Optical communication anonymous security transmission based on blockchain

Information leakage is becoming an increasingly serious problem. When malicious users impersonate a target demodulator, the existing optical communication systems are prone to exposing the data to unauthorized users. Therefore, in the context of optical communication systems, combined with blockchain technology, SM2 and SM3 algorithms are used to encrypt data before transmission. Smart contracts on the chain effectively ensure that data is not forged, while digital signature algorithms enable user identity concealment. The results show that the encrypted data is successfully converted into a binary sequence for transmission, and the original data can be correctly recovered in the blockchain after modulation and demodulation, which improves the reliability and confidentiality of the data transmission process.