Innovative Information Science & Technology Research Group (ISYOU)
Mixnet (mix network) was proposed by the researcher for anonymous communication. A mixnet is a multistage system that accepts encrypted messages under the public keys of all intermediate mixnet nodes and outputs randomly permuted corresponding plaintexts. Each mixnet node changes the appearance of its inputs by decrypting them (removing the layer of encryption) and permutes them before forwarding to the next node. In this way adversary will find hard to guess which input ciphertext corresponds to output ciphertext.