Cryptosystem of Misleading Function Based on QKD

摘要

Against such attacks as rubber-hose attack, key authentic degree of cryptosystem is analyzed and the ways to reduce the key authentic degree of cryptosystem are given theoretically. It is pointed out that one-time pad can realize low key authentic degree and it discloses the length of plaintext. Based on this, a cryptosystem of low key authentic degree is designed based on QKD that improves one-time pad. The spurious key is easy to be found and can get arbitrary misleading plaintext to mislead opposite side.