동기식 스트림 암호와 방식을 이용한 무선 암호 통신에서의 난수열 동기

Random Sequence Synchronization for Radio Secure Communication Using Synchronous Stream Cipher

The synchronous stream cipher has the advantage that one bit error in the ciphertext only affects the corresponding bit in the plaintext, but it requires the perfect synchronization between encryptor and decryptor. For synchronization, a periodic resynchronization has been used in many applications. In this paper, we propose the periodic resynchronization scheme for radio secure communication and evaluate the performances according to the period of sync pattern and session key under radio channel environment having 10-2~ 10-6 BER.