CAJ | 학술논문

提出一种基于混沌细胞自动机的分组密码算法,采用固定边界条件下反向加密正向解密的Feistel迭代方式,计算机模拟的实验结果证明:该算法在固定密钥的密文差错扩散率和固定明文的密文差错扩散率接近50%,可有效对抗差分攻击、穷举明文和穷举密钥攻击.
제출일충기우혼돈세포자동궤적분조밀마산법,채용고정변계조건하반향가밀정향해밀적Feistel질대방식,계산궤모의적실험결과증명:해산법재고정밀약적밀문차착확산솔화고정명문적밀문차착확산솔접근50%,가유효대항차분공격、궁거명문화궁거밀약공격.
This paper presents a block cipher algorithm based on the chain-rules CA,which is by means of iterating cellular automata backward-to-encryption and forward-to-decryption at a fixed boundary. The results show the error propagation of ciphertext with an unchanged key and ciphertext with an unchanged plaintext is close to 50%. This cryptosystem can resist known-plaintext attack and known- ciphertext attack.