摘要
指出文献[1]设计的数据加密算法在已知明文攻击下是不安全的,基于该加密算法的密文的高位比特对密钥的低位比特的不敏感性,可以利用分割攻击方法求出其全部密钥比特。
It抯 pointed that the encryption algorithm proposed in [1] can be broken by an attack with known plaintexts, and the key of this encryption algorithm can be found by the divide-and-conquer attack based on the fact that the most significant bits of ciphers are not sensitive to the least significant bits of the key.
出处
《通信学报》
EI
CSCD
北大核心
2003年第11期73-78,共6页
Journal on Communications
基金
河南省杰出青年科学基金资助项目(0312001800)
关键词
算术编码
加密算法
已知明文攻击
分割攻击
arithmetic coding
encryption algorithm
attack with known plaintext
divide-and-conquer attack