摘要
提出了一种利用算术编码实现数据加密的算法。除了能加密数据外,还能对文本数据达到一倍左右的压缩效果,因此特别适宜于机密数据的传输和保存。更进一步,通过预加密一个随机数的办法,消除了已知明文导出密钥的可能性。
Arithmetic coding is a relatively new loss-less data compression technique that has attracted much attention in recent years. This paper presents a new data encryption algorithm by use of arithmetic codes. The algorithm can achieve a high compression performance for text messages,and thus is very suitable for the transmission and storage of secret data. Furthermore,by encoding a random number,we avoid the possibility of deducing the secret key provided that the cipher text is known.
出处
《通信学报》
EI
CSCD
北大核心
1999年第4期92-96,共5页
Journal on Communications
基金
复旦大学专用集成电路与系统国家重点实验室资助项目