发表刊物：Journal of Computers
关键字：Digital watermarking - Efficiency - Inverse problems - Network protocols - Public key cryptography
摘要：The asymmetric cryptosystem plays an important role in the cryptology nowadays. It is widely used in the fields of data encryption, digital watermarking, digital signature, secure network protocol, etc. However, with the improvement of computing capability, longer and longer the key length is required to ensure the security of interaction information. To shorten the key length and improve the encryption efficiency, by defining the two-dimension discrete logarithm problem (DLP), a new public-key cryptosystem is proposed. This new cryptosystem generalizes the public-key cryptosystem from one dimension to two dimensions. The core algorithms of the proposed cryptosystem are also designed, including the fast algorithm, computing the inverse matrix modulo p and finding the period. To verify the correctness and rationality of the new cryptosystem, two examples are carried out. Meanwhile, the efficiency and security are analyzed in detail. Experimental results and theoretical analyses show that the new cryptosystem possesses the advantages of the outstanding robustness, short key length, high security and encrypting many data once.
第一作者：Xiaoqiang Zhang
合写作者：Shilong Ma,Mengmeng Wang,Weiping Wang,Guiliang Zhu
论文类型：期刊论文
卷号：7
期号：1
页面范围：169-178
是否译文：否
发表时间：2012-01-01
收录刊物：EI
发布期刊链接：https://doi.org/10.4304/jcp.7.1.169-178