发表刊物：IEEE Access
关键字：Image encryption; big integer; elliptic curve cryptosystem (ECC); chaotic system
摘要：With the increasing use of media in communications, the content security of digital images attracts much attention in both the academia and the industry. Meanwhile, for the symmetric cryptosystem, the key transmission and management is burden on users. This paper proposes an asymmetric image encryption algorithm based on an elliptic curve cryptosystem (ECC). The sender and the recipient agree on an elliptic curve point based on the Diffie-Hellman public key sharing technique. First, to reduce the encryption times, the sender groups pixel values together and converts them into big integers. Second, the sender encrypts big integers with ECC and the chaotic system. Finally, the encrypted image is obtained from encrypted big integers. The proposed algorithm makes the key transmission and management relatively simple and secure. Simulation data show that the proposed algorithm exhibits both the strong security and the high efficiency.
第一作者：Xiaoqiang Zhang
合写作者：Xuesong Wang
论文类型：期刊论文
卷号：6
期号：11
页面范围：70025-70034
是否译文：否
发表时间：2018-11-01
收录刊物：SCI
发布期刊链接：https://doi.org/10.1109/ACCESS.2018.2879844