哈尔滨商业大学学报（自然科学版）2026，Vol.42Issue(4)：457-460,4.
一种改进的RSA-ELGamal密码体制
An improved RSA-ELGamal cryptographic system
奉璐新 1范自强1
作者信息
- 1. 安徽理工大学 数学与大数据学院,安徽 淮南,232001
- 折叠
摘要
Abstract
RSA and ELGamal were the most commonly used data security encryption systems.However,recent research has found that the original RSA and ELGamal had several vulnerabilities that made them susceptible to being cracked.Based on enhanced RSA and ELGamal encryption algorithms,a new RSA-ELGamal encryption scheme was proposed.In this cryptographic system,the sender and the receiver shared a set of keys,the shared key was held by the sender,the shared key was introduced into the ELGamal cipher system.The sender encrypted the shared key using the RSA encryption algorithm and encrypted the plaintext using the ElGamal encryption algorithm,and the sender sent the encrypted shared key and ciphertext to the receiver.In the improved RSA-ELGamal cryptosystem,a shared key was introduced to increase the barrier for attackers,which a third party intercepted the shared key through a shared channel,obtained an encrypted shared key instead of the real shared key.This cryptosystem greatly enhanced the security of this system.关键词
RSA/ELGamal/共享密钥/大整数分解问题/离散对数问题Key words
RSA/ELGamal/shared key/IFP/DLP分类
信息技术与安全科学引用本文复制引用
奉璐新,范自强..一种改进的RSA-ELGamal密码体制[J].哈尔滨商业大学学报（自然科学版）,2026,42(4):457-460,4.
