武汉工程大学学报2012，Vol.34Issue(11)：65-67,3.DOI:10.3969/j.issn.1674-2869.2012.11.014
结合公钥密码的密钥协商协议
Key agreement protocol combine with public key cryptography
蔡琼 1方旋 1方兰1
作者信息
- 1. 武汉工程大学计算机科学与工程学院,湖北武汉430074
- 折叠
摘要
Abstract
Aiming at the problems that computational cost of the public key infrastructure is large and a trusted certificate authority is prerequisite to ensure the security of the cryptosystem, the maintenance of the certificate is also the hidden danger, a key agreement protocol combined with a dynamic public key cryptography was proposed. During the authentication phase ,the prior shared information and the random number which generated by sender were concatenated and calculated their hash values, then, the hash values and the random number were transmitted to the receiver, the unidirectional hash function ensures the random number being transmitted correctly. During the encryption and decryption phase, the random numbers transmitted from each other was used to change keys of public key algorithm dynamically. This method achieves the one-time pad in the communication, it makes more efficiency than the method which regenerates the large prime numbers to change the keys. The safety of this agreement is verified by using three techniques which are commonly used on the network attack.关键词
公钥密码/密钥协商协议/一次一密Key words
public key cryptography/ key agreement protocol/ one-time pad分类
信息技术与安全科学引用本文复制引用
蔡琼,方旋,方兰..结合公钥密码的密钥协商协议[J].武汉工程大学学报,2012,34(11):65-67,3.
