一种新型基于身份密钥隔离的签名方案

A New Identity-Based Key-Insulated Signature Scheme

密钥隔离方案能够在一定程度上解决基于身份的密码系统中密钥分发中心权限过于集中的问题。基于支持多外围设备的身份密钥隔离签名方案和Hess签名方案,提出了一种新的基于身份密钥隔离数字签名方案;进一步针对密钥隔离、强密钥隔离和密钥更新的安全性进行了分析;最后,通过与支持多外围设备的身份密钥隔离签名方案和Hess签名方案进行效率分析与比较,该方案验算次数少、签名长度短、速度快,更适用于资源受限的智能手机中。

Key-Insulatedschemecansolvekeydistributioncenterpermissionsconcentrationproblemsbasedonidentitycryptographicsystem in a way.This paper propose a new Identity-Based Key-Insulated digital signature scheme on the basis of supporting more peripheral Identity-Based Key-Insulated signature scheme and Hess signature scheme; and Key-Insulated,strong Key-Insulated and the key update securitywere analyzed; Finally, the scheme compared efficiencywith supporting more peripheral Identity-Based Key-Insulated signature scheme and Hess signature scheme,the scheme is checking fewer,shorter length of signature,faster,more applicable in resource constrained smart phones.