This paper proposed an efficient ID-based signature scheme without trusted party against the problem of key escrow of ID-based signature system.
针对现有的基于身份签名系统的密钥托管问题，提出了一种高效的基于身份的无可信中心签名方案。
Threshold scheme of key escrow based on elliptic curve system, which can avoid cheat, is proposed, and its security is analyzed.
提出了基于椭圆曲线体制的门限密钥托管方案，并对其安全性进行了分析、讨论。
This scheme is used in task input structure, and every sub key of escrow agent could be reused for many times.
该方案可用于任意接入结构，每个托管代理者的子密钥能多次使用。
Inspired by the key escrow, a scheme of private key management is designed.
借鉴密钥托管的思想，设计了一个私钥管理方案。
The scheme solves the key escrow problem through binding two parts of keys with a same identity. And the efficiency of the scheme is higher than the existing schemes.
方案通过将两部分密钥绑定于同一身份的方法解决了密钥托管问题，且与已知的一些方案相比，新方案提高了计算效率。
This scheme solves all the problems of key escrow and certificate management, and satisfies the security requirements of a proxy ring signature scheme.
该方案没有密钥的托管问题，也不需要管理证书，并且满足代理环签名方案所有的安全性要求。
This paper proposes a new ID-based signature scheme without honest PKGs . It solves the problem of key escrow.
本文提出一个无需PKG诚实可信的一个签名方案，从根本上解决了密钥暴露的问题。
The scheme is based on certificateless cryptosystem, so it can overcome the key escrow of ID-based cryptosystem, and avoid the public key management and storage of certificate-based cryptosys…
方案基于无证书的密码体制，克服了基于身份的密码体制的密钥托管问题，避免基于证书密码体制的公钥存储和管理问题。
The scheme is based on certificateless cryptosystem, so it can overcome the key escrow of ID-based cryptosystem, and avoid the public key management and storage of certificate-based cryptosys…
方案基于无证书的密码体制，克服了基于身份的密码体制的密钥托管问题，避免基于证书密码体制的公钥存储和管理问题。
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