This might involve key escrow, back doors into a system, or other methods.
这可能涉及密钥契约、在系统中开后门或其它方法。
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。
There are two kinds of traditional key recovery: key escrow and key encapsulation.
传统的密钥恢复主要有两种类型：密钥托管和密钥封装。
Thus the encrypted key escrow technology must be adopted and it must be of security.
此时需采用密钥托管技术，而且密钥托管必须是安全的。
Key escrow technology is a kind of new technology which aims to access decoding information in emergency.
密钥托管技术是一种能够在紧急情况下提供获取信息解密密钥新途径的技术。
Certificateless public key cryptography resolves the key escrow problem and public key authentication problem.
无证书公钥密码体制解决了密钥托管问题和公钥认证问题。
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。
In this paper concept of key escrow system is introduced, and algorithms about it are analysed and complemented.
本文介绍了密钥托管的概念，分析并补充了几种密钥托管算法。
However, there are some problems in IBE such as identity authentication, private key distribution, key escrow and so on.
同时，基于身份加密的公钥密码系统中也存在着一些问题，如身份认证、私钥分发以及密钥托管等。
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 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。
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。
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。
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。
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。
In order to eliminate the use of certificates in traditional proxy signature and the key-escrow problem in identity-based proxy signature, the notion of certificateless proxy signature was introduced.
无证书的代理签名方案在保留基于身份的代理签名不需要证书的优点下，成功地解决了基于身份的代理签名方案中的密钥托管问题。
In order to eliminate the use of certificates in traditional proxy signature and the key-escrow problem in identity-based proxy signature, the notion of certificateless proxy signature was introduced.
无证书的代理签名方案在保留基于身份的代理签名不需要证书的优点下，成功地解决了基于身份的代理签名方案中的密钥托管问题。
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