借鉴密钥托管的思想，设计了一个私钥管理方案。
Inspired by the key escrow, a scheme of private key management is designed.
传统的密钥恢复主要有两种类型：密钥托管和密钥封装。
There are two kinds of traditional key recovery: key escrow and key encapsulation.
此时需采用密钥托管技术，而且密钥托管必须是安全的。
Thus the encrypted key escrow technology must be adopted and it must be of security.
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。
Certificateless public key cryptography resolves the key escrow problem and public key authentication problem.
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。
In this paper concept of key escrow system is introduced, and algorithms about it are analysed and complemented.
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。
Key escrow technology is a kind of new technology which aims to access decoding information in emergency.
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。
Threshold scheme of key escrow based on elliptic curve system, which can avoid cheat, is proposed, and its security is analyzed.
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 paper proposed an efficient ID-based signature scheme without trusted party against the problem of key escrow of ID-based signature system.
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。
However, there are some problems in IBE such as identity authentication, private key distribution, key escrow and so on.
本文密钥托管体制的分类学就是基于上述考虑的，是为阐述和分类各种密钥托管设计方案中托管机制建立架构。
In this paper, a taxonomy is proposed for solving the problem above, which will help with describing and categorizing the escrow mechanisms of various designs.
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 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…
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.
PKI受委托管理与这些密钥的创建、处理和管理有关的一切事情。
PKI is entrusted with managing everything related to the creation, manipulation, and management of these keys.
每当使用默认构造函数创建某个托管对称加密类的新实例时，都将自动创建新的密钥和IV。
Whenever you create a new instance of one of the managed symmetric cryptographic classes using the default constructor, a new key and IV are automatically created.
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。
This scheme is used in task input structure, and every sub key of escrow agent could be reused for many times.
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 scheme solves all the problems of key escrow and certificate management, and satisfies the security requirements of a proxy ring signature scheme.
②如果某个托管代理者的子密钥泄露，系统只需为他重新分配子密钥，而不必更改其他成 员的子密钥；
When some key agents'key part are revealed, they can be renewed without any effect on the others;
②如果某个托管代理者的子密钥泄露，系统只需为他重新分配子密钥，而不必更改其他成 员的子密钥；
When some key agents'key part are revealed, they can be renewed without any effect on the others;
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