Revisiting the Security Model for Timed-Release Encryption with Pre-open Capability
Revisiting the Security Model for Timed-Release Encryption with Pre-open Capability
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DOI：
10.1007/978-3-540-75496-1_11
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发表时间：
2007-10
影响因子：
5.9
通讯作者：
A. Dent;Qiang Tang
中科院分区：
文献类型：
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作者：
A. Dent;Qiang Tang
具有预开放能力的定时释放加密(tre-PC)的概念是由Hwang、Yum和Lee提出的。在TRE-PC方案中，消息被加密的方式使得它只能在特定时间点被解密，或者如果发送者释放称为预开密钥的一段陷门信息。本文研究了TRE-PC方案的安全模型，证明了可以使用KEM-DEM方法构造一个TRE-PC方案，并提供了一个有效的TRE-PC方案的例子。
The concept of timed-released encryption with pre-open capability (TRE-PC) was introduced by Hwang, Yum and Lee. In a TRE-PC scheme, a message is encrypted in such a way that it can only be decrypted at a certain point in time or if the sender releases a piece of trapdoor information known as a pre-open key. This paper examines the security model for a TRE-PC scheme, demonstrates that a TRE-PC scheme can be constructed using a KEM–DEM approach, and provides an efficient example of a TRE-PC scheme.