Study on forward secrecy of diffie-hellman key agreement protocol 密钥建立协议的前向保密性研究
The key can be used to determine key agreement, such as a key created using the diffie-hellman key agreement algorithm 密钥可用于确定密钥协议,如使用diffie-hellman密钥协议算法创建的密钥。
Numerous diffie-hellamn based ak and akc protocol have been proposed, however, many have subsequently been found to have some security flaws 基于diffie-hellman的ak和akc协议得到了很大的发展,但许多协议仍有一定的安全缺陷。
In this paper, two kinds of public-key cryptography of data transport are presented rsa encryption algorithm and diffie-hellman encryption algorithm 本文介绍了数据传输中公开密钥算法中的两种-rsa加密算法和diffie-hellman加密算法
It includes functions of tonglink / q, using rc5 encryption algorithm, md5 message digesting algorithm, diffie-hellman key exchanging algorism to implement point-to-point security 描述了通过md5消息摘要算法,rc5加密算法,diffie-hellman密钥交换算法,密钥保存等方法实现点-点加密的过程。
It investigates the authentication mechanism on diffie-hellman ( dh ), which is why the ike protocol can " t avoid meeting denial-of-service attacks . the weak key confirmation and its key protocol are investigated 最后,本文探讨了弱密钥认证方式(weakkeyconfirmation)以及基于这种认证方式构造的一种密钥协商协议。
Under assumptions of kea3, a decision diffie-hellman and a variant of target collision resistance tcrv, the new scheme is proved secure against indistinguishable adaptive chosen ciphertext attack ind-cca2 rd提出的elgamaldeg方案具有相同的效率和带宽,而deg方案在2004年亚密会上证明为选择密文攻击ind-cca1安全,而新的体制则是ind-cca2安全的。
Recently, several key-exposure-free chameleon hashes have been constructed based on rsa assumption and sdh strong diffie-hellman assumption . in this paper, we propose a factoring-based chameleon hash scheme which is proven to enjoy all advantages of the previous schemes 更具体地讲,变色签名的构造遵循了著名的先哈希再签名的范例hash-and-signparadigm,但是稍有不同
4 . study existing key-exchange protocols, promote and implement a key exchange protocol under the hardness assumption of the decisional diffie-hellman problem as well as the existence of collision-free hash functions . 5 在分析了密钥交换方法的基础上设计并实现了基于离散对数困难问题(dlp)和diffie-hellman密钥交换协议,辅以hash函数和公钥证书,进行会话密钥交换方法。
The main results of this thesis are as follows : 1 . based on the thoughts of " diffie-hellman decision problem " and anonymous signature, an unconditionally anonymous sign-cryption algorithm is proposed and its security proof is given 研究成果体现在如下几个方面:(1)目前的签密算法要求签密人的身份是公开的,作者利用无条件匿名签名的思想,给出了一个无条件匿名的签密算法,并给出了相应的安全性证明。