signature n. 1.签名,署名,画押,盖章。 2.【音乐】记号〔调号或拍子记号〕;【无线电】(广播节目开始或完毕的)信号曲;【代数】符号差;【印刷】装钉用折叠号码;【医古】外征;【药学】(注明在药瓶上的)用法说明〔略 S, sig.〕;〔古语〕象征,特征。 add one's signature to 在…上签字。 a time signature 【音乐】拍子记号。 a key signature 【音乐】调号。 bear the signature 有署名,签过字。 over sb.'s signature 经某人签名,有某人签字为凭。
To promote application interoperability , the candidate specifies a set of signature algorithms that are required to be implemented , though their use is at the discretion of the signature creator 结果证实,算法是异或跟一个常量密钥的简单组合,并且还在猜谜杂志中发现了比那还要脆弱的替代密码。
After synthetically analysis of all kinds of e - cash system models , and the problems in the modern e - cash system was given , fair e - cash business protocol based on credit overdraft was proposed , which used the multi - signature algorithm 摘要综合分析电子现金系统各种模型,针对目前电子现金交易系统存在的问题,提出了基于信用透支的公平电子现金交易协议。
This thesis brings forward a new encryption algorithm and a digital signature algorithm that aim at the insecure factors . at the base of these algorithms we can realize the online electronic contracting 本文正是针对这些不安全因素和新特点提出具有更高可靠性的文件加密和数字签名算法,并以此为基础实现网上电子签约,为日新月异的电子商务提供更广阔的发展空间。
With the fast development of internet applications , information security has beome more and more important . the problem of the trustworthiness and security has also been more and more important . so we need best digital signature algorithm and cryptographic algorithm 随着网络逐步成为社会的主要神经,网络上的诚信问题和安全问题日益备受关注,数字签名是网络用户实现电子签名的主要手段,为用户提供了诚信和安全的保障。
The elliptic curve digital signature algorithm ( ecdsa ) is the elliptic curve analogue of the digital signature algorithm ( dsa ) . it was accepted in 1999 as an ansi standard , and was accepted in 2000 as ieee and nist standards . unlike the ordinary discrete logarithm problem and the integer factorization problem , no subexponential - time is known for the elliptic curve discrete logarithm problem . for this reason , the strength - per - key - bit is substantially greater in an algorithm that uses elliptic curves 椭圆曲线数字签名算法( ecdsa )是数字签名算法( dsa )的椭圆曲线对等。它先后成为ansi , ieee , nist和iso的标准,而且其它的一些组织正在考虑成为其标准。不象普通的离散对数问题和因数分解问题,椭圆曲线离散对数问题没有已知的亚指数算法,所以使用椭圆曲线的算法在密钥的位强度是足够高的。
Hence , in this paper , we mainly study the digital multisignature scheme based on elliptic curve cryptography ( ecc ) . the existing elliptic curve digital signature algorithms do not realize secret partition and private key sharing , and do not fit for creating the digital multisignature . to solve this problem , we present an improved elliptic curve digital signature algorithm iecdsa for the digital multisignature 本文主要从以下四个方面对基于椭圆曲线密码算法体制的多重数字签名技术进行探讨:第一是针对现有的椭圆曲线数字签名算法无法进行秘密分割,不能实现多重数字签名私钥共享因而不适合进行多重数字签名的缺点,提出了一种适合进行多重数字签名的改进的椭圆曲线数字签名方案iecdsa 。
In this article , we study the implemetation of fpga for elliptic curve digital signature algorithm . based on number thesis 、 abstract algebra and complex thesis , integrated information theory 、 cryptography and some specific relevant algorithm , we ascertain the implementation of ecdsa for hardware project : according to the design idea of hiberarchy and modularization , we adopt very high speed ic hardware description language ( vhdl ) as design input and simulate the design in every level and every model for the correct of the fundamental design . after finish the top design , we perform the whole simulation . then , we carry out the timing simulation after the logic synthes and layout 本文从实际应用出发,研究了椭圆曲线数字签名算法的fpga的实现:以基本的数论理论、抽象代数和复杂度理论为依据,结合信息论、密码学的一些知识以及一些具体的相关算法,确定了ecdsa的硬件实现方案:按照层次化、模块化的设计思想,采用硬件描述语言vhdl作为设计输入进行ecdsa的硬件设计;在每个设计层次和每个模块都进行了仿真验证,得以保证底层设计的正确性。在确保每个模块的设计正确后,完成对电路的顶层设计,进行总体的仿真。
At last , the implementation of a wlan authentication system based on the 802 . 1x , in which eap - tls certification protocol and the ellipse key algorithm are used , is given . the authentication system includes applicant system in client , authentication system and servers using radius . in the implementation , the ecc signature algorithm is used to create certification , and the ecmqv is used in key negotiation stage 最后文章结合eap - tls认证协议以及椭圆曲线密钥算法实现了802 . 1x无线局域网认证系统,包括了客户端申请者系统、认证者系统以及radius认证服务器系统,在实现过程中采用ecc签名算法来生成证书,密钥协商阶段采用ecmqv密钥协商协议。
In this paper , the conventional crypt system and public key crypt system are analyzed , especially the security property of rsa public key algorithm which is widely used at present the merit of elliptic curve public key crypt system ( ecc ) is expounded . a digital signature algorithm based on ecc is constructed . in addition , a set of digital signature and encrypt system is designed using borland c + + builder developmental flat roof 本文主要对传统密码体制和公钥密码体制进行了分析,特别是对目前应用较为广泛的rsa公钥密码算法进行了安全性分析,阐述了椭圆公钥密码体制( ecc )的优点,构造了基于ecc的数字签名算法,并利用borlandc + + builder软件开发平台,设计了一套数字签名与加密系统。
The digital signature algorithms with special attributes are studied , and the new digital signature scheme , a undeniable forward - secure digital signature scheme based on zero - knowledge proof , is proposed based on the difficult mathematic problems . it is the first time that the undeniable property and the forward - secure property are combined in a digital signature scheme 以数学中的困难问题为理论基础研究了具有特殊性质的数字签名算法,提出了满足特殊需求的新的数字签名算法- - - -基于零知识证明的不可否认前向安全数字签名算法,首次将不可否认数字签名与前向安全数字签名结合起来。