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1.
A new two-factor authenticated key agreement protocol based on biometric feature and password was proposed.The protocol took advantages of the user’s biological information and password to achieve the secure communication without bringing the smart card.The biometric feature was not stored in the server by using the fuzzy extractor technique,so the sensitive information of the user cannot be leaked when the server was corrupted.The authentication messages of the user were protected by the server’s public key,so the protocol can resist the off-line dictionary attack which often appears in the authentication protocols based on password.The security of the proposed protocol was given in the random oracle model provided the elliptic computational Diffie-Hellman assumption holds.The performance analysis shows the proposed protocol has better security.  相似文献   

2.
Recently, Pippal et al. proposed an authentication scheme for multi-server architecture and claimed that their scheme had many advantages compared to the previous schemes, such as security, reliability, etc. In this paper, we reanalyze the security of their scheme and demonstrate that their scheme is vulnerable to impersonation attack even if the adversary doesn’t know the information stored in the user’s smart card. Moreover, the adversary can proceed off-line password guessing attack if the user’s smart card is compromised. In order to eliminate those shortcomings, we propose an improved multi-server authentication scheme which can preserve user anonymity. We demonstrate the completeness of the proposed scheme through the BAN logic. Compared with other related protocols, the security analysis and performance evaluation show that our proposed scheme can provide stronger security.  相似文献   

3.
Smart‐card‐based remote user password authentication schemes are commonly used for providing authorized users a secure method for remotely accessing resources over insecure networks. In 2009, Xu et al. proposed a smart‐card‐based password authentication scheme. They claimed their scheme can withstand attacks when the information stored on the smart card is disclosed. Recently, Sood et al. and Song discovered that the smart‐card‐based password authentication scheme of Xu et al. is vulnerable to impersonation and internal attacks. They then proposed their respective improved schemes. However, we found that there are still flaws in their schemes: the scheme of Sood et al. does not achieve mutual authentication and the secret key in the login phase of Song's scheme is permanent and thus vulnerable to stolen‐smart‐card and off‐line guessing attacks. In this paper, we will propose an improved and efficient smart‐card‐based password authentication and key agreement scheme. According to our analysis, the proposed scheme not only maintains the original secret requirement but also achieves mutual authentication and withstands the stolen‐smart‐card attack. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   

4.

Remote user authentication schemes provide a system to verify the legitimacy of remote users’ authentication request over insecure communication channel. In the past years, many authentication schemes using password and smart card have been proposed. However, password might be guessed, leaked or forgotten and smart card might be shared, lost or stolen. In contrast, the biometrics which utilize biological characteristics, such as face, fingerprint or iris, have no such weakness. With the trend of mobile payment, more and more applications of mobile payment use biometrics to replace password and smart card. In this paper, we propose a biometric-based remote authentication scheme substituting biometric and mobile device bounded by user for password and smart card. This scheme is more convenient, suitable and securer than the schemes using smart cards on mobile payment environment.

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5.
基于密码的用户远程认证系统已被广泛应用,近年来的研究发现,单一口令系统容易遭受字典分析、暴力破解等攻击,安全性不高.生物特征与密码相结合的认证方式逐渐加入远程认证系统中,以提高认证系统的安全水平.但现有认证系统通常工作在单一服务器环境中,扩展到多服务器环境中时会遇到生物特征模板和密码容易被单点突破、交叉破解的问题.为了克服以上问题,提出了一种基于生物特征和混沌映射的多服务器密钥认证方案,该方案基于智能卡、密码和生物特征,可明显提高多服务器身份认证系统的安全性及抗密码猜解的能力.  相似文献   

6.
With the use of smart card in user authentication mechanisms, the concept of two‐factor authentication came into existence. This was a forward move towards more secure and reliable user authentication systems. It elevated the security level by requiring a user to possess something in addition to know something. In 2010, Sood et al. and Song independently examined a smart‐card‐based authentication scheme proposed by Xu et al. They showed that in the scheme of Xu et al., an internal user of the system can turn hostile to impersonate other users of the system. Both of them also proposed schemes to improve the scheme of Xu et al. Recently, Chen et al. identified some security problems in the improved schemes proposed by Sood et al. and Song. To fix these problems, Chen et al. presented another scheme, which they claimed to provide mutual authentication and withstand lost smart card attack. Undoubtedly, in their scheme, a user can also verify the legitimacy of server, but we find that the scheme fails to resist impersonation attacks and privileged insider attack. We also show that the scheme does not provide important features such as user anonymity, confidentiality to air messages, and revocation of lost/stolen smart card. Besides, the scheme defies the very purpose of two‐factor security. Furthermore, an attacker can guess a user's password from his or her lost/stolen smart card. To meet these challenges, we propose a user authentication method with user anonymity. We show through analysis and comparison that the proposed scheme exhibits enhanced efficiency in contrast to related schemes, including the scheme of Chen et al. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   

7.
刘丽萍 《电信科学》2015,31(12):97-102
针对无线传感器网络(WSN)用户远程安全认证问题,分析现有方案的不足,提出一种新颖的基于智能卡的WSN远程用户认证方案。通过用户、网关节点和传感器节点之间的相互认证来验证用户和节点的合法性,并结合动态身份标识来抵抗假冒攻击、智能卡被盗攻击、服务拒绝攻击、字典攻击和重放攻击。同时对用户信息进行匿名保护,且用户能够任意修改密码。性能比较结果表明,该方案具有较高的安全性能,且具有较小的计算开销。  相似文献   

8.
Understanding security failures of cryptographic protocols is the key to both patching existing protocols and designing future schemes. In this paper, we analyze two recent proposals in the area of password‐based remote user authentication using smart cards. First, we point out that the scheme of Chen et al. cannot achieve all the claimed security goals and report its following flaws: (i) it is vulnerable to offline password guessing attack under their nontamper resistance assumption of the smart cards; and (ii) it fails to provide forward secrecy. Then, we analyze an efficient dynamic ID‐based scheme without public‐key operations introduced by Wen and Li in 2012. This proposal attempts to overcome many of the well‐known security and efficiency shortcomings of previous schemes and supports more functionalities than its counterparts. Nevertheless, Wen–Li's protocol is vulnerable to offline password guessing attack and denial of service attack, and fails to provide forward secrecy and to preserve user anonymity. Furthermore, with the security analysis of these two schemes and our previous protocol design experience, we put forward three general principles that are vital for designing secure smart‐card‐based password authentication schemes: (i) public‐key techniques are indispensable to resist against offline password guessing attack and to preserve user anonymity under the nontamper resistance assumption of the smart card; (ii) there is an unavoidable trade‐off when fulfilling the goals of local password update and resistance to smart card loss attack; and (iii) at least two exponentiation (respectively elliptic curve point multiplication) operations conducted on the server side are necessary for achieving forward secrecy. The cryptanalysis results discourage any practical use of the two investigated schemes and are important for security engineers to make their choices correctly, whereas the proposed three principles are valuable to protocol designers for advancing more robust schemes. Copyright © 2012 John Wiley & Sons, Ltd.  相似文献   

9.
智能卡与口令相结合的身份认证方式既可保留使用强密钥优势,又具有使用方便的特点,是一种理想的安全双因子认证方式。当前许多公开的口令认证方案,要么需要较强的计算环境而难于采用智能卡快速实现,要么不能抵抗离线口令猜测攻击或服务端内部攻击而存在安全缺陷。提出一种非平衡型口令认证方案,基于智能卡和用户口令双因子设计,具有简便高效、口令安全、双向认证特点,能够抵御离线口令猜测攻击和服务端内部攻击,可用于满足设备开机时的安全认证需求。  相似文献   

10.
Multiserver authentication complies with the up‐to‐date requirements of Internet services and latest applications. The multiserver architecture enables the expedient authentication of subscribers on an insecure channel for the delivery of services. The users rely on a single registration of a trusted third party for the procurement of services from various servers. Recently, Chen and Lee, Moon et al, and Wang et al presented multiserver key agreement schemes that are found to be vulnerable to many attacks according to our analysis. The Chen and Lee scheme was found susceptible to impersonation attack, trace attack, stolen smart card attack exposing session key, key‐compromise impersonation attack, and inefficient password modification. The Moon et al is susceptible to stolen card attack leading to further attacks, ie, identity guessing, key‐compromise impersonation attack, user impersonation attack, and session keys disclosure, while Wang et al is also found to be prone to trace attack, session‐specific temporary information attack, key‐compromise information attack, and privileged insider attack leading to session key disclosure and user impersonation attacks. We propose an improved protocol countering the indicated weaknesses of these schemes in an equivalent cost. Our scheme demonstrates automated and security analysis on the basis of Burrows‐Abadi‐Needham logic and also presents the performance evaluation for related schemes.  相似文献   

11.
Two‐factor user authentication scheme allows a user to use a smart card and a password to achieve mutual authentication and establish a session key between a server and a user. In 2012, Chen et al. showed that the scheme of Sood et al. does not achieve mutual authentication and is vulnerable to off‐line password guessing and smart card stolen attacks. They also found that another scheme proposed by Song is vulnerable to similar off‐line password guessing and smart card stolen attacks. They further proposed an improved scheme. In this paper, we first show that the improved scheme of Chen et al. still suffers from off‐line password guessing and smart card stolen attacks, does not support perfect forward secrecy, and lacks the fairness of session key establishment. We then propose a new security‐enhanced scheme and show its security and authentication using the formal verification tool ProVerif, which is based on applied pi calculus. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   

12.
Nowadays, the password-based remote user authentication mechanism using smart card is one of the simplest and convenient authentication ways to ensure secure communications over the public network environments. Recently, Liu et al. proposed an efficient and secure smart card based password authentication scheme. However, we find that Liu et al.’s scheme is vulnerable to the off-line password guessing attack and user impersonation attack. Furthermore, it also cannot provide user anonymity. In this paper, we cryptanalyze Liu et al.’s scheme and propose a security enhanced user authentication scheme to overcome the aforementioned problems. Especially, in order to preserve the user anonymity and prevent the guessing attack, we use the dynamic identity technique. The analysis shows that the proposed scheme is more secure and efficient than other related authentication schemes.  相似文献   

13.
Smart‐card‐based password authentication scheme is one of the commonly used mechanisms to prevent unauthorized service and resource access and to remove the potential security threats over the insecure networks and has been investigated extensively in the last decade. Recently, Chen et al. proposed a smart‐card‐based password authentication scheme and claimed that the scheme can withstand offline password guessing attacks even if the information stored in the smart card is extracted by the adversary. However, we observe that the scheme of Chen et al. is insecure against offline password guessing attacks in this case. To remedy this security problem, we propose an improved authentication protocol, which inherits the merits of the scheme of Chen et al. and is free from the security flaw of their scheme. Compared with the previous schemes, our improved scheme provides more security guarantees while keeping efficiency. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   

14.
Various user authentication schemes with smart cards have been proposed. Generally, researchers implicitly assume that the contents of a smart card cannot be revealed. However, this is not true. An attacker can analyze the leaked information and obtain the secret values in a smart card. To improve on this drawback, we involve a fingerprint biometric and password to enhance the security level of the remote authentication scheme Our scheme uses only hashing functions to implement a robust authentication with a low computation property. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   

15.
Recently, Wang and Ma (Wireless Pers Commun, 2012. doi:10.1007/s11277-011-0456-7) proposed a smart card based authentication scheme for multi-server environment. They also demonstrated that their scheme could overcome various attacks. In this paper, the security of Wang et al.’s scheme is evaluated. Our analysis shows their scheme is vulnerable to the server spoofing attack, the impersonation attack, the privileged insider attack and the off-line password guessing attack.  相似文献   

16.
Authentication and key agreement (AKA) provides flexible and convenient sercices. Most traditional AKA protocols are designed to apply in single-server environment, where a user has to register at different servers to access different types of network services and the user have to remember or manage a large number of usernames and passwords. Later, multi-server AKA protocols resolve the repeated registration problem of single-server AKA protocols, where a user can access different servers to get different services using a single registration and the same username and password. Recently, in 2015, Lu et al proposed a light-weight ID based authentication and key agreement protocol for multi-server architecture, referred to as LAKA protocol. They claimed their protocol can overcome all shortcomings which existed in Xue et al’s protocol. Unfortunately, our further research shows that LAKA protocol still suffers from server spoofing attack, stolen smart card attack etc. To overcome the weakness of LAKA protocol, an energy-efficient and lightweight authentication and key agreement protocol for multi-server architecture is proposed (abbreviated to ELAKA). The ELAKA protocol not only provides the security features declared by LAKA protocol, but also has some other advantages. First, the ELAKA protocol can realize authentication and key agreement just by three handshakes with extremely low communication cost and computation cost between users and servers, which can achieve a delicate balance of security and performance. Second, ELAKA protocol can enable the user enjoy the remote services with privacy protection. Finally the ELAKA protocol is proved secure against known possible attacks by using BAN logic. As a result, these features make ELAKA protocol is very suitable for computation-limited mobile devices (such as smartphone, PAD, tablets) in comparison to other related existing protocols.  相似文献   

17.
To circumvent using of multiple single servers, the theory of multiserver communication exists and numerous authentication protocols put forward for providing secure communication. Very recently, Amin‐Biswas proposes bilinear pairing–based multiserver scheme by describing some security pitfalls of Hsieh‐Leu protocol and claims that it is secured against related security threats. However, this paper claims that Amin‐Biswas protocol is still susceptible to off‐line identity and password guessing attack, user untraceability attack, and server masquerading attack. The cryptographic protocol should be attacks‐free for real‐time application. To achieve attacks‐free security, we put forward smart card–based multiserver authentication protocol by using the concept of bilinear pairing operation. The formal method strand space model has been used to prove the correctness of the proposed scheme. Additionally, rigorous security analysis ensures pliability of common security threats. The performance and security features of our scheme are also compared with that of the similar existing schemes. The comparison results show that our protocol achieves more security features with less complexity.  相似文献   

18.
Authentication schemes have been widely deployed access control and mobility management in various communication networks. Especially, the schemes that are based on multifactor authentication such as on password and smart card come to be more practical. One of the standard authentication schemes that have been widely used for secure communication over the Internet is session initiation protocol (SIP). The original authentication scheme proposed for SIP was vulnerable to some crucial security weaknesses. To overcome the security problems, various improved authentication schemes have been developed, especially based on elliptic curve cryptography (ECC). Very recently, Zhang et al . proposed an improved authentication scheme for SIP based on ECC using smart cards to overcome the security flaws of the related protocols. Zhang et al . claimed that their protocol is secure against all known security attacks. However, this paper indicates that Zhang et al . protocol is still insecure against impersonation attack. We show that an active attacker can easily masquerade as a legal server to fool users. As a remedy, we also improve Zhang et al . protocol by imposing a little extra computation cost. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   

19.
In this digital era, two entities can exchange the messages over internet even through the physical distance between them is much far. Before exchange they require to authenticate each other via authentication scheme. Biometric is one of the unique feature for each entity and can be accustomed to identify the authenticity of the entity. Motivated by this, many researchers had proposed the various schemes based on biometric feature for authentication using smart card. As smart card is not a temper resistance consummately, various attacks have been identified by the researchers in the biometric based authentication schemes. In this paper we review Wen et al.’s scheme and we find that Wen et al.’s scheme is vulnerable to insider attack, denial of service attack and user anonymity cannot achieve by them. Then we propose new remote user authentication algorithm where our algorithm is secure.  相似文献   

20.
为满足高安全级别场景(如军事、国家安全、银行等)的应用需求,进一步提高无线传感器网络用户认证协议的安全性,提出了基于生物特征识别的三因素用户认证协议.针对Althobaiti协议无法防御节点妥协攻击、模拟攻击、中间人攻击和内部特权攻击的安全缺陷,增加智能卡和密码作为协议基本安全因素,并利用生物特征标识信息生成函数与回复函数处理的生物特征标识作为附加安全因素;在密钥管理中,为每个节点配置了与网关节点共享唯一密钥,保证认证过程的独立性与安全性;实现用户自主选择与网关节点的共享密钥,提高公共信道通信的安全性;在网关节点不参与的情况下,设计密码和生物特征标识更新机制,保证二者的新鲜性.通过Dolev-Yao拓展威胁模型的分析与AVISPA的OFMC分析终端的仿真,结果证明该认证协议克服了Althobaiti协议安全缺陷,且对计算能力的需求小于公钥加密.权衡安全性与计算成本,该协议适用于资源受限且安全需求高的无线传感器网络应用.  相似文献   

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