Security Flaw of an ECC-based Signcryption Scheme with Anonymity
نویسندگان
چکیده
Signcryption is a cryptographic primitive that performs digital signature and public key encryption simultaneously, at lower computational costs and communication overhead than signing and encrypting separately. Recently, Chung et al. proposed an anonymous ECC-based signcryption scheme. We show that their scheme is not secure even against a chosen-plaintext attack.
منابع مشابه
On the Security of Signcryption Scheme with Key Privacy
The concept of a signcryption scheme is proposed by Zheng in 1997 [5]. Since then, there are many signcryption schemes proposed. It is only recently that a formal security proof model [1] is formalized providing security proof for Zheng’s scheme [5] in the random oracle model. In 2003, Boyen [3] proposed a secured identity-based signcryption scheme with ciphertext anonymity and provable secure ...
متن کاملA Strong Designated Verifier Ring Signcryption Scheme Providing Strongest Signers' Anonymity
The strong designated verifier ring signature scheme provides signer anonymity to protect actual signer’s identity. However, the message of the strong designated verifier ring signature may disclose some identity information related to the actual signer. To remove this flaw, this study proposes a novel strong designated verifier ring signcryption scheme. Compared with the Han et al. and Huang e...
متن کاملAnonymous ID Based Signcryption Scheme for Multiple Receivers
Anonymous signcryption is synonyms of ring signcryption which provides anonymity of the sender along with the advantages of signcryption. Multi receiver signcryption is suited for situation where a sender wants to send a message to multiple receivers in the confidential and authenticated way. This paper proposes an identity based anonymous signcryption scheme in multireceiver setting. It also p...
متن کاملAn ECC-Based Mutual Authentication Scheme with One Time Signature (OTS) in Advanced Metering Infrastructure
Advanced metering infrastructure (AMI) is a key part of the smart grid; thus, one of the most important concerns is to offer a secure mutual authentication. This study focuses on communication between a smart meter and a server on the utility side. Hence, a mutual authentication mechanism in AMI is presented based on the elliptic curve cryptography (ECC) and one time signature (OTS) consists o...
متن کاملAn efficient certificateless signcryption scheme in the standard model
Certificateless public key cryptography (CL-PKC) is a useful method in order to solve the problems of traditional public key infrastructure (i.e., large amount of computation, storage and communication costs for managing certificates) and ID-based public key cryptography (i.e., key escrow problem), simultaneously. A signcryption scheme is an important primitive in cryptographic protocols which ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- I. J. Network Security
دوره 15 شماره
صفحات -
تاریخ انتشار 2013