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Universally Composable Signcryption
2007One of the challenges within public-key based cryptosystems is providing the user with a convenient interface, while retaining security. In the universal composability framework, we propose an ideal functionality for secure messaging, with a user-friendly interface.
Kristian Gjøsteen, Lillian Kråkmo
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Plaintext Checkable Signcryption
2015Digital signature guarantees the authenticity and encryption ensures the confidentiality of a transmitted message. Signcryption, as the name indicates, is a primitive which serves both these purpose with added efficiency and features. In this paper, we introduce a variant of signcryption called Plaintext Checkable Signcryption PCSC, which extends ...
Angsuman Das, Avishek Adhikari
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Efficient Signcryption for Heterogeneous Systems
IEEE Systems Journal, 2013Privacy and authentication are the two main security goals in secure communications. To solve the secure communications problem between two heterogeneous systems, we propose two efficient signcryption schemes that can simultaneously achieve confidentiality, integrity, authentication, and nonrepudiation in a logical single step.
Fagen Li +2 more
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Incrementally Executable Signcryptions
2014We present the concept of incrementally executable signcryptions, which is a generalization of traditional on-line/off-line signcryption and facilitates optimizing the sender’s off-line computation. With an incrementally executable signcryption scheme, the sender can activate signcryption process incrementally by its given sequential input: the sender ...
Dan Yamamoto +2 more
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ECDSA-Verifiable Signcryption Scheme with Signature Verification on the Signcrypted Message
2008In this paper, we propose a signcryption scheme which provides all the following properties at the same time. (1) forward security: the private key of a sender does not help any attack to break the confidentiality of any signcrypted message generated by the sender.
Raylin Tso +2 more
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Indentity-based broadcast signcryption
Computer Standards and Interfaces, 2008Broadcast encryption schemes allow a center to deliver encrypted data to a large set of users so that only a particular subset of privileged users can decrypt it. Most of previous works about broadcast encryption only provide confidentiality of the message.
Xiangjun Xin, Fagen Li, Yupu Hu
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On the Security of a Group Signcryption Scheme from Distributed Signcryption Scheme
2005Signcryption denotes a cryptographic method, which can process encryption and digital signature simultaneously. So, adopting such schemes, computational cost of encryption and signature compared to traditional signature-then-encryption can be reduced to a great extent. Based on the existing distributed signcryption schemes, Kwak and Moon proposed a new
Haiyong Bao, Zhenfu Cao, Haifeng Qian
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Efficient signcryption in the standard model
Concurrency and Computation: Practice and Experience, 2011SUMMARYSigncryption is a cryptographic primitive that fulfills both the functions of digital signature and public key encryption simultaneously, at a cost significantly lower than that required by the traditional signature‐then‐encryption approach. The performance advantage of signcryption over the signature‐then‐encryption method makes signcryption ...
Fagen Li, Mingwu Zhang, Tsuyoshi Takagi
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2010
Signcryption can provide improvements on efficiency for public-key cryptographic protocols over more traditional cryptographic mechanisms that offer security functions separately. Notably, applying signcryption in protocols where message confidentiality, integrity, and authenticity are all required is expected to result in protocols with better ...
Yang Cui, Goichiro Hanaoka
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Signcryption can provide improvements on efficiency for public-key cryptographic protocols over more traditional cryptographic mechanisms that offer security functions separately. Notably, applying signcryption in protocols where message confidentiality, integrity, and authenticity are all required is expected to result in protocols with better ...
Yang Cui, Goichiro Hanaoka
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Cryptoanalysis of Two Signcryption Schemes
2009 Fifth International Conference on Information Assurance and Security, 2009Certificateless PKC and self-certified PKC are two new public key systems. They remove the necessity of certificate to ensure the authentication of the user's public key in CB-PKC and also overcome the inherent key escrow problem in IB-PKC. Recently, Zhang et.al proposed a self-certified signcryption scheme, and Wu et.al gave a certificateless ...
Jianhong Zhang, Qin Geng
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