Papers by Keyword: Standard Model

Abstract: This paper describes standard model for Smart Grid Home Energy Management System (HEMS). It is presently absence from the requirement of the service and standard model. Generally HEMS provides energy management consulting service based on digital home environments and defines the essential requirement. It also provides the guideline of the related technology development and infrastructure. We proposed the use cases and the communication requirement that component of devices and interface for home energy management system.

Abstract: Certificateless public key cryptography eliminates inherent key escrow problem in identity-based cryptography, and does not yet requires certificates as in the traditional public key infrastructure. Recently, Yu et al. propose a new certificateless signature scheme and their scheme offers shorter system parameters and higher computational efficiency than the previous schemes in the standard model. However, in this paper, we show Yu et al.'s certificateless signature scheme is vulnerable to malicious-but-passive KGC attack where a malicious KGC can forge valid signatures by embedding extra trapdoors in the system parameter.

Abstract: Privacy has become one of the most important human rights of the modern age. In a proxy multi-signature scheme, the verifier need get all the original signers’ public keys together to verify its validity. However, the relationships between the proxy signer and the original signers would be leaked in the verification process. In this paper, we propose a secure proxy multi-signature scheme in standard model with the property of independent verification. In the scheme, the verifier can verify the signature using the public keys of the special original signers, rather than collecting all the original signers’ public keys.

Abstract: It is known to all that the right-handed neutrinos can not be produced and detected at present and future colliders in the most popular see-saw scenarios for the simple reason that they are too heavy in these models. However, a simple extension of the Standard Model (SM) particle content [1], including mirror fermions,two triplet and one singlet Higgs fields, leads to a scenario in which the see-saw mechanism [2] is realized with the Majorana mass of the right-handed neutrino being of the order of the electroweak scale or smaller. Motivated by this viewpoint, we have studied the model suggested by Hung recently and given the constraints on the physical parameters in gauge interactions of leptons in this model.

Abstract: A signature scheme is strongly unforgeable if the adversary cannot produce a new signature even on a queried message. Some methods have been proposed to enhance some regular signatures. However, if applied to ring signatures, such methods will break the anonymity, which is the soul of ring signatures. We introduce a modified method which can achieve both strong unforgeability and anonymity in the standard model. Applying this method to Shacham-Waters scheme, we get the first ring signature with strong unforgeability in the stand model.

Abstract: Design of proxy multi-signature scheme that is efficient and provably secure in the standard model is suitable for applications. In this paper, we present a formal security model for proxy multi-signature schemes. We also firstly propose a concrete proxy multi-signature scheme based on Waters signature scheme in the standard model. The proposed scheme is proved secure under the computational Diffie-Hellman assumption.

Abstract: Using a biometric as an identity has the advantage that identities are unique if the underlying biometric is of a good quality, such as fingerprints, faces, irises. Since biometric measurements are noisy, the existing identity-based encryption systems cannot be used directly to construct IBE scheme. The error-tolerance property of Fuzzy-IBE allows for a private key to decrypt a ciphertext encrypted with a slightly different measurement of the same biometric. Based on this property, a new biometric identity based encryption scheme is proposed. Our scheme is constructed in the standard model and achieves a selective identity security. In addition, the security of our scheme is reduced to decision bilinear Diffie-Hellman(BDH) assumption instead of other strong assumptions.

Abstract: Biometric measurements are noisy and the existing techniques cannot be used directly to construct biometric-based scheme. Hence an error-tolerance property(Fuzzy) can be used to solve this problem. In this paper, a new biometric identity based signature scheme is proposed with the error-tolerance property. Our scheme is constructed in the standard model and achieves the selective identity security. In addition, the security of our scheme is reduced to a natural assumption-Computation Diffie-Hellman(CDH) assumption instead of other strong assumptions.

Abstract: Using a biometric as an identity has the advantage that identities are unique if the underlying biometric is of a good quality, such as fingerprints, faces, irises, etc. However, biometric measurements are noisy and the existing identity-based systems cannot be used directly to construct this scheme. The error-tolerance property(Fuzzy) can be used to solve this problem. Based on the error-tolerance property, a new biometric identity based signature scheme is proposed. Our scheme is constructed in the standard model and achieves a strong security-full security. In addition, the security of our scheme is reduced to a generalized assumption-Computation Diffie-Hellman(CDH) assumption instead of other strong assumptions.

Abstract: The general aim of this work is to provide a numerical tool devoted to the description of thermosetting matrix properties evolutions all over the cure. The study is related to quality of cure and residual stress state topics, especially for thick matrix. A formulation as simple as possible of some important basic couplings that occur during the cure of a class of structural thermosetting matrix is proposed. A methodology of linking thermal, diffusion and mechanical phenomena together is presented. First FEM results of cure simulation are presented and compared with experimental data of the cure.