Results 211 to 220 of about 43,933 (259)

A BATCH VERIFICATION FOR MULTIPLE PROXY SIGNATURE

Parallel Processing Letters, 2011
In this article, we proposed a batch verification scheme for multiple proxy signatures to reduce the proxy signature verification time. The proposed scheme is not only efficient because it does not verify each individual proxy signature separately, but also secure because it can detect forged multiple proxy signatures without failure.
Tzeng, Shiang-Feng, Lee, Cheng-Chi, Hwang, Min-Shiang   +2 more
openaire   +2 more sources

Batch Verification of EdDSA Signatures

2014
In AfricaCrypt 2012 and ACNS 2014, several algorithms are proposed for the batch verification of ECDSA signatures. In this paper, we make a comparative study of these methods for the Edwards curve digital signature algorithm (EdDSA). We describe the adaptation of Algorithms N, N′, S2′ and SP for EdDSA signatures.
Sabyasachi Karati, Abhijit Das
openaire   +1 more source

Batch proxy quantum blind signature scheme

Science China Information Sciences, 2011
Motivated by proxy signature and blind signature for the secure communications, the batch signature is proposed to create a novel quantum cryptosystem. It is based on three-dimensional two-particle-entangled quantum system which is used to distribute the quantum keys and create strings of quantum-trits (qutrits) for messages. All of the messages, which
JinJing Shi, RongHua Shi, Ying Guo, XiaoQi Peng, Ying Tang   +4 more
openaire   +1 more source

Detecting invalid digital signatures in batches

2017 IEEE Conference on Dependable and Secure Computing, 2017
We show that invalid signatures generated by attackers may be complex, and these signatures are difficult to detect. The detecting method which is widely used now may not detect such invalid signatures with a small probability. In this paper, we use cover-free families to certainly detect them when the number of invalid signatures is small enough.
D. J. Guan, E. S. Zhuang, Yu-Shen Lin, I. C. Chung   +3 more
openaire   +1 more source

Batch Verification of ECDSA Signatures

2012
In this paper, we study several algorithms for batch verification of ECDSA signatures. The first of these algorithms is based upon the naive idea of taking square roots in the underlying field. We also propose two new and efficient algorithms which replace square-root computations by symbolic manipulations.
Sabyasachi Karati, Abhijit Das, Dipanwita Roychowdhury, Bhargav Bellur, Debojyoti Bhattacharya, Aravind Iyer   +5 more
openaire   +1 more source

Batch Verification for Certificateless Signature Schemes

2009 International Conference on Computational Intelligence and Security, 2009
Batch verification is a practical and significant technique which is very useful for greatly reducing the computational cost of verifying many signatures simultaneously. This technique is very attractive for authentications in computation-limited applications such as sensor network and banking service.
Manman Geng, Futai Zhang
openaire   +1 more source

Cryptanalysis schemes against batch verification signature

2009 Chinese Control and Decision Conference, 2009
Batch verification signature is an efficient signature to generate and verify signatures for a batch of message in a single protocol. In the paper, analyses were made on the basic principles of batch verification signature, as to the security problems of present batch verification signature schemes; we presented an improved batch verification signature
openaire   +1 more source

Batch Verifications with ID-Based Signatures

2005
An identity (ID)-based signature scheme allows any pair of users to verify each other’s signatures without exchanging public key certificates. With the advent of Bilinear maps, several ID-based signatures based on the discrete logarithm problem have been proposed. While these signatures have an advantage in the fact that the system secret can be shared
HyoJin Yoon, Jung Hee Cheon, Yongdae Kim
openaire   +1 more source

Effient Electronic Cash Using Batch Signatures

1999
All known anonymous electronic cash protocols are inefficient compared to other electronic payment protocols. This is because much of the complexity of the protocols is devoted to ensuring the anonymity of the consumer. This problem is addressed with an extension of Brands' electronic cash payment protocol using batch cryptography.
Colin Boyd, Ernest Foo, Chris Pavlovski
openaire   +1 more source

Batch Blind Signatures on Elliptic Curves

2015
Blind signature is a fundamental tool in electronic cash. In most existing blind signature schemes, both the signer and the verifier need to take expensive modular exponentiations. This situation is deteriorated in significant monetary transactions in which a large number of (multi-)exponentiations need to be calculated. This paper proposes batch blind
Yang Sun, Qianhong Wu, Bo Qin, Yujue Wang, Jianwei Liu   +4 more
openaire   +1 more source