In this paper we present a user efficient fair blind signature scheme where linkage of each signature can be recovered in case of illegal usage. A user has to compute only several modular additions and multiplications in our signing protocol, and hence it is very suitable for mobile commerce paradigm where customers use hand-held devices with limited computation power.

Round-optimal blind signatures are notoriously hard to construct in the standard model, especially in the malicious-signer model, where blindness must hold under adversarially chosen keys. This is substantiated by several impossibility results. The only construction that can be termed theoretically efficient, by Garg and Gupta (Eurocrypt’14), requires complexity leveraging, inducing an exponent...

Blind signatures provide a mechanism for achieving privacy and anonymity whereby a user gets the signer to sign a message of his choice without the signer learning the content of the message, nor linking message/signature request pairs when he sees the final signature. In this paper, we construct a blind signature that requires minimal interaction (two moves) between the user and the signer, an...

The proxy blind signature scheme allows the designated proxy signer using the proxy secret key to generate a blind signature on behalf of the original signer. Tan et al. presented the DLP-based and ECDLP based blind signature schemes. Awasthi and Lal proposed a improved DLP-based scheme later. Recently, Sun et al. presented linkability attack on Tan et al. s and Awasthi–Lal s proxy blind signat...

This paper considers the idea that other schemes besides asymmetric encryption schemes can benefit from a formalisation of the principles of hybrid cryptography. The main focus of research in hybrid cryptography has been in producing efficient asymmetric encryption schemes. Not only have several schemes been proposed, but also a generic method of constructing hybrid encryption schemes from lowe...

Content Centric Networking (CCN) [1] is a new network paradigm designed to satisfy user needs considering the growth of data demand. Named Data Networking (NDN) [2] is a research project that is developing the future Internet architecture using the principles behind CCN. In this novel architecture, the contents are addressed by their name and not by their location. Thus, the attention is shifte...

Digital signature scheme is a method for signing an electronic message. As such, a signed message can be transmitted over a computer network in an authenticated manner. This paper introduces two identity based (id-based) digital signature schemes. The first one, is a signature scheme and the second its extension to a proxy signature scheme in which the original signer delegates his signing righ...

RSA is a key cryptography technique and provides various interfaces for the applied software in real-life scenarios. Although some good results were achieved in speeding up the computation of pairing function in recent years, the computation cost of the pairings is much higher than that of the exponentiation in a RSA group. So it is still interesting to design efficient cryptosystems based on R...

The only known construction of identity-based blind signature schemes that are secure in the standard model is based on the generic approach of attaching certificates to ordinary (i.e. non-identity-based) blind signature schemes, and thus the identity-based blind signature schemes constructed using this method are somewhat inefficient and have long signature size. In this paper, we present the ...