An ECC-Based Blind Signcryption Scheme for Multiple Digital Documents

Abstract

The popularity of the Internet has comprehensively altered the traditional way of communication and interaction patterns, such as e-contract negotiations, e-payment services, or digital credential processes. In the field of e-form systems, a number of studies investigate the ability of the blind signature to fulfill the basic properties of blindness and untraceability. However, most literatures exploring the blind signature mechanisms only address research and technology pertaining to single blind signature issues. Further, most of the topics only deal with signing rather than encryption. Thus, we propose a new blind signature scheme for multiple digital documents based on elliptic curve cryptography (ECC). Our scheme incorporates the design of signcryption paradigm into the blind signature scheme to strengthen high levels of security. This innovative method also enhances computational efficiency during processing multiple electronic documents since the ECC provides a shorter key length and higher processing speed than other public-key cryptosystems on equivalent secrecy. The analysis results show that the present scheme achieves better performance at low communication overheads as well as with higher level of security. By helping the design of the intrinsic properties, the proposed cryptosystem can be applied to many areas to protect sensitive data in ubiquitous computing environments.

New Proxy Blind Signcryption Scheme for Secure Multiple Digital Messages Transmission Based on Elliptic Curve Cryptography

“…The main contribution of our work not only significantly strengthens the principles of provable security which we give the results of security analysis in Section 4, as pointed out by [21] [27] and [28], including unforgeability, non-repudiation and unlinkability, but also innovatively offers a model for proxy-signature-related or blind-signature-related topics on processing multiple digital messages, as exemplified by [37] [38] and [39]; likewise we provide a high-performance solution through a vast amount of digital messages in terms of computational efficiency in Section 5. Another contribution of this study is to show that a direct implementation of this scheme describes a process where ciphertext from one block encryption step gets intermixed with the shifted data point from the next encryption step until the complete sequence of encoded messages is synthesized as an avalanche effect which we present in Section 3.…”

“…Additionally, the proposed scheme maintains all message blocks to produce the avalanche effect as more and more blocks connect to the subsequent segment, and this security measure is able to prevent information leakage from occurring in each time period. It is worthwhile pointing out that a newly unveiled multiple-document cryptosystem from Tsai and Su's recent works [38] [39] in 2015 and 2017, respectively. Of these two signcryption techniques, the former presents a different type of a threshold signcryption protocol by assigning a group of signatures to share a secret link for multiple documents and their study handles a large number of digital documents via a group of participants splitting a secret and each of member is allocated a share of the secret, but the latter introduces an alternative paradigm for a blind signcryption model (viz.…”

A Compressive Sensing Based Image Encryption and Compression Algorithm With Identity Authentication and Blind Signcryption

“…ECC not only can be used for encryption [6][7][8], but also can be used for authentication [9,10] and key management [11]. Based on ECC, many signcrytion schemes have been proposed [12][13][14][15], which achieve signature and encryption simultaneously. Meanwhile, when facing illegal data usage, none of copyright protection, access control and encryption are enough to ensure information security, so it is essential to turn to the Secret Sharing scheme(SS) [16], which can prevent information from being too centralized and ensure information with more security.…”

Certificateless Blind Signcryption With Low Complexity

“…In 2014, Ullah et al [13] proposed blind signcryption scheme based elliptic curve. In 2017, Su and Tsai proposed ECC-based blind signcryption scheme for multiple digital documents [14] and new proxy blind signcryption scheme based on ECC for secure multiple digital message transmission [15]. In 2018, paring-free identity-based blind signature scheme with message recovery [16] was proposed.…”