Secure and Efficient Multi-Signature Schemes for Fabric: An Enterprise Blockchain Platform

Abstract

Digital signature is a major component of transactions on Blockchain platforms, especially in enterprise Blockchain platforms, where multiple signatures from a set of peers need to be produced to endorse a transaction. However, such process is often complex and time-consuming. Multi-signature, which can improve transaction efficiency by having a set of signers cooperate to produce a joint signature, has attracted extensive attentions. In this work, we propose two multi-signature schemes, GMS and AGMS, which are proved to be more secure and efficient than state-of-the-art multi-signature schemes. Besides, we implement the proposed schemes in a real Enterprise Blockchain platform, Fabric. Experiment results show that the proposed AGMS scheme helps achieve the goal of high transaction efficiency, low storage complexity, as well as high robustness against rogue-key attacks and k-sum problem attacks.

Approaches towards Blockchain Innovation: A Survey and Future Directions

“…Once the verification is done the verified transaction is forwarded to other node or otherwise it will be discarded. In order to verify the transaction a digital signature mechanism is used [12]. Signing and verification are done using digital signatures.…”

A Quantum Blind Multi-Signature Method for the Industrial Blockchain

“…The actual business scenarios between enterprises often have a large number of trading objects. In large-scale and multi-participant business scenarios, the industrial blockchain can play a unique transformation potential of 1 + 1 > 2 for the digital upgrading of the industrial chain [16,17].…”

“…Multi-signature and multi-party transactions are also important in the decentralized industrial blockchain [30]. To improve the signature security, the authors of [16] introduced a multi-signature technology into decentralized energy trading blockchains, and the authors of [17] described a multi-signature scheme for enterprise blockchain platforms. To protect the transaction privacy in multi-party business blockchain, the authors of [31] put forward an offline arbitrated quantum blind dual-signature protocol to resist existential forgery attacks, and it could provide absolute security of quantum signature and the anonymity of the signers.…”

“…Nevertheless, research studies on anti-quantum technologies of blockchain have neglected the multi-signature transactions, which are very popular in industrial blockchain [16,17]. Both classic anti-quantum technologies [6][7][8][9][10][11][12] and quantum antiquantum technologies [13][14][15] cannot be directly used in the multi-signature transactions of blockchain to provide quantum resistance and blockchain scalability.…”

“…Both classic anti-quantum technologies [6][7][8][9][10][11][12] and quantum antiquantum technologies [13][14][15] cannot be directly used in the multi-signature transactions of blockchain to provide quantum resistance and blockchain scalability. Moreover, the existing multi-signature schemes in blockchain [16,17] cannot both provide anti-quantum security and keep the computational performance and the scalability of blockchain.…”