An Efficient Blind Signature Scheme Based on SM2 Signature Algorithm

Zhang, Yudi; He, Debiao; Zhang, Fangguo; Huang, Xinyi; Li, Dawei

doi:10.1007/978-3-030-71852-7_25

Cited by 7 publications

(7 citation statements)

References 26 publications

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“…The anonymity is improved compared to SM9. References [25], [28], [29] introduced blind signatures, ring signatures, and two-party signatures on the basis of SM9. The development process and principle of digital signatures are easy to understand.…”

Section: Performance Comparisonmentioning

confidence: 99%

“…Without loss of generality, we can equate unforgeability with non-repudiation, and strong unforgeability means strong non-repudiation. Regarding the security of the scheme, references [4], [23], [25], [28], [29] is unable to resist malicious KGC attacks, this scheme adopts a multi-KGC method to achieve higher security. At the same time, due to the threshold of this scheme, this scheme has the performance of resisting malicious user attacks and has stronger security.…”

Section: Performance Comparisonmentioning

confidence: 99%

“…Furthermore, directly using the SM9 algorithm as the underlying cryptographic support of its own application to construct research schemes has also become a current research hotspot. In 2018, Zhang et al [25] proposed a blind signature scheme based on SM9 algorithm to realize the concealment protection of signed message data. In 2019, Shi et al [26] used SM9 as the underlying encryption and decryption technology to propose an attribute-based encryption scheme, and realize more flexible and fine-grained access control to sensitive data.…”

Section: Introductionmentioning

confidence: 99%

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Secure Threshold Ring Signature Based on SM9

et al. 2021

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Compared with traditional cryptographic systems, cryptographic systems based on SM9 identification cryptographic algorithms have the advantages of easy management and low complexity. With the widespread use and development of SM9 in various fields, security issues have become particularly important. So how to improve algorithm security has become the current research focus. In response to this problem, this paper proposed a threshold ring signature scheme based on the SM9 identification algorithm. First, the scheme improved the SM9 identification cryptographic algorithm. Also, a multi-KGC system is used to improve key security while preventing malicious KGC attacks. Second, the combination of SM9 and threshold ring signature increases the threshold of the algorithm and prevents malicious users from attacking. Security analyses have proved that under the assumptions of the random oracle model and the difficult problems of DLP and BPIP, the proposed scheme has the characteristics of unforgeability, stronger anonymity, and non-repudiation. Besides, the proposed scheme has great advantages in security while comparing with other existing schemes.INDEX TERMS digital signatures, provably safe, random oracle model, SM9 identity-based cryptography, threshold ring signature.

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Section: Performance Comparisonmentioning

confidence: 99%

Section: Performance Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Secure Threshold Ring Signature Based on SM9

et al. 2021

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“…proposed a solution to record and store data using blockchain and combined with the SM3 algorithm to improve the efficiency of executing shared ledger. Zhang and Peng (2019) proposed a blind signature method based on the SM9 algorithm, which guarantees that the information transmitted does not get tampered and realises the hidden protection of shared data.…”

Section: Introductionmentioning

confidence: 99%

Design and implementation of a cloud encryption transmission scheme supporting integrity verification

Cai¹,

Wu²,

Zhang³

et al. 2021

IJES

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In the cloud storage environment, the integrity of private data is one of the most concerned issues for users, which has become the focus of cloud storage research. For this kind of problem, the existing schemes usually sacrifice the communication efficiency of users for higher security, which often causes a lot of computing overhead. Therefore, the purpose of this paper is to achieve the coexistence of safety and efficiency, and adopts the ideas of Chinese commercial encryption algorithms SM2 and SM3, proposes a cloud encryption transmission scheme that supports integrity verification, and gives a security analysis under the assumption of discrete logarithm problem on elliptic curve and Diffie-Hellman problem. Finally, the actual test and comparative experiment results show that our scheme can realise the cloud data transmission encryption and cloud storage integrity verification functions at the same time without affecting the performance of the cloud server. Moreover, it can effectively resist all kinds of common attacks, reduce the storage and computing burden of cloud users, and has certain guiding significance for the research of user privacy protection in the cloud environment.

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“…Cheng [10] 分析了 SM9 密码算法的安全性, 并基于 Gap 类困难假设给出 SM9 密钥交换协议、密钥封装机制和公钥加密算法的安全性证明. 文献 [11] 结合盲签名技术, 首先利用 SM3 杂凑算法对消息进行盲化处理, 并提出基于 SM9 的盲签名方案. 文献 [12] 采用构建预计算矩阵的方法, 提高了 SM9 数字签名中签名和验证算法的计算效率.…”

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