SM2 cryptographic algorithm based on discrete logarithm problem and prospect

Bai, Lu; Yang, Guoqiang

doi:10.1109/cecnet.2012.6201878

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…SM2 Signature Algorithm. The SM2 algorithm is an asymmetric encryption algorithm introduced by the China National Cryptography Administration in 2010 [33]. It is aimed at replacing the widely employed 1024-bit RSA algorithm.…”

Section: Interplanetary File System (Ipfs) the Interplanetarymentioning

confidence: 99%

Secure Sharing of Electronic Medical Records Based on Blockchain

Luo,

Han,

et al. 2024

International Journal of Distributed Sensor Networks

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As network technology advances and more people use devices, data storage has become a significant challenge due to the explosive growth of information and the threat of data leaks. In traditional medical institutions, most medical data is stored centrally through cloud computing technology in the institution’s data center. This centralized storage method has many security risks, and once the central server is attacked, it will lead to the loss of medical data, which will lead to the leakage of patients’ private data. At the same time, electronic medical records are the most critical data in the current medical field. In the traditional centralized healthcare service system (HSS), there are data leakage problems and tampering with electronic medical records due to human factors. At the same time, each hospital is built independently, resulting in the current centralized healthcare service system having a data silo problem, making it difficult to share medical data between institutions securely. With the increase in the number of users in the system, the electronic medical record data in the system also increases gradually, resulting in the increasing overhead of decryption calculation. Therefore, this paper proposes a blockchain-based access control scheme with multiparty authorization to ensure the security of electronic medical records. The scheme uses an SM encryption algorithm to encrypt the medical data in the system. It adds the patient’s signature to ensure the confidentiality and security of the data, and the encrypted electronic medical records (EMRs) are stored in the InterPlanetary File System (IPFS) to realize the distributed storage of EMR. In addition, role-based multiauthorization access control is implemented through smart contract-based to ensure the security of EMR. We have analyzed the security of this paper’s solution and compared its performance with the existing schemes based on other cryptographic algorithms. The experimental results show that the proposed solution significantly improves the secure sharing of EMR and provides system performance.

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Section: Interplanetary File System (Ipfs) the Interplanetarymentioning

confidence: 99%

Secure Sharing of Electronic Medical Records Based on Blockchain

Luo,

Han,

et al. 2024

International Journal of Distributed Sensor Networks

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“…Bai et al [12] did a theoretical comparative study of SM2 and the international standard ECC algorithm (which seems to refer to ECDSA, although this is not clearly mentioned), with regards to efficiency and security. They concluded that the SM2 algorithm is better than the international standard ECC algorithm, because the SM2 signature covers ECC parameters that can be used to verify the correctness of the plaintext.…”

Section: Related Workmentioning

confidence: 99%

On the Design and Performance of Chinese OSCCA-approved Cryptographic Algorithms

Martinkauppi

Qiu-ping

Ilie

2020

2020 13th International Conference on Communications (COMM)

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SM2, SM3, and SM4 are cryptographic standards authorized to be used in China. To comply with Chinese cryptography laws, standard cryptographic algorithms in products targeting the Chinese market may need to be replaced with the algorithms mentioned above. It is important to know beforehand if the replaced algorithms impact performance. Bad performance may degrade user experience and increase future system costs.We present a performance study of the standard cryptographic algorithms (RSA, ECDSA, SHA-256, and AES-128) and corresponding Chinese cryptographic algorithms.Our results indicate that the digital signature algorithms SM2 and ECDSA have similar design and also similar performance. SM2 and RSA have fundamentally different designs. SM2 performs better than RSA when generating keys and signatures. Hash algorithms SM3 and SHA-256 have many design similarities, but SHA-256 performs slightly better than SM3. AES-128 and SM4 share some similarities in the design. In the controlled experiment, AES-128 outperforms SM4 with a significant margin.

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Dynamic Encryption of Power Internet of Things Data Based on National Secret Algorithm

Zhou

Qian

et al. 2022

Advances in Artificial Intelligence and Security

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SM2 cryptographic algorithm based on discrete logarithm problem and prospect

Cited by 8 publications

References 5 publications

Secure Sharing of Electronic Medical Records Based on Blockchain

Secure Sharing of Electronic Medical Records Based on Blockchain

On the Design and Performance of Chinese OSCCA-approved Cryptographic Algorithms

Dynamic Encryption of Power Internet of Things Data Based on National Secret Algorithm

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