New Secret Key Management Technology for Blockchains from Biometrics Fuzzy Signature
| Title | New Secret Key Management Technology for Blockchains from Biometrics Fuzzy Signature |
| Publication Type | Conference Paper |
| Year of Publication | 2020 |
| Authors | Naganuma, K., Suzuki, T., Yoshino, M., Takahashi, K., Kaga, Y., Kunihiro, N. |
| Conference Name | 2020 15th Asia Joint Conference on Information Security (AsiaJCIS) |
| Keywords | authentication, authorisation, biometric information, biometrics (access control), Biometrics authentification, biometrics fuzzy signature, biometrics-based digital signature scheme, blockchain system, blockchain technology, cryptography, decentralized payments, digital signatures, Fuzzy Cryptography, fuzzy set theory, Fuzzy signature, Human Behavior, Key Management, key management devices, Metrics, pubcrawl, public key cryptography, Resiliency, Scalability, Secret key management, secret key management issues, secret key management technology, security, Servers, user authentication |
| Abstract | Blockchain technology is attracting attention as an innovative system for decentralized payments in fields such as financial area. On the other hand, in a decentralized environment, management of a secret key used for user authentication and digital signature becomes a big issue because if a user loses his/her secret key, he/she will also lose assets on the blockchain. This paper describes the secret key management issues in blockchain systems and proposes a solution using a biometrics-based digital signature scheme. In our proposed system, a secret key to be used for digital signature is generated from the user's biometric information each time and immediately deleted from the memory after using it. Therefore, our blockchain system has the advantage that there is no need for storage for storing secret keys throughout the system. As a result, the user does not have a risk of losing the key management devices and can prevent attacks from malware that steals the secret key. |
| DOI | 10.1109/AsiaJCIS50894.2020.00020 |
| Citation Key | naganuma_new_2020 |
- Cryptography
- user authentication
- Servers
- security
- secret key management technology
- secret key management issues
- Secret key management
- public key cryptography
- pubcrawl
- key management devices
- Fuzzy signature
- fuzzy set theory
- Fuzzy Cryptography
- digital signatures
- decentralized payments
- key management
- blockchain technology
- blockchain system
- biometrics-based digital signature scheme
- biometrics fuzzy signature
- Biometrics authentification
- biometrics (access control)
- biometric information
- authorisation
- authentication
- Human behavior
- Metrics
- Resiliency
- Scalability