Design and analysis of decentralized public key infrastructure with quantum-resistant signatures = 양자 내성 서명을 이용한 탈중앙화 공개키 기반 구조의 설계 및 분석

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The blockchain technique was first proposed by Satoshi Nakamoto in 2008. It is used for a distributed database technology. Public Key Infrastructure(PKI) system, which is one of the key management systems, is a centralized system. There is a possibility of a single point of failure in the currently used centralized PKI system. Classical digital signature algorithm; ECDSA has used the well-known cryptocurrencies, such as Bitcoin and Ethereum. Using the Shor's algorithm, ECDSA can be broken by the quantum computing attack. In this thesis, we propose a blockchain-based key management system using quantum-resistant cryptography, since we use a GLP digital signature scheme, which is a lattice-based mathematical problem. It is secure against the quantum adversary and ensures long-term safety. Besides, we design a decentralized blockchain structure, and it is secure for the single point of failure.
Advisors
Kim, Kwang Joresearcher김광조researcher
Description
한국과학기술원 :정보보호대학원,
Publisher
한국과학기술원
Issue Date
2018
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 정보보호대학원, 2018.8,[iv, 50 p. :]

Keywords

Post-quantum cryptography▼ablockchain▼apublic key infrastructure▼akey exchange protocol▼alattice problem; 포스트 양자 암호▼a블록체인▼a공개키 기반 구조▼a키 교환 프로토콜▼a격자 문제

URI
http://hdl.handle.net/10203/267167
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=828644&flag=dissertation
Appears in Collection
IS-Theses_Master(석사논문)
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