Elliptic curve cryptography, zero-knowledge proof, and Lamport's hash chain in a distributed authentication system
Chang, Simon Yi-Fan
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This paper proposes a novel distributed authentication system that uses robust alternatives in cryptographic algorithms to grant a third-party access to personal data without compromising a user's credentials. The paper examines briefly the concept of distributed authentication systems, and discusses how elliptic curve cryptography and Lamport's hash chain can operate in a zero-knowledge proof to establish and manage trust. The paper also discusses how this design avoids some of the most common flaws in distributed authentication systems. Finally, based on results from tests conducted with included source codes, the paper argues that increasing number of rounds of zero-knowledge proof yields substantially faster performance than increasing the modulus for elliptic curve calculations while maintaining comparable levels of security.
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