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Joy Sofater Purba
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering

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Cryptography with the Ring-LWE (Learning With Errors) Algorithm Hesty Sitohang; Roy Untung Pratama Saing; Agnes Selaras Osabela Sarahono; Joy Sofater Purba; Petrus Tebai; Paskah Marto Hasugian
Jurnal Teknik Indonesia Vol. 3 No. 01 (2024): Jurnal Teknik Indonesia (JU-TI), June 2024
Publisher : SEAN Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/ju-ti.v3i01.653

Abstract

Ring-LWE (Ring Learning With Errors) is a post-quantum cryptography algorithm based on mathematical problems in number theory and algebra. It is an extension of LWE (Learning With Errors) first introduced by Oded Regev and is used for secure data encryption from quantum computer attacks. The process consists of three main steps: key generation, encryption, and decryption. Key generation uses random polynomials and noise to create public and private keys. While encryption produces ciphertext in the form of polynomial pairs, decryption uses the private key to return the ciphertext to the original message. To conduct the experiment, the modulus value q = 17, the modulus polynomial f(x) = x2 + 1, and the private key and random polynomial have been determined. The results of the experiment show that the message can be accurately decrypted using the private key, thus proving the success of this algorithm in maintaining data security. With its security properties that are resistant to quantum attacks, Ring-LWE is a promising alternative for future cryptography.
Co-Authors Agnes Selaras Osabela Sarahono Hesty Sitohang Paskah Marto Hasugian Petrus Tebai Roy Untung Pratama Saing