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All Journal Jurnal Teknik Indonesia (JU-TI)
Jesimanta, Jesimanta
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering

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Merkle-Damgård as the Foundation of Hash Cryptography: A Study of Advantages and Limitations Tri Ade Nia; Rudyanto Ompungsunggu; Arrant Ardi Sianipar; Jesimanta, Jesimanta; Yoramo Waruwu
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.v3i01.652

Abstract

The Merkle-Damgård algorithm is a key foundation in many cryptographic hash functions, including MD5, SHA-1, and SHA-256. This article discusses the working mechanism of the Merkle-Damgård structure, its advantages in maintaining data integrity, as well as the weaknesses that make it vulnerable to certain attacks. The study uses a quantitative approach through simulation and testing of Merkle-Damgård-based hash functions. This structure allows a variable-length input to be converted into a fixed-length hash output through a block-based iterative process and compression function. The results show that this algorithm successfully converts plaintext into a unique hash according to the hashing principle, as shown in both binary and ASCII representations. While effective in many digital security applications, this research highlights the importance of mitigating against potential attacks to improve the security of Merkle-Damgård-based algorithms.
Co-Authors Arrant Ardi Sianipar Rudyanto Ompungsunggu Tri Ade Nia Yoramo Waruwu