Improving Bio-Cryptography Authentication Protocol
IRFAN FADIL

Informasi Umum

Kode

16.05.017

Klasifikasi

005.8 - Data Security

Jenis

Karya Ilmiah - Thesis (S2) - Reference

Subjek

Security Exchange

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248 kali

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Abstraksi

User authentication is a method for authenticating a user. It is conducted by another party that communicate with the user. Usually, the authentication is done using veri- cation of username, password, and biometric. There was a method proposed by Seung .et.al where the user authentication process was done using biometric (ngerprint) and password. However, the authentication can be succeeded by authenticating the user based on the password or the ngerprint. Thus, a fake user who knows the password of the legitimate user may be authenticate as the legitimate user without examining the nger- print. Besides, the time complexity of the previous method for authentication process is high. Furthermore, there is opportunity of fake authenticator device for obtaining the ngerprint and password of the legitimate user because there is no authentication process for examining whether the device is the legitimate one. This problem can be solved using Elliptic Curve and Keccak Hash Function. The Elliptic Curve is used for conducting device authentication for examining whether the device is a legitimate one, while Keccak Hash Function is used for improving the user authentication process, such that the authentica- tion process can be succeeded only if both password and ngerprint is authenticated. The result of experiment shows that the user authentication processing time decreased 35.06 ms - 41.6 ms compared with the method proposed by Seung .et.al, while the probability of obtaining the ngerprint and password using the proposed method is less than the previous method of 2????^-57. It is proven that the proposed method is strong against fake device attack for stealing the biometric information and password.

Keywords: Authentication, Elliptic Curve, Keccak Hash Function.

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