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ELLIPTIC CURVE CRYPTOGRAPHY FOR EAVESDROPPING PROTECTION

 

TITLE ELLIPTIC CURVE CRYPTOGRAPHY FOR EAVESDROPPING PROTECTION
AUTHOR THIDARAT HATTHABUNJONG
DEGREE MASTER OF SCIENCE PROGRAMME IN COMPUTER SCIENCE
FACULTY FACULTY OF SCIENCE
ADVISOR SUPHACHAI TANGWONGSAN
CO-ADVISOR VASAKA VISOOTTIVISETH
SONGSRI TANGSRIPAIROJ
 

ABSTRACT

The purpose of this study was to develop a security model to prevent eavesdropping on VoIP networks that is efficient and effective. Our approach was to correct the weak points of previous research work which exchanged private keys between conversation partners and encrypted data with partial encryption patterns.

The scheme of correction was divided into two parts as follows:

First, the key exchange between conversation partners with the symmetric-key model using the Elliptic Curve Diffie-Hellman key exchange replaced the simple Diffie-Hellman key exchange.

Second, the process of data encryption which makes use of Elliptic Curve Cryptography (ECC) with partial encryption m:n model also enhanced the efficiency of eavesdropping protection.

A system prototype was built according to these specifications and a series of experiments were performed. The results showed that the new model performed better in terms of eavesdropping protection and the efficiency of implementation.


KEYWORD SECURITY MODEL / VOICE EAVESDROPPING PROTECTION / VOIP NETWORK

 

 

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