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Secure e-Commerce Transactions using ElGamal Elliptic Curve Cryptosystem

Journal: International Journal of Science and Research (IJSR) (Vol.9, No. 10)

Publication Date:

Authors : ;

Page : 12-16

Keywords : e-commerce; secured electronic transaction(SET); Elliptic Curve Cryptography (ECC); ElGamal; Diffie Hellman Key Exchange;

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Security of e-commerce transactions is a pre-requisite requirement nowadays as it is being used in almost every day to day lives. Large amounts of information are exchanged between users every time we do some online transaction. Active attacks like eavesdropping / replay attacks are threat to customer's money. Eavesdropping attack is the unauthorized interception of a private communication, such as phone call or message. Hence it is very much important that any good electronic commerce system should guarantee some basic securities such as authenticity, data protection, privacy and integrity. Elliptic curve cryptography (ECC) compared to RSA provides same cryptographic strength but with much shorter key size and also provides moderately fast encryption and decryption. Another issue with e-commerce transactions today is whether the two parties are authenticated. This becomes a weak link and leads to fraud and cyber thefts. To remove the above problem, we combine ECC with ElGamal encryption scheme. In this project, we suggest enhanced security model of cryptographic system using Elgamal encryption scheme with ECC. This mode can be used as a Secured electronic transaction set (SET). It also gives better security with lesser key size.

Last modified: 2021-06-28 17:13:38