Introduction
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Security measures is vital to any payment system. A lot of organization has invested hefty resources to protect sensitive data about the user and the transaction from attackers.

Normally, the payment system are using 3 DES encryption technique. But, the AES (Advance Encryption Standard) has been preferred to be implement within the system because of:

1. 3DES mainly being used in payment system, but the attackers can be obtained the data using BruteForce attack. Therefore, we can imply that this technique is no longer relevant to be apply for QuidLink, as we need high security standard to gain customer’s trust and confidence.
2. AES provides better security, much larger block size and longer key length (256 bits). Thus, it will be more difficult to decipher, and took longer time to crack.
3. Faster and more efficient than 3 DES. Suitable to be used on mobile and web application. Without taking much time, making process to be much quicker than using 3DES.

Conclusion
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After reviewing the options, and referred to paper written below, we propose QuidLink to apply AES encryption to improve data storage within the system, intrusion from attackers and gain confidence of potential user.

Source :

New Comparative Study Between DES, 3DES and AES within Nine Factors
http://arxiv.org/ftp/arxiv/papers/1003/1003.4085.pdf