Abstract
In a cloud scenario, biggest concern is around security of the data. “Both data in transit and at rest must be secure” is a primary goal of any organization. Data in transit can be made secure using TLS level security like SSL certificates. But data at rest is not quite secure, as database servers in public cloud domain are more prone to vulnerabilities. Not all cloud providers give out of box encryption with their offerings. Also implementing traditional encryption techniques will cause lot of changes in application as well as at database level. This paper provides efficient approach to encrypt data using Format Preserving Encryption technique. FPE focuses mainly on encrypting data without changing format so that it’s easy to develop and migrate legacy application to cloud. It is capable of performing format preserving encryption on numeric, string and the combination of both. This literature states various features and advantages of same.
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