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How to Encrypt a Credit Card Number – A Deep Dive into the Technology That Makes it Happen 

The advent of the PCI Data Security Standards has driven many organizations to look at methods for encrypting CCNs and other sensitive data in internal databases. While this may seem like a straightforward application of encryption algorithms, encrypted data typically has a different format from the plaintext, which necessitates changes to database schemas and reworking business applications so that they are aware of the new encrypted data format.

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