Photo by CardMapr on Unsplash

Hiding Encryption and Credit Card numbers In Plaintext With Format Preserving Encryption

We can normally spot when something is encrypted, as it either looks like Base64 or hex characters. But, why can’t we convert our ciphertext into a form that looks a bit more like the characters we would expect to see? And, could we obfuscate our credit card details into a form that still looks like a credit card, but which has actually…