alt Hacker NewsXOR encryption is cheap and effective. Make the key the static string "IfYouCanReadThisYourCodeWillBreak" or something akin to that. That way, the key itself will serve as a final warning when (not if) the key gets cracked.
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maxbond • today at 2:18 AM
A cryptographer may quibble and call that an encoding but I agree.
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Any symmetric encryption is ~free compared to the cost of a network request or db query.
In this particular instance, Speck would be ideal since it supports a 96-bit block size https://en.wikipedia.org/wiki/Speck_(cipher)