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I'm a Software Engineer who works at Google. However, the opinions shared here are my own and do not necessarily represent those of my corporation.
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|location||Seattle, WA||seen||May 14 '12 at 22:22|
Is my HMAC secure if I have a complete series of HMAC'd prefix strings
Yes, sorry. I was indeed assuming a particular secret key, and I misused "ciphertext." The actual value would be encrypted on its own. The HMACs would be for prefix lookup. Sorry for the confusion!