7. Acknowledgments

Pau-Chen Cheng, Jeff Kraemer, and Michael Oehler, have provided useful comments on early drafts, and ran the first interoperability tests of this specification. Jeff and Pau-Chen kindly provided the sample code and test vectors that appear in the appendix. Burt Kaliski, Bart Preneel, Matt Robshaw, Adi Shamir, and Paul van Oorschot have provided useful comments and suggestions during the investigation of the HMAC construction.