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+# KMAC
+
+KMAC128 and KMAC256 are message authentication codes defined by NIST in
+https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-185.pdf. The
+implementation here is based on the `crypto/sha3` package from the Go
+standard library.
+
+I do not recommend using this package. Consider using `crypto/hmac` instead.