initial import

core/hash/hash.go

@@ -0,0 +1,22 @@
+package hash
+
+import (
+	"crypto/md5"
+	"fmt"
+
+	"github.com/spaolacci/murmur3"
+)
+
+func Hash(data []byte) uint64 {
+	return murmur3.Sum64(data)
+}
+
+func Md5(data []byte) []byte {
+	digest := md5.New()
+	digest.Write(data)
+	return digest.Sum(nil)
+}
+
+func Md5Hex(data []byte) string {
+	return fmt.Sprintf("%x", Md5(data))
+}