rewriting in go

tools/tools.go

@@ -0,0 +1,23 @@
+package tools
+
+import (
+	"encoding/hex"
+	"fmt"
+	"hash"
+	"io"
+
+	"github.com/sigurn/crc8"
+)
+
+func Hash(h hash.Hash, r io.Reader) (string, error) {
+	if _, err := io.Copy(h, r); err != nil {
+		return "", fmt.Errorf("failed to read string: %w", err)
+	}
+	return hex.EncodeToString(h.Sum(nil)), nil
+}
+
+func CRC8(s []byte, param crc8.Params) string {
+	table := crc8.MakeTable(param)
+	crc := crc8.Checksum(s, table)
+	return fmt.Sprintf("%X", crc)
+}