Implement object collection(not tested) and sha256(tested)

1 files changed, 16 insertions, 0 deletions

diff --git a/src/main/java/com/keuin/kbackupfabric/util/BytesUtil.java b/src/main/java/com/keuin/kbackupfabric/util/BytesUtil.java
new file mode 100644
index 0000000..6ded7b8
--- /dev/null
+++ b/src/main/java/com/keuin/kbackupfabric/util/BytesUtil.java
@@ -0,0 +1,16 @@
+package com.keuin.kbackupfabric.util;
+
+import java.nio.charset.StandardCharsets;
+
+public class BytesUtil {
+    private static final byte[] HEX_ARRAY = "0123456789ABCDEF".getBytes(StandardCharsets.US_ASCII);
+    public static String bytesToHex(byte[] bytes) {
+        byte[] hexChars = new byte[bytes.length * 2];
+        for (int j = 0; j < bytes.length; j++) {
+            int v = bytes[j] & 0xFF;
+            hexChars[j * 2] = HEX_ARRAY[v >>> 4];
+            hexChars[j * 2 + 1] = HEX_ARRAY[v & 0x0F];
+        }
+        return new String(hexChars, StandardCharsets.UTF_8);
+    }
+}