merge tx signer

[bytom/bytom-java-sdk.git] / tx-signer / src / main / java / io / bytom / util / PathUtil.java

diff --git a/tx-signer/src/main/java/io/bytom/util/PathUtil.java b/tx-signer/src/main/java/io/bytom/util/PathUtil.java
new file mode 100755 (executable)
index 0000000..5a9b1e7
--- /dev/null
+++ b/tx-signer/src/main/java/io/bytom/util/PathUtil.java
@@ -0,0 +1,54 @@
+package io.bytom.util;\r
+\r
+import org.bouncycastle.util.encoders.Hex;\r
+\r
+import java.nio.ByteBuffer;\r
+import java.nio.ByteOrder;\r
+\r
+public class PathUtil {\r
+    private static String intToPath(int index) {\r
+        byte[] result = new byte[4];\r
+        result[3] = (byte) (index >> 24 & 0xff);\r
+        result[2] = (byte) (index >> 16 & 0xff);\r
+        result[1] = (byte) (index >> 8 & 0xff);\r
+        result[0] = (byte) (index >> 0 & 0xff);\r
+        return Hex.toHexString(result);\r
+    }\r
+\r
+\r
+//  paths = {\r
+////            "2c000000",\r
+////            "99000000",\r
+////            "01000000",  accountIndex\r
+////            "00000000",  change\r
+////            "01000000"   controlProgramIndex\r
+////    }\r
+\r
+    public static byte[][] getBip44Path(int accountIndex, boolean change, int programIndex) {\r
+\r
+        String accountIndexStr = intToPath(accountIndex);\r
+        String changeStr = "00000000";\r
+        String programIndexStr = intToPath(programIndex);\r
+        if (change) {\r
+            changeStr = "01000000";\r
+        }\r
+        byte[][] paths = new byte[][]{\r
+                Hex.decode("2c000000"),\r
+                Hex.decode("99000000"),\r
+                Hex.decode(accountIndexStr),\r
+                Hex.decode(changeStr),\r
+                Hex.decode(programIndexStr),\r
+        };\r
+        return paths;\r
+    }\r
+\r
+    public static byte[][] getBip32Path(int accountIndex) {\r
+        byte[] signerPath = new byte[9];\r
+        byte[] path = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN).putInt(accountIndex).array();\r
+        System.arraycopy(path, 0, signerPath, 1, 8);\r
+        byte[][] paths = new byte[][]{\r
+                signerPath\r
+        };\r
+        return paths;\r
+    }\r
+}\r