Can you help me to look at the how to change this java encrypt code to go?

[msean]

Recently, I have to rewrite a project from java to go(I have no java experience).By coincidence,it has a encrypt/decrypt module troubled to me.I have read your code detailedly.But some troubles there. The java code：

import java.security.SecureRandom;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;

import crypto.ByteUtils;
import sun.misc.BASE64Encoder;

public class DES {
	private DESKeySpec desKeySpec;
	private IvParameterSpec ivSpec;
	private  String Key = "11111111";
	private final static String DES = "DES";
	
	public DES() {
		try {
			this.desKeySpec = new DESKeySpec(this.Key.getBytes());
			this.ivSpec = new IvParameterSpec(this.Key.getBytes());
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	
	private static byte[] encrypt(byte[] data, byte[] key)
	{
		byte[] result = data;
		SecureRandom sr = new SecureRandom();
		try
		{
			DESKeySpec dks = new DESKeySpec(key);
			SecretKeyFactory keyFactory = SecretKeyFactory.getInstance(DES);
			SecretKey securekey = keyFactory.generateSecret(dks);
			Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding");
			cipher.init(Cipher.ENCRYPT_MODE, securekey, sr);
			result = cipher.doFinal(data);
		} catch (Exception e)
		{
			e.printStackTrace();	
		}
		System.out.println(result);
		return result;
	}
	
	
	public byte[] decrypt(byte[] crypted) {
		try {
			SecretKeyFactory factory = SecretKeyFactory.getInstance("DES");
			SecretKey key = factory.generateSecret(this.desKeySpec);
			Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
			cipher.init(Cipher.DECRYPT_MODE, key, this.ivSpec);
			return cipher.doFinal(crypted);
		}  catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
	
	public static void main(String[] args) throws Exception {
		DES des = new DES();
		String data = "hello world !";
		byte[] crypted = des.encrypt(data.getBytes(),des.Key.getBytes());
		BASE64Encoder encoder = new BASE64Encoder();
		System.out.println(encoder.encode(crypted));
	}
}

As I see that the key should be 8 bytes.but It can work normally and the Iv calculate strangely. Thank you If you give me a hand ...

[polaris1119]

public DESKeySpec(byte[] key)
           throws InvalidKeyException
Creates a DESKeySpec object using the first 8 bytes in key as the key material for the DES key.
The bytes that constitute the DES key are those between key[0] and key[7] inclusive.

These is declared DESKeySpec. The key is not 8 bytes in your code, but DESKeySpec only used the first 8 bytes in the key.