我刚开始学习golang，以下是java实现的aes加密和解密，如何使用Golang来实现？

public static byte[] encrypt(String clear, String raw) { 
    try {
        KeyGenerator kgen = KeyGenerator.getInstance("AES"); 
        SecureRandom sr = SecureRandom.getInstance("SHA1PRNG"); sr.setSeed(raw.getBytes());
        kgen.init(128, sr);
        SecretKey skey = kgen.generateKey(); 

        //System.out.println(Base64.encodeBase64(skey.getEncoded())); 
        SecretKeySpec skeySpec = new SecretKeySpec(skey.getEncoded(), "AES"); Cipher cipher = Cipher.getInstance("AES");
        //System.out.println();
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
        return cipher.doFinal(clear.getBytes());
    } catch (Exception e) {
        e.printStackTrace(); 
    }
    return null; 
}

public static byte[] decrypt(byte[] encrypted, String raw) {
    try {
    KeyGenerator kgen = KeyGenerator.getInstance("AES"); 
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG"); 
    sr.setSeed(raw.getBytes());
    kgen.init(128, sr);
    SecretKey skey = kgen.generateKey();
    SecretKeySpec skeySpec = new SecretKeySpec(skey.getEncoded(), "AES");
    Cipher cipher = Cipher.getInstance("AES"); 
    cipher.init(Cipher.DECRYPT_MODE, skeySpec);
    return cipher.doFinal(encrypted);
    } catch (Exception e) {
    e.printStackTrace(); }
    return null; 
}
go