PHP如何实现JAVA中的AES解密以及MD5加密

[machunjie2003]

//java 加密
	public static String encryptAES(String content, String key) {
		try {
			KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
			//需手动指定 SecureRandom 随机数生成规则，否则在Linux上可能生成随机key
			SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
			secureRandom.setSeed(key.getBytes());
			keyGenerator.init(128, secureRandom);
			SecretKey secretKey = keyGenerator.generateKey();
			Cipher cipher = Cipher.getInstance("AES");
			cipher.init(Cipher.ENCRYPT_MODE, secretKey);
			byte[] encrypted = cipher.doFinal(content.getBytes("utf-8"));
			return Base64.encodeBase64String(encrypted);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
	//java 解密
	public static String decryptAES(String content, String key) {
		 try {
				 KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
				 SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
				 secureRandom.setSeed(key.getBytes());
				 keyGenerator.init(128, secureRandom);
				 SecretKey secretKey = keyGenerator.generateKey();
				 Cipher cipher = Cipher.getInstance("AES");
				 cipher.init(Cipher.DECRYPT_MODE, secretKey);
				 byte[] encrypted = cipher.doFinal(Base64.decodeBase64(content));
				 return new String(encrypted, "utf-8");
			} catch (Exception e) {
				e.printStackTrace();
			}
			return null;
		}
	//MD5 加密
	public static String md5(String content) {
		try {
			return Base64.encodeBase64String(MessageDigest.getInstance("MD5").digest(content.getBytes("utf-8")));
		} catch (Exception e) {
			e.printStackTrace();
		}
			return null;
	}

以上是java代码的加密解密，现在我想将它翻译成PHP加密解密，加密目前已经能够匹配上，解密一直不对，还有MD5的加密也匹配不上。哪位大神帮忙解决一下？！

[machunjie2003]

实在抱歉，不是不给分，是没分了……