C# JAVA 通用 AES

//程序集 IKVM.OpenJDK.Security
using java.security;
using javax.crypto;

        /// <summary>
        /// AES解密
        /// </summary>
        /// <param name="content"></param>
        /// <param name="key"></param>
        /// <returns></returns>
        public static string JavaAESDecrypt(string content, string key)
        {
            KeyGenerator kgen = KeyGenerator.getInstance("AES");
            SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
            secureRandom.setSeed(Encoding.ASCII.GetBytes(key));
            kgen.init(128, secureRandom);
            SecretKey secretKey = kgen.generateKey();
            byte[] enCodeFormat = secretKey.getEncoded();

            using (AesCryptoServiceProvider aesProvider = new AesCryptoServiceProvider())
            {
                aesProvider.Key = enCodeFormat;
                aesProvider.Mode = CipherMode.ECB;
                aesProvider.Padding = PaddingMode.PKCS7;
                using (ICryptoTransform cryptoTransform = aesProvider.CreateDecryptor())
                {
                    byte[] inputBuffers = Convert.FromBase64String(content);
                    byte[] results = cryptoTransform.TransformFinalBlock(inputBuffers, 0, inputBuffers.Length);
                    aesProvider.Clear();
                    return Encoding.UTF8.GetString(results);
                }
            }
        }

        /// <summary>
        /// AES加密
        /// </summary>
        /// <param name="content"></param>
        /// <param name="key"></param>
        /// <returns></returns>
        public static string JavaAESEncrypt(string content, string key)
        {
            KeyGenerator kgen = KeyGenerator.getInstance("AES");
            SecureRandom secureRandom = SecureRandom.getInstance("SHA1PRNG");
            secureRandom.setSeed(Encoding.ASCII.GetBytes(key));
            kgen.init(128, secureRandom);
            SecretKey secretKey = kgen.generateKey();
            byte[] enCodeFormat = secretKey.getEncoded();

            using (AesCryptoServiceProvider aesProvider = new AesCryptoServiceProvider())
            {
                aesProvider.Key = enCodeFormat;
                aesProvider.Mode = CipherMode.ECB;
                aesProvider.Padding = PaddingMode.PKCS7;
                using (ICryptoTransform cryptoTransform = aesProvider.CreateEncryptor())
                {
                    byte[] inputBuffers = Encoding.UTF8.GetBytes(content);
                    byte[] results = cryptoTransform.TransformFinalBlock(inputBuffers, 0, inputBuffers.Length);
                    aesProvider.Clear();
                    return Convert.ToBase64String(results);
                }
            }
        }

JAVA 如下：

import org.apache.commons.codec.binary.Base64;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;

/**
 * @author dingyingsi
 */
public class DigestUtils {

    private static final String KEY_ALGORITHM = "AES";
    private static final String DEFAULT_CIPHER_ALGORITHM = "AES/ECB/PKCS5Padding";

    /**
     * AES 加密操作
     *
     * @param content  待加密内容
     * @param password 加密密码
     * @return 返回Base64转码后的加密数据
     */
    public static String encrypt(String content, String password) {
        try {
            Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);// 创建密码器
            byte[] byteContent = content.getBytes("utf-8");
            cipher.init(Cipher.ENCRYPT_MODE, getSecretKey(password));// 初始化为加密模式的密码器
            byte[] result = cipher.doFinal(byteContent);// 加密
            return Base64.encodeBase64String(result);//通过Base64转码返回
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }

    /**
     * AES 解密操作
     *
     * @param content
     * @param password
     * @return
     */
    public static String decrypt(String content, String password) {
        try {

            Cipher cipher = Cipher.getInstance(DEFAULT_CIPHER_ALGORITHM);

            cipher.init(Cipher.DECRYPT_MODE, getSecretKey(password));

            byte[] result = cipher.doFinal(Base64.decodeBase64(content));
            return new String(result, "utf-8");
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        return null;
    }

    private static SecretKeySpec getSecretKey(final String password) {
        KeyGenerator kg = null;
        try {
            kg = KeyGenerator.getInstance(KEY_ALGORITHM);
            SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
            random.setSeed(password.getBytes());
            kg.init(128, random);//AES 要求密钥长度为 128
            //生成一个密钥
            SecretKey secretKey = kg.generateKey();
            return new SecretKeySpec(secretKey.getEncoded(), KEY_ALGORITHM);
        } catch (NoSuchAlgorithmException ex) {
            ex.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) {
        //加密 将上传文件名加密
        String content = "test 加密数据";
        System.out.println(content);
        String key= "key_string";
        String code = encrypt(content, key);
        System.out.println(code);

        String decryptResult = decrypt(code, key);
        System.out.println(decryptResult);
    }
}