aes加密和解密_ecc加密算法原理

aes 128、192、256位，cbc、cfb、ecb、ofb、pcbc在线加密解密

AES加解密总共有以下这些

算法/模式/填充                 字节加密后数据长度       不满16字节加密后长度  
AES/CBC/NoPadding                   16                          不支持  
AES/CBC/PKCS5Padding                32                          16  
AES/CBC/ISO10126Padding             32                          16  
AES/CFB/NoPadding                   16                          原始数据长度  
AES/CFB/PKCS5Padding                32                          16  
AES/CFB/ISO10126Padding             32                          16  
AES/ECB/NoPadding                   16                          不支持  
AES/ECB/PKCS5Padding                32                          16  
AES/ECB/ISO10126Padding             32                          16  
AES/OFB/NoPadding                   16                          原始数据长度  
AES/OFB/PKCS5Padding                32                          16  
AES/OFB/ISO10126Padding             32                          16  
AES/PCBC/NoPadding                  16                          不支持  
AES/PCBC/PKCS5Padding               32                          16  
AES/PCBC/ISO10126Padding            32                          16  

一、不带模式和填充来获取AES算法的时候，其默认使用AES/ECB/PKCS5Padding（输入可以不是16字节，也不需要填充向量）

Cipher cipher = Cipher.getInstance("AES");

下面是 AES/ECB/PKCS5Padding 128位、192位、256加解密 完整代码

        String content = "在线助手";
        // 生成密钥需要的密码值
        String key = "www.it399.com";
        /** * AES加密方式一:AES不指定模式和填充，默认为 ECB/PKCS5Padding * * 不能使用填充向量 * java.security.InvalidAlgorithmParameterException: ECB mode cannot use IV */
        System.out.println("【0】AES不指定模式和填充，默认为 ECB/PKCS5Padding，输入可以不是16字节，也不需要填充向量\n");
        //128
        byte[] encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_128,EncodeType.AES_DEFAULT);
        encryptOrdecrypt(false,encrypt,key,null,AESType.AES_128,EncodeType.AES_DEFAULT);
        //192
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_192,EncodeType.AES_DEFAULT);
        encryptOrdecrypt(false,encrypt,key,null,AESType.AES_192,EncodeType.AES_DEFAULT);
        //256
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_256,EncodeType.AES_DEFAULT);
        encryptOrdecrypt(false,encrypt,key,null,AESType.AES_256,EncodeType.AES_DEFAULT);

结果如下:

【0】AES不指定模式和填充，默认为 ECB/PKCS5Padding，输入可以不是16字节，也不需要填充向量

秘钥长度，128，加密方式： AES,加密结果:09942AC3BB18703E2BAF29EC18E69BCC
秘钥长度，128，解密方式： AES,解密结果:在线助手

秘钥长度，192，加密方式： AES,加密结果:B9F574EF92836DFD2CC0EE03E7A0E717
秘钥长度，192，解密方式： AES,解密结果:在线助手

秘钥长度，256，加密方式： AES,加密结果:118CD83850A220EFD791FF6B1FF180F8
秘钥长度，256，解密方式： AES,解密结果:在线助手

二、AES/CBC 加密方式

2.1 AES/CBC/NoPadding

• 输入必须是16字节，不然报错 javax.crypto.IllegalBlockSizeException: Input length not multiple of 16 bytes
• CBC模式必须提供初始向量IvParameterSpec，不然报错 java.security.InvalidKeyException: Parameters missing

content： 在线助手
key： www.it399.com111
javax.crypto.IllegalBlockSizeException: Input length not multiple of 16 bytes
    at com.sun.crypto.provider.CipherCore.finalNoPadding(CipherCore.java:1041)
    at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:1009)
    at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:847)
    at com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:446)
    at javax.crypto.Cipher.doFinal(Cipher.java:2165)
    at com.csy.spring.it399.controller.encode.aes.AESUtil.encrypt(AESUtil.java:80)
    at com.csy.spring.it399.controller.encode.aes.AESUtil.main(AESUtil.java:200)
java.security.InvalidKeyException: Parameters missing
    at com.sun.crypto.provider.CipherCore.init(CipherCore.java:470)
    at com.sun.crypto.provider.AESCipher.engineInit(AESCipher.java:313)
    at javax.crypto.Cipher.implInit(Cipher.java:802)
    at javax.crypto.Cipher.chooseProvider(Cipher.java:864)
    at javax.crypto.Cipher.init(Cipher.java:1249)
    at javax.crypto.Cipher.init(Cipher.java:1186)
    at com.csy.spring.it399.controller.encode.aes.AESUtil.decrypt(AESUtil.java:117)
    at com.csy.spring.it399.controller.encode.aes.AESUtil.main(AESUtil.java:202)
encode： null
decode： null

初始化加密模式的时改成

 Cipher cipher = Cipher.getInstance(“AES/CBC/NoPadding”);

java.security.InvalidKeyException: Parameters missing解决办法:

 if (modeAndPadding.equals(EncodeType.AES_CBC_NoPadding)) {
         //指定一个初始化向量 (Initialization vector，IV)， IV 必须是16位
         cipher.init(Cipher.ENCRYPT_MODE, keySpec, new IvParameterSpec(getIV()));
   } else {
         cipher.init(Cipher.ENCRYPT_MODE, keySpec);
}

下面是 AES/CBC/NoPadding,AES/CBC/PKCS5Padding,AES/CBC/ISO10126Padding 128位,192位,256加密解密(文末附完整代码，点击此处使用AES128/192/256在线加密解密)

       /** * 1.1 AES/CBC * AES/CBC/NoPadding * AES/CBC/PKCS5Padding * AES/CBC/ISO10126Padding */
        System.out.println("【1.1】AES_CBC_NoPadding模式");
        content = "在线助手在线助手在线助手在线助手";
        key = "www.it399.com";
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_CBC_NoPadding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_CBC_NoPadding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_CBC_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_CBC_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_CBC_ISO10126Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_CBC_ISO10126Padding);

秘钥长度，128，加密方式： AES/CBC/NoPadding,加密结果:81C094D454913311113FA1E5B5A3B6778DC81026A19A52C51FAF54B82E48448A813E1FDE3F97E8ACE13FE37C550023DA
秘钥长度，128，解密方式： AES/CBC/NoPadding,解密结果:在线助手在线助手在线助手在线助手

秘钥长度，192，加密方式： AES/CBC/PKCS5Padding,加密结果:5BCD216A00741AB48668742393A8F995C63B4A875F6BD460BFB04DBCF5BF35E429C0C177A54D0DAFF7E38DD83EA11B0C434B836B8EAAE015666987377AF8C9D0
秘钥长度，192，解密方式： AES/CBC/PKCS5Padding,解密结果:在线助手在线助手在线助手在线助手

秘钥长度，256，加密方式： AES/CBC/ISO10126Padding,加密结果:1A45746F4E488AB13752033C21F9EE9C64417ECAA3A8FA08326D76DD1A052445218AA6D5408AC1D2F52998437C0786EEBC3990098DC36E6B7E6701474BA737D4
秘钥长度，256，解密方式： AES/CBC/ISO10126Padding,解密结果:在线助手在线助手在线助手在线助手

三、AES/CFB 加密方式

• 需要填充变量，不然报如下错误

Exception in thread "main" java.security.InvalidKeyException: 
Parameters missing

下面是AES/CFB/NoPadding，AES/CFB/PKCS5Padding，AES/CFB/ISO10126Padding 128位，192位，256位加加密解密

       /** * 1.2 AES/CFB * AES/CBC/NoPadding * AES/CBC/PKCS5Padding * AES/CBC/ISO10126Padding */
        System.out.println("【1.2】AES_CFB_NoPadding模式\n");
        content = "在线助手";
        // 生成密钥需要的密码值
        key = "http://www.it399.com";
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_CFB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_CFB_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_CFB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_CFB_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_CFB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_CFB_PKCS5Padding);

四、AES/ECB 加密方式

• AES/ECB不要填充变量，不然会报如下错误

Exception in thread "main" java.security.InvalidAlgorithmParameterException: ECB mode 
cannot use IV

下面是AES/ECB/NoPadding，AES/ECB/PKCS5Padding，AES/ECB/ISO10126Padding 128位，192位，256位加加密解密

        /** * 1.3 AES/ECB * AES/ECB/NoPadding * AES/ECB/PKCS5Padding * AES/ECB/ISO10126Padding */
        System.out.println("【1.3】AES_ECB模式");
        content = "在线助手";
        // 生成密钥需要的密码值
        key = "http://www.it399.com";
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_128,EncodeType.AES_ECB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,null,AESType.AES_128,EncodeType.AES_ECB_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_192,EncodeType.AES_ECB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,null,AESType.AES_192,EncodeType.AES_ECB_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_256,EncodeType.AES_ECB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,null,AESType.AES_256,EncodeType.AES_ECB_PKCS5Padding);

五、AES/OFB 加密方式

下面是AES/OFB/NoPadding，AES/OFB/PKCS5Padding，AES/OFB/ISO10126Padding 128位，192位，256位加加密解密
* 需要填充向量

        /** * 1.4 AES/OFB * AES/OFB/NoPadding * AES/OFB/PKCS5Padding * AES/OFB/ISO10126Padding */
        System.out.println("【1.4】AES_OFB模式");
        content = "在线助手";
        // 生成密钥需要的密码值
        key = "http://www.it399.com";
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_OFB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_OFB_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_OFB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_OFB_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_OFB_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_OFB_PKCS5Padding);

六、AES/PCBC 加密方式

下面是AES/PCBC/NoPadding，AES/PCBC/PKCS5Padding，AES/PCBC/ISO10126Padding 128位，192位，256位加加密解密
* 需要填充向量

       /** * 1.5 AES/PCBC * AES/PCBC/NoPadding * AES/PCBC/PKCS5Padding * AES/PCBC/ISO10126Padding */
        System.out.println("【1.5】AES_PCBC模式");
        content = "在线助手";
        // 生成密钥需要的密码值
        key = "http://www.it399.com";
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_PCBC_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_PCBC_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_PCBC_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_PCBC_PKCS5Padding);
        encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_PCBC_PKCS5Padding);
        encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_PCBC_PKCS5Padding);

七、完整代码

AESUtil .java

    import java.io.UnsupportedEncodingException;
    import java.security.InvalidAlgorithmParameterException;
    import java.security.InvalidKeyException;
    import java.security.NoSuchAlgorithmException;
    import java.security.SecureRandom;
    import javax.crypto.BadPaddingException;
    import javax.crypto.Cipher;
    import javax.crypto.IllegalBlockSizeException;
    import javax.crypto.KeyGenerator;
    import javax.crypto.NoSuchPaddingException;
    import javax.crypto.SecretKey;
    import javax.crypto.spec.IvParameterSpec;
    import javax.crypto.spec.SecretKeySpec;
    /** * 在线助手|在线工具|在线生成|在线制作 * http://www.it399.com/ * 在线助手博客 * http://www.it399.com/blog/index */
    public class AESUtil { 
   
        public static final String CHARSET = "UTF-8";
        private static byte[] encryptOrDecrypt(int mode,byte[] byteContent, String key,byte[] iv, AESType type, String modeAndPadding) throws InvalidKeyException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, NoSuchPaddingException, BadPaddingException, IllegalBlockSizeException {
            KeyGenerator kgen = KeyGenerator.getInstance("AES");
            //此处解决mac，linux报错
            SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
            random.setSeed(key.getBytes());
            kgen.init(type.value, random);
            SecretKey secretKey = kgen.generateKey();
            byte[] enCodeFormat = secretKey.getEncoded();
            SecretKeySpec keySpec = new SecretKeySpec(enCodeFormat, "AES");
            Cipher cipher = Cipher.getInstance(modeAndPadding);// 创建密码器
            if ( null !=iv ) {
                //指定一个初始化向量 (Initialization vector，IV)， IV 必须是16位
                cipher.init(mode, keySpec, new IvParameterSpec(iv));
            } else {
                cipher.init(mode, keySpec);
            }
            byte[] result = cipher.doFinal(byteContent);
            return result;
        }
        public static void main(String[] args) throws Exception {
    // System.out.println("【1】AES不指定模式和填充，默认为 ECB/PKCS5Padding，输入可以不是16字节，也不需要填充向量\n");
    // // 需要加密的内容
    // String content = "在线助手";
    // // 生成密钥需要的密码值
    // String key = "www.it399.com111";
    // System.out.println("content： " + content + "\nkey： " + key);
    // byte[] encodeByte;
    // byte[] decodeByte;
    // //默认方式 每次加密都不一样，但是秘钥是一样的，所以解密还是一样的
    // // 内容加密后的值
    // encodeByte = encrypt(content.getBytes(CHARSET), key, AESType.AES_128, EncodeType.AES_DEFAULT);
    // String encodeStr = TypeConvert.bytesToHexString(encodeByte);
    // // 被加密的内容解密后的值
    // decodeByte = decrypt(encodeByte, key, AESType.AES_128, EncodeType.AES_DEFAULT);
    // String decodeStr = new String(decodeByte,CHARSET);
    // System.out.println("encode： " + encodeStr + "\ndecode： " + decodeStr);
    //
    //
    // System.out.println("【2】AES_CBC_NoPadding模式，输入必须是16*n字节，需要填充向量\n");
    // // 内容加密后的值
    // //待加密内容不足16*n位 报错javax.crypto.IllegalBlockSizeException: Input length not multiple of 16 bytes
    // //需要填充向量，不然报错java.security.InvalidKeyException: Parameters missing
    // //得到加密后的内容先base64编码再解码再传给解码，不然直接转回乱码
    // content = "哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈";
    // encodeByte = encrypt(content.getBytes(CHARSET), key, AESType.AES_256, EncodeType.AES_CBC_NoPadding);
    // encodeStr = TypeConvert.bytesToHexString(encodeByte);
    // decodeByte = decrypt(TypeConvert.hexStringToBytes(encodeStr), key, AESType.AES_256, EncodeType.AES_CBC_NoPadding);
    // decodeStr = new String(decodeByte,CHARSET);
    // System.out.println("encode： " + encodeStr + "\ndecode： " + decodeStr);
            String content = "在线助手";
            // 生成密钥需要的密码值
            String key = "www.it399.com";
            byte[] encrypt;
            /** * AES加密方式一:AES不指定模式和填充，默认为 ECB/PKCS5Padding */
    // System.out.println("【0】AES不指定模式和填充，默认为 ECB/PKCS5Padding，输入可以不是16字节，也不需要填充向量\n");
    // //128
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_128,EncodeType.AES_DEFAULT);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_128,EncodeType.AES_DEFAULT);
    // //192
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_DEFAULT);
    // encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_DEFAULT);
    // //256
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_256,EncodeType.AES_DEFAULT);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_256,EncodeType.AES_DEFAULT);
    // /**
    // * 1.1 AES/CBC （需要填充向量16*n）
    // * AES/CBC/NoPadding
    // * AES/CBC/PKCS5Padding
    // * AES/CBC/ISO10126Padding
    // */
    // System.out.println("【1.1】AES_CBC_NoPadding模式，需要填充向量,待加密必须是16*n");
    // content = "在线助手在线助手在线助手在线助手";
    // key = "www.it399.com";
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_CBC_NoPadding);
    // encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_CBC_NoPadding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_CBC_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_CBC_PKCS5Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_CBC_ISO10126Padding);
    // encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_CBC_ISO10126Padding);
    // /**
    // * 1.2 AES/CFB
    // * AES/CBC/NoPadding
    // * AES/CBC/PKCS5Padding
    // * AES/CBC/ISO10126Padding
    // */
    // System.out.println("【1.2】AES_CFB_NoPadding模式\n");
    // content = "在线助手";
    // // 生成密钥需要的密码值
    // key = "http://www.it399.com";
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_CFB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_CFB_PKCS5Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_CFB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_CFB_PKCS5Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_CFB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_CFB_PKCS5Padding);
    // /**
    // * 1.2 AES/ECB
    // * AES/ECB/NoPadding
    // * AES/ECB/PKCS5Padding
    // * AES/ECB/ISO10126Padding
    // */
    // System.out.println("【1.3】AES_ECB模式");
    // content = "在线助手";
    // // 生成密钥需要的密码值
    // key = "http://www.it399.com";
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_128,EncodeType.AES_ECB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_128,EncodeType.AES_ECB_PKCS5Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_192,EncodeType.AES_ECB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_192,EncodeType.AES_ECB_PKCS5Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_256,EncodeType.AES_ECB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_256,EncodeType.AES_ECB_PKCS5Padding);
            /** * 1.4 AES/OFB * AES/OFB/NoPadding * AES/OFB/PKCS5Padding * AES/OFB/ISO10126Padding */
            System.out.println("【1.4】AES_OFB模式");
            content = "在线助手";
            // 生成密钥需要的密码值
            key = "http://www.it399.com";
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_OFB_PKCS5Padding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_OFB_PKCS5Padding);
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_OFB_PKCS5Padding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_OFB_PKCS5Padding);
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_OFB_PKCS5Padding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_OFB_PKCS5Padding);
            /** * 1.5 AES/PCBC * AES/PCBC/NoPadding * AES/PCBC/PKCS5Padding * AES/PCBC/ISO10126Padding */
            System.out.println("【1.5】AES_PCBC模式");
            content = "在线助手";
            // 生成密钥需要的密码值
            key = "http://www.it399.com";
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_PCBC_PKCS5Padding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_PCBC_PKCS5Padding);
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_PCBC_PKCS5Padding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_PCBC_PKCS5Padding);
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_PCBC_PKCS5Padding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_PCBC_PKCS5Padding);
            //
    // /**1.3 AES/CBC
    // * AES_CBC_NoPadding模式（填充向量可选）
    // */
            System.out.println("【1.3】AES_CBC_NoPadding模式");
            content = "在线助手在线助手在线助手在线助手";
            // 生成密钥需要的密码值
            key = "www.it399.com";
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_128,EncodeType.AES_CBC_NoPadding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_128,EncodeType.AES_CBC_NoPadding);
            content = "在线助手";
            // 生成密钥需要的密码值
            key = "www.it399.com";
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_192,EncodeType.AES_CBC_PKCS5Padding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_192,EncodeType.AES_CBC_PKCS5Padding);
            encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,getIV(),AESType.AES_256,EncodeType.AES_CBC_ISO10126Padding);
            encryptOrdecrypt(false,encrypt,key,getIV(),AESType.AES_256,EncodeType.AES_CBC_ISO10126Padding);
    //
    //
    //
    // /**
    // * 2.1 AES/CFB 128/192/256位加解密
    // * AES_CFB_NoPadding模式（填充向量可选）
    // */
    // System.out.println("【2.1】AES_CFB_NoPadding模式，需要填充向量\n");
    // content = "在线助手";
    // // 生成密钥需要的密码值
    // key = "www.it399.com";
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_128,EncodeType.AES_CFB_NoPadding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_128,EncodeType.AES_CFB_NoPadding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_192,EncodeType.AES_CFB_NoPadding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_192,EncodeType.AES_CFB_NoPadding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_256,EncodeType.AES_CFB_NoPadding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_256,EncodeType.AES_CFB_NoPadding);
    //
    // /**
    // * 2.2 AES/CFB
    // * AES_CFB_NoPadding模式（填充向量可选）
    // */
    // System.out.println("【2.2】AES_CFB_NoPadding模式\n");
    // content = "在线助手";
    // // 生成密钥需要的密码值
    // key = "www.it399.com";
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_128,EncodeType.AES_CFB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_128,EncodeType.AES_CFB_PKCS5Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_192,EncodeType.AES_CFB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_192,EncodeType.AES_CFB_PKCS5Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_256,EncodeType.AES_CFB_PKCS5Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_256,EncodeType.AES_CFB_PKCS5Padding);
    //
    // /**2.3 AES/CFB
    // * AES_CFB_NoPadding模式（填充向量可选）
    // */
    // System.out.println("【2.3】AES_CFB_NoPadding模式\n");
    // content = "在线助手";
    // // 生成密钥需要的密码值
    // key = "www.it399.com";
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_128,EncodeType.AES_CFB_ISO10126Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_128,EncodeType.AES_CFB_ISO10126Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_192,EncodeType.AES_CFB_ISO10126Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_192,EncodeType.AES_CFB_ISO10126Padding);
    // encrypt = encryptOrdecrypt(true,content.getBytes(CHARSET),key,null,AESType.AES_256,EncodeType.AES_CFB_ISO10126Padding);
    // encryptOrdecrypt(false,encrypt,key,null,AESType.AES_256,EncodeType.AES_CFB_ISO10126Padding);
        }
        /** * * @param isEncrypt * @param source * @param key * @param type * @param encodeType */
        public static byte[] encryptOrdecrypt(boolean isEncrypt,byte[] source,String key,byte[] iv,AESType type,String encodeType) throws UnsupportedEncodingException, InvalidAlgorithmParameterException, NoSuchAlgorithmException, NoSuchPaddingException, BadPaddingException, IllegalBlockSizeException, InvalidKeyException {
            if (isEncrypt){
                byte[] encodeByte = encryptOrDecrypt(Cipher.ENCRYPT_MODE,source,key,iv,type,encodeType);
                String encodeStr = TypeConvert.bytesToHexString(encodeByte);
                return encodeByte;
            }else{
                byte[] decodeByte = encryptOrDecrypt(Cipher.DECRYPT_MODE,source, key,iv,type, encodeType);
                String decodeStr = new String(decodeByte,CHARSET);
                return decodeByte;
            }
        }
        /** * 指定一个初始化向量 (Initialization vector，IV)，IV 必须是16位 */
        public static final byte[] getIV() throws Exception {
            return "1234567812345678".getBytes(CHARSET);
        }

EncodeType

/** * 在线助手|在线工具|在线生成|在线制作 * http://www.it399.com/ * 在线助手博客 * http://www.it399.com/blog/index */
public class EncodeType { 
   
// 算法/模式/填充 16字节加密后数据长度 不满16字节加密后长度
// AES/CBC/NoPadding 16 不支持
// AES/CBC/PKCS5Padding 32 16
// AES/CBC/ISO10126Padding 32 16
// AES/CFB/NoPadding 16 原始数据长度
// AES/CFB/PKCS5Padding 32 16
// AES/CFB/ISO10126Padding 32 16
// AES/ECB/NoPadding 16 不支持
// AES/ECB/PKCS5Padding 32 16
// AES/ECB/ISO10126Padding 32 16
// AES/OFB/NoPadding 16 原始数据长度
// AES/OFB/PKCS5Padding 32 16
// AES/OFB/ISO10126Padding 32 16
// AES/PCBC/NoPadding 16 不支持
// AES/PCBC/PKCS5Padding 32 16
// AES/PCBC/ISO10126Padding 32 16
    //默认为 ECB/PKCS5Padding
    public final static String AES_DEFAULT = "AES";
    public final static String AES_CBC_NoPadding = "AES/CBC/NoPadding";
    public final static String AES_CBC_PKCS5Padding = "AES/CBC/PKCS5Padding";
    public final static String AES_CBC_ISO10126Padding = "AES/CBC/ISO10126Padding";
    public final static String AES_CFB_NoPadding = "AES/CFB/NoPadding";
    public final static String AES_CFB_PKCS5Padding = "AES/CFB/PKCS5Padding";
    public final static String AES_CFB_ISO10126Padding = "AES/CFB/ISO10126Padding";
    public final static String AES_ECB_NoPadding = "AES/ECB/NoPadding";
    public final static String AES_ECB_PKCS5Padding = "AES/ECB/PKCS5Padding";
    public final static String AES_ECB_ISO10126Padding = "AES/ECB/ISO10126Padding";
    public final static String AES_OFB_NoPadding = "AES/OFB/NoPadding";
    public final static String AES_OFB_PKCS5Padding = "AES/OFB/PKCS5Padding";
    public final static String AES_OFB_ISO10126Padding = "AES/OFB/ISO10126Padding";
    public final static String AES_PCBC_NoPadding = "AES/PCBC/NoPadding";
    public final static String AES_PCBC_PKCS5Padding = "AES/PCBC/PKCS5Padding";
    public final static String AES_PCBC_ISO10126Padding = "AES/PCBC/ISO10126Padding";
}

TypeConvert

    /** * 在线助手|在线工具|在线生成|在线制作 * http://www.it399.com/ * 在线助手博客 * http://www.it399.com/blog/index */
    public class TypeConvert { 
   
        /** * 字符串转换成十六进制字符串 */
        public static String str2HexStr(String str) {
            char[] chars = "0123456789ABCDEF".toCharArray();
            StringBuilder sb = new StringBuilder("");
            byte[] bs = str.getBytes();
            int bit;
            for (int i = 0; i < bs.length; i++) {
                bit = (bs[i] & 0x0f0) >> 4;
                sb.append(chars[bit]);
                bit = bs[i] & 0x0f;
                sb.append(chars[bit]);
            }
            return sb.toString();
        }
        /** * Convert hex string to byte[] * * @param hexString the hex string * @return byte[] */
        public static byte[] hexStringToBytes(String hexString) {
            if (hexString == null || hexString.equals("")) {
                return null;
            }
            hexString = hexString.toUpperCase();
            int length = hexString.length() / 2;
            char[] hexChars = hexString.toCharArray();
            byte[] d = new byte[length];
            for (int i = 0; i < length; i++) {
                int pos = i * 2;
                d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1]));
            }
            return d;
        }
        /** * Convert char to byte * * @param c char * @return byte */
        private static byte charToByte(char c) {
            return (byte) "0123456789ABCDEF".indexOf(c);
        }
        /** * 数组转换成十六进制字符串 * @param bArray byte[] * @return HexString */
        public static final String bytesToHexString(byte[] bArray) {
            if (bArray == null || bArray.length==0){
                return null;
            }
            StringBuffer sb = new StringBuffer(bArray.length);
            String sTemp;
            for (int i = 0; i < bArray.length; i++) {
                sTemp = Integer.toHexString(0xFF & bArray[i]);
                if (sTemp.length() < 2){
                    sb.append(0);
                }
                sb.append(sTemp.toUpperCase());
            }
            return sb.toString();
        }
        /** * 十六进制字符串转换成字符串 * @param hexStr * @return String */
        public static String hexStr2Str(String hexStr) {
            String str = "0123456789ABCDEF";
            char[] hexs = hexStr.toCharArray();
            byte[] bytes = new byte[hexStr.length() / 2];
            int n;
            for (int i = 0; i < bytes.length; i++) {
                n = str.indexOf(hexs[2 * i]) * 16;
                n += str.indexOf(hexs[2 * i + 1]);
                bytes[i] = (byte) (n & 0xff);
            }
            return new String(bytes);
        }
        /** * @param hexString String str = "000AB" * @return */
        public static int hexString2Int(String hexString){
            Integer num = Integer.valueOf(hexString,16);
            return num;
        }
        /** * 把byte转为字符串的bit */
        public static String byteToBitString(byte b) {
            return ""
                    + (byte) ((b >> 7) & 0x1) + (byte) ((b >> 6) & 0x1)
                    + (byte) ((b >> 5) & 0x1) + (byte) ((b >> 4) & 0x1)
                    + (byte) ((b >> 3) & 0x1) + (byte) ((b >> 2) & 0x1)
                    + (byte) ((b >> 1) & 0x1) + (byte) ((b >> 0) & 0x1);
        }
        /** * 把byte转为字符串数组的bit */
        public static String[] byteToBitStrings(byte b) {
            String[] bit = new String[8];
            bit[0] = ""+ (byte) ((b >> 7) & 0x1);
            bit[1] = ""+ (byte) ((b >> 6) & 0x1);
            bit[2] = ""+ (byte) ((b >> 5) & 0x1);
            bit[3] = ""+ (byte) ((b >> 4) & 0x1);
            bit[4] = ""+ (byte) ((b >> 3) & 0x1);
            bit[5] = ""+ (byte) ((b >> 2) & 0x1);
            bit[6] = ""+ (byte) ((b >> 1) & 0x1);
            bit[7] = ""+ (byte) ((b >> 0) & 0x1);
            return bit;
        }
        public static void main(String[] args){
            String hexString = "3A60432A5C01211F291E0F4E0C132825";
            byte[] result = hexStringToBytes(hexString);
            System.out.println(new String(result));
            System.out.println(bytesToHexString(result));
        }
        //base64字符串转byte[]
        public static byte[] base64String2ByteFun(String base64Str){
            return Base64.decodeBase64(base64Str);
        }
        //byte[]转base64
        public static String byte2Base64StringFun(byte[] b){
            return Base64.encodeBase64String(b);
        }
    }

AESType

    /** * 在线助手|在线工具|在线生成|在线制作 * http://www.it399.com/ * 在线助手博客 * http://www.it399.com/blog/index */
    enum AESType {
        AES_128(128), AES_192(192), AES_256(256);
        public int value;
        private AESType(int value) {
            this.value = value;
        }
        public int getValue() {
            return value;
        }
        public void setValue(int value) {
            this.value = value;
        }
    }

转载请注明来自 在线助手 ,原文AES 128/192/256位CBC/CFB/ECB/OFB/PCBC加密解密,链接:http://www.it399.com/blog/web/201805211243