.NET加密实例AES128

一般在多方业务交互时会对消息体使用秘钥进行加密，生成密文后进行传输，对方接收后再进行解密，最终拿到传递过来的消息实体，本文给出的是.NET AES128加密实例，希望能帮助到需要的朋友。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1.Model //命名空间需要更改
{
    public class AES128
    {
        /// <summary>
        /// AES加密 
        /// </summary>
        /// <param name="text">加密字符</param>
        /// <param name="password">加密密码</param>
        /// <param name="iv">偏移向量</param>
        /// <returns></returns>
        public static string AESEncrypt(string text, string password, string iv)
        {
            RijndaelManaged rijndaelCipher = new RijndaelManaged();

            rijndaelCipher.Mode = CipherMode.CBC;

            rijndaelCipher.Padding = PaddingMode.PKCS7;

            rijndaelCipher.KeySize = 128;

            rijndaelCipher.BlockSize = 128;

            byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);

            byte[] keyBytes = new byte[16];

            int len = pwdBytes.Length;

            if (len > keyBytes.Length) len = keyBytes.Length;

            System.Array.Copy(pwdBytes, keyBytes, len);

            rijndaelCipher.Key = keyBytes;


            byte[] ivBytes = System.Text.Encoding.UTF8.GetBytes(iv);
            rijndaelCipher.IV = ivBytes;

            ICryptoTransform transform = rijndaelCipher.CreateEncryptor();

            byte[] plainText = Encoding.UTF8.GetBytes(text);

            byte[] cipherBytes = transform.TransformFinalBlock(plainText, 0, plainText.Length);

            return Convert.ToBase64String(cipherBytes);

        }
        /// <summary>
        /// AES解密
        /// </summary>
        /// <param name="text">解密字符</param>
        /// <param name="password">解密密码</param>
        /// <param name="iv">偏移向量</param>
        /// <returns></returns>
        public static string AESDecrypt(string text, string password, string iv)
        {
            RijndaelManaged rijndaelCipher = new RijndaelManaged();

            rijndaelCipher.Mode = CipherMode.CBC;

            rijndaelCipher.Padding = PaddingMode.PKCS7;

            rijndaelCipher.KeySize = 128;

            rijndaelCipher.BlockSize = 128;

            byte[] encryptedData = Convert.FromBase64String(text);

            byte[] pwdBytes = System.Text.Encoding.UTF8.GetBytes(password);

            byte[] keyBytes = new byte[16];

            int len = pwdBytes.Length;

            if (len > keyBytes.Length) len = keyBytes.Length;

            System.Array.Copy(pwdBytes, keyBytes, len);

            rijndaelCipher.Key = keyBytes;

            byte[] ivBytes = System.Text.Encoding.UTF8.GetBytes(iv);
            rijndaelCipher.IV = ivBytes;

            ICryptoTransform transform = rijndaelCipher.CreateDecryptor();

            byte[] plainText = transform.TransformFinalBlock(encryptedData, 0, encryptedData.Length);

            return Encoding.UTF8.GetString(plainText);

        }
    }
}