问题描述

C#AES加密时，怎么产生密钥和密钥向量？

各位大神好，最近在做一个一个项目，牵扯到加密，网上搜到了加密算法，但是不知道AES的机密密钥和密钥向量怎么产生？烦请各位为小弟指点一下~

解决方案

 /// AES加密        /// </summary>        /// <param name=""inputdata"">输入的数据</param>        /// <param name=""iv"">向量128位</param>        /// <param name=""strKey"">加密密钥</param>        /// <returns></returns>        public static byte[] AESEncrypt(byte[] inputdata byte[] iv string strKey)        {            //分组加密算法               SymmetricAlgorithm des = Rijndael.Create();            byte[] inputByteArray = inputdata;//得到需要加密的字节数组                   //设置密钥及密钥向量            des.Key = Encoding.UTF8.GetBytes(strKey.Substring(0 32));            des.IV = iv;            using (MemoryStream ms = new MemoryStream())            {                using (CryptoStream cs = new CryptoStream(ms des.CreateEncryptor() CryptoStreamMode.Write))                {                    cs.Write(inputByteArray 0 inputByteArray.Length);                    cs.FlushFinalBlock();                    byte[] cipherBytes = ms.ToArray();//得到加密后的字节数组                       cs.Close();                    ms.Close();                                       return cipherBytes;                }            }        }        /// <summary>        /// AES解密        /// </summary>        /// <param name=""inputdata"">输入的数据</param>        /// <param name=""iv"">向量128</param>        /// <param name=""strKey"">key</param>        /// <returns></returns>        public static byte[] AESDecrypt(byte[] inputdata byte[] iv string strKey)        {            SymmetricAlgorithm des = Rijndael.Create();            des.Key = Encoding.UTF8.GetBytes(strKey.Substring(0 32));            des.IV = iv;            byte[] decryptBytes = new byte[inputdata.Length];            using (MemoryStream ms = new MemoryStream(inputdata))            {                using (CryptoStream cs = new CryptoStream(ms des.CreateDecryptor() CryptoStreamMode.Read))                {                    cs.Read(decryptBytes 0 decryptBytes.Length);                    cs.Close();                    ms.Close();                }            }            return decryptBytes;        }

解决方案二：
AES加密 自定义密钥生成