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~
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- lx624909677 2016-03-28 06:15关注
/// 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; }
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