.net core 使用DES加密字符串
找了很久,都是用的第三方的插件处理,但是第三方的插件不兼容.net core中内置包。
接下来分享自己的方法:
1、创建一个加密方法类:SecurityHelper。
public class SecurityHelper { #region 加密解密法一 //默认密钥向量 private static byte[] Keys = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F }; /// <summary> /// DES加密字符串 /// </summary> /// <param name="encryptString">待加密的字符串</param> /// <param name="encryptKey">加密密钥,要求为16位</param> /// <returns>加密成功返回加密后的字符串,失败返回源串</returns> public static string EncryptDES(string encryptString, string encryptKey = "Key123Ace#321Key") { try { byte[] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 16)); byte[] rgbIV = Keys; byte[] inputByteArray = Encoding.UTF8.GetBytes(encryptString); var DCSP = Aes.Create(); MemoryStream mStream = new MemoryStream(); CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write); cStream.Write(inputByteArray, 0, inputByteArray.Length); cStream.FlushFinalBlock(); return Convert.ToBase64String(mStream.ToArray()); } catch (Exception ex) { return ex.Message + encryptString; } } /// <summary> /// DES解密字符串 /// </summary> /// <param name="decryptString">待解密的字符串</param> /// <param name="decryptKey">解密密钥,要求为16位,和加密密钥相同</param> /// <returns>解密成功返回解密后的字符串,失败返源串</returns> public static string DecryptDES(string decryptString, string decryptKey = "Key123Ace#321Key") { try { byte[] rgbKey = Encoding.UTF8.GetBytes(decryptKey.Substring(0, 16)); byte[] rgbIV = Keys; byte[] inputByteArray = Convert.FromBase64String(decryptString); var DCSP = Aes.Create(); MemoryStream mStream = new MemoryStream(); CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write); Byte[] inputByteArrays = new byte[inputByteArray.Length]; cStream.Write(inputByteArray, 0, inputByteArray.Length); cStream.FlushFinalBlock(); return Encoding.UTF8.GetString(mStream.ToArray()); } catch (Exception ex) { return ex.Message + decryptString; } } #endregion }
2、调用方法:
//加密字符串 var s = SecurityHelper.EncryptDES("fuckyou"); //解密字符串 var s1 = SecurityHelper.DecryptDES(s);
注意:加密的密钥必须是16位,因为是通过AES处理的Create,AES内置的位数为16位。
【本文由“oSeHTs-IsJAOjA2yk-lgG7H6ivAU@wechat.sohu.com”发布,2017年5月21日】