以下是关于对称加密算法的C#数据加密实现代码,大家可以根据需要更改不同的算法,文中以Rijndael算法为例:
using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
namespace DataCrypto
{
/// /// C#数据加密对称加密算法类 ///
public class SymmetricMethod
{
private SymmetricAlgorithm mobjCryptoService;
private string Key;
/// /// 对称加密类的C#数据加密 ///
public SymmetricMethod()
{
mobjCryptoService = new RijndaelManaged();
Key = "Guz(%&hj7x89H$yuBI0456FtmaT5&fvHUFCy76*h%(HilJ$lhj!y6&(*jkP87jH7";
}
/// /// 获得密钥 ///
/// 密钥
private byte[] GetLegalKey()
{
string sTemp = Key;
mobjCryptoService.GenerateKey();
byte[] bytTemp = mobjCryptoService.Key;
int KeyLength = bytTemp.Length;
if (sTemp.Length > KeyLength)
sTemp = sTemp.Substring(0, KeyLength);
else if (sTemp.Length < KeyLength)
sTemp = sTemp.PadRight(KeyLength, ' ');
return ASCIIEncoding.ASCII.GetBytes(sTemp);
}
/// /// 获得初始向量IV ///
/// 初试向量IV
private byte[] GetLegalIV()
{
string sTemp = "E4ghj*Ghg7!rNIfb&95GUY86GfghUb#er57HBh(u%g6HJ($jhWk7&!hg4ui%$hjk";
mobjCryptoService.GenerateIV();
byte[] bytTemp = mobjCryptoService.IV;
int IVLength = bytTemp.Length;
if (sTemp.Length > IVLength)
sTemp = sTemp.Substring(0, IVLength);
else if (sTemp.Length < IVLength)
sTemp = sTemp.PadRight(IVLength, ' ');
return ASCIIEncoding.ASCII.GetBytes(sTemp);
}
/// /// 加密方法 ///
/// 待加密的串
/// 经过加密的串
public string Encrypto(string Source)
{
byte[] bytIn = UTF8Encoding.UTF8.GetBytes(Source);
MemoryStream ms = new MemoryStream();
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对称加密算法实现C#数据加密就介绍到这里。
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