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：
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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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