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HashEncrypt.cs
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145 lines (121 loc) · 4.16 KB
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using System;
using System.IO;
using System.Data;
using System.Text;
using System.Diagnostics;
using System.Security;
using System.Security.Cryptography;
namespace Utility
{
/// <summary>
///
/// </summary>
public class HashEncrypt
{
public HashEncrypt()
{
}
//private string strIN;
private bool isReturnNum = false;
private bool isCaseSensitive = true;
/**/
/// <summary>
/// 类初始化，此类提供MD5，SHA1，SHA256，SHA512等四种算法，加密字串的长度依次增大。
/// </summary>
/// <param name="IsCaseSensitive">是否区分大小写</param>
/// <param name="IsReturnNum">是否返回为加密后字符的Byte代码</param>
public HashEncrypt(bool IsCaseSensitive, bool IsReturnNum)
{
this.isReturnNum = IsReturnNum;
this.isCaseSensitive = IsCaseSensitive;
}
private string getstrIN(string strIN)
{
//string strIN = strIN;
if (strIN.Length == 0)
{
strIN = "~NULL~";
}
if (isCaseSensitive == false)
{
strIN = strIN.ToUpper();
}
return strIN;
}
public string MD5Encrypt(string strIN)
{
if (strIN.IsNullOrEmpty()) return string.Empty;
//string strIN = getstrIN(strIN);
byte[] tmpByte;
MD5 md5 = new MD5CryptoServiceProvider();
tmpByte = md5.ComputeHash(GetKeyByteArray(getstrIN(strIN)));
md5.Clear();
return GetStringValue(tmpByte);
}
public string SHA1Encrypt(string strIN)
{
if (strIN.IsNullOrEmpty()) return string.Empty;
//string strIN = getstrIN(strIN);
byte[] tmpByte;
SHA1 sha1 = new SHA1CryptoServiceProvider();
tmpByte = sha1.ComputeHash(GetKeyByteArray(strIN));
sha1.Clear();
return GetStringValue(tmpByte);
}
public string SHA256Encrypt(string strIN)
{
if (strIN.IsNullOrEmpty()) return string.Empty;
//string strIN = getstrIN(strIN);
byte[] tmpByte;
SHA256 sha256 = new SHA256Managed();
tmpByte = sha256.ComputeHash(GetKeyByteArray(strIN));
sha256.Clear();
return GetStringValue(tmpByte);
}
public string SHA512Encrypt(string strIN)
{
if (strIN.IsNullOrEmpty()) return string.Empty;
//string strIN = getstrIN(strIN);
byte[] tmpByte;
SHA512 sha512 = new SHA512Managed();
tmpByte = sha512.ComputeHash(GetKeyByteArray(strIN));
sha512.Clear();
return GetStringValue(tmpByte);
}
private string GetStringValue(byte[] Byte)
{
string tmpString = "";
if (this.isReturnNum == false)
{
ASCIIEncoding Asc = new ASCIIEncoding();
tmpString = Asc.GetString(Byte);
}
else
{
int iCounter;
for (iCounter = 0; iCounter < Byte.Length; iCounter++)
{
tmpString = tmpString + Byte[iCounter].ToString();
}
}
return tmpString;
}
private byte[] GetKeyByteArray(string strKey)
{
ASCIIEncoding Asc = new ASCIIEncoding();
int tmpStrLen = strKey.Length;
byte[] tmpByte = new byte[tmpStrLen - 1];
tmpByte = Asc.GetBytes(strKey);
return tmpByte;
}
/// <summary>
/// .net系统的MD5加密方法
/// </summary>
/// <param name="strIN"></param>
/// <returns></returns>
public string MD5System(string strIN)
{
return strIN.IsNullOrEmpty() ? "" : System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(strIN, "MD5");
}
}
}