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添加项目文件。

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jl
2023-01-13 15:30:20 +08:00
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commit bf208bde56
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Common/EncryptHelper.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Security.Cryptography;
using System.IO;
namespace Epost.Common
{
#region 加解密
/// <summary>
/// 加解密
/// </summary>
public class EncryptHelper
{
#region 全局变量
/// <summary>
/// 加密密钥必须为8位字符串
/// </summary>
protected static string Key = "12345678";
#endregion
#region 方法
#region MD5
#region MD5加密 16位
/// <summary>
/// MD5加密 16位
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string EncryptMD5By16(string str)
{
return str;
}
#endregion
#region MD5加密 32位
/// <summary>
/// MD5加密 32位
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string EncryptMD5By32(string str)
{
//MD5加密
var md5 = MD5.Create();
var bs = md5.ComputeHash(Encoding.UTF8.GetBytes(str));
var sb = new StringBuilder();
foreach (byte b in bs)
{
sb.Append(b.ToString("x2"));
}
//所有字符转为大写
return sb.ToString().ToUpper();
}
#endregion
#region MD5解密 16位
/// <summary>
/// MD5解密 16位
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string DecryptMD5By16(string str)
{
return str;
}
#endregion
#region MD5解密 32位
/// <summary>
/// MD5解密 32位
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string DecryptMD5By32(string str)
{
return str;
}
#endregion
#endregion
#region DES
#region DES加密 16位
/// <summary>
/// DES加密 16位
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string EncryptDESBy16(string str)
{
return str;
}
#endregion
#region DES加密 32位
/// <summary>
/// DES加密 32位
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string EncryptDESBy32(string str)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] inputByteArray = Encoding.Default.GetBytes(str);
des.Key = ASCIIEncoding.ASCII.GetBytes(Key);
des.IV = ASCIIEncoding.ASCII.GetBytes(Key);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:X2}", b);
}
ret.ToString();
return ret.ToString();
}
/// <summary>
/// DES加密 32位
/// </summary>
/// <param name="str"></param>
/// <param name="key"></param>
/// <returns></returns>
public static string EncryptDESBy32(string str, string key)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] inputByteArray;
inputByteArray = Encoding.Default.GetBytes(str);
des.Key = ASCIIEncoding.ASCII.GetBytes(key);
des.IV = ASCIIEncoding.ASCII.GetBytes(key);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
foreach (byte b in ms.ToArray())
{
ret.AppendFormat("{0:X2}", b);
}
return ret.ToString();
//DESCryptoServiceProvider des = new DESCryptoServiceProvider();
//byte[] inputByteArray = Encoding.Default.GetBytes(str);
//des.Key = ASCIIEncoding.ASCII.GetBytes(key);
//des.IV = ASCIIEncoding.ASCII.GetBytes(key);
//MemoryStream ms = new MemoryStream();
//CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
//cs.Write(inputByteArray, 0, inputByteArray.Length);
//cs.FlushFinalBlock();
//StringBuilder ret = new StringBuilder();
//foreach (byte b in ms.ToArray())
//{
// ret.AppendFormat("{0:X2}", b);
//}
//ret.ToString();
//return ret.ToString();
}
#endregion
#region DES解密 16位
/// <summary>
/// DES解密 16位
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string DecryptDESBy16(string str)
{
return str;
}
#endregion
#region DES解密 32位
/// <summary>
/// DES解密 32位
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static string DecryptDESBy32(string str)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
byte[] inputByteArray = new byte[str.Length / 2];
for (int x = 0; x < str.Length / 2; x++)
{
int i = (Convert.ToInt32(str.Substring(x * 2, 2), 16));
inputByteArray[x] = (byte)i;
}
des.Key = ASCIIEncoding.ASCII.GetBytes(Key);
des.IV = ASCIIEncoding.ASCII.GetBytes(Key);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
StringBuilder ret = new StringBuilder();
return System.Text.Encoding.Default.GetString(ms.ToArray());
}
/// <summary>
/// DES解密 32位
/// </summary>
/// <param name="str"></param>
/// <param name="key"></param>
/// <returns></returns>
public static string DecryptDESBy32(string str, string key)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
int len;
len = str.Length / 2;
byte[] inputByteArray = new byte[len];
int x, i;
for (x = 0; x < len; x++)
{
i = Convert.ToInt32(str.Substring(x * 2, 2), 16);
inputByteArray[x] = (byte)i;
}
des.Key = ASCIIEncoding.ASCII.GetBytes(key);
des.IV = ASCIIEncoding.ASCII.GetBytes(key);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return Encoding.Default.GetString(ms.ToArray());
}
#endregion
#endregion
#endregion
}
#endregion
}