1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
using System;
using System.Security.Cryptography;
using System.IO;
using System.Text;
namespace LuaCore
{
/// <summary>
/// Summary description for Encryption
/// </summary>
public class Encryption
{
/// <summary>
/// Default Key
/// </summary>
public const string Key = "bmc.1001";
public static string Encrypt(string pToEncrypt)
{
return Encrypt(pToEncrypt, Key);
}
/// <summary>
/// 加密方法
/// </summary>
public static string Encrypt(string pToEncrypt, string sKey)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
Encoding coding = new UTF8Encoding(false);
//把字符串放到byte数组中
byte[] inputByteArray = coding.GetBytes(pToEncrypt);
//建立加密对象的密钥和偏移量
//原文使用ASCIIEncoding.ASCII方法的GetBytes方法
//使得输入密码必须输入英文文本
des.Key = coding.GetBytes(sKey);// ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = coding.GetBytes(sKey);// ASCIIEncoding.ASCII.GetBytes(sKey);
//创建其支持存储区为内存的流
MemoryStream ms = new MemoryStream();
//将数据流链接到加密转换的流
CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);
//Write the byte array into the crypto stream
//(It will end up in the memory stream)
cs.Write(inputByteArray, 0, inputByteArray.Length);
//用缓冲区的当前状态更新基础数据源或储存库，随后清除缓冲区
cs.FlushFinalBlock();
//Get the data back from the memory stream, and into a string
byte[] EncryptData = (byte[])ms.ToArray();
return System.Convert.ToBase64String(EncryptData, 0, EncryptData.Length);
}
public static string Decrypt(string pToDecrypt)
{
return Decrypt(pToDecrypt, Key);
}
/// <summary>
/// 解密方法
/// </summary>
public static string Decrypt(string pToDecrypt, string sKey)
{
Encoding coding = new UTF8Encoding(false);
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
//Put the input string into the byte array
byte[] inputByteArray = Convert.FromBase64String(pToDecrypt);
//建立加密对象的密钥和偏移量，此值重要，不能修改
des.Key = coding.GetBytes(sKey);// ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = coding.GetBytes(sKey);// ASCIIEncoding.ASCII.GetBytes(sKey);
MemoryStream ms = new MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
//Flush the data through the crypto stream into the memory stream
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return coding.GetString(ms.ToArray());
}
}
}
|
