C#加密算法汇总(转载)http://www.cnblogs.com/zengxiangzhan/archive/2010/01/30/1659687.html
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
|
方法一: //须添加对System.Web的引用 using System.Web.Security; ... /// <summary> /// SHA1加密字符串 /// </summary> /// <param name="source">源字符串</param> /// <returns>加密后的字符串</returns> public string SHA1( string source) { return FormsAuthentication.HashPasswordForStoringInConfigFile(source, "SHA1" ); } /// <summary> /// MD5加密字符串 /// </summary> /// <param name="source">源字符串</param> /// <returns>加密后的字符串</returns> public string MD5( string source) { return FormsAuthentication.HashPasswordForStoringInConfigFile(source, "MD5" );; } |
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
|
方法二(可逆加密解密): using System.Security.Cryptography; ... public string Encode( string data) { byte [] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64); byte [] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64); DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); int i = cryptoProvider.KeySize; MemoryStream ms = new MemoryStream(); CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateEncryptor(byKey, byIV), CryptoStreamMode.Write); StreamWriter sw = new StreamWriter(cst); sw.Write(data); sw.Flush(); cst.FlushFinalBlock(); sw.Flush(); return Convert.ToBase64String(ms.GetBuffer(), 0, ( int )ms.Length); } public string Decode( string data) { byte [] byKey = System.Text.ASCIIEncoding.ASCII.GetBytes(KEY_64); byte [] byIV = System.Text.ASCIIEncoding.ASCII.GetBytes(IV_64); byte [] byEnc; try { byEnc = Convert.FromBase64String(data); } catch { return null ; } DESCryptoServiceProvider cryptoProvider = new DESCryptoServiceProvider(); MemoryStream ms = new MemoryStream(byEnc); CryptoStream cst = new CryptoStream(ms, cryptoProvider.CreateDecryptor(byKey, byIV), CryptoStreamMode.Read); StreamReader sr = new StreamReader(cst); return sr.ReadToEnd(); } |
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
|
方法三(MD5不可逆): using System.Security.Cryptography; ... //MD5不可逆加密 //32位加密 public string GetMD5_32( string s, string _input_charset) { MD5 md5 = new MD5CryptoServiceProvider(); byte [] t = md5.ComputeHash(Encoding.GetEncoding(_input_charset).GetBytes(s)); StringBuilder sb = new StringBuilder(32); for ( int i = 0; i < t.Length; i++) { sb.Append(t[i].ToString( "x" ).PadLeft(2, '0' )); } return sb.ToString(); } //16位加密 public static string GetMd5_16( string ConvertString) { MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider(); string t2 = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(ConvertString)), 4, 8); t2 = t2.Replace( "-" , "" ); return t2; } |
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
|
方法四(对称加密): using System.IO; using System.Security.Cryptography; ... private SymmetricAlgorithm mobjCryptoService; private string Key; /// <summary> /// 对称加密类的构造函数 /// </summary> public SymmetricMethod() { mobjCryptoService = new RijndaelManaged(); Key = "Guz(%&hj7x89H$yuBI0456FtmaT5&fvHUFCy76*h%(HilJ$lhj!y6&(*jkP87jH7" ; } /// <summary> /// 获得密钥 /// </summary> /// <returns>密钥</returns> 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); } /// <summary> /// 获得初始向量IV /// </summary> /// <returns>初试向量IV</returns> 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); } /// <summary> /// 加密方法 /// </summary> /// <param name="Source">待加密的串</param> /// <returns>经过加密的串</returns> public string Encrypto( string Source) { byte [] bytIn = UTF8Encoding.UTF8.GetBytes(Source); MemoryStream ms = new MemoryStream(); mobjCryptoService.Key = GetLegalKey(); mobjCryptoService.IV = GetLegalIV(); ICryptoTransform encrypto = mobjCryptoService.CreateEncryptor(); CryptoStream cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Write); cs.Write(bytIn, 0, bytIn.Length); cs.FlushFinalBlock(); ms.Close(); byte [] bytOut = ms.ToArray(); return Convert.ToBase64String(bytOut); } /// <summary> /// 解密方法 /// </summary> /// <param name="Source">待解密的串</param> /// <returns>经过解密的串</returns> public string Decrypto( string Source) { byte [] bytIn = Convert.FromBase64String(Source); MemoryStream ms = new MemoryStream(bytIn, 0, bytIn.Length); mobjCryptoService.Key = GetLegalKey(); mobjCryptoService.IV = GetLegalIV(); ICryptoTransform encrypto = mobjCryptoService.CreateDecryptor(); CryptoStream cs = new CryptoStream(ms, encrypto, CryptoStreamMode.Read); StreamReader sr = new StreamReader(cs); return sr.ReadToEnd(); } |
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
|
方法五: using System.IO; using System.Security.Cryptography; using System.Text; ... //默认密钥向量 private static byte [] Keys = { 0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF }; /// <summary> /// DES加密字符串 /// </summary> /// <param name="encryptString">待加密的字符串</param> /// <param name="encryptKey">加密密钥,要求为8位</param> /// <returns>加密成功返回加密后的字符串,失败返回源串</returns> public static string EncryptDES( string encryptString, string encryptKey) { try { byte [] rgbKey = Encoding.UTF8.GetBytes(encryptKey.Substring(0, 8)); byte [] rgbIV = Keys; byte [] inputByteArray = Encoding.UTF8.GetBytes(encryptString); DESCryptoServiceProvider dCSP = new DESCryptoServiceProvider(); MemoryStream mStream = new MemoryStream(); CryptoStream cStream = new CryptoStream(mStream, dCSP.CreateEncryptor(rgbKey, rgbIV), CryptoStreamMode.Write); cStream.Write(inputByteArray, 0, inputByteArray.Length); cStream.FlushFinalBlock(); return Convert.ToBase64String(mStream.ToArray()); } catch { return encryptString; } } /// <summary> /// DES解密字符串 /// </summary> /// <param name="decryptString">待解密的字符串</param> /// <param name="decryptKey">解密密钥,要求为8位,和加密密钥相同</param> /// <returns>解密成功返回解密后的字符串,失败返源串</returns> public static string DecryptDES( string decryptString, string decryptKey) { try { byte [] rgbKey = Encoding.UTF8.GetBytes(decryptKey); byte [] rgbIV = Keys; byte [] inputByteArray = Convert.FromBase64String(decryptString); DESCryptoServiceProvider DCSP = new DESCryptoServiceProvider(); MemoryStream mStream = new MemoryStream(); CryptoStream cStream = new CryptoStream(mStream, DCSP.CreateDecryptor(rgbKey, rgbIV), CryptoStreamMode.Write); cStream.Write(inputByteArray, 0, inputByteArray.Length); cStream.FlushFinalBlock(); return Encoding.UTF8.GetString(mStream.ToArray()); } catch { return decryptString; } } |
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
|
方法六(文件加密): using System.IO; using System.Security.Cryptography; using System.Text; ... //加密文件 private static void EncryptData(String inName, String outName, byte [] desKey, byte [] desIV) { //Create the file streams to handle the input and output files. FileStream fin = new FileStream(inName, FileMode.Open, FileAccess.Read); FileStream fout = new FileStream(outName, FileMode.OpenOrCreate, FileAccess.Write); fout.SetLength(0); //Create variables to help with read and write. byte [] bin = new byte [100]; //This is intermediate storage for the encryption. long rdlen = 0; //This is the total number of bytes written. long totlen = fin.Length; //This is the total length of the input file. int len; //This is the number of bytes to be written at a time. DES des = new DESCryptoServiceProvider(); CryptoStream encStream = new CryptoStream(fout, des.CreateEncryptor(desKey, desIV), CryptoStreamMode.Write); //Read from the input file, then encrypt and write to the output file. while (rdlen < totlen) { len = fin.Read(bin, 0, 100); encStream.Write(bin, 0, len); rdlen = rdlen + len; } encStream.Close(); fout.Close(); fin.Close(); } //解密文件 private static void DecryptData(String inName, String outName, byte [] desKey, byte [] desIV) { //Create the file streams to handle the input and output files. FileStream fin = new FileStream(inName, FileMode.Open, FileAccess.Read); FileStream fout = new FileStream(outName, FileMode.OpenOrCreate, FileAccess.Write); fout.SetLength(0); //Create variables to help with read and write. byte [] bin = new byte [100]; //This is intermediate storage for the encryption. long rdlen = 0; //This is the total number of bytes written. long totlen = fin.Length; //This is the total length of the input file. int len; //This is the number of bytes to be written at a time. DES des = new DESCryptoServiceProvider(); CryptoStream encStream = new CryptoStream(fout, des.CreateDecryptor(desKey, desIV), CryptoStreamMode.Write); //Read from the input file, then encrypt and write to the output file. while (rdlen < totlen) { len = fin.Read(bin, 0, 100); encStream.Write(bin, 0, len); rdlen = rdlen + len; } encStream.Close(); fout.Close(); fin.Close(); } |
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
|
using System; using System.Security.Cryptography; //这个是处理文字编码的前提 using System.Text; using System.IO; /// <summary> /// DES加密方法 /// </summary> /// <param name="strPlain">明文</param> /// <param name="strDESKey">密钥</param> /// <param name="strDESIV">向量</param> /// <returns>密文</returns> public string DESEncrypt( string strPlain, string strDESKey, string strDESIV) { //把密钥转换成字节数组 byte [] bytesDESKey=ASCIIEncoding.ASCII.GetBytes(strDESKey); //把向量转换成字节数组 byte [] bytesDESIV=ASCIIEncoding.ASCII.GetBytes(strDESIV); //声明1个新的DES对象 DESCryptoServiceProvider desEncrypt= new DESCryptoServiceProvider(); //开辟一块内存流 MemoryStream msEncrypt= new MemoryStream(); //把内存流对象包装成加密流对象 CryptoStream csEncrypt= new CryptoStream(msEncrypt,desEncrypt.CreateEncryptor(bytesDESKey,bytesDESIV),CryptoStreamMode.Write); //把加密流对象包装成写入流对象 StreamWriter swEncrypt= new StreamWriter(csEncrypt); //写入流对象写入明文 swEncrypt.WriteLine(strPlain); //写入流关闭 swEncrypt.Close(); //加密流关闭 csEncrypt.Close(); //把内存流转换成字节数组,内存流现在已经是密文了 byte [] bytesCipher=msEncrypt.ToArray(); //内存流关闭 msEncrypt.Close(); //把密文字节数组转换为字符串,并返回 return UnicodeEncoding.Unicode.GetString(bytesCipher); } /// <summary> /// DES解密方法 /// </summary> /// <param name="strCipher">密文</param> /// <param name="strDESKey">密钥</param> /// <param name="strDESIV">向量</param> /// <returns>明文</returns> public string DESDecrypt( string strCipher, string strDESKey, string strDESIV) { //把密钥转换成字节数组 byte [] bytesDESKey=ASCIIEncoding.ASCII.GetBytes(strDESKey); //把向量转换成字节数组 byte [] bytesDESIV=ASCIIEncoding.ASCII.GetBytes(strDESIV); //把密文转换成字节数组 byte [] bytesCipher=UnicodeEncoding.Unicode.GetBytes(strCipher); //声明1个新的DES对象 DESCryptoServiceProvider desDecrypt= new DESCryptoServiceProvider(); //开辟一块内存流,并存放密文字节数组 MemoryStream msDecrypt= new MemoryStream(bytesCipher); //把内存流对象包装成解密流对象 CryptoStream csDecrypt= new CryptoStream(msDecrypt,desDecrypt.CreateDecryptor(bytesDESKey,bytesDESIV),CryptoStreamMode.Read); //把解密流对象包装成读出流对象 StreamReader srDecrypt= new StreamReader(csDecrypt); //明文=读出流的读出内容 string strPlainText=srDecrypt.ReadLine(); //读出流关闭 srDecrypt.Close(); //解密流关闭 csDecrypt.Close(); //内存流关闭 msDecrypt.Close(); //返回明文 return strPlainText; } |
C#加密算法汇总(转载)http://www.cnblogs.com/zengxiangzhan/archive/2010/01/30/1659687.html的更多相关文章
- HBase Coprocessor 剖析与编程实践(转载http://www.cnblogs.com/ventlam/archive/2012/10/30/2747024.html)
HBase Coprocessor 剖析与编程实践 1.起因(Why HBase Coprocessor) HBase作为列族数据库最经常被人诟病的特性包括:无法轻易建立“二级索引”,难以执行求和. ...
- http://www.cnblogs.com/yycxbjl/archive/2010/04/20/1716689.html
http://www.cnblogs.com/yycxbjl/archive/2010/04/20/1716689.html PS: 开发工具 VS2010, 所有工程都为Debug状态,本人刚接触 ...
- Linux JDK 安装及卸载 http://www.cnblogs.com/benio/archive/2010/09/14/1825909.html
参考:http://www.cnblogs.com/benio/archive/2010/09/14/1825909.html
- zero3- JPA http://www.cnblogs.com/holbrook/archive/2012/12/30/2839842.html
1.很好的博客:http://www.cnblogs.com/holbrook/archive/2012/12/30/2839842.html 2. 最新的搬到github : http://holb ...
- http://www.cnblogs.com/zhaoyang/archive/2012/01/07/2315436.html
http://www.cnblogs.com/zhaoyang/archive/2012/01/07/2315436.html
- http://www.cnblogs.com/wzh206/archive/2010/03/21/1691112.html
http://www.cnblogs.com/wzh206/archive/2010/03/21/1691112.html
- http://www.cnblogs.com/huangcong/archive/2010/06/14/1757957.html
http://www.cnblogs.com/huangcong/archive/2010/06/14/1757957.html http://www.cnblogs.com/langtianya/a ...
- http://www.cnblogs.com/hanshuhe/archive/2012/08/30/vss.html
http://www.cnblogs.com/hanshuhe/archive/2012/08/30/vss.html
- http://www.cnblogs.com/jqyp/archive/2010/08/20/1805041.html
http://www.cnblogs.com/jqyp/archive/2010/08/20/1805041.html
随机推荐
- C#中的堆和栈
看到一篇讲堆和栈的文章,是我目前为止见到讲的最易懂,详细和深入的.我翻译成中文.以此总结. 原文=>C#Heap(ing) Vs Stack(ing) in .NET 在net framewor ...
- jackson 注解的使用
在实体对象上添加 @JsonAutoDetect , 表明对该实体对象序列化成json串. @JsonAutoDetect public class User{ private int id; pri ...
- lsof,nc
安装nc, yum -y install nc; 用nc传输同步文件 A,被同步端-即需要备份复制端; tar -czvf - /|nc 192.168.1.204(同步机ip,复制文件位置机) 88 ...
- 第二百九十六天 how can I 坚持
今天果真好冷,至今遇到的最冷的一天,出去一趟,脸都快要冻瘫了. 感觉自己事真的多,找个对象还这事那事的,活该单身. 好愁人啊. 今天,魏中贺来北京,本来说的要明天聚聚,可是,都不给力啊,都不知道在忙啥 ...
- 【C++专题】static_cast, dynamic_cast, const_cast探讨
首先回顾一下C++类型转换: C++类型转换分为:隐式类型转换和显式类型转换 第1部分. 隐式类型转换 又称为“标准转换”,包括以下几种情况:1) 算术转换(Arithmetic conversion ...
- JavaIO(04)字符流--Writer and Reader
字符流: 常识:在java中一个字符等于两个字节: 操作字符流的两个类:Writer,Reader API文档介绍(Writer): public abstract class Write ...
- (DP6.1.4.2)POJ 1088 滑雪
其实下面用到的是搜索.(呜呜,DP写的过了测试用例但是却总是AC不了,所以改用搜索来做了) /* * POJ_1088.cpp * * Created on: 2013年10月13日 * Author ...
- 12个有趣的C语言面试题
摘要:12个C语言面试题,涉及指针.进程.运算.结构体.函数.内存,看看你能做出几个! 1.gets()函数 问:请找出下面代码里的问题: #include<stdio.h> int ma ...
- 自己学会汉化DevExpress控件[转]
1. 文档导读 本文档以颜色区分内容的重要性和不同性,阅读本文档时请注意以下事项: 1. 红色部分表示需要注意的重点内容:(加粗的尤甚) 2. 蓝色部分表示相应于前版本新增的内容: 3. 紫色部分表示 ...
- 通过 监听器获取sessionId
package shopping; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpSess ...