в 15:31, 26 мая 2010

2010-05-26T15:31:35Z

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2010-05-26T12:10:50Z

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==TripleDESCryptoServiceProvider.CreateDecryptor==

<source lang="csharp">
/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.IO;
using System.Security;
using System.Security.Cryptography;
using System.Text;
public class CryptoTest
{
public static void Main()
{
Console.Write("Enter phrase to encrypt: ");
string phrase = Console.ReadLine();
MemoryStream memstrm = new MemoryStream();
byte[] Key = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16};
byte[] IV = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16};
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
CryptoStream csw = new CryptoStream(memstrm,
tdes.CreateEncryptor(Key, IV), CryptoStreamMode.Write);
csw.Write(Encoding.ASCII.GetBytes(phrase), 0, phrase.Length);
csw.FlushFinalBlock();
byte[] cryptdata = memstrm.GetBuffer();
Console.WriteLine("Encrypted: {0}",
Encoding.ASCII.GetString(cryptdata, 0, (int)memstrm.Length));
memstrm.Position = 0;
byte[] data = new byte[1024];
CryptoStream csr = new CryptoStream(memstrm,
tdes.CreateDecryptor(Key, IV), CryptoStreamMode.Read);
int recv = csr.Read(data, 0, data.Length);
string newphrase = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine("Decrypted: {0}", newphrase);
csr.Close();
csw.Close();
memstrm.Close();
}
}

</source>

==TripleDESCryptoServiceProvider.CreateEncryptor==

<source lang="csharp">

/*
C# Network Programming
by Richard Blum
Publisher: Sybex
ISBN: 0782141765
*/
using System;
using System.IO;
using System.Security;
using System.Security.Cryptography;
using System.Text;
public class CryptoTest
{
public static void Main()
{
Console.Write("Enter phrase to encrypt: ");
string phrase = Console.ReadLine();
MemoryStream memstrm = new MemoryStream();
byte[] Key = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16};
byte[] IV = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16};
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
CryptoStream csw = new CryptoStream(memstrm,
tdes.CreateEncryptor(Key, IV), CryptoStreamMode.Write);
csw.Write(Encoding.ASCII.GetBytes(phrase), 0, phrase.Length);
csw.FlushFinalBlock();
byte[] cryptdata = memstrm.GetBuffer();
Console.WriteLine("Encrypted: {0}",
Encoding.ASCII.GetString(cryptdata, 0, (int)memstrm.Length));
memstrm.Position = 0;
byte[] data = new byte[1024];
CryptoStream csr = new CryptoStream(memstrm,
tdes.CreateDecryptor(Key, IV), CryptoStreamMode.Read);
int recv = csr.Read(data, 0, data.Length);
string newphrase = Encoding.ASCII.GetString(data, 0, recv);
Console.WriteLine("Decrypted: {0}", newphrase);
csr.Close();
csw.Close();
memstrm.Close();
}
}

</source>

==TripleDESCryptoServiceProvider.IV==

<source lang="csharp">
using System;
using System.IO;
using System.Security.Cryptography;
class MainClass
{
public static void Main()
{
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
FileStream fsKeyIn = File.OpenRead(@"c:\encrypted.key");

BinaryReader br = new BinaryReader(fsKeyIn);
tdes.Key = br.ReadBytes(24);
tdes.IV = br.ReadBytes(8);
FileStream fsIn = File.OpenRead(@"c:\encrypted.txt");
CryptoStream cs = new CryptoStream(fsIn, tdes.CreateDecryptor(),CryptoStreamMode.Read);
StreamReader sr = new StreamReader(cs);
Console.WriteLine(sr.ReadToEnd());
sr.Close();
}
}

</source>

==TripleDESCryptoServiceProvider.Key==

<source lang="csharp">
using System;
using System.IO;
using System.Security.Cryptography;
class MainClass
{
public static void Main()
{
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
FileStream fsKeyIn = File.OpenRead(@"c:\encrypted.key");

BinaryReader br = new BinaryReader(fsKeyIn);
tdes.Key = br.ReadBytes(24);
tdes.IV = br.ReadBytes(8);
FileStream fsIn = File.OpenRead(@"c:\encrypted.txt");
CryptoStream cs = new CryptoStream(fsIn, tdes.CreateDecryptor(),CryptoStreamMode.Read);
StreamReader sr = new StreamReader(cs);
Console.WriteLine(sr.ReadToEnd());
sr.Close();
}
}

</source>

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в 15:31, 26 мая 2010

Admin: 1 версия