public static void decryptFile(int p, int q, int sizeOfBlock, string iFileName, string oFileName)
{
var blocks = SplitFile.GetBlocksFromFile(iFileName, sizeOfBlock, false);
List <BigInteger> newBlocks = new List <BigInteger>();
for (int i = 0; i < blocks.Length; i++)
{
var c = blocks[i];
var m = decrypt(p, q, c.IntValue());
//newBlocks.Add(m);
}
SplitFile.WriteBlocksToFile(oFileName, newBlocks.ToArray(), sizeOfBlock, true);
}
public static void cryptFile(int p, int q, int sizeOfBlock, string iFileName, string oFileName)
{
int n = p * q;
var blocks = SplitFile.GetBlocksFromFile(iFileName, sizeOfBlock, true);
List <BigInteger> newBlocks = new List <BigInteger>();
foreach (var m in blocks)
{
newBlocks.Add(crypt(n, m.IntValue()));
}
SplitFile.WriteBlocksToFile(oFileName, newBlocks.ToArray(), sizeOfBlock, false);
}
public static void decryptFile(BigInteger p, BigInteger x, int sizeOfBlock, string iFileName, string oFileName)
{
var blocks = SplitFile.GetBlocksFromFile(iFileName, sizeOfBlock * 2, false);
List <BigInteger> newBlocks = new List <BigInteger>();
for (int i = 0; i < blocks.Length; i += 2)
{
var a = blocks[i];
var b = blocks[i + 1];
BigInteger m = decrypt(p, x, a, b);
newBlocks.Add(m);
}
SplitFile.WriteBlocksToFile(oFileName, newBlocks.ToArray(), sizeOfBlock, true);
}
public static void TestSplitFile()
{
//string fileName1 = @"C:\Users\Vladimir\Desktop\Новая папка\Новый текстовый документ (1).txt";
string fileName1 = @"C:\Users\Vladimir\Desktop\Новая папка\08140-Kurukafa.jpg";
string fileName2 = @"C:\Users\Vladimir\Desktop\Новая папка\Новый текстовый документ (2).txt";
//string fileName3 = @"C:\Users\Vladimir\Desktop\Новая папка\Новый текстовый документ (3).txt";
string fileName3 = @"C:\Users\Vladimir\Desktop\Новая папка\result.jpg";
int bytesInBlock = 128;
var bytes1 = SplitFile.GetBlocksFromFile(fileName1, bytesInBlock, true);
SplitFile.WriteBlocksToFile(fileName2, bytes1, bytesInBlock, false);
var bytes2 = SplitFile.GetBlocksFromFile(fileName2, bytesInBlock, false);
SplitFile.WriteBlocksToFile(fileName3, bytes2, bytesInBlock, true);
}
public static void cryptFile(BigInteger p, BigInteger g, BigInteger x, int sizeOfBlock, string iFileName, string oFileName)
{
long i = 0;
var y = g.modPow(x, p);
var blocks = SplitFile.GetBlocksFromFile(iFileName, sizeOfBlock, true);
List <BigInteger> newBlocks = new List <BigInteger>();
foreach (var m in blocks)
{
BigInteger k = (Rand() % (p - 1) + 1);
BigInteger a;
BigInteger b;
crypt(p, g, y, m, out a, out b);
newBlocks.Add(a);
newBlocks.Add(b);
}
SplitFile.WriteBlocksToFile(oFileName, newBlocks.ToArray(), sizeOfBlock * 2, false);
}
