/// <summary>
/// Reads the contents of the file.
/// </summary>
/// <param name="content">The content of the file downloaded</param>
/// <returns>Decrypted content of the file</returns>
protected override String ReadContent(Byte[] content)
{
CIRegistry registry = new CIRegistry();
String secureKey = registry.ReadSecureKey();
RijndaelManaged crypto = new RijndaelManaged();
Rfc2898DeriveBytes derivedBytes = new Rfc2898DeriveBytes(registry.ReadSecureKey(), new Byte[] { 90, 32, 230, 20, 59, 78, 112, 183 });
Byte[] key = derivedBytes.GetBytes(crypto.KeySize / 8);
Byte[] iv = derivedBytes.GetBytes(crypto.BlockSize / 8);
using (MemoryStream ms = new MemoryStream(content))
using (CryptoStream cs = new CryptoStream(ms, crypto.CreateDecryptor(key, iv), CryptoStreamMode.Read))
using (MemoryStream msOut = new MemoryStream())
{
Int32 buffer;
while ((buffer = cs.ReadByte()) != -1)
{
msOut.WriteByte((Byte)buffer);
}
msOut.Flush();
return(Encoding.Default.GetString(msOut.ToArray()));
}
}
/// <summary>
/// Reads the contents of the file.
/// </summary>
/// <param name="content">The content of the file downloaded</param>
/// <returns>Decrypted content of the file</returns>
protected override String ReadContent(Byte[] content)
{
CIRegistry registry = new CIRegistry();
String secureKey = registry.ReadSecureKey();
RijndaelManaged crypto = new RijndaelManaged();
Rfc2898DeriveBytes derivedBytes = new Rfc2898DeriveBytes(registry.ReadSecureKey(), new Byte[] { 90, 32, 230, 20, 59, 78, 112, 183 });
Byte[] key = derivedBytes.GetBytes(crypto.KeySize / 8);
Byte[] iv = derivedBytes.GetBytes(crypto.BlockSize / 8);
using(MemoryStream ms = new MemoryStream(content))
using(CryptoStream cs = new CryptoStream(ms, crypto.CreateDecryptor(key, iv), CryptoStreamMode.Read))
using (MemoryStream msOut = new MemoryStream())
{
Int32 buffer;
while ((buffer = cs.ReadByte()) != -1)
msOut.WriteByte((Byte)buffer);
msOut.Flush();
return Encoding.Default.GetString(msOut.ToArray());
}
}
/// <summary>
/// Encrypts the file.
/// </summary>
/// <param name="inputFile">The input file.</param>
/// <param name="outputFile">The output file.</param>
private static void EncryptFile(String inputFile, String outputFile)
{
CIRegistry registry = new CIRegistry();
RijndaelManaged crypto = new RijndaelManaged();
Rfc2898DeriveBytes derivedBytes = new Rfc2898DeriveBytes(registry.ReadSecureKey(), new Byte[] { 90, 32, 230, 20, 59, 78, 112, 183 });
Byte[] key = derivedBytes.GetBytes(crypto.KeySize / 8);
Byte[] iv = derivedBytes.GetBytes(crypto.BlockSize / 8);
Byte[] buffer = null;
using (FileStream inFile = new FileStream(inputFile, FileMode.Open))
{
buffer = new Byte[inFile.Length];
inFile.Read(buffer, 0, buffer.Length);
}
using(FileStream outFile = new FileStream(outputFile, FileMode.Create))
using(CryptoStream cs = new CryptoStream(outFile, crypto.CreateEncryptor(key, iv), CryptoStreamMode.Write))
{
cs.Write(buffer, 0, buffer.Length);
}
}
/// <summary>
/// Encrypts the file.
/// </summary>
/// <param name="inputFile">The input file.</param>
/// <param name="outputFile">The output file.</param>
private static void EncryptFile(String inputFile, String outputFile)
{
CIRegistry registry = new CIRegistry();
RijndaelManaged crypto = new RijndaelManaged();
Rfc2898DeriveBytes derivedBytes = new Rfc2898DeriveBytes(registry.ReadSecureKey(), new Byte[] { 90, 32, 230, 20, 59, 78, 112, 183 });
Byte[] key = derivedBytes.GetBytes(crypto.KeySize / 8);
Byte[] iv = derivedBytes.GetBytes(crypto.BlockSize / 8);
Byte[] buffer = null;
using (FileStream inFile = new FileStream(inputFile, FileMode.Open))
{
buffer = new Byte[inFile.Length];
inFile.Read(buffer, 0, buffer.Length);
}
using (FileStream outFile = new FileStream(outputFile, FileMode.Create))
using (CryptoStream cs = new CryptoStream(outFile, crypto.CreateEncryptor(key, iv), CryptoStreamMode.Write))
{
cs.Write(buffer, 0, buffer.Length);
}
}
