// Тест метод за успешна RSA декрипција со јавен клуч
public string Decrypt(EncryptedPacket encryptedBlock)
{
var rsa = (RSACryptoServiceProvider)_certForUJP.PrivateKey;
var privateKey = rsa.ExportParameters(true);
var rsaParams = new RsaWithRsaParameterKey {
PrivateKey = privateKey
};
var decrypted = _hybrid.DecryptData(encryptedBlock, rsaParams);
return(Encoding.UTF8.GetString(decrypted));
}
public string DecryptSoapBody(byte[] encryptedData, byte[] sessionKey, byte[] iVector, RsaWithRsaParameterKey rsaParams)
{
var encryptedBlock = new EncryptedPacket();
encryptedBlock.EncryptedData = encryptedData;
encryptedBlock.EncryptedSessionKey = sessionKey;
encryptedBlock.Iv = iVector;
encryptedBlock.RsaParams = rsaParams;
var hybrid = new HybridEncryption();
var decrpyted = hybrid.DecryptData(encryptedBlock, encryptedBlock.RsaParams);
var decryptedString = Encoding.UTF8.GetString(decrpyted);
return(decryptedString);
}
private static void TestHybrid()
{
const string original = "Very secret and important information that must not fall in the hands of the enemy.";
var rsaParams = new RSAWithRSAParameterKey();
rsaParams.AssignNewKey();
var hybrid = new HybridEncryption();
var encryptedBlock = hybrid.EncryptData(Encoding.UTF8.GetBytes(original), rsaParams);
var decryptedBlock = hybrid.DecryptData(encryptedBlock, rsaParams);
Console.WriteLine($"Original Message: {original}");
Console.WriteLine($"Encrypted Block Data: {Convert.ToBase64String(encryptedBlock.EncryptedData)}");
Console.WriteLine($"Decrypted Block: {Convert.ToBase64String(decryptedBlock)}");
Console.WriteLine($"Decrypted Message: {Encoding.UTF8.GetString(decryptedBlock)}");
}
public void HybridEncryption_Test_Pass()
{
const string expected = "Very secret and important information that can not fall into the wrong hands.";
using (var encryption = new HybridEncryption())
{
(RSAParameters, RSAParameters)encryptionKeys = new Helpers().GenerateRSAKeys();
(RSAParameters, RSAParameters)signingnKeys = new Helpers().GenerateRSAKeys();
var encryptedBlock = encryption.EncryptData(Encoding.UTF8.GetBytes(expected), encryptionKeys.Item1, signingnKeys.Item2);
var decrypted = encryption.DecryptData(encryptedBlock, encryptionKeys.Item2, signingnKeys.Item1);
string actual = Encoding.UTF8.GetString(decrypted);
string encryptedAsString = Encoding.UTF8.GetString(encryptedBlock.EncryptedData);
Assert.AreEqual(expected, actual);
Assert.AreNotEqual(expected, encryptedAsString);
}
}
static void Main(string[] args)
{
const string original = "Very secret and important information that can not fall into the wrong hands.";
var rsaParams = new RsaWithRsaParameterKey();
rsaParams.AssignNewKey();
var hybrid = new HybridEncryption();
var encryptedBlock = hybrid.EncryptData(Encoding.UTF8.GetBytes(original), rsaParams);
var decrpyted = hybrid.DecryptData(encryptedBlock, rsaParams);
Console.WriteLine("Hybrid Encryption Demonstration in .NET");
Console.WriteLine("---------------------------------------");
Console.WriteLine();
Console.WriteLine("Original Message = " + original);
Console.WriteLine();
Console.WriteLine("Message After Decryption = " + Encoding.UTF8.GetString(decrpyted));
Console.ReadLine();
}
static void Main()
{
//const string original = "Very secret and important information that can not fall into the wrong hands.";
//string original = new String('0', 127);
string original = "abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrs";
original = GenerateRandomText();
//string original = "abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890abcdefghijklmnopqrstuvwxyz1234567890";
//string original = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nam non dictum diam. Donec feugiat libero sed arcu interdum consectetur vitae amet.";
//string original = @"?=??Y@쳘?{?? &긳 ? v ? ";
var hybrid = new HybridEncryption();
var rsaParams = new RSAWithRSAParameterKey();
rsaParams.ImportKeys();
var digitalSignature = new DigitalSignature();
digitalSignature.AssignNewKey();
Console.WriteLine("Hybrid Encryption with Integrity Check Demonstration in .NET");
Console.WriteLine("------------------------------------------------------------");
Console.WriteLine();
try
{
var originalData = Encoding.UTF8.GetBytes(original);
byte[] compressedBytes = Compress(originalData);
byte[] decompressedBytes = Decompress(compressedBytes);
var encryptedBlock = hybrid.EncryptData(
originalData, rsaParams, digitalSignature);
var decrpyted = hybrid.DecryptData(encryptedBlock, rsaParams, digitalSignature);
//byte[] gzippedBytes = GetGZippedBytes(encryptedBlock.EncryptedData);
//byte[] ungzippedBytes = GetUnGZippedBytes(gzippedBytes);
byte[] gzippedBytes = Compress(encryptedBlock.EncryptedData);
byte[] ungzippedBytes = Decompress(gzippedBytes);
Console.WriteLine("Original Message = " + original);
Console.WriteLine("Original Message Length: {0}", original.Length);
Console.WriteLine("Compressed Original Message = " + Convert.ToBase64String(compressedBytes));
Console.WriteLine("Compressed Original Message Length: {0}", compressedBytes.Length);
Console.WriteLine("DeCompressed Original Message = " + Convert.ToBase64String(decompressedBytes));
Console.WriteLine("DeCompressed Original Message Length: {0}", decompressedBytes.Length);
Console.WriteLine("Encrypted Data: {0}", Convert.ToBase64String(encryptedBlock.EncryptedData));
Console.WriteLine("Encrypted Data Size: {0}", encryptedBlock.EncryptedData.Length);
Console.WriteLine("GZipped Encrypted Data: {0}", Convert.ToBase64String(gzippedBytes));
Console.WriteLine("GZipped Encrypted Data Size: {0}", gzippedBytes.Length);
Console.WriteLine("UnGZipped Encrypted Data: {0}", Convert.ToBase64String(ungzippedBytes));
Console.WriteLine("UnGZipped Encrypted Data Size: {0}", ungzippedBytes.Length);
Console.WriteLine();
Console.WriteLine("Message After Decryption = " + Encoding.UTF8.GetString(decrpyted));
}
catch (CryptographicException ex)
{
Console.WriteLine("Error : " + ex.Message);
}
Console.ReadLine();
}