// Create an RSAOAEPKeyExchangeDeformatter object with a new RSA key.
// Display its properties to the console.
private void ConstructDeformatter()
{
// Construct an empty OAEP key exchange.
//<Snippet10>
RSAOAEPKeyExchangeDeformatter rsaDeformatter =
new RSAOAEPKeyExchangeDeformatter();
//</Snippet10>
// Create an RSAKey and set it into the specified
// RSAOAEPKeyExchangeFormatter.
//<Snippet11>
RSA key = RSA.Create();
rsaDeformatter.SetKey(key);
//</Snippet11>
Console.WriteLine();
Console.WriteLine("**" + rsaDeformatter.ToString() + "**");
//<Snippet12>
string xmlParameters = rsaDeformatter.Parameters;
//</Snippet12>
Console.WriteLine();
Console.WriteLine("The RSA deformatter has the following ");
Console.WriteLine("parameters:" + xmlParameters);
}
public void Parameters()
{
RSAOAEPKeyExchangeDeformatter keyex = new RSAOAEPKeyExchangeDeformatter(key);
keyex.Parameters = "Mono";
AssertNull("Parameters", keyex.Parameters);
}
// Use the RSAOAEPKeyExchangeDeformatter class to decode the
// specified message.
private string DecodeMessage(byte[] encodedMessage)
{
string decodedMessage = null;
try
{
// Construct a deformatter with the specified RSA key.
//<Snippet8>
RSAOAEPKeyExchangeDeformatter keyDecryptor =
new RSAOAEPKeyExchangeDeformatter(rsaKey);
//</Snippet8>
// Decrypt the encoded message.
//<Snippet9>
byte[] decodedBytes =
keyDecryptor.DecryptKeyExchange(encodedMessage);
//</Snippet9>
// Retrieve a string representation of the decoded message.
decodedMessage = Encoding.ASCII.GetString(decodedBytes);
}
catch (Exception ex)
{
Console.WriteLine("Unexpected exception caught:" + ex.ToString());
}
return(decodedMessage);
}
public void ExchangeTooBig()
{
AsymmetricKeyExchangeDeformatter keyex = new RSAOAEPKeyExchangeDeformatter(key);
byte[] EM = new byte [(key.KeySize >> 3) + 1];
// invalid format
byte[] M = keyex.DecryptKeyExchange(EM);
}
public void Properties()
{
RSAOAEPKeyExchangeDeformatter keyex = new RSAOAEPKeyExchangeDeformatter();
keyex.SetKey(key);
Assertion.AssertNull("RSAOAEPKeyExchangeDeformatter.Parameters", keyex.Parameters);
Assertion.AssertEquals("RSAOAEPKeyExchangeDeformatter.ToString()", "System.Security.Cryptography.RSAOAEPKeyExchangeDeformatter", keyex.ToString());
}
/// <summary>秘密鍵生成</summary>
/// <param name="exchangeKeyOfAlice">Aliceの交換鍵</param>
/// <param name="iv">初期化ベクター</param>
public void GeneratePrivateKey(byte[] exchangeKeyOfAlice, byte[] iv)
{
this._aes = new AesCryptoServiceProvider();
RSAOAEPKeyExchangeDeformatter keyExchangeDeformatter = new RSAOAEPKeyExchangeDeformatter(this._asa);
this._aes.Key = keyExchangeDeformatter.DecryptKeyExchange(exchangeKeyOfAlice);
this._aes.IV = iv;
}
public void Properties()
{
RSAOAEPKeyExchangeDeformatter keyex = new RSAOAEPKeyExchangeDeformatter();
keyex.SetKey(key);
Assert.IsNull(keyex.Parameters, "RSAOAEPKeyExchangeDeformatter.Parameters");
Assert.AreEqual("System.Security.Cryptography.RSAOAEPKeyExchangeDeformatter", keyex.ToString());
}
public static void VerifyDecryptKeyExchangeOaep()
{
using (RSA rsa = RSAFactory.Create())
{
var formatter = new RSAOAEPKeyExchangeFormatter(rsa);
var deformatter = new RSAOAEPKeyExchangeDeformatter(rsa);
VerifyDecryptKeyExchange(formatter, deformatter);
}
}
public static void VerifyDecryptKeyExchangeOaep()
{
using (RSA rsa = RSAFactory.Create())
{
var formatter = new RSAOAEPKeyExchangeFormatter(rsa);
var deformatter = new RSAOAEPKeyExchangeDeformatter(rsa);
VerifyDecryptKeyExchange(formatter, deformatter);
}
}
public byte[] DecryptSessionKeyByRSA(byte[] exchangeData)
{
AsymmetricAlgorithm rsa = algo;
RSAOAEPKeyExchangeDeformatter defor = new RSAOAEPKeyExchangeDeformatter();
defor.SetKey(rsa);
byte[] keySession = defor.DecryptKeyExchange(exchangeData);
return(keySession);
}
public static void VerifyDecryptKeyExchangeOaep()
{
using (RSA rsa = RSAFactory.Create())
{
rsa.ImportParameters(TestData.RSA2048Params);
var formatter = new RSAOAEPKeyExchangeFormatter(rsa);
var deformatter = new RSAOAEPKeyExchangeDeformatter(rsa);
VerifyDecryptKeyExchange(formatter, deformatter);
}
}
public void Bug79320()
{
string s = "hdphq/mn8goBi43YGPkmOfPj5vXjHrKPJkT4mLT3l+XzLttHMLC4/yBYkuzlXtbrl2jtAJRb6oA8UcQFalUMnCa09LDZrgNU2yySn7YbiG8raSq7u2nfDCbPu+c8T9fyHxrCHrX0zeqqImX33csIn6rIrQZ8HKcMsoQso4qtS2A=";
byte [] bytes = Convert.FromBase64String(s);
RSACryptoServiceProvider r = new RSACryptoServiceProvider();
r.FromXmlString("<RSAKeyValue><Modulus>iSObDmmhDgrl4NiLaviFcpv4NdysBWJcqiVz3AQbPdajtXaQQ8VJdfRkixah132yKOFGCWZhHS3EuPMh8dcNwGwta2nh+m2IV6ktzI4+mZ7CSNAsmlDY0JI+H8At1vKvNArlC5jkVGuliYroJeSU/NLPLNYgspi7TtXGy9Rfug8=</Modulus><Exponent>EQ==</Exponent><P>pd4svtxrnTWXVSb151/JFgT9szI6dxQ5pAFPd4A4yuxLLEay2W2z7d9LVk5siMFhZ10uTJGWzNP5pSgLT8wdww==</P><Q>06j6m4cGRc3uoKVuFFGA19JG3Bi4tDBEQHebEc/Y3+eThrOasYIRrQmGUfqWnd9eFitO9GOaVJ0muNDV7NOxxQ==</Q><DP>OoqmYXr4zhLqHg3AM4s36adomZlBz6zJDLUrGx4yKYCTAJFsTL1OkDCxLYUXP1NPjeSm7dkIDA6UWGh8doRGvQ==</DP><DQ>PkDCLb5NI5br1OVcnJBxMGsFyEOBnmiMi2545x8DjSX+Nq1LnZ6555ljvcIsTIz9jgy83nel3KaxCS5dCWtwhQ==</DQ><InverseQ>OrFYaG7wTqim/bub4qY0CvIfhsjG4/4MEabg0UFTf/+tekKas7DDKg2TD5BS2q0O3XEt7xIfp0S6dpOAnrlyGQ==</InverseQ><D>IESc9FUW1iCuj0ICr8IBSCSy3383iMvZkXI5YPHoSskXdf3Hl3m27pPbbAVTQcM4+o9bxfn4u5JMZ8C8sV/G/8Cfl4ss1NVMbZOecvVObRqRpqXaveq5fN2X0EklH1wzm5w3O8cMXdbC/hc0gKUqaMjFVn1zpf3zVjpOkY0eGRE=</D></RSAKeyValue>");
RSAOAEPKeyExchangeDeformatter def = new RSAOAEPKeyExchangeDeformatter(r);
AssertNotNull(def.DecryptKeyExchange(bytes));
}
public static byte[] DecryptKey(byte[] keyData, RSA rsa, bool fOAEP)
{
AsymmetricKeyExchangeDeformatter deformatter = null;
if (fOAEP)
{
deformatter = new RSAOAEPKeyExchangeDeformatter(rsa);
}
else
{
deformatter = new RSAPKCS1KeyExchangeDeformatter(rsa);
}
return(deformatter.DecryptKeyExchange(keyData));
}
public static byte[] Unprotect(byte[] encryptedData, byte[] optionalEntropy, DataProtectionScope scope)
{
if (encryptedData == null)
{
throw new ArgumentNullException("encryptedData");
}
byte[]? decdata = null;
Rijndael aes = Rijndael.Create();
RSA rsa = GetKey(scope);
int headerSize = (rsa.KeySize >> 3);
bool valid1 = (encryptedData.Length >= headerSize);
if (!valid1)
{
headerSize = encryptedData.Length;
}
byte[] header = new byte[headerSize];
Buffer.BlockCopy(encryptedData, 0, header, 0, headerSize);
byte[]? secret = null;
byte[]? key = null;
byte[]? iv = null;
bool valid2 = false;
bool valid3 = false;
bool valid4 = false;
using SHA256 hash = SHA256.Create();
try
{
try
{
RSAOAEPKeyExchangeDeformatter deformatter = new RSAOAEPKeyExchangeDeformatter(rsa);
secret = deformatter.DecryptKeyExchange(header);
valid2 = (secret.Length == 68);
}
catch
{
valid2 = false;
}
if (!valid2)
{
secret = new byte[68];
}
// known values for structure (version 1 or 2)
valid3 = ((secret ![1] == 16) && (secret[18] == 16) && (secret[35] == 32));
public CryptoFacade()
{
string keyContainerName = ConfigurationManager.AppSettings["RSAKeyContainer"];
_RSACrypto = RSACryptoProvider.Get_RSA(keyContainerName);
_AESCrypto = new Cryptography <RijndaelManaged>();
_RSAFormatter = new RSAOAEPKeyExchangeFormatter(_RSACrypto);
_RSADeformatter = new RSAOAEPKeyExchangeDeformatter(_RSACrypto);
string hashSalt = ConfigurationManager.AppSettings["Hash_Salt"];
_SHA256 = new SHA_256();
_SHA256.SetSalt(hashSalt);
}
public static void TestKnownValueOaep()
{
using (RSA rsa = RSAFactory.Create())
{
rsa.ImportParameters(TestData.RSA1024Params);
byte[] encrypted =
( "19134ffba4025a1c651120ca07258a46e005a327c3927f615465060734dc0339114cabfd13803288883abf9329296a3e3a5cb1587927"
+ "a6e8a2e736f0a756e342b4adb0f1de5bba9ba5faee30456fb7409678eb71a70185606eda3303d9425fbeb730ab7803bea50e208b563f"
+ "e9bfa97a8966deefb211a3bd6abe08cd15e0b927").HexToByteArray();
RSAOAEPKeyExchangeDeformatter deformatter = new RSAOAEPKeyExchangeDeformatter(rsa);
byte[] plain = deformatter.DecryptKeyExchange(encrypted);
byte[] expectedPlain = { 0x41, 0x42, 0x43 };
Assert.Equal(expectedPlain, plain);
}
}
public static void TestKnownValueOaep()
{
using (RSA rsa = RSAFactory.Create())
{
rsa.ImportParameters(TestData.RSA1024Params);
byte[] encrypted =
("19134ffba4025a1c651120ca07258a46e005a327c3927f615465060734dc0339114cabfd13803288883abf9329296a3e3a5cb1587927"
+ "a6e8a2e736f0a756e342b4adb0f1de5bba9ba5faee30456fb7409678eb71a70185606eda3303d9425fbeb730ab7803bea50e208b563f"
+ "e9bfa97a8966deefb211a3bd6abe08cd15e0b927").HexToByteArray();
RSAOAEPKeyExchangeDeformatter deformatter = new RSAOAEPKeyExchangeDeformatter(rsa);
byte[] plain = deformatter.DecryptKeyExchange(encrypted);
byte[] expectedPlain = { 0x41, 0x42, 0x43 };
Assert.Equal(expectedPlain, plain);
}
}
public static Boolean Test()
{
Boolean bRes = true;
RSAPKCS1KeyExchangeFormatter pcef1 = new RSAPKCS1KeyExchangeFormatter(RSA.Create());
RSAPKCS1KeyExchangeDeformatter pced1 = new RSAPKCS1KeyExchangeDeformatter(RSA.Create());
Console.WriteLine("pcef1 parameters: " + pcef1.Parameters + "\npced1 parameters: " + pced1.Parameters);
bRes = TestKeyExchange(pcef1, pced1, false) && bRes;
RSA rsa = RSA.Create();
RandomNumberGenerator rng = new RNGCryptoServiceProvider();
RSAPKCS1KeyExchangeFormatter pcef2 = new RSAPKCS1KeyExchangeFormatter();
RSAPKCS1KeyExchangeDeformatter pced2 = new RSAPKCS1KeyExchangeDeformatter(rsa);
RSA rsa1 = RSA.Create();
rsa1.ImportParameters(rsa.ExportParameters(false));
pcef2.SetKey(rsa1);
pcef2.Rng = rng;
pced2.RNG = rng;
Console.WriteLine("pcef2 parameters: " + pcef2.Parameters + "\npced2 parameters: " + pced2.Parameters);
bRes = TestKeyExchange(pcef2, pced2, true) && bRes;
RSAOAEPKeyExchangeFormatter ocef1 = new RSAOAEPKeyExchangeFormatter(RSA.Create());
RSAOAEPKeyExchangeDeformatter oced1 = new RSAOAEPKeyExchangeDeformatter(RSA.Create());
Console.WriteLine("ocef1 parameters: " + ocef1.Parameters + "\noced1 parameters: " + oced1.Parameters);
bRes = TestKeyExchange(ocef1, oced1, false) && bRes;
rsa = RSA.Create();
rng = new RNGCryptoServiceProvider();
RSAOAEPKeyExchangeFormatter ocef2 = new RSAOAEPKeyExchangeFormatter();
RSAOAEPKeyExchangeDeformatter oced2 = new RSAOAEPKeyExchangeDeformatter(rsa);
rsa1 = RSA.Create();
rsa1.ImportParameters(rsa.ExportParameters(false));
ocef2.SetKey(rsa1);
ocef2.Rng = rng;
// oced2.RNG = rng;
Console.WriteLine("ocef2 parameters: " + ocef2.Parameters + "\noced2 parameters: " + oced2.Parameters);
bRes = TestKeyExchange(ocef2, oced2, true) && bRes;
return(bRes);
}
private void DecryptButton_Click(object sender, EventArgs e)
{
RSA myRSAProv;
if (CngKey.Exists(KeyContainerEncryptTextBox.Text))
{
myRSAProv = new RSACng(CngKey.Open(KeyContainerDecryptTextBox.Text));
}
else
{
myRSAProv = new RSACng(CngKey.Create(CngAlgorithm.Rsa, KeyContainerDecryptTextBox.Text));
}
RSAOAEPKeyExchangeDeformatter myKeyFormatter = new RSAOAEPKeyExchangeDeformatter(myRSAProv);
AesCng mySymmProv = new AesCng();
using (FileStream fs = new FileStream(FileDecryptTextBox.Text, FileMode.Open))
{
int keyLength;
byte[] encrKey;
int ivLength;
byte[] IV;
using (BinaryReader br = new BinaryReader(fs))
{
keyLength = br.ReadInt32();
encrKey = new byte[keyLength];
br.Read(encrKey, 0, keyLength);
ivLength = br.ReadInt32();
IV = new byte[ivLength];
br.Read(IV, 0, ivLength);
byte[] Key = myKeyFormatter.DecryptKeyExchange(encrKey);
mySymmProv.Key = Key;
mySymmProv.IV = IV;
using (CryptoStream cs = new CryptoStream(fs, mySymmProv.CreateDecryptor(), CryptoStreamMode.Read))
{
int dataLen = (int)fs.Length - 4 - keyLength - 4 - ivLength;
byte[] data = new byte[dataLen];
int len = cs.Read(data, 0, dataLen);
using (FileStream outStream = File.Open(FileDecryptTextBox.Text.Replace("encrypted", "decrypted"), FileMode.OpenOrCreate))
{
outStream.Write(data, 0, len);
}
}
}
}
MessageBox.Show("Decryption completed.");
}
public void CapiExchangeMin()
{
byte[] M = { 0x01 };
byte[] EM = { 0x4D, 0x5F, 0x26, 0x67, 0x88, 0x07, 0xF1, 0xB5, 0x85, 0x33, 0xDA, 0x8B, 0xD6, 0x9E, 0x9B, 0x56, 0xE6, 0x54, 0x49, 0xF3, 0x4A, 0x8B, 0x5B, 0xB2, 0xCB, 0x10, 0x50, 0x91, 0x85, 0xBC, 0xE1, 0x5E, 0xDC, 0x8A, 0xAE, 0x63, 0xAD, 0x57, 0xC3, 0x03, 0x78, 0xDD, 0xCE, 0xCD, 0x46, 0x71, 0x43, 0x2F, 0x7F, 0xA4, 0x6A, 0x93, 0xE4, 0xB7, 0x4C, 0x36, 0x92, 0x5C, 0xFF, 0xAC, 0x32, 0xE8, 0x71, 0x1E, 0x69, 0xD6, 0x8C, 0xB5, 0x65, 0xA5, 0x83, 0xC2, 0x3F, 0xED, 0x35, 0x6F, 0x03, 0x0D, 0x4B, 0xE1, 0x0F, 0x7B, 0x5D, 0x0A, 0x68, 0x90, 0x71, 0xA0, 0xD6, 0xC0, 0xEC, 0x6B, 0x24, 0x45, 0x3D, 0x9C, 0x11, 0xD9, 0xC8, 0xFB, 0xC8, 0x8F, 0xDB, 0x48, 0x70, 0x1F, 0xC4, 0x7D, 0x83, 0x58, 0x95, 0xDC, 0x36, 0xA0, 0x68, 0xE1, 0xCF, 0x2D, 0xA9, 0x8A, 0xF0, 0xB8, 0xA6, 0x0D, 0x6E, 0xA6, 0x9C, 0xBC };
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
try {
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeDeformatter 1", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void CapiExchange128()
{
byte[] M = { 0xd4, 0x36, 0xe9, 0x95, 0x69, 0xfd, 0x32, 0xa7, 0xc8, 0xa0, 0x5b, 0xbc, 0x90, 0xd3, 0x2c, 0x49 };
byte[] EM = { 0x6D, 0xAA, 0xBC, 0x7C, 0xE7, 0x7C, 0xE6, 0x16, 0x72, 0x6F, 0xBE, 0xAF, 0x26, 0xBF, 0x87, 0x77, 0xB5, 0x47, 0x25, 0x37, 0x01, 0xC7, 0xD8, 0x18, 0xA8, 0x09, 0x0F, 0x1F, 0x13, 0x24, 0xD0, 0x2A, 0xD4, 0xDC, 0x5A, 0x2D, 0x91, 0x6D, 0x11, 0x6C, 0x1A, 0x67, 0xB2, 0xFC, 0xA3, 0xE7, 0xF4, 0xEF, 0xDC, 0xEC, 0xB2, 0xAF, 0x42, 0xB5, 0xD9, 0x7A, 0x6D, 0xE5, 0x76, 0xBA, 0x7D, 0x04, 0xCA, 0x17, 0xB0, 0x06, 0x88, 0x4D, 0xE8, 0xCC, 0x82, 0xEA, 0x13, 0xC8, 0x12, 0x05, 0x05, 0xC6, 0xB0, 0x4B, 0x53, 0x1D, 0x07, 0xFA, 0x09, 0x64, 0x30, 0xCD, 0x5C, 0xE3, 0x41, 0xB1, 0x25, 0x94, 0x05, 0x5A, 0xC2, 0xD8, 0x2E, 0xC4, 0x39, 0x51, 0x73, 0x75, 0x0C, 0x4B, 0x2F, 0x4B, 0xAD, 0x04, 0x54, 0x32, 0x30, 0x94, 0xF4, 0xFE, 0x92, 0xF4, 0xB4, 0x54, 0x07, 0x22, 0xCD, 0xB5, 0xB2, 0x01, 0x95, 0xA0 };
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
try {
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeFormatter 1", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void ExchangeMin()
{
AsymmetricKeyExchangeFormatter keyex = new RSAOAEPKeyExchangeFormatter(key);
byte[] M = { 0x01 };
try {
byte[] EM = keyex.CreateKeyExchange(M);
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeFormatter Min", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void CapiExchange192()
{
byte[] M = { 0xd4, 0x36, 0xe9, 0x95, 0x69, 0xfd, 0x32, 0xa7, 0xc8, 0xa0, 0x5b, 0xbc, 0x90, 0xd3, 0x2c, 0x49, 0x00, 0x00, 0x00, 0x00 };
byte[] EM = { 0x72, 0x0A, 0x0E, 0xA0, 0x8C, 0x40, 0x69, 0x9D, 0x78, 0xBC, 0x94, 0x4B, 0x2C, 0x14, 0xC0, 0xC8, 0x13, 0x8B, 0x6D, 0x2F, 0x01, 0xE3, 0x45, 0x33, 0xE7, 0x9B, 0x87, 0xDB, 0x37, 0xBD, 0xA9, 0x63, 0xCC, 0x94, 0x8F, 0xBB, 0x1D, 0x61, 0xA1, 0x5E, 0x6A, 0x33, 0xBD, 0xD5, 0xC8, 0x22, 0x40, 0xB1, 0x32, 0xFB, 0x6F, 0x2A, 0x3B, 0x8A, 0x15, 0x4E, 0xC1, 0x25, 0xF0, 0x34, 0x17, 0x9A, 0x68, 0x34, 0x27, 0x5B, 0x49, 0xC5, 0xEA, 0x4D, 0x7F, 0x07, 0x4C, 0xAC, 0xF8, 0xE3, 0xD7, 0x9E, 0x72, 0xB0, 0xD1, 0xAD, 0x9E, 0x9C, 0xBB, 0xC6, 0x79, 0x14, 0x63, 0x5E, 0x13, 0xD1, 0x02, 0xDE, 0x57, 0xB5, 0xBC, 0x57, 0x68, 0xAC, 0xE3, 0xEF, 0x79, 0xED, 0xAF, 0xC0, 0xBB, 0xFE, 0xB3, 0xA6, 0x4C, 0xE8, 0x79, 0xE2, 0x3A, 0xB3, 0x37, 0x97, 0x90, 0x05, 0xCF, 0xB9, 0x1A, 0x92, 0xEC, 0x73, 0xC5, 0x8D };
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
try {
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeFormatter 1", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void Exchange128()
{
AsymmetricKeyExchangeFormatter keyex = new RSAOAEPKeyExchangeFormatter(key);
byte[] M = { 0xd4, 0x36, 0xe9, 0x95, 0x69, 0xfd, 0x32, 0xa7, 0xc8, 0xa0, 0x5b, 0xbc, 0x90, 0xd3, 0x2c, 0x49 };
try {
byte[] EM = keyex.CreateKeyExchange(M, typeof(Rijndael));
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeFormatter 128", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void MonoExchangeMax()
{
byte[] M = new byte [(key.KeySize >> 3) - 2 * 20 - 2];
byte[] EM = { 0x6C, 0x3E, 0x71, 0x14, 0xAD, 0xDE, 0x46, 0x26, 0x42, 0xA8, 0x84, 0x40, 0xCC, 0x06, 0x73, 0xCC, 0x88, 0x76, 0x40, 0x08, 0x93, 0xE5, 0x5F, 0xFF, 0x7D, 0x02, 0x88, 0xE9, 0x2D, 0xF6, 0x90, 0xA1, 0x8F, 0x64, 0x9A, 0x79, 0x67, 0x63, 0xA5, 0xBE, 0xCE, 0x7F, 0x48, 0x65, 0x8F, 0x53, 0x24, 0x70, 0x4F, 0x2A, 0x61, 0x7C, 0x95, 0xB6, 0xD0, 0x1D, 0x6F, 0x92, 0xA5, 0x2B, 0xB9, 0x13, 0x6B, 0xD2, 0xEB, 0x1D, 0x4F, 0x1E, 0x51, 0x6D, 0x65, 0xA6, 0x97, 0xE8, 0x60, 0x4B, 0x19, 0xE4, 0x23, 0xDC, 0x22, 0xED, 0x23, 0x02, 0x5E, 0x0C, 0x0B, 0x99, 0x5D, 0xBA, 0xFC, 0xBD, 0x75, 0x2F, 0x3E, 0xCD, 0x33, 0xBF, 0x08, 0xD5, 0x31, 0x68, 0x7C, 0x51, 0x2E, 0xBF, 0x8A, 0xBF, 0xA9, 0x8F, 0x0A, 0xDF, 0xB0, 0x91, 0xB1, 0x95, 0x03, 0x37, 0x3C, 0x77, 0x61, 0x75, 0x06, 0x61, 0xD8, 0x94, 0x04, 0x42 };
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
try {
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeFormatter Max", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void MonoExchange192()
{
byte[] M = { 0xd4, 0x36, 0xe9, 0x95, 0x69, 0xfd, 0x32, 0xa7, 0xc8, 0xa0, 0x5b, 0xbc, 0x90, 0xd3, 0x2c, 0x49, 0x00, 0x00, 0x00, 0x00 };
byte[] EM = { 0xAD, 0xFA, 0x95, 0x2E, 0xCE, 0x23, 0xBE, 0xA5, 0x77, 0x81, 0x34, 0x98, 0x64, 0x58, 0x02, 0xAB, 0x62, 0x28, 0x97, 0x84, 0x6D, 0xF3, 0xE1, 0x9D, 0xB2, 0x04, 0xA8, 0xB0, 0x1D, 0x48, 0xFC, 0x94, 0x1A, 0x3A, 0xB1, 0x72, 0x39, 0xE1, 0xFE, 0x25, 0xF6, 0x6E, 0x64, 0xA5, 0x84, 0xA3, 0x2F, 0x3D, 0x49, 0x4F, 0x7F, 0xD1, 0x45, 0x74, 0xFB, 0x42, 0x6F, 0x50, 0x5C, 0x19, 0x44, 0xB8, 0x0F, 0x3B, 0x31, 0x94, 0x8E, 0xC2, 0x44, 0x47, 0xA2, 0xE9, 0x6E, 0x7F, 0x58, 0x49, 0x38, 0xB9, 0x2C, 0xB8, 0x0E, 0xA9, 0x7A, 0x86, 0x2B, 0xDB, 0xED, 0x5A, 0x16, 0x48, 0x41, 0x84, 0x3B, 0xE3, 0xA8, 0x26, 0x01, 0xAE, 0x09, 0x41, 0xB3, 0x95, 0xC5, 0xA4, 0x5A, 0x82, 0xC3, 0x37, 0x57, 0xD9, 0x03, 0x53, 0x8D, 0x28, 0x24, 0xA4, 0x37, 0x2A, 0xA9, 0xC7, 0x66, 0xAD, 0xAC, 0x5F, 0x3A, 0xF0, 0xE5, 0x90 };
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
try {
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeFormatter 192", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void MonoExchange128()
{
byte[] M = { 0xd4, 0x36, 0xe9, 0x95, 0x69, 0xfd, 0x32, 0xa7, 0xc8, 0xa0, 0x5b, 0xbc, 0x90, 0xd3, 0x2c, 0x49 };
byte[] EM = { 0x3A, 0x18, 0xE7, 0xF7, 0x45, 0x32, 0x5B, 0x60, 0x46, 0x2A, 0x20, 0x1A, 0x69, 0x98, 0x84, 0x68, 0x76, 0xC0, 0x01, 0x7D, 0x37, 0xE7, 0xEB, 0x72, 0x18, 0xD7, 0xF3, 0xE5, 0x1B, 0x2C, 0xB2, 0x47, 0x86, 0x9D, 0x90, 0xE8, 0x38, 0x43, 0x0C, 0x58, 0x59, 0xDB, 0x2A, 0x46, 0xBA, 0x15, 0xD9, 0x79, 0x77, 0xB5, 0x8B, 0xA7, 0x06, 0x15, 0xE1, 0xBF, 0xA2, 0xA7, 0x69, 0xC6, 0x6A, 0x6C, 0x4F, 0x87, 0xA3, 0xA1, 0xBC, 0x21, 0x46, 0x68, 0x61, 0xEC, 0x1E, 0xE1, 0x2B, 0xEF, 0xD7, 0xE0, 0x61, 0xAF, 0xF5, 0xDA, 0x27, 0xCB, 0xFC, 0x98, 0x0C, 0x12, 0x59, 0x45, 0x64, 0x75, 0x58, 0xB5, 0x5B, 0x7A, 0x9B, 0x76, 0x68, 0x14, 0x9F, 0xAB, 0x64, 0xC7, 0x4E, 0xB7, 0xFF, 0x7D, 0x3D, 0xA3, 0x11, 0x9E, 0xE8, 0x06, 0xAF, 0x5D, 0xA3, 0xEB, 0x8E, 0x1E, 0x38, 0x5D, 0x0D, 0xC3, 0x8C, 0xC3, 0xF0, 0x57 };
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
try {
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeFormatter 128", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void MonoExchangeMin()
{
byte[] M = { 0x01 };
byte[] EM = { 0x75, 0x06, 0x33, 0xB4, 0x47, 0xDB, 0x9C, 0x72, 0x1A, 0x09, 0x48, 0xEA, 0xF3, 0xED, 0xCF, 0xA7, 0x6D, 0x09, 0x8E, 0xF5, 0xC9, 0x70, 0x18, 0xF7, 0x22, 0xCC, 0xEC, 0xCB, 0xD3, 0x2B, 0xE7, 0xE3, 0x0A, 0x47, 0xF4, 0xE1, 0x66, 0x73, 0xEA, 0x7F, 0x5B, 0x27, 0x32, 0x62, 0x9D, 0x0C, 0x2F, 0x88, 0x2E, 0x3A, 0x37, 0x6C, 0x0C, 0x09, 0x1D, 0xF3, 0xE1, 0x80, 0x66, 0x26, 0x29, 0x97, 0x3D, 0xB7, 0xE6, 0x01, 0xD0, 0x88, 0x9C, 0x68, 0x3F, 0x62, 0x7C, 0x71, 0x36, 0xDA, 0xC3, 0xE2, 0x93, 0x20, 0x95, 0xF8, 0x15, 0x89, 0x73, 0x24, 0xDF, 0xFB, 0x72, 0xD9, 0x63, 0x19, 0x84, 0x41, 0x92, 0x3C, 0x71, 0x36, 0xB9, 0x09, 0x24, 0xD6, 0x8E, 0x2D, 0x5A, 0xF2, 0x4B, 0xF4, 0xCD, 0x58, 0xEB, 0x4E, 0xE4, 0x97, 0xB3, 0x09, 0xED, 0xCF, 0x6A, 0x6D, 0xBC, 0xE4, 0xD4, 0x8D, 0xEC, 0xA6, 0x35, 0x53 };
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
try {
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeDeformatter Min", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
public void CapiExchangeMax()
{
byte[] M = new byte [(key.KeySize >> 3) - 2 * 20 - 2];
byte[] EM = { 0x45, 0x31, 0xA7, 0x4A, 0xE5, 0x8B, 0xC7, 0x0C, 0x5C, 0x8B, 0xE6, 0xAB, 0xC5, 0x99, 0xF3, 0x31, 0xB9, 0x64, 0xFA, 0x19, 0x4A, 0x41, 0xF3, 0x49, 0x05, 0x0B, 0x28, 0xD5, 0x96, 0x43, 0x0E, 0xEB, 0x62, 0x0B, 0x22, 0xFE, 0x5F, 0x92, 0x4F, 0x60, 0xB9, 0xAE, 0x7F, 0xAA, 0xC8, 0x82, 0x66, 0xD7, 0x19, 0xCF, 0xC0, 0x69, 0x1C, 0xAA, 0x7E, 0x95, 0x5D, 0x70, 0x3D, 0x4A, 0x1D, 0x3B, 0x55, 0xBC, 0x7D, 0x36, 0xCF, 0x98, 0x09, 0xF8, 0x20, 0x92, 0x34, 0x79, 0x0B, 0x1A, 0x91, 0xE5, 0xFB, 0x94, 0xAD, 0x2A, 0x15, 0x6E, 0x3D, 0xF4, 0xA5, 0x6F, 0x6B, 0xAE, 0x77, 0x80, 0x3C, 0xF5, 0xCC, 0x84, 0x3A, 0xF9, 0xCE, 0x9F, 0x06, 0xF6, 0xCC, 0xA8, 0x75, 0xE1, 0x55, 0x56, 0xA5, 0x76, 0x50, 0x28, 0xA7, 0x3E, 0x91, 0x11, 0x5C, 0x82, 0x7C, 0x1A, 0x92, 0x02, 0x74, 0xCC, 0xA9, 0x6C, 0xFC, 0xA4 };
AsymmetricKeyExchangeDeformatter keyback = new RSAOAEPKeyExchangeDeformatter(key);
try {
byte[] Mback = keyback.DecryptKeyExchange(EM);
AssertEquals("RSAOAEPKeyExchangeFormatter 1", M, Mback);
}
catch (CryptographicException ce) {
// not supported by every version of Windows - Minimum: Windows XP
Console.WriteLine(ce.Message + " (" + Environment.OSVersion.ToString() + ")");
}
}
/// <inheritdoc />
protected internal override byte[] Decrypt(byte[] data, byte[] iv)
{
#if NETCOREAPP1_0
switch (this.algorithm)
{
case AsymmetricAlgorithm.RsaPkcs1:
return(this.Rsa.Decrypt(data, RSAEncryptionPadding.Pkcs1));
case AsymmetricAlgorithm.RsaOaepSha1:
return(this.Rsa.Decrypt(data, RSAEncryptionPadding.OaepSHA1));
case AsymmetricAlgorithm.RsaOaepSha256:
return(this.Rsa.Decrypt(data, RSAEncryptionPadding.OaepSHA256));
case AsymmetricAlgorithm.RsaOaepSha384:
return(this.Rsa.Decrypt(data, RSAEncryptionPadding.OaepSHA384));
case AsymmetricAlgorithm.RsaOaepSha512:
return(this.Rsa.Decrypt(data, RSAEncryptionPadding.OaepSHA512));
default:
throw new PlatformNotSupportedException();
}
#else
AsymmetricKeyExchangeDeformatter keyExchange;
switch (this.Algorithm)
{
case AsymmetricAlgorithm.RsaOaepSha1:
case AsymmetricAlgorithm.RsaOaepSha256:
case AsymmetricAlgorithm.RsaOaepSha384:
case AsymmetricAlgorithm.RsaOaepSha512:
keyExchange = new RSAOAEPKeyExchangeDeformatter(this.Rsa);
break;
case AsymmetricAlgorithm.RsaPkcs1:
keyExchange = new RSAPKCS1KeyExchangeDeformatter(this.Rsa);
break;
default:
throw new NotSupportedException();
}
return(keyExchange.DecryptKeyExchange(data));
#endif
}
public static Boolean Test()
{
Boolean bRes = true;
RSAPKCS1KeyExchangeFormatter pcef1 = new RSAPKCS1KeyExchangeFormatter(RSA.Create());
RSAPKCS1KeyExchangeDeformatter pced1 = new RSAPKCS1KeyExchangeDeformatter(RSA.Create());
Console.WriteLine("pcef1 parameters: " + pcef1.Parameters + "\npced1 parameters: " + pced1.Parameters);
bRes = TestKeyExchange(pcef1, pced1, false) && bRes;
RSA rsa = RSA.Create();
RandomNumberGenerator rng = new RNGCryptoServiceProvider();
RSAPKCS1KeyExchangeFormatter pcef2 = new RSAPKCS1KeyExchangeFormatter();
RSAPKCS1KeyExchangeDeformatter pced2 = new RSAPKCS1KeyExchangeDeformatter(rsa);
RSA rsa1 = RSA.Create();
rsa1.ImportParameters(rsa.ExportParameters(false));
pcef2.SetKey(rsa1);
pcef2.Rng = rng;
pced2.RNG = rng;
Console.WriteLine("pcef2 parameters: " + pcef2.Parameters + "\npced2 parameters: " + pced2.Parameters);
bRes = TestKeyExchange(pcef2, pced2, true) && bRes;
RSAOAEPKeyExchangeFormatter ocef1 = new RSAOAEPKeyExchangeFormatter(RSA.Create());
RSAOAEPKeyExchangeDeformatter oced1 = new RSAOAEPKeyExchangeDeformatter(RSA.Create());
Console.WriteLine("ocef1 parameters: " + ocef1.Parameters + "\noced1 parameters: " + oced1.Parameters);
bRes = TestKeyExchange(ocef1, oced1, false) && bRes;
rsa = RSA.Create();
rng = new RNGCryptoServiceProvider();
RSAOAEPKeyExchangeFormatter ocef2 = new RSAOAEPKeyExchangeFormatter();
RSAOAEPKeyExchangeDeformatter oced2 = new RSAOAEPKeyExchangeDeformatter(rsa);
rsa1 = RSA.Create();
rsa1.ImportParameters(rsa.ExportParameters(false));
ocef2.SetKey(rsa1);
ocef2.Rng = rng;
// oced2.RNG = rng;
Console.WriteLine("ocef2 parameters: " + ocef2.Parameters + "\noced2 parameters: " + oced2.Parameters);
bRes = TestKeyExchange(ocef2, oced2, true) && bRes;
return bRes;
}
public static byte[] DecryptKey(byte[] keyData, RSA rsa, bool useOAEP)
{
if (keyData == null)
{
throw new ArgumentNullException("keyData");
}
if (rsa == null)
{
throw new ArgumentNullException("rsa");
}
if (useOAEP)
{
RSAOAEPKeyExchangeDeformatter deformatter = new RSAOAEPKeyExchangeDeformatter(rsa);
return(deformatter.DecryptKeyExchange(keyData));
}
RSAPKCS1KeyExchangeDeformatter deformatter2 = new RSAPKCS1KeyExchangeDeformatter(rsa);
return(deformatter2.DecryptKeyExchange(keyData));
}
public byte[] Decrypt(byte[] rgb, bool fOAEP)
{
if (m_disposed)
{
throw new ObjectDisposedException("rsa");
}
// choose between OAEP or PKCS#1 v.1.5 padding
AsymmetricKeyExchangeDeformatter def = null;
if (fOAEP)
{
def = new RSAOAEPKeyExchangeDeformatter(rsa);
}
else
{
def = new RSAPKCS1KeyExchangeDeformatter(rsa);
}
return(def.DecryptKeyExchange(rgb));
}
