public static Secret HybridEncrypt
(
RSACryptoServiceProvider encryptorPrivateKeyPfxProvider
, X509Certificate2 encryptorPublicKeyCer
, RSACryptoServiceProvider decryptorPublicKeyCerProvider
, HashSignatureMode signHashMode
, bool DoOAEPadding
, byte[] data
)
{
Secret secret = new Secret();
using (TripleDESCryptoServiceProvider provider = new TripleDESCryptoServiceProvider())
{
provider.GenerateIV();
secret.EncryptorSharedEncryptedOnceIV = provider.IV;
provider.GenerateKey();
secret.EncryptorSharedEncryptedOnceKey = provider.Key;
secret.EncryptedData = provider.CreateEncryptor().TransformFinalBlock(data, 0, data.Length);
}
secret.EncryptorSharedEncryptedOnceIV = decryptorPublicKeyCerProvider.Encrypt(secret.EncryptorSharedEncryptedOnceIV, DoOAEPadding);
secret.EncryptorSharedEncryptedOnceKey = decryptorPublicKeyCerProvider.Encrypt(secret.EncryptorSharedEncryptedOnceKey, DoOAEPadding);
HashAlgorithm hashAlgorithm;
if (signHashMode == HashSignatureMode.SHA1)
{
hashAlgorithm = new SHA1CryptoServiceProvider();
}
else //(hashSignatureMode == HashSignatureMode.MD5)
{
hashAlgorithm = new MD5CryptoServiceProvider();
}
MemoryStream stream = new MemoryStream();
byte[] buffer = secret.EncryptorSharedEncryptedOnceIV;
stream.Write(buffer, 0, buffer.Length);
buffer = secret.EncryptorSharedEncryptedOnceKey;
stream.Write(buffer, 0, buffer.Length);
buffer = secret.EncryptedData;
stream.Position = 0;
buffer = hashAlgorithm.ComputeHash(stream);
stream.Close();
stream.Dispose();
secret.EncryptorHashSignature
= encryptorPrivateKeyPfxProvider
.SignHash
(
buffer
, Enum.GetName
(
signHashMode.GetType()
, signHashMode
)
);
secret.EncryptorPublicKeyCerRawData = encryptorPublicKeyCer.RawData;
secret.SignHashMode = signHashMode;
secret.DoOAEPadding = DoOAEPadding;
return(secret);
}
public static Secret HybridEncrypt
(
string encryptorPrivateKeyPfxFileName
, string encryptorPublicKeyCerFileName
, string decryptorPublicKeyCerFileName
, HashSignatureMode hashSignatureMode
, bool DoOAEPadding
, byte[] data
)
{
X509Certificate2 encryptorPrivateKeyPfx = null;
X509Certificate2 encryptorPublicKeyCer = null;
X509Certificate2 decryptorPublicKeyCer = null;
try
{
encryptorPrivateKeyPfx = new X509Certificate2(encryptorPrivateKeyPfxFileName);
encryptorPublicKeyCer = new X509Certificate2(encryptorPublicKeyCerFileName);
decryptorPublicKeyCer = new X509Certificate2(decryptorPublicKeyCerFileName);
return(HybridEncrypt
(
encryptorPrivateKeyPfx
, encryptorPublicKeyCer
, decryptorPublicKeyCer
, hashSignatureMode
, DoOAEPadding
, data
));
}
catch
{
return(null);
}
finally
{
if (encryptorPrivateKeyPfx != null)
{
encryptorPrivateKeyPfx.Reset();
}
if (encryptorPublicKeyCer != null)
{
encryptorPublicKeyCer.Reset();
}
if (decryptorPublicKeyCer != null)
{
decryptorPublicKeyCer.Reset();
}
}
}
public static Secret HybridEncrypt
(
byte[] encryptorPrivateKeyPfxRawData
, byte[] encryptorPublicKeyCerRawData
, byte[] decryptorPublicKeyCerRawData
, HashSignatureMode hashSignatureMode
, bool DoOAEPadding
, byte[] data
)
{
X509Certificate2 encryptorPrivateKeyPfx = null;
X509Certificate2 encryptorPublicKeyCer = null;
X509Certificate2 decryptorPublicKeyCer = null;
try
{
encryptorPrivateKeyPfx = null;
encryptorPublicKeyCer = null;
decryptorPublicKeyCer = null;
return(HybridEncrypt
(
encryptorPrivateKeyPfx
, encryptorPublicKeyCer
, decryptorPublicKeyCer
, hashSignatureMode
, DoOAEPadding
, data
));
}
catch
{
return(null);
}
finally
{
if (encryptorPrivateKeyPfx != null)
{
encryptorPrivateKeyPfx.Reset();
}
if (encryptorPublicKeyCer != null)
{
encryptorPublicKeyCer.Reset();
}
if (decryptorPublicKeyCer != null)
{
decryptorPublicKeyCer.Reset();
}
}
}
public static Secret HybridEncrypt
(
X509Certificate2 encryptorPrivateKeyPfx
, X509Certificate2 encryptorPublicKeyCer
, X509Certificate2 decryptorPublicKeyCer
, HashSignatureMode signHashMode
, bool DoOAEPadding
, byte[] data
)
{
RSACryptoServiceProvider encryptorPrivateKeyPfxProvider = encryptorPrivateKeyPfx.PrivateKey as RSACryptoServiceProvider;
RSACryptoServiceProvider decryptorPublicKeyCerProvider = decryptorPublicKeyCer.PublicKey.Key as RSACryptoServiceProvider;
return(HybridEncrypt
(
encryptorPrivateKeyPfxProvider
, encryptorPublicKeyCer
, decryptorPublicKeyCerProvider
, signHashMode
, DoOAEPadding
, data
));
}
public static Secret HybridEncrypt
(
RSACryptoServiceProvider encryptorPrivateKeyPfxProvider
, X509Certificate2 encryptorPublicKeyCer
, RSACryptoServiceProvider decryptorPublicKeyCerProvider
, HashSignatureMode signHashMode
, bool DoOAEPadding
, byte[] data
)
{
Secret secret = new Secret();
using (TripleDESCryptoServiceProvider provider = new TripleDESCryptoServiceProvider())
{
provider.GenerateIV();
secret.EncryptorSharedEncryptedOnceIV = provider.IV;
provider.GenerateKey();
secret.EncryptorSharedEncryptedOnceKey = provider.Key;
secret.EncryptedData = provider.CreateEncryptor().TransformFinalBlock(data, 0, data.Length);
}
secret.EncryptorSharedEncryptedOnceIV = decryptorPublicKeyCerProvider.Encrypt(secret.EncryptorSharedEncryptedOnceIV, DoOAEPadding);
secret.EncryptorSharedEncryptedOnceKey = decryptorPublicKeyCerProvider.Encrypt(secret.EncryptorSharedEncryptedOnceKey, DoOAEPadding);
HashAlgorithm hashAlgorithm;
if (signHashMode == HashSignatureMode.SHA1)
{
hashAlgorithm = new SHA1CryptoServiceProvider();
}
else //(hashSignatureMode == HashSignatureMode.MD5)
{
hashAlgorithm = new MD5CryptoServiceProvider();
}
MemoryStream stream = new MemoryStream();
byte[] buffer = secret.EncryptorSharedEncryptedOnceIV;
stream.Write(buffer, 0, buffer.Length);
buffer = secret.EncryptorSharedEncryptedOnceKey;
stream.Write(buffer, 0, buffer.Length);
buffer = secret.EncryptedData;
stream.Position = 0;
buffer = hashAlgorithm.ComputeHash(stream);
stream.Close();
stream.Dispose();
secret.EncryptorHashSignature = encryptorPrivateKeyPfxProvider.SignHash
(
buffer
, Enum.GetName
(
signHashMode.GetType()
, signHashMode
)
);
secret.EncryptorPublicKeyCerRawData = encryptorPublicKeyCer.RawData;
secret.SignHashMode = signHashMode;
secret.DoOAEPadding = DoOAEPadding;
return secret;
}
public static Secret HybridEncrypt
(
X509Certificate2 encryptorPrivateKeyPfx
, X509Certificate2 encryptorPublicKeyCer
, X509Certificate2 decryptorPublicKeyCer
, HashSignatureMode signHashMode
, bool DoOAEPadding
, byte[] data
)
{
RSACryptoServiceProvider encryptorPrivateKeyPfxProvider = encryptorPrivateKeyPfx.PrivateKey as RSACryptoServiceProvider;
RSACryptoServiceProvider decryptorPublicKeyCerProvider = decryptorPublicKeyCer.PublicKey.Key as RSACryptoServiceProvider;
return HybridEncrypt
(
encryptorPrivateKeyPfxProvider
, encryptorPublicKeyCer
, decryptorPublicKeyCerProvider
, signHashMode
, DoOAEPadding
, data
);
}
public static Secret HybridEncrypt
(
string encryptorPrivateKeyPfxFileName
, string encryptorPublicKeyCerFileName
, string decryptorPublicKeyCerFileName
, HashSignatureMode hashSignatureMode
, bool DoOAEPadding
, byte[] data
)
{
X509Certificate2 encryptorPrivateKeyPfx = null;
X509Certificate2 encryptorPublicKeyCer = null;
X509Certificate2 decryptorPublicKeyCer = null;
try
{
encryptorPrivateKeyPfx = new X509Certificate2(encryptorPrivateKeyPfxFileName);
encryptorPublicKeyCer = new X509Certificate2(encryptorPublicKeyCerFileName);
decryptorPublicKeyCer = new X509Certificate2(decryptorPublicKeyCerFileName);
return HybridEncrypt
(
encryptorPrivateKeyPfx
, encryptorPublicKeyCer
, decryptorPublicKeyCer
, hashSignatureMode
, DoOAEPadding
, data
);
}
catch
{
return null;
}
finally
{
if (encryptorPrivateKeyPfx != null)
{
encryptorPrivateKeyPfx.Reset();
}
if (encryptorPublicKeyCer != null)
{
encryptorPublicKeyCer.Reset();
}
if (decryptorPublicKeyCer != null)
{
decryptorPublicKeyCer.Reset();
}
}
}
public static Secret HybridEncrypt
(
byte[] encryptorPrivateKeyPfxRawData
, byte[] encryptorPublicKeyCerRawData
, byte[] decryptorPublicKeyCerRawData
, HashSignatureMode hashSignatureMode
, bool DoOAEPadding
, byte[] data
)
{
X509Certificate2 encryptorPrivateKeyPfx = null;
X509Certificate2 encryptorPublicKeyCer = null;
X509Certificate2 decryptorPublicKeyCer = null;
try
{
encryptorPrivateKeyPfx = null;
encryptorPublicKeyCer = null;
decryptorPublicKeyCer = null;
return HybridEncrypt
(
encryptorPrivateKeyPfx
, encryptorPublicKeyCer
, decryptorPublicKeyCer
, hashSignatureMode
, DoOAEPadding
, data
);
}
catch
{
return null;
}
finally
{
if (encryptorPrivateKeyPfx != null)
{
encryptorPrivateKeyPfx.Reset();
}
if (encryptorPublicKeyCer != null)
{
encryptorPublicKeyCer.Reset();
}
if (decryptorPublicKeyCer != null)
{
decryptorPublicKeyCer.Reset();
}
}
}
