public EncryptedData()
{
this.m_cipherData = new CipherData();
this.m_encryptionMethod = new EncryptionMethodElement();
}
internal static void Encrypt(Stream toEncrypt, RSA key, out KeyInfo keyInfo, out EncryptionMethod encryptionMethod, out CipherData cipherData)
{
using (Aes sessionKey = Aes.Create())
{
sessionKey.KeySize = 128;
encryptionMethod = new EncryptionMethod(EncryptedXml.XmlEncAES128Url);
keyInfo = new KeyInfo();
EncryptedKey encKey;
keyInfo.AddClause(
new KeyInfoEncryptedKey(
encKey = new EncryptedKey()
{
CipherData = new CipherData(EncryptedXml.EncryptKey(sessionKey.Key, key, useOAEP: true)),
EncryptionMethod = new EncryptionMethod(EncryptedXml.XmlEncRSAOAEPUrl)
}));
encKey.KeyInfo.AddClause(new RSAKeyValue(key));
byte[] dataToEncrypt = new byte[toEncrypt.Length];
toEncrypt.Read(dataToEncrypt, 0, (int)toEncrypt.Length);
var encryptedXml = new EncryptedXml();
encryptedXml.Padding = PaddingMode.PKCS7;
encryptedXml.Mode = CipherMode.CBC;
byte[] encryptedData = encryptedXml.EncryptData(dataToEncrypt, sessionKey);
cipherData = new CipherData(encryptedData);
}
}
public void CipherReference_Null()
{
CipherData cipherData = new CipherData();
Assert.Throws <ArgumentNullException>(() => cipherData.CipherReference = null);
}
public void LoadXml_Null()
{
CipherData cipherData = new CipherData();
Assert.Throws <ArgumentNullException>(() => cipherData.LoadXml(null));
}
public void CipherValue_CipherReferenceSet()
{
CipherData cipherData = new CipherData(new CipherReference());
Assert.Throws <System.Security.Cryptography.CryptographicException>(() => cipherData.CipherValue = new byte[0]);
}
public static void Encrypt(Stream toEncrypt, RsaKeyParameters key, out KeyInfo keyInfo, out EncryptionMethod encryptionMethod, out CipherData cipherData)
{
var random = new SecureRandom();
var keyData = new byte[128 / 8];
var ivData = new byte[128 / 8];
random.NextBytes(ivData);
random.NextBytes(keyData);
var sessionKey = new ParametersWithIV(new KeyParameter(keyData), ivData);
encryptionMethod = new EncryptionMethod(EncryptedXml.XmlEncAES128Url);
keyInfo = new KeyInfo();
EncryptedKey encKey;
keyInfo.AddClause(
new KeyInfoEncryptedKey(
encKey = new EncryptedKey()
{
CipherData = new CipherData(EncryptedXml.EncryptKey(keyData, key, useOAEP: true)),
EncryptionMethod = new EncryptionMethod(EncryptedXml.XmlEncRSAOAEPUrl)
}));
encKey.KeyInfo.AddClause(new RSAKeyValue(key));
byte[] dataToEncrypt = new byte[toEncrypt.Length];
toEncrypt.Read(dataToEncrypt, 0, (int)toEncrypt.Length);
var encryptedXml = new EncryptedXml();
encryptedXml.Padding = "PKCS7";
encryptedXml.Mode = "CBC";
byte[] encryptedData = encryptedXml.EncryptData(dataToEncrypt, sessionKey);
cipherData = new CipherData(encryptedData);
}
