private static bool VerifyRSAKeyPairSign(
RSA rsaPublicKey,
RSA rsaPrivateKey)
{
Opc.Ua.Test.RandomSource randomSource = new Opc.Ua.Test.RandomSource();
int blockSize = RsaUtils.GetPlainTextBlockSize(rsaPrivateKey, true);
byte[] testBlock = new byte[blockSize];
randomSource.NextBytes(testBlock, 0, blockSize);
byte[] signature = rsaPrivateKey.SignData(testBlock, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1);
return(rsaPublicKey.VerifyData(testBlock, signature, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1));
}
private static bool VerifyRSAKeyPairCrypt(
RSA rsaPublicKey,
RSA rsaPrivateKey)
{
Opc.Ua.Test.RandomSource randomSource = new Opc.Ua.Test.RandomSource();
int blockSize = RsaUtils.GetPlainTextBlockSize(rsaPrivateKey, true);
byte[] testBlock = new byte[blockSize];
randomSource.NextBytes(testBlock, 0, blockSize);
byte[] encryptedBlock = rsaPublicKey.Encrypt(testBlock, RSAEncryptionPadding.OaepSHA1);
byte[] decryptedBlock = rsaPrivateKey.Decrypt(encryptedBlock, RSAEncryptionPadding.OaepSHA1);
if (decryptedBlock != null)
{
return(Utils.IsEqual(testBlock, decryptedBlock));
}
return(false);
}
/// <summary>
/// Initializes the data generator.
/// </summary>
public DataGenerator(IRandomSource random)
{
m_maxArrayLength = 100;
m_maxStringLength = 100;
m_maxXmlAttributeCount = 10;
m_maxXmlElementCount = 10;
m_minDateTimeValue = new DateTime(1900, 1, 1, 0, 0, 0, DateTimeKind.Utc);
m_maxDateTimeValue = new DateTime(2100, 1, 1, 0, 0, 0, DateTimeKind.Utc);
m_random = random;
m_boundaryValueFrequency = 20;
m_namespaceUris = new NamespaceTable();
m_serverUris = new StringTable();
// create a random source if none provided.
if (m_random == null)
{
m_random = new RandomSource();
}
// load the boundary values.
m_boundaryValues = new SortedDictionary <string, object[]>();
for (int ii = 0; ii < s_AvailableBoundaryValues.Length; ii++)
{
m_boundaryValues[s_AvailableBoundaryValues[ii].SystemType.Name] = s_AvailableBoundaryValues[ii].Values.ToArray();
}
// load the localized tokens.
m_tokenValues = LoadStringData("Opc.Ua.Types.Utils.LocalizedData.txt");
if (m_tokenValues.Count == 0)
{
m_tokenValues = LoadStringData("Opc.Ua.Utils.LocalizedData.txt");
}
// index the available locales.
m_availableLocales = new string[m_tokenValues.Count];
int index = 0;
foreach (string locale in m_tokenValues.Keys)
{
m_availableLocales[index++] = locale;
}
}
/// <summary>
/// Verify RSA key pair of two certificates.
/// </summary>
private static bool VerifyRSAKeyPair(
X509Certificate2 certWithPublicKey,
X509Certificate2 certWithPrivateKey,
bool throwOnError = false)
{
bool result = false;
try
{
// verify the public and private key match
using (RSA rsaPrivateKey = certWithPrivateKey.GetRSAPrivateKey())
{
using (RSA rsaPublicKey = certWithPublicKey.GetRSAPublicKey())
{
Opc.Ua.Test.RandomSource randomSource = new Opc.Ua.Test.RandomSource();
int blockSize = RsaUtils.GetPlainTextBlockSize(rsaPrivateKey, true);
byte[] testBlock = new byte[blockSize];
randomSource.NextBytes(testBlock, 0, blockSize);
byte[] encryptedBlock = rsaPublicKey.Encrypt(testBlock, RSAEncryptionPadding.OaepSHA1);
byte[] decryptedBlock = rsaPrivateKey.Decrypt(encryptedBlock, RSAEncryptionPadding.OaepSHA1);
if (decryptedBlock != null)
{
result = Utils.IsEqual(testBlock, decryptedBlock);
}
}
}
}
catch (Exception e)
{
if (throwOnError)
{
throw e;
}
}
finally
{
if (!result && throwOnError)
{
throw new CryptographicException("The public/private key pair in the certficates do not match.");
}
}
return(result);
}
