public void SignAndVerifySignatureECDsa()
{
byte[] signature = WinRTCrypto.CryptographicEngine.Sign(this.ecdsaSigningKey, this.data);
Assert.IsTrue(WinRTCrypto.CryptographicEngine.VerifySignature(this.ecdsaSigningKey, this.data, signature));
Assert.IsFalse(WinRTCrypto.CryptographicEngine.VerifySignature(this.ecdsaSigningKey, PclTestUtilities.Tamper(this.data), signature));
Assert.IsFalse(WinRTCrypto.CryptographicEngine.VerifySignature(this.ecdsaSigningKey, this.data, PclTestUtilities.Tamper(signature)));
}
public void SignAndVerifySignatureRsaSha256()
{
try
{
byte[] signature = WinRTCrypto.CryptographicEngine.Sign(this.rsaSha256SigningKey, this.data);
Assert.IsTrue(WinRTCrypto.CryptographicEngine.VerifySignature(this.rsaSha256SigningKey, this.data, signature));
Assert.IsFalse(WinRTCrypto.CryptographicEngine.VerifySignature(this.rsaSha256SigningKey, PclTestUtilities.Tamper(this.data), signature));
Assert.IsFalse(WinRTCrypto.CryptographicEngine.VerifySignature(this.rsaSha256SigningKey, this.data, PclTestUtilities.Tamper(signature)));
}
catch (NotSupportedException)
{
Debug.WriteLine("Not supported by the platform.");
}
}
public void SignHashedData_VerifySignatureWithHashInput_Sha256()
{
try
{
byte[] hash = WinRTCrypto.HashAlgorithmProvider.OpenAlgorithm(HashAlgorithm.Sha256)
.HashData(this.data);
byte[] signature = WinRTCrypto.CryptographicEngine.SignHashedData(this.rsaSha256SigningKey, hash);
Assert.IsTrue(WinRTCrypto.CryptographicEngine.VerifySignatureWithHashInput(this.rsaSha256SigningKey, hash, signature));
Assert.IsFalse(WinRTCrypto.CryptographicEngine.VerifySignatureWithHashInput(this.rsaSha256SigningKey, hash, PclTestUtilities.Tamper(signature)));
Assert.IsFalse(WinRTCrypto.CryptographicEngine.VerifySignatureWithHashInput(this.rsaSha256SigningKey, PclTestUtilities.Tamper(this.data), signature));
}
catch (NotSupportedException)
{
// Not all platforms support this.
Debug.WriteLine("Skipped test for unsupported functionality on this platform.");
}
}