public static void SignerInfo_RemoveUnsignedAttributeFromCounterSigner_Removes()
{
SignedCms cms = new SignedCms();
cms.Decode(SignedDocuments.OneRsaSignerTwoRsaCounterSigners);
AsnEncodedData attribute1 = CreateTimestampToken(1);
AsnEncodedData attribute2 = CreateTimestampToken(2);
SignerInfo counterSigner = cms.SignerInfos[0].CounterSignerInfos[0];
counterSigner.AddUnsignedAttribute(attribute1);
counterSigner.AddUnsignedAttribute(attribute2);
ReReadSignedCms(ref cms);
SignerInfo signer = cms.SignerInfos[0];
// attributes got sorted, therefore number changed
Assert.Equal(2, signer.CounterSignerInfos.Count);
Assert.Equal(0, signer.CounterSignerInfos[0].UnsignedAttributes.Count);
Assert.Equal(1, signer.CounterSignerInfos[1].UnsignedAttributes.Count);
Assert.Equal(2, signer.CounterSignerInfos[1].UnsignedAttributes[0].Values.Count);
counterSigner = signer.CounterSignerInfos[1];
counterSigner.RemoveUnsignedAttribute(counterSigner.UnsignedAttributes[0].Values[0]);
// We didn't modify existing instances
Assert.Equal(2, signer.CounterSignerInfos.Count);
Assert.Equal(1, counterSigner.UnsignedAttributes.Count);
Assert.Equal(2, counterSigner.UnsignedAttributes[0].Values.Count);
// parent got updated
Assert.Equal(0, signer.CounterSignerInfos[0].UnsignedAttributes.Count);
Assert.Equal(1, signer.CounterSignerInfos[1].UnsignedAttributes.Count);
// We did modify the state
Assert.Equal(1, cms.SignerInfos[0].CounterSignerInfos[1].UnsignedAttributes.Count);
Assert.Equal(1, cms.SignerInfos[0].CounterSignerInfos[1].UnsignedAttributes[0].Values.Count);
ReReadSignedCms(ref cms);
counterSigner = cms.SignerInfos[0].CounterSignerInfos[1];
Assert.Equal(1, counterSigner.UnsignedAttributes.Count);
Assert.Equal(1, counterSigner.UnsignedAttributes[0].Values.Count);
counterSigner.RemoveUnsignedAttribute(counterSigner.UnsignedAttributes[0].Values[0]);
// We didn't modify current instance
Assert.Equal(1, counterSigner.UnsignedAttributes.Count);
Assert.Equal(1, counterSigner.UnsignedAttributes[0].Values.Count);
// We did modify the state
Assert.Equal(0, cms.SignerInfos[0].CounterSignerInfos[1].UnsignedAttributes.Count);
}
public static void SignerInfo_AddRemoveUnsignedAttributeWithDetachtedSigner_Throws()
{
SignedCms cms = new SignedCms();
cms.Decode(SignedDocuments.OneRsaSignerTwoRsaCounterSigners);
// Detatch signer (and its counter signers)
SignerInfo counterSigner = cms.SignerInfos[0].CounterSignerInfos[0];
cms.RemoveSignature(0);
// we shouldn't throw
Assert.Equal(0, counterSigner.UnsignedAttributes.Count);
AsnEncodedData attribute = CreateTimestampToken(1);
Assert.Throws <CryptographicException>(() => counterSigner.AddUnsignedAttribute(attribute));
Assert.Throws <CryptographicException>(() => counterSigner.RemoveUnsignedAttribute(attribute));
}