/// <summary>
/// Devuelve los datos finales que deberán ser firmados
/// </summary>
/// <param name="content"></param>
/// <param name="parameters"></param>
/// <param name="signedData"></param>
/// <param name="isCounterSignature"></param>
/// <returns></returns>
private byte[] ToBeSigned(CmsProcessable content, SignatureParameters parameters, CmsSignedData signedData, bool isCounterSignature)
{
PreComputedSigner preComputedSigner = new PreComputedSigner();
CustomCMSSignedDataGenerator generator = CreateSignedGenerator(preComputedSigner, parameters, signedData);
if (parameters.PreCalculatedDigest != null)
{
generator.PreCalculatedDigest = parameters.PreCalculatedDigest;
}
else if (content == null)
{
// Si el contenido es nulo se intenta buscar el valor de la huella del contenido en las otras firmas
generator.PreCalculatedDigest = GetDigestValue(signedData.GetSignerInfos(), parameters.DigestMethod);
if (generator.PreCalculatedDigest == null)
{
throw new Exception("No se ha podido obtener la huella del contenido");
}
}
generator.PreGenerate(!isCounterSignature ? CmsObjectIdentifiers.Data.Id : null, content);
return(preComputedSigner.CurrentSignature());
}
/// <summary>
/// Returns the final data that must be signed
/// </summary>
/// <param name="content"></param>
/// <param name="parameters"></param>
/// <param name="signedData"></param>
/// <param name="isCounterSignature"></param>
/// <returns></returns>
private byte[] ToBeSigned(CmsProcessable content, SignatureParameters parameters, CmsSignedData signedData, bool isCounterSignature)
{
PreComputedSigner preComputedSigner = new PreComputedSigner();
CustomCMSSignedDataGenerator generator = CreateSignedGenerator(preComputedSigner, parameters, signedData);
if (parameters.PreCalculatedDigest != null)
{
generator.PreCalculatedDigest = parameters.PreCalculatedDigest;
}
else if (content == null)
{
// If the content is null, try to find the value of the content footprint in the other firms
generator.PreCalculatedDigest = GetDigestValue(signedData.GetSignerInfos(), parameters.DigestMethod);
if (generator.PreCalculatedDigest == null)
{
throw new Exception("Could not get the footprint of the content");
}
}
generator.PreGenerate(!isCounterSignature ? CmsObjectIdentifiers.Data.Id : null, content);
return(preComputedSigner.CurrentSignature());
}
