/// Check that SignedInfo contains exactly one Reference to every document,
/// plus one Reference to the SignedProperties
/// @throws SignatureException on a problem in signature
void digidoc::SignatureBES::checkReferences() const throw(SignatureException)
{
dsig::SignedInfoType& signedInfo = signature->signedInfo();
dsig::SignedInfoType::ReferenceSequence& refSeq = signedInfo.reference();
if ( refSeq.size() != (bdoc.documentCount() + 1) )
{
// we require exactly one ref to every document, plus one ref to the SignedProperties
THROW_SIGNATUREEXCEPTION("Number of references in SignedInfo is invalid: found %d, expected %d"
, refSeq.size(), bdoc.documentCount() + 1);
}
// check reference to SignedProperties
bool gotSignatureRef = false; // remember to ensure, it exists only once
for ( dsig::SignedInfoType::ReferenceSequence::const_iterator itRef = refSeq.begin()
; itRef != refSeq.end()
; itRef++
)
{
const dsig::ReferenceType& refType = (*itRef);
if ( isReferenceToSigProps(refType) )
{
// the one and only reference to SignedProperties
if ( gotSignatureRef )
{
THROW_SIGNATUREEXCEPTION("SignedInfo element refers to more than one SignedProperties");
}
gotSignatureRef = true; // remember this, we don't expect any more of those
checkReferenceToSigProps(refType);
} // else: skip, checked elsewhere
}
if ( !gotSignatureRef )
{
THROW_SIGNATUREEXCEPTION("SignedInfo does not contain reference to SignedProperties");
}
// check refs to documents
checkReferencesToDocs(refSeq);
}
void bdoc::Signature::checkReferences()
{
dsig::SignedInfoType& signedInfo = _sign->signedInfo();
dsig::SignedInfoType::ReferenceSequence&
refSeq = signedInfo.reference();
if (refSeq.size() != (_bdoc->documentCount() + 1)) {
// we require exactly one ref to every document,
// plus one ref to the SignedProperties
THROW_STACK_EXCEPTION(
"Number of references in SignedInfo is invalid: "
"found %d, expected %d",
refSeq.size(), _bdoc->documentCount() + 1);
}
bool gotSignatureRef = false;
for (dsig::SignedInfoType::ReferenceSequence::const_iterator
itRef = refSeq.begin(); itRef != refSeq.end(); itRef++) {
const dsig::ReferenceType& refType = (*itRef);
if (isReferenceToSigProps(refType)) {
// the one and only reference to SignedProperties
if (gotSignatureRef) {
THROW_STACK_EXCEPTION(
"SignedInfo element refers to more "
"than one SignedProperties");
}
gotSignatureRef = true;
checkReferenceToSigProps(refType);
}
}
if (!gotSignatureRef) {
THROW_STACK_EXCEPTION(
"SignedInfo does not contain reference to "
"SignedProperties");
}
checkReferencesToDocs(refSeq);
}
