Digital signature prefix

Question

I am facing an issue and cannot figure out what i am missing.I am calculating a digital signature in c# and cannot get the right signature value.Does anybody know if signature prefix can change the signature value? My webservice wants a "ds" prefix and what i do fom code is to calculate the signature and after that add the prefix.Could this be the problem? My digest value is the right one but the signature value is different.Is it necessary to first set the prefix and after that calculate the signature? Thanks!

Answer 1

Hi, it would be the issue, you can try  firstly set the prefix and after that calculate the signature and compare the values.

Answer 2

Thanks! I think this is the issue but cannot find a way to do that.I succeeded only to put the prefix after calculating the signature.

Answer 3

When i said about the setting the prefix i am talking about the prefix from Signature tag..not the body for which i calculate the signature