Error on empty sequence in ASN1

[tienducle]

Hi,

I have two base64 encoded SMIME files which I put into forge.pkcs7.messageFromPem()

On the original file, there is a sequence with 0 elements, and it is making Forge to throw an error (left window on picture). Then I changed the empty sequence to null and then Forge accepts the file (right window on picture).

Is it not allowed to have an empty sequence? Or is it a bug?

Thanks in advance for any help!

Edit:
Error stack:
var p7 = forge.pkcs7.messageFromPem(pem);
p7.messageFromPem
p7.messageFromAsn1
msg.fromAsn1
_recipientInfosFromAsn1
_recipientInfoFromAsn1
var error = new Error('Cannot read PKCS#7 message. ' + 'ASN.1 object is not an PKCS#7 EnvelopedData.');

[dlongley]

Hi @Cyb3rfr3ak -- super busy at the moment, but I will get to looking into this when I can. I'll have to look at the spec to see if there can be an empty sequence in that position or not -- and if so, change the forge code to accept it, if not, it's an invalid file.