Hi Frederico,
I'm not really sure I understand your question of "how" to generate the
signature. Are you refering to how the scripting should look like or
something else ? But anyway, it is not possible with OpenSIPS 2.4.7 as
the stir_shaken module is available starting with OpenSIPS 3.1.
Regards,
Vlad Patrascu
On 13.04.2020 18:13, Saint Michael wrote:
I am trying to do the same. The question I need to ask here is: how do
you generate the signature from the certificate, the caller ID and the
destination number?
I have the API working in staging mode, but now I need to really sign
a call and send it forward with Opensips 2.4.7
Federico
On Mon, Apr 13, 2020 at 11:03 AM Vlad Patrascu <[email protected]
<mailto:[email protected]>> wrote:
Hi Alexandru,
OpenSIPS is using the signature in DER encoded format (as it is
directly generated by openssl) but indeed it is not the proper
format as per RFC 7518. Thanks for the report, I am working on a fix.
Regards,
Vlad Patrascu
On 10.04.2020 12:28, Alexandru Tripon wrote:
Hi,
I tried to populate the Identity header with the stir_shaken module.
The header is populated but when I try to verify the signature
using an external tool it fails because of the length.
I have the folowing Identity generated by Opensips:
`
eyJhbGciOiJFUzI1NiIsInBwdCI6InNoYWtlbiIsInR5cCI6InBhc3Nwb3J0IiwieDV1IjoiL2hvbWUvdHJpYWwvTHVjcnUvQ29kZS9zdGlyU2hha2VuL215cHVia2V5LnBlbSJ9.eyJhdHRlc3QiOiJBIiwiZGVzdCI6eyJ0biI6WyIxMDAyIl19LCJpYXQiOjE1ODY1MDMxODcsIm9yaWciOnsidG4iOiIxMDAxIn0sIm9yaWdpZCI6IjEyMzQ1NiJ9.MEYCIQCjIx6w8IeilqHq0jbc6uwIB9v1RDmecoep0gRJJC4EmQIhANH1MO9jwRtqH6jgFH12XqROFv-nUroEgzsRAaMJtAsR;info=\u003c/home/trial/Lucru/Code/stirShaken/mypubkey.pem\u003e;ppt=\"shaken\"
`
the lenght of encoded signature(in base64) is 96 and in the
decoded one is 72.
In the RFC for ES256
algorithm(https://tools.ietf.org/html/rfc7518#section-3.4) the
length of the decoded signature is 64.
Am I missing something here?
Thanks,
Alexandru Tripon
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