NBG Request Signer

About

Windows Forms application for generating detached JWS from a json payload input.

Executable file

The exe is in the Executable folder.

Usage

Setup Config file

• Set the CertificatePath and CertificatePassword of the private .p12 file that will be used for generating the detached JWS signature.

Generating the detached JWS

• Paste in the Request textbox the payload of the request that needs to be signed.
• Click generate signature.
• The detached JWS textbox will be filled. It can be copied and used as the Signature header in the request.

Get TPP-Signature-Certificate from public certificate file

• Click Select Certificate File button.
• From the file picker that appears select the public certificate file.
• A base64 string will be filled in the above textbox. It can be used in the TPP-Signature-Certificate request header.

Implementation

• The string is parsed as a json object and then serialized back to string, to make sure whitespaces and new lines are removed.
• Then using the output string we generate a JWS detached signature