# Verify file signature with PGP ### Description The `Verify file signature with PGP` action can be used to verify a file [signature to ensure its authenticity](https://www.gnupg.org/gph/en/manual/x135.html). GnuPG package must be installed in the runtime environment and encryption keys added to the runtime user keystore for this to function. ### Options | Option | Description | | ---------------------- | ------------------------------------------------------------------------------------------------------- | | Action name | The name of the workflow action. | | GPG location | The file path of the GnuPG executable (e.g. `/usr/bin/gpg`). | | Filename | The signed file path. | | Use detached signature | Whether or not to use a detached signature. | | Detached signature | Path to the detached signature file (only available when the `Use detached signature` above is checked) | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.primeur.com/data-shaper-1.21/knowing-the-data-shaper-designer/workflows/actions/pgpverify.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.