rpmsign – Signature management tool for using RPM packages

The rpmsign command is a signature management tool for using RPM packages in Linux. It is used to sign, verify, and list signatures of RPM packages. This command is useful for ensuring the authenticity and integrity of RPM packages, as well as for managing the signing keys used to sign them.

Overview

The rpmsign command can be used in various ways, depending on the specific task at hand. Here are some examples of how to use the command:

Sign an RPM package

To sign an RPM package, use the following command:

rpmsign --addsign <rpm-package>

This will prompt you for the passphrase of the signing key and add a signature to the RPM package.

Verify the signature of an RPM package

To verify the signature of an RPM package, use the following command:

rpmsign --verify <rpm-package>

This will display the signature information of the RPM package if it is signed and valid.

List the signatures of an RPM package

To list the signatures of an RPM package, use the following command:

rpmsign --list <rpm-package>

This will display the signature information of the RPM package.

Import a signing key

To import a signing key, use the following command:

rpmsign --import <key-file>

This will import the signing key from the specified file.

Export a signing key

To export a signing key, use the following command:

rpmsign --export <key-id>

This will export the signing key with the specified ID to a file.

Remove a signature from an RPM package

To remove a signature from an RPM package, use the following command:

rpmsign --delsign <rpm-package>

This will remove the signature from the RPM package.

Options

The following table lists the available options for the rpmsign command:

Option	Description
--addsign	Add a signature to an RPM package
--verify	Verify the signature of an RPM package
--list	List the signatures of an RPM package
--import	Import a signing key
--export	Export a signing key
--delsign	Remove a signature from an RPM package
--addkey	Add a signing key to the keyring
--delsig	Remove a signature from the keyring
--delsigkey	Remove a signing key from the keyring
--getsig	Get the signature of a package
--getsignatures	Get the signatures of a package
--key-id	Specify the ID of the signing key
--define	Define a macro for use in the signature configuration file
--config	Specify the signature configuration file
--force	Force the operation to proceed, even if it may be unsafe

Troubleshooting tips

Here are some tips for troubleshooting common issues with the rpmsign command:

• If you receive an error message indicating that the signature is invalid or cannot be verified, ensure that the signing key used to sign the RPM package is trusted and valid.
• If you receive an error message indicating that the signing key cannot be found, ensure that the key is imported and available in the keyring.
• If you receive an error message indicating that the signature cannot be added or removed, ensure that you have the necessary permissions and that the RPM package is not read-only.

Notes

• The rpmsign command is typically used in conjunction with other RPM package management tools, such as rpm and yum.
• The signature configuration file used by the rpmsign command is typically located at /etc/rpm/macros.signature or /usr/lib/rpm/macros.signature.