Check it's us:
Gpg4usb is a portable software for encrypting and decrypting files and messages, as well as verifying digital signatures using OpenPGP. Here is a step-by-step guide on how to verify a signature using gpg4usb:
1. Download and Install gpg4usb
- Go to the official gpg4usb website.
- Download the latest version of gpg4usb for your operating system (Windows or Linux).
- Unpack the downloaded archive to a convenient location. gpg4usb does not require installation, so you can run the program directly from the folder.
2. Launch gpg4usb
- Go to the folder where you unpacked gpg4usb.
- Launch the gpg4usb.exe file (for Windows) or gpg4usb (for Linux).
3. Importing the Public Key
To verify the signature, you need to import the sender's public key:
- Go to the Key Management tab.
- Click the Import button.
- Select the file with the sender's public key and click Open.
- Ensure that the key was successfully imported and is displayed in the list of keys.
4. Verifying the Signature
- Go to the Main Window tab.
- Paste the signed message into the text field. If the message is in a separate file, click the Load from File button and select the file.
- Click the Verify button.
5. Verification Results
After clicking the Verify button, gpg4usb will check the signature and display the results:
- If the signature is valid and matches the imported public key, you will see a success message.
- If the signature is invalid or does not match the public key, you will receive an error message.
Notes
- Make sure you have the correct and up-to-date public key of the sender. If the key has changed or been revoked, the signature verification may fail.
- gpg4usb only supports the OpenPGP format. Ensure that the signature and keys conform to this standard.
Using this guide, you can easily verify digital signatures with gpg4usb. If you have any questions or issues, refer to the gpg4usb documentation or support forums.