There are two type of certificates based on the functions they can perform Signing: It will be used by individuals or organizations for signing purpose Encryption: It will be used for receiving encrypted messages which is encrypted using subscriber’s public key Check Signing & Encryption Certificate This article will help you to identify signing or encryption certificate in your USB Token. Step 1: Internet Option – Content – Certificate – User Certificate – Double click on name to open certificate properties. Step 2: Click On “Details“ Step 3: Locate the field “Key Usage” and click on it. You certificate can be identified with the value as under Digital Signature , Non-Repudiation (c0) means “Signing Certificate” Key Encipherment (20) means ” Encryption Certificate”