The SABRE USB emulates the NIST 800-73 Smart Card specification and supports up to 4 digital certificates within each Virtual Credential, including a User Authentication, Signing, Encryption and Card Authentication certificate. The Safetrust Wallet allows a user to have 1 to many Virtual Credentials, that may be set with varied controls, based on their level of assurance. For example, a high level assurance Virtual Credential, may require re-authentication with a biometric or PIN before use.