EvTrack supports using Qr Codes as Access Control Credentials as Contactless Modern Security Credentials for Temporary Visitor or Permanent Employee Access.
|Qr Code Type||Credential Reader Type||Description||Security||Notes|
|Email/SMS Qr Code||Qr Code||Temporary Credentials that can be assigned to Visitor Entities and are distributed only via Email and SMS||Medium||Qr Codes are generated and valid for the duration of the TTL (Time To Live Expiry) or until a new request is made to the Qr Code LINK/Button in the Email or SMS. When a new Qr Code is generated the old Qr Code will be cyclically removed for the database. When enabling “Send Qr Code as Attachment” the Qr Code is less because it is static and will not be refreshed until the TTL is reached.|
|Visitor/Personal/User Badge Qr Code||ID||Temporary Credentials can be assigned to any Entity. The Badges can be printed or emailed.||Low||Qr Code is static and will never be refreshed.|
|Mobile App Qr Code||Mobile App Qr Code||Mobile App Qr Code Credential can be assigned to any valid user. The user must be logged into the EvTrack Visitor App on their mobile device and have a working data connection.||High||The EvTrack App automatically manages the refreshing and cycling of credentials based on the TTL (Time To Live) setting. When the Qr Code reaches its Half TTL (Half Live) the App will request a new code and flush the old Qr Codes once it has confirmed receipt. In high-security applications, the TTL can be decreased to minimise potential issues with Qr Code sharing.|
When enabling "Send Qr Code as Attachment" consider increasing the TTL to 31536000 Seconds (356 Days)