Soldier's identification that's worn around the neck: 2 wds

• It holds private information
• GI ID
• It often includes an owner's name
• US soldier's metal identity disk
• Private identification?
• G.I. I.D
• GI's neckwear
• Army ID

Wikipedia Word definitions in Wikipedia
Dogtag Certificate System is an open source Certificate authority (CA), which is a full-featured system. It supports all aspects of certificate life cycle management. It includes Certificate Authority, Key archival , OCSP and smart card management. 389-ds-base: ...