Assa Abloy has introduced its Mobile Keys Platform, a scalable secure delivery infrastructure for distribution and management of mobile keys. The platform enables credentials to be distributed securely through NFC (Near Field Communication)-enabled mobile phones, as an alternative to mechanical keys and physical access cards. Using the platform, security managers can manage credentials from a central access control system and easily issue mobile keys to mobile phones. The credentials are stored in a tamper-resistant memory space in the phone. Credentials can be revoked if the phone is lost or stolen, and new keys can then be re-issued.