HP OfficeJet Enterprise Color X555 Trusted Platform Module - User Guide - Page 5

1 Product overview The HP Trusted Platform Module Accessory (TPM) provides secure device identity with certificate private keys generated and protected by the TPM. The TPM strengthens protection of encrypted credentials and data stored on the printer or MFP by automatically sealing device encryption keys to the TPM. The TPM automatically pairs with the printer at installation. Once installed, the printer and the TPM are sealed and the printer owns the TPM. The TPM may not be moved to another device without losing its ownership from the original printer. If moved and ownership is transferred to a new printer, the data on the original printer will be cryptographically erased. The TPM can create, use and store encryption keys. It automatically protects drive lock password, stored passwords, and certificate private keys. Keys are sealed to the master encryption key stored in the TPM and only accessible through the TPM. The TPM prevents the printer from starting if the TPM is missing. If the TPM is removed from the printer, a front control panel error message will appear to indicate that the TPM is missing. If the Stop Using TPM process is performed, firmware will be reinstalled when the printer is restarted. All other installed applications or solutions will need to be reloaded and the printer reconfigured. NOTE: In some situations, a hard drive error might be seen requiring printer firmware to be manually restored with a USB flash drive at the preboot menu. ENWW 1