Ricoh Aficio MP C2050SPF Features Guide - Page 17

Hard Drive (HDD) Encryption This function can encrypt the system's hard drive to protect against data theft. Even if the hard drive stolen, data will not be disclosed. The encryption methodology used is Advanced Encryption Standard (AES) to 256 bits. Document Protection Finally, once a document has arrived at the output device for printing or storage, there needs to be sufficient protection in place to guard against unintentional access, reprinting, distribution, or modification for as long as the file resides in memory. Ricoh devices offer a number of features that safeguard information until the owner decides to retrieve or delete it. DataOverwriteSecurity System (DOSS) Ricoh devices with hard disk drives installed, sometimes referred to as the Document Server, temporarily store every document processed by Ricoh printers and MFPs whether copied, printed, faxed, or scanned. While there are considerable benefits related to sharing stored documents among authorized users, there is also the potential for unauthorized access, theft, or falsification. The DataOverwriteSecurity System (DOSS) eliminates these threats by overwriting the hard disk after each job so that files cannot be retrieved or recovered. Initially designed to meet government, military, and major account requirements for document security, you can use DOSS to add value to customers with all types of mission-critical documents that require protection from leaks and unauthorized distribution. DOSS destroys temporary data (not documents stored to the Document Server or data saved in Address Books) stored on device hard drives using one of three overwrite methods. Overwriting not only applies to all copy and print jobs, but scanned files, Sample Print/Locked Print, and File Format Conversions as soon as the job is completed: ■ NSA (National Security Agency) Standard: Overwrites the data three times: twice with random numbers and once with zeros. ■ DoD (Department of Defense) Standard: Overwrites the temporary data with a fixed value, the fixed value's complement, and then with random numbers. It then verifies the result. ■ Random Data Overwrite Standard: Allows users to overwrite temporary files with random numbers. Users select how many times the files will be overwritten, up to a maximum of nine times. The default is three times. 14