Diodes:
The software version of the digital diode is a device that allows information to flow into a network without allowing internal information to flow out. It operates by providing inbound file transfers from an 'outside' network and allowing an internal network to download those files in a read-only mode. It provides a low cost reasonable assurance system for secure infrastructure without sacrificing access to outside capabilities.
The hardware digital diode is a hardware version of the soft diode that provides very high assurance against information leaks. It operates by physically connecting two computers so that one computer can only send information to the other and cannot receive information back. Reliable transmission is handled by a combination of hardware and software capabilities.
| Platform: | X86 platform running White Glove Linux |
|---|---|
| Interfaces: | 3 10/100baseT, Serial port, SVGA, KB, Mouse |
| Throughput: | Sustained, 10Mbps |
| Memory: | 256Meg RAM, 4 Gig Permanent |
| Size: | Less than 12"x6"x2" |
| Power: | 120V adapter provided |
| Weight: | Under 5 Lbs. |
| Services: | Diode, (scp, ftp, SMB for transfers) |
| Control: | Console or Ethernet |
| Shipping: | Typically 30 days from order |
| Platform: | Dual X86 platforms running White Glove Linux |
|---|---|
| Interfaces: | Inbound and outbound 10/100baseT, Serial port, SVGA, KB, Mouse |
| Throughput: | Sustained, 5Mbps |
| Memory: | 256Meg RAM, 8 Gig Permanent |
| Size: | Less than 12"x6"x6" |
| Power: | 2 120V adapters provided |
| Weight: | Under 10 Lbs. |
| Services: | Diode, (scp, ftp, SMB for transfers) |
| Control: | Console or Ethernet |
| Shipping: | Typically 30 days from order |
The digital diode was first written about in the mid 1980s when it was used for allowing unclassified data - such as weather information - into classified systems - such as command and control systems. Since that time, diodes have been used in a wide range of applications, ranging from preventing viruses from escaping experimental enclosures while providing Internet access, to affording network users on unclassified networks to import content to their classified computers.
Our diodes provide scp, ftp, and smb access from sending and receiving sides and automate the movement of information from sender to receiver in a reliable and rapid manner. This is accomplished in the soft diode by providing write-only access on one interface and read-only access son the other interface. The diode automatically deletes information as it gets full. It can also be configured to automatically transmit inbound information to internal servers, which is a more secure operating mode.
In the hard diode, security is assured to a higher degree by providing only outbound write signals to go from one hardware device to the other, so that there is no physical path within the diodes for signals to return to the sender. As in the soft diode, the interface operated in any of ftp, scp, or smb access modes, but unlike the soft diode, there is no physical way to get information out through the diode as delivered.