Yeah, BLACKER did quite a bit. It was a network MLS component like many others that came after it. GEMSOS, Boeing SNS Server, and DiamondTek LAN are examples. Modern variant would be an Octeon 2 or 3 PCI card with similarly secure software.
Too much to explain, though. BLACKER's main purpose was securing the connection between dumb terminals and things they connected to. It used crypto, MLS, and TEMPEST-style hardware. It was a network device as well. A VPN is closest term for modern audience to convey its main goals.
http://cahighways.org/wordpress/?p=5460
Yeah, BLACKER did quite a bit. It was a network MLS component like many others that came after it. GEMSOS, Boeing SNS Server, and DiamondTek LAN are examples. Modern variant would be an Octeon 2 or 3 PCI card with similarly secure software.
Too much to explain, though. BLACKER's main purpose was securing the connection between dumb terminals and things they connected to. It used crypto, MLS, and TEMPEST-style hardware. It was a network device as well. A VPN is closest term for modern audience to convey its main goals.