Patent ID: 9083683
Filing Date: 2015-07-14
Classification: H04L

Abstract:
1. A device for secure communications between a protected network and an unprotected network, the device comprising: a first logic device configured as a plaintext unit; a second logic device configured as a ciphertext unit; and a third logic device configured as a cryptographic unit connected between the plaintext unit and the ciphertext unit; the first logic device comprising a red egress directional component configured to interface with the protected network to perform encapsulation of data from the protected network to define outgoing datagrams, and comprising a red ingress directional component operable to perform decapsulation of incoming datagrams from the cryptographic unit; the second logic device comprising a black ingress directional component configured to interface with the unprotected network to perform routing of incoming encrypted datagrams from the unprotected network to the cryptographic unit, and comprising a black egress directional component operable to perform routing of outgoing encrypted datagrams from the cryptographic unit to the unprotected network; the third logic device operable to perform encryption of outgoing datagrams from the plaintext unit, and operable to perform decryption of incoming encrypted datagrams from the ciphertext unit to define the incoming datagrams.