Patent ID: 9369446
Filing Date: 2016-06-14
CPC Classification: H04L

Claim Text:
1. A method for communication, comprising: receiving in a secure installation via a network from a remote user terminal an input comprising a stream of symbols that has been encrypted using a preselected encryption key; decoding the encrypted stream of symbols in the secure installation using a decryption key corresponding to the preselected encryption key, to produce a clear stream of symbols; inputting the clear stream of symbols via a first one-way link to a processor in the secure installation; using a computer program running on the processor in the secure installation, processing the symbols in the clear stream and generating a graphical output in a predefined display format in response to processing the symbols; and outputting the graphical output from the secure installation via a second one-way link to the network in an unencrypted format for display on the remote user terminal, wherein an input path for conveying the stream of symbols from the remote user terminal to the processor and an output path for conveying the graphical output from the processor to a display on the remote user terminal are separate and independent paths, without any electronic interaction between the input and output paths within the remote user terminal.