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We know that data diode is using one-way communication, how could we confirm that the data has been transferred securely with no loss?

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  • Mar 18, 2021

We know that data diode is using one-way communication, which means that there is no ACK for received data, how could we confirm that the data has been transferred securely with no loss

Asked by: - Cybersecurity Consultant

This question was posed during a recent Energy Central PowerSession: Data Diodes 101: Protecting the Grid with Hardware

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Advanced data diodes have built-in mechanisms to confirm that all data is transferred without errors.  This can take the form of forward error correction, hash codes, and byte counters that are transferred from the source to the destination.  If an error or discrepancy is identified, the outgoing proxy server can be configured to send out a notification, such as a syslog message or email alert to notify system administrators that a data error has occurred.  This is such a rare event that it typically indicates a hardware failure or misconfiguration that requires system maintenance. 

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