Q-Net Security, Inc.

Jeremiah Cox O'Driscoll

Jerome R Cox, Jr

George Lawrence Engel

Wesley A Clark

David Michael Zar

Cryptographic techniques are disclosed which employ at least a five-pass protocol (5PP) for a cryptographic exchange of a secret data matrix between two computer systems. This 5PP approach improves the functioning of the computer systems by making their encrypted communications more resistant to potential quantum computing-based attacks while still resisting brute-force attacks by eavesdroppers. For example, the 5PP approach can be used to improve public-key cryptography. The system may comprise a first computer system and a second computer system, where a secret data matrix is known by the first computer system but is not shared with the second computer system in unobscured form. The first and second computer systems can be configured to communicate with each other over a network to share a series of at least five messages in at least five passes between each other that collectively hide the secret data matrix using reversible logic operations that obscure the secret data matrix according to at least five parameters of which (1) at least two are known by the first computer system but are not shared with the second computer system in unobscured form and (2) at least three are known by the second computer system but are not shared with the first computer system in unobscured form.

Method and system for secure cryptographic exchanges using a five-pass protocol

One embodiment includes hardware-based cybersecurity devices that create a physical barrier ('hardware security barrier') between a computer's (or other device's) processor and a public or private network. Hardware security barriers typically use immutable hardware in accomplishing cybersecurity activities including generating and distributing cryptographically secure numbers, encryption, decryption, source authentication, and packet integrity verification. This hardware security barrier protects against remote threats and guarantees that all exported and received data are strongly encrypted. A hardware security barrier can be included in any computing or networking device that contains a network interface. One embodiment of a hardware security barrier is implemented as part of a network interface, such as, but not limited to being part of a network interface controller, or as a standalone unit between a communications interface of a host system and a connection to a network.

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Maryland Heights, MO, United States of America

Jeremiah Cox O'Driscoll