Lattice Cryptography Engine With Custom Instructions for Speed and Flexibility
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Solution Overview
Problem
Existing public-key cryptosystems are vulnerable to quantum computers and lack flexibility and efficiency in adapting to evolving security requirements, with full hardware implementations offering superior performance but at the cost of longer design cycles and reduced flexibility, while software-based approaches are slower.
Innovation Solution
A lattice-based cryptography engine with a hardware controller and tailored instruction set, implemented on FPGA or ASIC platforms, that provides flexible and efficient cryptographic operations by dynamically accommodating new instructions and adapting to security standards updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If full hardware implementation is used, then cryptographic operation speed is improved, but design cycle increases and flexibility decreases
Solution Approach 1:
The cryptographic engine is divided into multiple independent hardware units (arithmetic unit, logic unit, control unit) that can be individually configured and programmed. This segmentation allows the system to achieve hardware-level speed while maintaining flexibility through programmable instruction sets that can be updated without redesigning the entire system.
Solution Approach 2:
The patent implements a dynamic instruction set architecture where the hardware units can be reconfigured through updated instruction sets. The control unit receives and executes variable instructions that allow the same hardware to adapt to different cryptographic algorithms and security standards, enabling the system to evolve with changing requirements while maintaining hardware acceleration performance.
2Speed
If full hardware implementation is used, then cryptographic operation speed is improved, but design complexity increases
Solution Approach 1:
The patent creates a universal cryptographic engine architecture where the same hardware units can perform multiple cryptographic operations through different instruction sets. The arithmetic unit and logic unit are designed to be multi-functional, handling various lattice-based cryptographic operations (key generation, encryption, decryption, signature verification) without requiring separate dedicated hardware for each function, thus reducing overall design complexity.
Solution Approach 2:
The control unit serves as an intermediary that manages the complexity between the simple hardware units and the diverse cryptographic requirements. It translates high-level cryptographic operations into specific instruction sequences that the hardware units can execute, shielding the hardware design from the complexity of evolving cryptographic standards while maintaining fast execution.
3Adaptability or versatility
If software-based cryptography is used, then flexibility is improved, but execution speed decreases
Solution Approach 1:
The patent replaces software-based cryptographic operations with hardware-accelerated execution. The arithmetic units and logic units perform cryptographic calculations directly in hardware, substituting the slow software computation mechanism with fast hardware computation while maintaining flexibility through programmable instruction sets. This substitution achieves both high speed and adaptability.
Data Source
AI summary
A lattice-based cryptography engine includes an interface configured to receive a lattice-based cryptographic operation request including corresponding operands. A register map is configured to store the operands and response to the request. A controller is coupled to receive the operands and output a sequence of instructions responsive to the request. A plurality of hardware units is coupled to receive and execute the instructions to generate the response. Each instruction is designated for one of the plurality of hardware units. A memory is coupled to the hardware units.