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SNOW-V algorithm accelerator applied to 5G system and acceleration method thereof

An accelerator and algorithm technology, applied in the direction of transmission system, digital transmission system, encryption device with shift register/memory, etc., can solve the problem that the running speed of the algorithm cannot meet the actual needs, etc., and achieve less complex calculation circuits and meet super High-speed encryption, hardware-friendly effects

Pending Publication Date: 2022-02-11
NANJING UNIV
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Problems solved by technology

[0005] In the existing technology, although SNOW-V is mainly optimized for the software implementation that becomes more and more important in the virtualized 5G network, the speed of the algorithm still cannot meet the actual needs

Method used

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  • SNOW-V algorithm accelerator applied to 5G system and acceleration method thereof
  • SNOW-V algorithm accelerator applied to 5G system and acceleration method thereof
  • SNOW-V algorithm accelerator applied to 5G system and acceleration method thereof

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Embodiment Construction

[0035] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0036] In one embodiment, aiming at the fact that the running speed of the SNOW-V algorithm in the prior art still cannot meet the actual needs, a SNOW-V algorithm accelerator applied to the 5G system is proposed, such as figure 1 As shown, the SNOW-V algorithm accelerator proposed in this embodiment includes an LFSR module and an FSM module. in, figure 1 The left half is the LFSR module, and the right half is the FSM module. The LFSR module is a circular structure composed of two shift registers LFSR-A and LFSR-B. The FSM module mainly includes 128-bit regis...

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Abstract

The invention provides an SNOW-V algorithm accelerator applied to a 5G system and an acceleration method of the SNOW-V algorithm accelerator. The accelerator comprises an LFSR module which is composed of two shifting registers and a circulation structure and used for generating data needed by SNOW-V algorithm operation. The accelerator further comprises an FSM module composed of a register, an adder and an AES encryption wheel; a key stream is finally generated and continuously output through cyclic calculation among units in the FSM module, and a ciphertext is obtained after the key stream and a plaintext are subjected to XOR. The hardware architecture provided by the invention is high in resource utilization rate, and the key stream can be quickly generated; meanwhile, the ultra-high-speed encryption requirement of a 5G system can be met in the future.

Description

technical field [0001] The invention relates to a SNOW-V algorithm accelerator and an acceleration method applied to a 5G system, in particular to the technical field of hardware accelerators. Background technique [0002] Stream ciphers have always played an important role in protecting the security of 3GPP (3rd Generation Partnership Project) mobile phone systems. The GSM (Global System for Mobile Communications) communication system adopted the A5 series of encryption algorithms. After that, SNOW 3G became the guarantee for UMTS (Universal MobileTelecommunications System) and one of the core algorithms of LTE (Long Term Evolution) system integrity and confidentiality. In the 5G era, some fundamental changes have taken place in the system architecture and security level of the next-generation systems, which in many cases make the previous algorithms invalid. [0003] The 4G system defines three different possible algorithms for integrity (128-EIAx) and confidentiality (12...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06
CPCH04L9/0631
Inventor 李丽赵仁港傅玉祥梁晨李伟何书专
Owner NANJING UNIV
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