Accelerator for accelerating security hash algorithm

Abstract

The invention provides an accelerator for accelerating a security hash algorithm. The accelerator comprises a storage module, a PE operation module, a task division module and an algorithm mapping module. Compared with the prior art, the method has the advantages that the calculation time overhead can be reduced, and the calculation performance is improved; secondly, the power consumption caused by calculation can be reduced; and, besides, high-throughput calculation of the safety hash function can be achieved, the hash rate is remarkably increased, and a computer system designed through the method has good expandability and compatibility.

Description

technical field [0001] The invention belongs to the field of computer architecture, and in particular relates to an accelerator for accelerating a safe hash algorithm. Background technique [0002] With the rise of digital currency, secure hash functions have entered the field of vision of researchers. A secure hash function is a function that implements a secure hash algorithm. Secure Hash Algorithm (SHA for short) is a commonly used data encryption algorithm, which can realize functions such as data confidentiality, data modification prevention and identity verification, and is widely used in the fields of cryptography, e-commerce and information security. The secure hash algorithm can calculate a fixed-length string corresponding to a digital message, and if the input messages are different, they have a high probability of corresponding to different strings. The SHA series algorithms can be divided into two categories: SHA-1 and SHA-2. Among them, SHA-1 is designed by t...

AI Technical Summary

Problems solved by technology

[0004] The first type of solution is to use multiple processors to calculate multiple hash values ​​​​in parallel. The problem with this type of method is not only that it will bring large power consumption, but also for each processor, the speedup ratio does not change. ;

[0005] The second type of solution is to use the compiler to optimize the instructions of the original secure hash algorithm at the software level, but the secure hash function is optimized by the compiler due to the complex operation, large number of instructions, and serious data dependence between instructions. The effect is not obvious;

[0006] The third type of solution is to customize dedicated acceleration circuits for secure hash functions, but secure hash function clusters include many functions and develop rapidly, and dedicated circuits have disadvantages such as poor scalability and poor compatibility.

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