A method to implement SHA-1 algorithm using GPU

Abstract

The invention discloses a method for implementing the SHA-1 algorithm by using a GPU, which includes the following steps: (1) implementing the SHA-1 algorithm on a general-purpose CPU; (2) transplanting the program to the GPU, and performing preprocessing according to the following method Processing: a. Create an empty function body; B. Copy the parameters from the main memory to the global matching storage space of the GPU through the parameter pointer, and copy the result from the global matching storage space of the GPU back to the main memory; C. Add device configuration modifier; D. Synchronize. The present invention provides a method for implementing the SHA-1 algorithm by using the GPU, utilizing the rapidly developing graphics hardware technology, adopting the CUDA parallel computing architecture of NVIDIA Corporation for parallel implementation, and using the GPU as a parallel computing device for program release and management operations, with flexible It has good performance, reduces CPU load, improves the processing performance of information security equipment, improves computing efficiency, and has the advantages of high security in the computing process.

Description

technical field [0001] The invention relates to the field of information security processing, in particular to a method for implementing the SHA-1 algorithm by using a GPU. Background technique [0002] With the continuous development of information technology, the contact between people is more and more frequent, distance is no longer a problem, and security issues have aroused people's close attention in the process of information transmission. Digital signature is an important aspect of the development of electronic information technology. The product is a signature confirmation method for electronic documents. Its purpose is to mark the legality and authenticity of digital objects and provide the signer's commitment. With the widespread use of information technology, especially e-commerce, With the rapid development of e-government, the demand for digital signature applications is increasing. Its implementation not only requires the correctness of execution, but also is ...

AI Technical Summary

Problems solved by technology

[0004] SHA (Secure Hash Algorithm, translated as Secure Hash Algorithm) is designed by the National Security Agency (NSA) and released by the National Institute of Standards and Technology (NIST). A series of cryptographic hash functions, the SHA-1 algorithm can calculate messages with a length of no more than 264 bits, and generate a 160-bit information summary as an output. In the implementation of information security equipment, a large number of information summary operations such as SHA-1 are required At present, the commonly used SHA-1 algorithm has disadvantages such as poor flexibility, high CPU load, poor processing performance of information security equipment, low operation efficiency, and poor operation process security.