Method and system for realizing reconfiguration of multiple hash algorithms

Abstract

The invention discloses a method and system for realizing reconfigurable multiple hash algorithms, and relates to the field of network security, and the method comprises the steps: dividing to-be-authenticated data into a plurality of message blocks, and storing the initial values and constant data Kt of four algorithms: SHA-1, SM3, SHA-224 and SHA-256; expanding the SHA-1 algorithm into 80 piecesof expansion data, and expanding the SHA-224 or SHA-256 algorithm into 64 pieces of expansion data to obtain Wt; expanding the SM3 algorithm into 132 pieces of expanded data to obtain Wt and Wt '; starting from the initial value corresponding to the selected algorithm, performing 64 or 80 rounds of iterative compression operation on each message block in combination with Kt, Wt and Wt 'to obtainan intermediate hash value; and taking the intermediate hash value of the previous message block as an iterative initial value of the next message block, and calculating again until all the to-be-authenticated data is calculated. The invention can be applied to various scenes needing hash calculation, and the depth of a reconfigurable level is improved.

Description

technical field [0001] The invention relates to the field of network security, in particular to a method and system for realizing the reconfigurability of multiple hash algorithms. Background technique [0002] With the rapid development of electronic information technology in today's world, the emergence of vicious attack methods such as viruses, hacker attacks, and electronic fraud has seriously threatened user data. If computers and communication equipment are attacked, it will cause information leakage and economic losses at the personal level, and at the serious level, it will cause the loss of important information at the national level, which will threaten national security and cause social unrest. In this environment, information security is particularly important. How to ensure data security in the process of information transmission has always been an issue of widespread concern in the society, and it is also a hot spot in current academic and industry research. ...

AI Technical Summary

Problems solved by technology

At present, the research on the implementation of the hash algorithm mainly focuses on two aspects: first, the high-speed design of a single hash algorithm, for each different algorithm, strategies such as multi-round expansion or critical path optimization to achieve high throughput of hash operations , but the designed hardware structure can only implement a single algorithm, and the configurability is poor

Second, two or more hash algorithms can be reconfigured and implemented. A single IP implements multiple hash algorithms. It is determined which algorithm is used to complete the calculation of the current input data through configuration registers or control signals, but the currently public ones can be reconfigured The configuration logic is reconfigurable for common modules such as control logic, buffer storage logic, and message filling grouping. For core operations such as message expansion and round functions, the reconfigurable level is not deep enough.

Images