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SM3 message processing method and device

A message processing and message technology, applied in the field of communication, can solve the problems of low efficiency of SM3 message expansion, high overhead of SM3 message processing device, etc., and achieve the effects of reducing the steps of generating expansion words, reducing overhead, and improving efficiency

Active Publication Date: 2016-12-14
XFUSION DIGITAL TECH CO LTD
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Problems solved by technology

[0005] Embodiments of the present invention provide a SM3 message processing method and device, which are used to solve the problem that when the SM3 message processing device in the prior art expands the SM3 message according to the SM3 cryptographic hash algorithm, multiple instructions need to be executed to generate an extended word, so that The overhead of the SM3 message processing device is large, and the technical problem of SM3 message expansion is low efficiency

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Embodiment approach

[0152] Another aspect of the embodiments of the present invention also provides a storage medium, which may be a non-volatile computer-readable storage medium. A non-volatile computer-readable storage medium stores at least one program. Each program includes instructions. The instructions, when executed by an electronic device having a processor, a transceiver, and an output device, cause the electronic device to perform a method embodiment of the present invention, including:

[0153] According to the first source message word distributed in the first operand, the second operand, and the third operand, obtain the intermediate words of at least 4 destination extended message words, wherein the first operands with adjacent numbers in the first operand The storage addresses of the source message words are continuous, the storage addresses of the first source message words with adjacent numbers in the second operand are continuous, the storage addresses of the first source messa...

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Abstract

The embodiment of the invention provides an SM3 message processing method and device. The method comprises the steps of obtaining middle words of at least four destination expansion message words according to first source message words distributed in a first operand, a second operand and a third operand; and obtaining the at least four destination expansion message words according to second source message words distributed in the third operand and a fourth operand, and the middle words of the at least four destination expansion message words. According to the SM3 message processing method and device provided by the embodiment of the invention, when an SM3 message processing device expands an SM3 message according to an SM3 cryptographic hash algorithm, a step of generating expansion words is reduced, the overhead of the SM3 message processing device is reduced, and the SM3 message expansion efficiency is improved.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to a SM3 message processing method and device. Background technique [0002] The SM3 cryptographic hash algorithm is a commercial algorithm compiled by the State Cryptography Administration. This algorithm can generate a hash value of the message by expanding and iteratively compressing the message, so as to realize the digital signature and verification of the cryptographic application and the generation of the message authentication code. And verification and random number generation, which can meet the security requirements of various cryptographic applications. Among them, a message processed using the SM3 cryptographic hash algorithm is called an SM3 message. A device that processes messages using the SM3 cryptographic hash algorithm is called an SM3 message processing device. [0003] Take an SM3 message composed of 16 32-bit words as an example. In th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/06
CPCG06F9/30007H04L9/0643
Inventor 杨胜凯
Owner XFUSION DIGITAL TECH CO LTD
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