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Calculation method and device based on remainder

An operation method and the technology of a remainder finder, which are applied in the computer field, can solve problems such as low operation efficiency, high power consumption, and high operation pressure, and achieve the effects of improving operation efficiency, reducing power consumption, and reducing operation pressure

Active Publication Date: 2021-11-02
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Problems solved by technology

[0004] The embodiment of the present invention provides a computing method and device based on a remainder finder, which is used to solve the problems in the prior art that the computing pressure is very high, the computing efficiency is very low, and the power consumption is large

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  • Calculation method and device based on remainder

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Embodiment Construction

[0055] Aiming at the problems in the prior art that the operation pressure is very high, the operation efficiency is very low, and the power consumption is large, an embodiment of the present invention provides an operation method based on a remainder, where the remainder includes a multiplier and a first adder. , the second adder, the third adder, the fourth adder, the memory and the selector, the flow of the method is as follows figure 1 As shown, the execution steps are as follows:

[0056] S11: After obtaining the first multiplier and the second multiplier, call the multiplier to calculate the product of the first multiplier and the second multiplier.

[0057] In the RSA encryption algorithm, two multipliers need to be multiplied, one of which is defined as the first multiplier, and the other multiplier can be defined as the second multiplier. When calculating the product of these two multipliers, you can Call the multiplier for calculation.

[0058] S12: respectively ca...

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Abstract

The invention discloses an operation method and device based on a remainder. The method includes: after obtaining the first multiplier and the second multiplier, calling the multiplier to calculate the first multiplier and the second multiplier The product of the number; respectively call the first adder, the second adder, the third adder and the fourth adder to calculate the sum of the product and the corresponding set value; call the A selector selects a selected adder from the first adder, the second adder, the third adder, and the fourth adder according to the four sum values; according to the selected adder The corresponding sum value and the maximum value stored in the memory determine the partial remainder corresponding to the product. Compared with the prior art, this solution greatly reduces the computing pressure of the remainder finder, greatly improves the computing efficiency, and greatly reduces the power consumption.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a computing method and device based on a remainder. Background technique [0002] With the rapid improvement of computer computing speed and the increasingly powerful distributed computing power of the Internet, the classical RSA public key cryptosystem has become less and less secure when the key length is 1024 bits. At present, in order to ensure the security of users, it is an inevitable trend to increase the length of the RSA key. However, with the development of the key length from 1024 bits to 2048 bits, or even 4096 bits, the security system can increase its inherent security, but the encryption and decryption efficiency will become lower and lower, and the requirements for the computer system will also be improve. Therefore, an RSA hardware system with higher execution efficiency is required to improve the efficiency of the encryption and decryption system. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F7/52
Inventor 王千喜张庆胜王绍刚
Owner AEROSPACE INFORMATION
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