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Data stream encryption and decryption method, electronic equipment and chip system

A technology of encryption and decryption and data flow, which is applied in the field of information security, can solve the problems of low performance of data flow encryption and decryption, slow data processing speed, etc., and achieve the effect of improving performance and data processing speed

Pending Publication Date: 2021-12-03
BEIJING HONGSI ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since these modules belong to one-way transmission, the encryption and decryption module cannot receive the data to be encrypted and decrypted and send the encrypted and decrypted data at the same time

Method used

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  • Data stream encryption and decryption method, electronic equipment and chip system
  • Data stream encryption and decryption method, electronic equipment and chip system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example 1

[0039] This embodiment provides a data stream encryption and decryption method, such as figure 1 shown, including:

[0040] Step 101, the main control module is powered on;

[0041] Step 102, the main control module calls the first sending and receiving interface module, and the first sending and receiving interface module receives the data and stores the data in the first DRAM module;

[0042] Step 103, the main control module calls the first sending and receiving interface module and the encryption and decryption module at the same time, the first sending and receiving interface module receives the data and stores the data in the second DRAM module, and the encryption and decryption module performs the data stored in the first DRAM module at the same time. The encryption and decryption operation obtains encryption and decryption data, and stores the obtained encryption and decryption data in the third DRAM module;

[0043] Step 104, the main control mod...

Example Embodiment

[0064] Embodiment 2

[0065] This embodiment provides a data stream encryption and decryption method, such as figure 2 shown, including the following steps:

[0066] Step 201, the main control module is powered on;

[0067] In this embodiment, the DRAM module may be a random access memory, and its space size is limited, so the data to be encrypted and decrypted needs to be sent and processed in packets.

[0068] In this embodiment, after the main control module is powered on, it obtains the length of the data to be encrypted and decrypted from the data processing requester, and calculates the transmission data of the data to be encrypted and decrypted according to the length of the data to be encrypted and decrypted and the capacity of a single DRAM module. The number of packets, that is, how many packets of data to be encrypted and decrypted need to be sent;

[0069] Specifically, the number of data packets sent is calculated according to the quotient value obtained by di...

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Abstract

The invention discloses a data stream encryption and decryption method, which comprises the following steps: when a main control module calls a first sending and receiving interface module, the first sending and receiving interface module receives data and stores the data in a specified DRAM module according to a calling instruction; when the master control module calls the encryption and decryption module, the encryption and decryption module performs encryption and decryption operation on data stored in the specified DRAM module according to a calling instruction to obtain encryption and decryption data, and stores the encryption and decryption data in another specified DRAM module; and when the main control module calls the second sending and receiving interface module, the second sending and receiving interface module sends the encrypted and decrypted data stored in the specified DRAM module according to the instruction. According to the method, data stream receiving, encryption and decryption data processing and sending are carried out at the same time, the data stream encryption and decryption performance is improved, and the data processing speed is increased.

Description

technical field [0001] The invention relates to the field of information security, in particular to a data stream encryption and decryption method, electronic equipment and a chip system. Background technique [0002] In the SoC encryption system, the data transmission and reception interface module and the encryption and decryption module are usually used in the process of data stream encryption. In the prior art, usually after the first transmission and reception interface module receives the data, the The data is sent to the encryption and decryption module for encryption and decryption operations. The encryption and decryption module sends the encrypted and decrypted data to the second sending and receiving module through the second direct memory access module, and the second sending and receiving module sends the encrypted and decrypted data. Since these modules belong to one-way transmission, the encryption and decryption module cannot receive the data to be encrypted ...

Claims

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Application Information

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IPC IPC(8): G06F21/60
CPCG06F21/602G06F21/606
Inventor 张建龙曹军吴晓彤李会同
Owner BEIJING HONGSI ELECTRONICS TECH
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