A low computing power device storage encryption methodLow-computing-capacity equipment storage encryption method
A technology of computing power and encryption method, applied in computing, computer security devices, protection of internal/peripheral computer components, etc., can solve the problems of high CPU computing power requirements, small memory, inability to use encryption methods, etc. Effect
Inactive Publication Date: 2019-09-20
SHENZHEN ELINK SMART CO LTD
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Problems solved by technology
[0004] At present, smart devices are widely used. These devices store some important information, such as personal information, passwords, biometric passwords, etc. If these data are stolen, they may be used illegally and cause losses to others.
[0005] At the same time, the memory of many such devices is very small, the computing power is very weak, and complex encryption methods such as AES cannot be used, and the computing power of the CPU is high, the calculation is complicated, and the time and space requirements are large. Therefore, if there is a simple The encrypted storage method can greatly improve the security
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[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0022] see figure 1 , a storage encryption method 1 of a device with low computing power in the present invention includes the following steps,
[0023] S1: Divide the storage space into blocks according to the preset space size;
[0024] S2: The system randomly generates an offset vector table with the same number of blocks as in step S1;
[0025] S3: Write the data of each block into the memory one by one according to the offset vector table;
[0026] S4: When decrypting or reading, read the memory one by one according to the offset vector table;
[0027] S5: Storage encryption is completed. ...
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The invention provides a low-computing-capacity equipment storage encryption method, which comprises the following steps of S1, partitioning a storage space according to a preset space size; s2S2, the system randomly generates an offset vector table with the same block number as the blocks divided in the step S1; s3S3, writing the data of each block into a memory one by one according to the offset vector table; s4S4, during decryption or reading, reading the memories one by one according to the offset vector table; s5S5, completing storage encryption, the method is suitable for simple equipment devices. Acquisition module such as fingerprint head, various sensors in the smart home and such devices are usually composed of single-chip microcomputers / low-end MCUs and sensor sensors, the computing power is weak, but some important data such as fingerprint information and networking keys can be stored, and the stored data can be simply encrypted by utilizing a simple encryption mode and is not easy to crack.
Description
[0001] [technical field] [0002] The invention relates to the technical field of device storage encryption methods, in particular to a storage encryption method for devices with low computing capabilities that is highly secure and difficult to be cracked. [0003] [Background technique] [0004] At present, smart devices are widely used, and these devices store some important information, such as personal information, passwords, biometric passwords, etc. If these data are stolen, they may be used illegally and cause losses to others. [0005] At the same time, the memory of many such devices is very small, the computing power is very weak, and complex encryption methods such as AES cannot be used, and the computing power of the CPU is high, the calculation is complicated, and the time and space requirements are large. Therefore, if there is a simple The encrypted storage method can greatly improve security. [0006] Based on this, those skilled in the art have carried out a l...
Claims
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Login to View More IPC IPC(8): G06F21/60G06F21/78
CPCG06F21/602G06F21/78
Inventor 柯浩伟
Owner SHENZHEN ELINK SMART CO LTD