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Encrypted U disk and authorization method

An encryption algorithm and selective encryption technology, applied in the field of storage, can solve problems such as changing the data storage space of U disk, and achieve the effect of sufficient encryption algorithm, more storage space, and improved storage efficiency

Active Publication Date: 2022-03-11
广东全芯半导体有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention provides an encrypted U disk and an authorization method, which can solve the problem of changing the data storage space of the U disk without increasing the capacity of the U disk

Method used

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Embodiment Construction

[0060] In order to make the objects and advantages of the present invention, the present invention will be further described below in connection with the embodiments;

[0061] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. It will be understood by those skilled in the art that these embodiments are merely illustrative of the technical principles of the invention, and are not intended to limit the scope of the invention.

[0062] It should be noted that the term "upper", "lower", "left", "left", ",", ",", ",", ",", ",",, is, based on the figures The direction or positional relationship is shown, which is merely intended to be described, rather than indicating or implying that the device or element must have a specific orientation, and is not understood to limit the limitation of the invention.

[0063] Further, it is also necessary to explain that in the description of the present invention, the term "mount", "co...

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Abstract

The invention relates to an encrypted U disk and an authorization method, wherein the encrypted U disk includes a USB interface for receiving data to be encrypted transmitted by a host; a detection unit for detecting the amount of data to be encrypted; a buffer, the buffer includes a The first address list, the second address list, the third address list and the fourth address list set up next time, the data storage area is used to store the encrypted data; the central control unit is connected with the detection unit, the buffer and the data respectively The storage areas are respectively connected to select corresponding encryption rules from the buffer area according to the detection results of the detection unit, encrypt the data to be encrypted and store it in the data storage area. By partitioning the addresses in the cache area, the encryption rules in different address partitions are selected according to the actual data volume to encrypt the data to be encrypted, making the data encryption more intelligent, and realizing the storage speed and speed of data storage. Storage security is double guaranteed.

Description

Technical field [0001] The present invention relates to the field of storage technologies, in particular to an encrypted U disk and an authorization method. Background technique [0002] Today, the use of high-speed electronic information technology, for information storage and information storage security into people's concerns, and the U disk as a device of independent storage data, due to its small and easy-to-carry characteristics, make it favored by people The U disk is widely used. [0003] However, the space occupied by the memory of the encryption algorithm in the U disk is large, so that the actual data store has limited space, so that the storage space of the U disk is greatly compressed, and in order to increase the storage space, the U disk is used. Capacity is improved, thereby increasing costs. Inventive content [0004] To this end, the present invention provides an encrypted U disk and an authorization method, which can solve the problem of changing the U disk da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/79G06F21/60
CPCG06F21/79G06F21/602
Inventor 李锦光
Owner 广东全芯半导体有限公司
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