CN104618095A - Portable encrypting machine - Google Patents

Abstract

The invention discloses a portable encrypting machine. The encrypting machine is that a U disk controller is used as a USB device interface for receiving and sending data; the FPGA is adopted to enable a NandFlash Interface and an encryption algorithm module; the configuration of the FGPA is controlled through an MCU of the U disk controller; the NandFlash Interface and the encryption algorithm module in the FPGA are connected through a Data Buffer. The portable encrypting machine is reasonable in structural design and convenient to use; the data information of individual users can be effectively uploaded to the cloud in a complete state and without damage and being stolen, and therefore, the safety and privacy of the users using a cloud system can be ensured.

Description

A kind of portable ciphering unit

Technical field

The present invention relates to data security field of storage, be specifically related to a kind of portable ciphering unit.

Background technology

Cloud computing (English: Cloud Computing) is a kind of account form based on the Internet, and in this way, the software and hardware resources shared and information can be supplied to computer and other equipment as required.Typical cloud computing provider often provides general Network application, can be visited, and software and data all stores on the server by the softwares such as browser or other Web services.Cloud computing service provides the general online business application by browser access usually, and software and data can be stored in data center.

Cloud computing is the increase of related service based on the Internet, use and delivery mode, is usually directed to provide dynamically easily expansion by the Internet and is often virtualized resource.

When the core of cloud computing system computing and process is the store and management of mass data, just need in cloud computing system to configure a large amount of memory devices, so cloud computing system is just transformed into a cloud storage system, so the cloud computing system that cloud storage is is core with data store and management.

The feature of cloud computing:

1, safety, cloud computing provides the most reliable, safest data storage center, and user need not the trouble such as concern of data loss, poisoning intrusion again.

2, convenient, it is minimum to the equipment requirement of user side, uses easily.

3, data sharing, it easily can realize data between distinct device and Application share.

4, infinitely may, it for we use network provide almost much unlimited may.

This is the epoch of large data, especially the network sensor of more than one hundred million for one-tenth ten thousand meter is embedded in the various equipment of real world by Internet of Things, as mobile phone, intelligent electric meter, automobile and industrial machine etc., be used for perception, create and swap data, ubiquitous sensing network brings a large amount of data, and these data become and physical capital and human resources production factors of equal importance just day by day.

Meanwhile, cloud computing provides good memory space for the mass data that Internet of Things produces, and makes real-time online be treated as possibility.The particularly concept that makes new advances of cloud computing conception deriving---cloud stores, the functions such as cluster application, grid or distributed file system can be passed through, various dissimilar memory device a large amount of in network is gathered collaborative work by application software, a system of data storage and Operational Visit function is externally provided jointly.

Along with cloud computing application popularization, the private data of oneself can be uploaded to cloud by increasing user, however the protection of cloud operator to user's private data do and not in place, namely user's private data is OPEN to operator.Therefore, how user's uploading data is protected, and is the necessary component of cloud security.

Summary of the invention

The technical problem to be solved in the present invention is: the final goal of portable ciphering unit ensures that the data message of personal user is complete when uploading cloud, is not damaged, is not stolen.

The technical solution adopted in the present invention is:

A kind of portable ciphering unit, described encryption equipment is using general USB flash disk controller as USB Device interface and send data, realizes NandFlash (NF) Interface and enciphering and deciphering algorithm module by FPGA; The configuration of FPGA is controlled by the MCU in USB flash disk controller; Connected by Data Buffer between NF Interface and enciphering and deciphering algorithm module in FPGA.

Described Data Buffer is realized by the inner BlockRAM of FPGA, and data are without the need to being stored in outside sheet.

Described encryption equipment use procedure is as follows:

User needs the data uploaded first can enter encryption equipment by USB interface, and data return Host end by USB interface again after encryption, upload cloud more afterwards by network;

In like manner, after user data is downloaded by cloud, first enter encryption equipment by USB interface and carry out data deciphering, then return Host end by USB port, user normally uses.

Note: NandFlash---NOR and NAND is existing commercially two kinds of main nonvolatile flash memory technology.First Intel developed NOR flash technology in 1988, revolutionized the situation originally ruled all the land by EPROM and EEPROM.And then, 1989, Toshiba delivered NAND flash structure, emphasized the cost reducing every bit, higher performance, and easily can be upgraded by interface as disk.Enable nand gate can provide high cell density, can reach high storage density, and the speed of write and erasing is also very fast.

Beneficial effect of the present invention is: reasonable in design of the present invention, easy to use, can the data message of effective guarantee personal user complete when uploading cloud, be not damaged, be not stolen, the fail safe of user and privacy when having ensured that cloud system uses.

Accompanying drawing explanation

Fig. 1 is portable ciphering unit block architecture diagram of the present invention.

Embodiment

With reference to the accompanying drawings, by embodiment, the present invention is further described:

Embodiment 1:

As shown in Figure 1, a kind of portable ciphering unit, described encryption equipment is using general USB flash disk controller as USB Device interface and send data, realizes NandFlash (NF) Interface and enciphering and deciphering algorithm module by FPGA; The configuration of FPGA is controlled by the MCU in USB flash disk controller; Connected by Data Buffer between NF Interface and enciphering and deciphering algorithm module in FPGA.

Embodiment 2:

On the basis of embodiment 1, Data Buffer described in the present embodiment is realized by the inner BlockRAM of FPGA, and data are without the need to being stored in outside sheet.

Embodiment 3:

On the basis of embodiment 1 or 2, described in the present embodiment, encryption equipment use procedure is as follows:

User needs the data uploaded first can enter encryption equipment by USB interface, and data return Host end by USB interface again after encryption, upload cloud more afterwards by network;

In like manner, after user data is downloaded by cloud, first enter encryption equipment by USB interface and carry out data deciphering, then return Host end by USB port, user normally uses.

Above execution mode is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.

Claims (3)

1. a portable ciphering unit, is characterized in that: described encryption equipment is using general USB flash disk controller as USB Device interface and send data, realizes NandFlash Interface and enciphering and deciphering algorithm module by FPGA; The configuration of FPGA is controlled by the MCU in USB flash disk controller; Connected by Data Buffer between NandFlash Interface and enciphering and deciphering algorithm module in FPGA.

2. a kind of portable ciphering unit according to claim 1, is characterized in that: described Data Buffer is realized by the inner BlockRAM of FPGA.

3. a kind of portable ciphering unit according to claim 1 and 2, is characterized in that, described encryption equipment use procedure is as follows:

User needs the data uploaded first can enter encryption equipment by USB interface, and data return Host end by USB interface again after encryption, upload cloud more afterwards by network;

In like manner, after user data is downloaded by cloud, first enter encryption equipment by USB interface and carry out data deciphering, then return Host end by USB port, user normally uses.