CN210518366U

CN210518366U - USB network card with encryption and decryption functions

Info

Publication number: CN210518366U
Application number: CN201922444925.6U
Authority: CN
Inventors: 卢培文; 张洪柳; 张�杰
Original assignee: Qingdao Fangcun Microelectronic Technology Co ltd; Shandong Fangcun Microelectronics Technology Co Ltd
Current assignee: Qingdao Fangcun Microelectronic Technology Co ltd; Shandong Fangcun Microelectronics Technology Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-05-12
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a and computer and network technical field specifically, relate to a USB network card with encryption and decryption function. The utility model provides a USB network card with encryption and decryption function, including shell and PCBA, the USB3.0 interface is installed to PCBA's left end, and the RJ45 net gape is installed to the right-hand member, and the network passes through the RJ45 net gape and connects through network PHY chip and encryption and decryption chip, and the encryption and decryption chip passes through the USB3.0 interface and is connected with the computer, and data process transmits between network and computer after the encryption and decryption chip is handled.

Description

USB network card with encryption and decryption functions

Technical Field

The utility model relates to a and computer and network technical field specifically, relate to a USB network card with encryption and decryption function.

Background

The internet is a huge network formed by connecting networks in series, the networks are connected by a group of general protocols to form a single and huge logic global network, and the network comprises network equipment such as switches, routers and the like, various connection links, various servers and various computers and terminals. The information can be instantly sent to people beyond thousands of miles by using the internet, and the internet is the foundation of the information society.

Since the internet did not consider the issue of data packet security early on, the early idea was based on communicating. At present, with the rise of networks, a plurality of criminal groups are slowly arranged on the internet, and data messages of other people are stolen, tampered and replayed by technical means. Therefore, the security of network data transmission is an urgent problem to be solved in the field of information security.

At present, a software encryption mode is mainly used, data is encrypted at a computer end through software, the data is easy to be cracked by others, and meanwhile, excessive system resources are occupied. The data encryption and decryption all use corresponding keys, and the security of data transmission is greatly reduced by a mode of distributing the keys through a network.

Partial equipment in the market adopts a mode of integrating an encryption chip with a mainboard or externally hanging an encryption card, so that the speed is low, the cost is high, and the hardware upgrading of a computer in the later period is not easy. The invention provides an external hardware-level network encryption device which encrypts and decrypts network data transmission through an encryption and decryption chip.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem who mentions in the above-mentioned background art, the utility model provides a USB network card with encryption and decryption function, including shell and PCBA, the USB3.0 interface is installed to PCBA's left end, and the RJ45 net gape is installed to the right-hand member, and its characterized in that, the network passes through the RJ45 net gape and connects through network PHY chip and encryption and decryption chip, the encryption and decryption chip passes through USB3.0 interface and computer connection, the data process the transmission between network and computer after the encryption and decryption chip is handled.

Preferably, the encryption and decryption chip performs an encryption and decryption algorithm on the data, and performs encryption and decryption processing on the data.

Preferably, the encryption and decryption chip generates an encryption and decryption key and manages the key.

Preferably, a network transformer is mounted on the PCBA.

Preferably, the network transformer is installed between the network PHY chip and the RJ45 network port.

Preferably, two through holes are formed in the PCBA close to the left side of the RJ45 net port.

Preferably, the through holes are symmetrically formed in the upper side and the lower side of the network transformer.

Preferably, the aperture of the through hole is 2.5 mm.

Preferably, the USB3.0 interface is a USB3.0 Type male connector, and conforms to the USB3.0 standard.

Preferably, the housing dimensions are 95 × 33 × 22 mm.

The utility model has the advantages that: the utility model uses hardware encryption measures to improve data security; the occupation of CPU resources is reduced, and the processing efficiency of the system is improved; the size is small and portable, the network card is externally arranged, and the computer hardware is not limited.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a flow chart of the structure of the USB network card for encryption and decryption according to the present invention;

FIG. 2 is a PCBA structure diagram of the encryption and decryption USB network card of the present invention;

fig. 3 is a partial assembly view of the encryption/decryption USB network card of the present invention mounted in the lower housing;

FIG. 4 is a complete assembly drawing of the USB network card for encryption and decryption according to the present invention;

in the figure: 1. USB3.0 interface, 2, encryption and decryption chip, 3, network PHY chip, 4, through-hole, 5, network transformer, 6, RJ45 net gape, 7, shell, 8, PCBA.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.

As shown in fig. 1 to 4, a USB network card with encryption and decryption functions includes a housing 7 and a PCBA8, a USB3.0 interface 1 is installed at the left end of the PCBA8, and the USB3.0 interface 1 is a USB3.0 Type male, and conforms to the USB3.0 standard. The right end is provided with an RJ45 network port 6, the network is connected with the encryption and decryption chip 2 through an RJ45 network port 6 through a network PHY chip 3, the encryption and decryption chip 2 carries out encryption and decryption algorithms on data, the data are encrypted and decrypted, the encryption and decryption chip 2 generates an encryption and decryption key and manages the key, the encryption and decryption chip 2 is connected with the computer through a USB3.0 interface 1, and the data can be transmitted between the network and the computer after being processed by the encryption and decryption chip 2. A network transformer 5 is also mounted on the PCBA8, and the network transformer 5 is mounted between the network PHY chip 3 and the RJ45 network port 6. Two through holes 4 are formed in the PCBA8 close to the left side of the RJ45 network port 6, the through holes 4 are symmetrically formed in the upper side and the lower side of the network transformer 5, the aperture of each through hole 4 is 2.5mm, and the network card is connected with the shell through the through holes. The housing 7 is an upper housing and a lower housing, and the dimensions of the housing 7 are 95X 33X 22 mm. The PCBA8 is arranged in the shell 7, as shown in figure 3, the PCBA8 is placed in the lower shell, the upper shell is covered, and the whole USB is assembled by connecting the through hole 4 with the upper shell and the lower shell, as shown in figure 4, the whole USB network card is assembled.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a USB network card with encryption and decryption function, includes shell and PCBA, and the USB3.0 interface is installed to PCBA's left end, and the RJ45 net gape is installed to the right-hand member, and its characterized in that, the network passes through the RJ45 net gape and connects through network PHY chip and encryption and decryption chip, encryption and decryption chip passes through USB3.0 interface and computer connection, and data process transmission between network and computer after the encryption and decryption chip is handled.

2. The USB network card with encryption and decryption functions of claim 1, wherein the encryption and decryption chip performs encryption and decryption algorithm on data.

3. The USB network card with encryption and decryption functions of claim 1, wherein the encryption and decryption chip generates encryption and decryption keys and manages the keys.

4. The USB network card with encryption and decryption functions of claim 1, wherein a network transformer is installed on the PCBA.

5. The USB network card with encryption and decryption functions of claim 4, wherein the network transformer is installed between the network PHY chip and the RJ45 port.

6. The USB network card with encryption and decryption functions of claim 1, wherein two through holes are opened on the PCBA near the left side of the RJ45 network port.

7. The USB network card with encryption and decryption functions of claim 6, wherein the through holes are symmetrically formed at the upper side and the lower side of the network transformer.

8. The USB network card with encryption and decryption functions of claim 6, wherein the aperture of the through hole is 2.5 mm.

9. The USB network card with encryption and decryption functions of claim 1, wherein the USB3.0 interface is USB3.0 Type male, and conforms to USB3.0 standard.

10. The USB network card with encryption and decryption functions of claim 1, wherein the size of the housing is 95 x 33 x 22 mm.