TWI752747B - Multimedia and complete file parallel transmission method - Google Patents

Abstract

A method for parallel transmission of multimedia and complete files, which is to connect most multimedia devices to a coordinate node, and based on the coordinate nodes to find a number of multimedia devices with the shortest connection paths to form a networking group, and a sending end of the multimedia devices is based on the multimedia devices. The user identification code of the receiving end sends a connection message to the receiving end of the multimedia device, so that the sending end of the multimedia device and the receiving end of the multimedia device are directly connected through a sealed package, and a key is generated after the connection. Unpack the encapsulated package and obtain a random key, so that the sender of the multimedia device and the receiver of the multimedia device can perform encrypted transmission through the random key. In this way, when complete files are transmitted in parallel between multimedia devices, the cost can be effectively reduced, and the benefits of privacy protection can be achieved due to encryption and direct connection transmission.

Description

Multimedia and complete file parallel transmission method

The present invention relates to a parallel transmission method for multimedia and complete files, especially a method for parallel transmission of multimedia and complete files that can effectively reduce transmission costs and have the benefits of privacy protection due to encryption and direct link transmission.

When transferring between multimedia devices, it is usually necessary to build a server with powerful storage space and execution performance, so that the server can provide parallel transfer of files between multimedia devices through various computing and processing programs.

However, in the current transmission method, the cost is greatly increased due to the need to build a server with powerful storage space and execution performance.

The main purpose of the present invention is to achieve the effect of effectively reducing the cost when the complete file is transmitted in parallel between multimedia devices, and to have the benefit of privacy protection due to encryption and direct connection transmission.

In order to achieve the above-mentioned purpose, the present invention is a parallel transmission method for multimedia and complete files, which comprises the following steps:

Step 1: at least a coordinate node is provided by a server, and most multimedia devices are connected to the coordinate node.

Step 2: Based on the coordinate node, the DHT KAD (distributed hash table Kademlia) algorithm is used to find several multimedia devices with the shortest connection path, so as to make several multimedia devices with the shortest connection path Devices form a networked group.

Step 3: The sending end of the multimedia device sends a connection message in the network group where it is located according to the user identification code of the receiving end of the multimedia device, and sends the connection message to the receiving end of the multimedia device through the DHT KAD algorithm.

Step 4: Make the transmitting end of the multimedia device and the receiving end of the multimedia device perform a penetrating direct connection in the form of a sealed packet.

Step 5: After connecting, generate at least one key to the receiving end of the multimedia device, so that the receiving end of the multimedia device uses the key to unlock and seal the package, and obtain a random key, so as to use the random key to make the multimedia device The sender of the device and the receiver of the multimedia device perform encrypted transmission.

In the above-mentioned parallel transmission method for multimedia and complete files, each multimedia device in the second step is also used as a connection node, so that each coordinate node and each multimedia device cooperate with each other, and a majority of the network group is formed. Each coordinate node or each multimedia device with the shortest connection path at most is connected to each other.

In the above-mentioned method for parallel transmission of multimedia and complete files, in the fourth step, a penetrating direct connection is performed in a sealed packet manner of the User Data Packet Protocol (UDP).

In the above-mentioned method for parallel transmission of multimedia and complete files, if the connection fails in step 4, a relay server will be used for transmission, and step 4 will continue to be executed until the connection is successful, and then transfer to the penetrating method. Connect directly.

In the above-mentioned method for parallel transmission of multimedia and complete files, in step 5, a private key and a public key are generated after the connection, so that the private key and the public key are asymmetrically encrypted and sent to the multimedia device At the receiving end, the receiving end of the multimedia device uses the private key and the public key to unlock the encapsulated package and obtain the random key.

In the above-mentioned method for parallel transmission of multimedia and complete files, the random key in step 5 enables the sender of the multimedia device and the receiver of the multimedia device to perform symmetric encrypted transmission.

In the above-mentioned parallel transmission method of multimedia and complete files, if the connection is disconnected and then reconnected in step 5, a random key will be generated again.

1: container

1: Coordinate node

2: Multimedia equipment

21: The sender of multimedia equipment

22: Receiver of multimedia equipment

3: Networking groups

s1: step one

s2: Step 2

s3: Step 3

s4: Step 4

s5: Step 5

Fig. 1 is a schematic flow chart of the present invention.

Figure 2 is a schematic diagram of the use state of the present invention.

Please refer to "Fig. 1 to Fig. 3", which are a schematic flow diagram of the present invention and a schematic diagram of the use state of the present invention, respectively. As shown in the figure: the present invention is a parallel transmission method for multimedia and complete files, which includes the following steps:

Step 1 s1 : at least a coordinate node 1 is provided by a server, and most of the multimedia devices 2 are connected to the coordinate node 1 .

Step 2 s2: Based on the coordinate node 1, the DHT KAD (distributed hash table Kademlia) algorithm is used to find the multimedia devices 2 with the shortest connection paths, so that the multimedia devices 2 with the shortest connection paths form a networked group 3 .

Step 3 s3: The sending end 21 of the multimedia device sends a connection message in the network group 3 where it is located according to the user identification code of the receiving end 22 of the multimedia device, and sends the connection message to the multimedia device through the DHT KAD algorithm. Receiver 22.

Step 4 s4: Make the transmitting end 21 of the multimedia device and the receiving end 22 of the multimedia device perform a penetrating direct connection in a sealed packet manner.

Step 5 s5: After the connection is made, at least one key is generated to the receiver 22 of the multimedia device, so that the receiver 22 of the multimedia device unlocks and seals the package with the key, and obtains a random key to use the random key The key enables the sender 21 of the multimedia device and the receiver 22 of the multimedia device to perform encrypted transmission. In this way, when complete file parallel transmission is performed between the sender 21 of the multimedia device and the receiver 22 of the multimedia device, the cost can be effectively reduced, and the benefit of privacy protection can be achieved due to encryption and direct connection transmission.

In a preferred embodiment of the present invention, each multimedia device 2 in the second step is also used as a connection node, so that each coordinate node 1 and each multimedia device 2 cooperate with each other, and the network group 3 groups A plurality of nodes are formed as connecting nodes, and at most eight coordinate nodes 1 or multimedia devices 2 with the shortest connection paths are connected to each other. In this way, the connection between the transmitting end 21 of the multimedia device and the receiving end 22 of the multimedia device can be performed with better efficiency.

In a preferred embodiment of the present invention, in the fourth step, a penetrating direct connection is performed in a sealed packet manner of the User Data Packet Protocol (UDP). In this way, the connection between the transmitting end 21 of the multimedia device and the receiving end 22 of the multimedia device can be performed at a lower cost.

In a preferred embodiment of the present invention, if the connection fails in step 4, it will be transmitted through a relay server, and step 4 will continue to be executed until the connection is successful, and then transfer to the penetrating type. Connect directly. In this way, the connection between the transmitting end 21 of the multimedia device and the receiving end 22 of the multimedia device can be performed with better efficiency.

In a preferred embodiment of the present invention, in step 5, a private key and a public key are generated after the connection is made, and the private key and the public key are asymmetrically encrypted and transmitted to the multimedia device. The receiving end 22 of the multimedia device enables the receiving end 22 of the multimedia device to unlock and seal the package with the private key and the public key, and obtain the random key. In this way, a better information security effect can be achieved during transmission between the transmitting end 21 of the multimedia device and the receiving end 22 of the multimedia device.

In a preferred embodiment of the present invention, the random key in step 5 enables the sender 21 of the multimedia device and the receiver 22 of the multimedia device to perform symmetric encrypted transmission. In this way, when transmitting between the transmitting end 21 of the multimedia device and the receiving end 22 of the multimedia device, the Better information security effect.

In a preferred embodiment of the present invention, if the connection is disconnected and then reconnected in step 5, a random key will be generated again. In this way, a better information security effect can be achieved during transmission between the transmitting end 21 of the multimedia device and the receiving end 22 of the multimedia device.

To sum up, the method for parallel transmission of multimedia and complete files of the present invention can effectively improve various disadvantages of conventional methods, and can effectively reduce costs when performing parallel transmission of complete files between multimedia devices. It has the benefit of privacy protection; furthermore, the invention can be more advanced, more practical, and more suitable for the needs of employees. It has indeed met the requirements for an invention patent application, and a patent application can be filed in accordance with the law.

However, the above are only preferred embodiments of the present invention, and should not limit the scope of implementation of the present invention; therefore, any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the description of the invention , shall still fall within the scope covered by the patent of the present invention.

1: Coordinate node

2: Multimedia equipment

21: The sender of multimedia equipment

22: Receiver of multimedia equipment

3: Networking groups

Claims (6)

A method for parallel transmission of multimedia and complete files, comprising the following steps: Step 1: a server provides at least a coordinate node, so that most multimedia devices are connected to the coordinate node; Step 2: based on the coordinate node, through DHT KAD The (distributed hash table Kademlia) algorithm finds several multimedia devices with the shortest connection path, so that several multimedia devices with the shortest connection path form a network group, in which each multimedia device also serves as a connection node, so that each coordinate node and The multimedia devices cooperate with each other, and a plurality of nodes are formed in the networking group as connections, and at most eight coordinate nodes or multimedia devices with the shortest connection paths are connected to each other; Step 3: Multimedia devices The sender sends a connection message according to the user identification code of the receiver of the multimedia device in the network group where it is located, and sends the connection message to the receiver of the multimedia device through the DHT KAD algorithm; Step 4: Make the multimedia device The transmitting end and the receiving end of the multimedia device perform a penetrating direct connection in a sealed package; and step 5: after the connection, at least one key is generated to the receiving end of the multimedia device, so that the receiving end of the multimedia device uses the key Unpack the encapsulated package, and obtain a random key, so that the sending end of the multimedia device and the receiving end of the multimedia device can perform encrypted transmission through the random key. According to the method for parallel transmission of multimedia and complete files according to claim 1 of the claimed scope, in the fourth step, a penetrating direct connection is performed in a sealed packet manner of the User Data Packet Protocol (UDP). According to the method for parallel transmission of multimedia and complete files described in item 1 of the scope of the patent application, if the connection fails in step 4, a relay server will be used for transmission, and step 4 will continue to be executed until the connection is made After success, switch to penetrating direct connection. According to the method for parallel transmission of multimedia and complete files described in item 1 of the scope of the patent application, in step 5, a private key and a public key are generated after the connection is connected, so that the private key and the public key can perform non-discrimination with the public key. Symmetrically encrypted, and sent to the receiver of the multimedia device, so that the receiver of the multimedia device uses the private key and the public key to unlock the encapsulated package and obtain the random key. According to the method for parallel transmission of multimedia and complete files according to claim 1 of the claimed scope, the random key in step 5 enables the sender of the multimedia device and the receiver of the multimedia device to perform symmetric encrypted transmission. According to the method for parallel transmission of multimedia and complete files as described in item 1 of the claimed scope, in step 5, if the connection is disconnected and then reconnected, a random key will be generated again.

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