TWI679863B - Digital data transmission system, device thereof and method therefor with identity-masking - Google Patents

Abstract

A digital data transmission system includes an identification conversion mechanism, a transmitting end device, and a receiving end device. The receiving end device has its own identification code, and the transmitting end device has the identification conversion mechanism. The identification conversion mechanism converts a source identification code into a source identification masking mark, and combines the source identification masking mark with a digital data to form a labeled digital data. The transmitting-end device transmits the marked digital data, and the receiving-end device uses the self-identification code to compare and determine the marked digital data. If the self-identification code does not match the marked digital data, the receiving end device does not receive the marked digital data. If the self-identification code matches the marked digital data, the receiving end device can receive and process the marked digital data.

Description

   Digital data transmission system with identification and concealment, device and method thereof   

The invention relates to a digital data transmission system with identification-masking, an apparatus and a method thereof, and more particularly to a digital data transmission system for identifying and concealing with a non-unique purpose source-marking marking method. , Its device and its method; more particularly, it relates to a digital data transmission system with a source-destination-combined mark, its device and its method.

Conventional data transmission systems and methods, for example, the invention patent of "Multipoint Data Communication System with Collision Detection" of US Patent No. 4063220, which discloses a multipoint data transmission system. The multi-point data transmission system includes several wireless transceivers, and the wireless transceiver includes a transmission section, a receiving section, and a gate section, and the gate section is used to compare an interface level and a transmission line. Information.

Another conventional data transmission system and method is, for example, the invention patent of "Multiple Access Communication System" of US Patent No. US4868811, which discloses a multiple access communication system. The multiple access communication system uses several communication channels and a common signalling channel, and the communication channel and the common signalling channel are respectively configured with different carrier frequencies.

Another conventional data transmission system and method thereof, for example: US Pat. No. 6,418,480, "Communication Packet Including a Multicast Address and a Destination Address Different than an Equivalent to the Multicast Address" invention patent, discloses a virtual communication system. The virtual communication system includes a multicast address and a destination address, which are different from an equivalent multicast address.

Another conventional data transmission system and method, for example: "Data Communication System Transmitting Data to Restored Destination Address, Address Management Apparatus, Data Communication Apparatus, Address Management Method, and Address Management Program" invention of US Patent Publication No. US2009 / 0135446 Patent application which discloses a data transmission system. The data transmission system includes a server and a multifunction peripheral (MFP), and the server and the multifunction peripheral can transmit data to each other. The multifunctional peripheral device transmits a data to the server, and the data includes a source address of another device, and the multifunctional peripheral device receives data of a destination address transmitted by the server.

According to the above, as the conventional data transmission systems of the aforementioned applications of US Pat. The position mark of the transmitter [transmitter] has not been properly covered, and even the receiver (receiver) has not been properly covered, so there must be a need for further improvement. The aforementioned patents and applications are only references for the technical background of the present invention and illustrate the current state of technological development, and are not intended to limit the scope of the present invention.

In view of this, in order to meet the above technical problems and needs, the present invention provides a digital data transmission system with identification cover, its device and method thereof, which converts at least one source identification code [or at least one source address] into at least A source identification masking mark, and combining the source identification masking mark with at least one digital data to form a labeled digital data, and transmitting the marked digital data to at least one receiving device or at least one using at least one transmitting device. The receiving end device group, and the receiving end device or the receiving end device group uses at least one self-identification code (or at least one self-address) to compare and determine whether to receive the marked digital data, so it is relative to the conventionally used transmitting-end identification location mark The data transmission system and method can greatly improve its data transmission security, data cracking difficulty and confidentiality of data content.

The main object of the present invention is to provide a digital data transmission system with identification and disguise, an apparatus and a method thereof, which convert at least one source identification code (or at least one source address) into at least one source identification and disguise mark, and The source identification mask is combined with at least one digital data to form a labeled digital data, and the at least one transmitting end device is used to transmit the labeled digital data to at least one receiving end device or at least one receiving end device group, and the receiving end The device or the receiving device group uses at least one self-identification code (or at least one self-address) to determine whether to receive the marked digital data, so as to achieve the purpose of improving the security of data transmission, the difficulty of data cracking, and the confidentiality of data content. .

In order to achieve the above object, the digital data transmission system with identification and masking in the preferred embodiment of the present invention includes: at least one identification conversion mechanism, which converts at least one source identification code into at least one source identification and masking mark, and masks the source identification and masking The tag is combined with at least one digital data to form a labeled digital data; at least one transmitting device having the identification conversion mechanism, and the transmitting device transmits the labeled digital data; and at least one receiving device, It has at least one self-identification code; wherein the receiving-end device uses the self-identification code to compare and determine the marked digital data; if the self-identification code does not match the marked digital data, the receiving-end device does not receive or does not continue Processing the marked digital data; or, if the self-identification code matches the marked digital data, the receiving end device can receive and process the marked digital data.

In order to achieve the above object, a method for transmitting digital data with identification and masking in a preferred embodiment of the present invention includes: converting at least one source identification code into at least one source identification masking mark, and combining the source identification masking mark with at least one digital data To form a marked digital data; use at least one transmitting device to transmit the marked digital data, and the transmitting device has an identification conversion mechanism; choose to set at least one receiving device or at least one receiving device group At least one self-identification code, so that the receiving-end device or group of receiving-end devices can use the self-identification code to compare the marked digital data; and if the self-identification code does not match the marked digital data, the receiving-end device or The receiving device group does not receive or continue to process the marked digital data; or if the self-identification code matches the marked digital data, the receiving device or the receiving device group can receive and process the marked digital data.

The identification conversion mechanism of the preferred embodiment of the present invention includes a pre-address screening step or a pre-address conversion step.

The identification conversion mechanism of the preferred embodiment of the present invention chooses to adopt a single-site obfuscation technique or a single-site fusion technique.

The address obfuscation technique of the preferred embodiment of the present invention includes a redundant obfuscation technique or an erasure obfuscation technique; or, the address fusion technique includes an intersection fusion technique or a joint fusion technique.

The receiving device of the preferred embodiment of the present invention includes a bit filtering step.

The source identification mask of the preferred embodiment of the present invention is at least one source address, at least one source network card address, at least one source MAC address, at least one source IP address, any combination thereof, or other mark data.

The source identification masking mark of the preferred embodiment of the present invention has a fixed-length source mark or an unfixed-length source mark.

The self-identification code of the preferred embodiment of the present invention is at least one self-address or other identification information.

The labeled digital data of the preferred embodiment of the present invention is at least one signal frame, at least one packet data, or other digital data.

The transmitting end device of the preferred embodiment of the present invention uses at least one hash function to generate the source identification code.

The preferred embodiment of the present invention can transmit and receive several different source identification masking marks or marked digital data between the same transmitting end device and the same receiving end device.

According to a preferred embodiment of the present invention, a plurality of different source identification masking marks or marked digital data can be transmitted and received between a plurality of the transmitting end devices and a plurality of the receiving end devices.

After receiving the marked digital data, the receiving-end device or the receiving-end device group of a preferred embodiment of the present invention converts at least one destination identification code (or at least one destination address) into at least one destination identification masking mark, and The purpose identification masking mark is combined with at least one query digital data to form a reply digital data, and the reply digital data is transmitted to the transmitting end device.

The preferred embodiment of the present invention converts at least one purpose identification code [or at least one destination address] into at least one purpose identification masking mark, and combines the purpose identification masking mark with the marked digital data to form a multiple mark. Digital data, and using the transmitting end device to transmit the multi-tag digital data to the receiving end device or receiving end device group, and the receiving end device or receiving end device group uses the self-identification code [or the own address] for comparison Determine whether to receive the multiple digit data.

The purpose identification mask of the preferred embodiment of the present invention is at least one destination address, at least one destination network card address, at least one destination MAC address, at least one destination IP address, any combination thereof, or other marking data.

The purpose identification mask of the preferred embodiment of the present invention has a fixed-length purpose mark or a non-fixed-length purpose mark.

1‧‧‧Multiple access communication network

11‧‧‧Tagged with processed data

11a‧‧‧Tagged digital data

2‧‧‧ communication device

20‧‧‧Identification conversion mechanism

21‧‧‧Transmitting device

22‧‧‧Receiving Device

FIG. 1 is a schematic diagram of an architecture of a digital data transmission system with identification and concealment to connect a plurality of communication devices according to a preferred embodiment of the present invention.

FIG. 2 is a schematic diagram of data transmission between a plurality of communication devices by a digital data transmission system with identification mask in a preferred embodiment of the present invention.

FIG. 3A is a schematic diagram of a signal frame format used for data transmission of a digital data transmission system with identification and masking according to a preferred embodiment of the present invention.

FIG. 3B is a schematic diagram of a packet format used for data transmission in a digital data transmission system with identification and masking according to a preferred embodiment of the present invention.

FIG. 3C is a schematic diagram of an inquiry and response between a transmitting device and a receiving device in a digital data transmission system with identification and masking according to a preferred embodiment of the present invention.

FIG. 4 is a schematic flowchart of a digital data transmission method with identification and masking according to a preferred embodiment of the present invention.

FIG. 5 is a schematic diagram of data transmission using a destination mark in a digital data transmission system with identification mask according to a preferred embodiment of the present invention.

FIG. 5A is a schematic diagram of data transmission using a destination mark in a digital data transmission system with identification and masking according to another preferred embodiment of the present invention.

FIG. 6 is a schematic diagram of data transmission using a multi-purpose flag in a digital data transmission system with identification and masking according to another preferred embodiment of the present invention.

FIG. 7A is a schematic diagram of a data transmission system with identification mask in a preferred embodiment of the present invention, which uses an original Ethernet network card address for data transmission.

FIG. 7B: A schematic diagram of setting the multicast bit and bit address redundancy for data transmission in the digital data transmission system with identification and masking according to the preferred embodiment of the present invention.

FIG. 7C is a schematic diagram of setting a multicast bit and bit address erasing confusion for data transmission of a digital data transmission system with identification and masking according to a preferred embodiment of the present invention.

FIG. 8A is a schematic diagram of an original Ethernet network card address used for data transmission in a digital data transmission system with identification and masking according to a preferred embodiment of the present invention.

FIG. 8B is a schematic diagram of data transmission in a digital data transmission system with identification and masking according to a preferred embodiment of the present invention by setting a group broadcast bit and bit address intersection fusion.

FIG. 8C is a schematic diagram of data transmission in a digital data transmission system with identification and masking according to a preferred embodiment of the present invention, in which a group broadcast bit and a bit address set are fused.

In order to fully understand the present invention, the preferred embodiments will be described in detail below with reference to the accompanying drawings, which are not intended to limit the present invention.

The preferred embodiment of the present invention has a digital data transmission system with identification and disguise, its device and method [or a digital data transmission system with identification and concealment by source mark method, its device and its method] Various data transmission systems and its devices are selected. And its methods, for example: various local networks (for example, Ethernet / WiFi local network), various mobile communication networks (for example, LTE mobile communication network), various short-range communications (for example, Bluetooth or ZigBee short-range communication), various An IP network or other data transmission network is not intended to limit the scope of application of the present invention.

FIG. 1 is a schematic diagram showing a structure of a digital data transmission system with identification mask connected to a plurality of communication devices according to a preferred embodiment of the present invention. Please refer to FIG. 1. The digital data transmission system with identification and masking according to the preferred embodiment of the present invention is implemented in a multiple access communication network 1 or other network, and a plurality of access networks 1 are used to connect several Communication device [or various devices with communication function] 2 and data transmission between the plurality of communication devices [or various devices with communication function] 2 by means of source identification conversion and source identification masking marks, or in the data Each communication device (or various devices with communication function) 2 also transmits data by means of purpose identification conversion purpose identification masking marks. For example, the source identification, destination identification, or both include an identification code [ID], an address [address], or other identifying information.

FIG. 2 is a schematic diagram illustrating data transmission between a plurality of communication devices by a digital data transmission system with identification and masking according to a preferred embodiment of the present invention. Please refer to FIG. 1 and FIG. 2. The digital data transmission system with identification mask in the preferred embodiment of the present invention includes an identification conversion mechanism 20, at least one or several transmitting device 21 and at least one or digital device. Receiver devices [receiver device] 22, and the transmitting device 21 and the receiving device 22 are selected and configured by the plurality of communication devices [or various devices with communication functions] 2.

Please refer to FIG. 1 and FIG. 2 again. During the communication transmission, the source end device 21 can perform source identification conversion by using the identification conversion mechanism 20 through the multiple access communication network 1 and the source identification masking mark or purpose identification conversion purpose. Identification masking mark [use at least one or several hash functions] to transmit a marked data 11 to the receiving end device 22 and other communication devices 2 and the marked processing data 11 can be selected A source identification masking mark, a destination identification masking mark, or a source and destination identification masking mark.

Please refer to FIG. 1 and FIG. 2 again. For example, the identification conversion mechanism 20 chooses to adopt an address obfuscation technology or an address fusion technology, and the address obfuscation technology includes a Redundant obfuscation technology or clear-obfuscation technology, and the address fusion technology includes an intersection fusion technology and an union fusion technology.

Please refer to FIG. 1 and FIG. 2 again. For example, the transmitting end device 21 chooses to use the identification conversion mechanism 20 to achieve the conversion and replacement operation of identification and concealment. The identification conversion mechanism 20 includes a pre-address screening step or a pre-address transforming step for subsequent identification conversion.

Please refer to FIG. 1 and FIG. 2 again. For example, compared to address screening, address conversion, address obfuscation, or address fusion, the receiving end device 22 includes address filtering. Steps or other similar comparison function steps to avoid the receiving device 22 from receiving the marked processing data 11 designated by mistake, and the receiving device 22 may choose to use 1-Filter or 0-Filter, or choose other The signal frame or packet position is exactly the same.

FIG. 3A discloses a schematic diagram of the format of a data frame [Ethernet LAN signal frame] used for data transmission in a digital data transmission system with identification and masking according to a preferred embodiment of the present invention; FIG. 3B illustrates the identification of a preferred embodiment of the present invention with identification The data transmission of the disguised digital data transmission system uses the format of a packet [IPv4 / IPv6 packet]. Please refer to Figs. 1, 2, 3A and 3B. For example, the marked processing data 11 is at least one signal frame (as shown in Fig. 3A), and at least one packet (packet). [As shown in Figure 3B] or other digital data.

FIG. 3C illustrates a schematic diagram of a digital data transmission system with identification and masking in accordance with a preferred embodiment of the present invention, which uses a transmitting device and a receiving device to inquire and respond. Please refer to FIG. 3C. For example, the transmitting device 21 [Host A, IP _A ] or other transmitting device [eg Host C] inquires the receiving device 22 [Host B, IP _B ] network card address [for example: MAC _B ], as shown by the right arrow in Figure 3C. Then, the receiving end device 22 [Host B, IP _B ] performs identification masking [obfuscation] of the network card address [MAC _B ] as Mark _B so as not to be unique, so as to achieve the effect of identification masking. When the receiving-end device 22 [Host B] responds to the transmitting-end device 21 [Host A] or other transmitting-end device [eg Host C], Mark _{A is} raised to A or C to become Mark _B♁A or Mark _{B ♁C} and reply to the transmitting device 21 [Host A] or other transmitting device [eg Host C], as shown by the two-way arrow in Figure 3C.

FIG. 4 illustrates a schematic flowchart of a digital data transmission method with identification and masking according to a preferred embodiment of the present invention, which includes four main steps S1 to S4A and S4B, but it is not intended to limit the sequence of steps of the present invention, without departing Within the scope of the present invention, the order of steps of the preferred embodiment of the present invention may be appropriately changed, divided, increased, merged, or reduced, and other steps and methods may be deduced by analogy.

Please refer to FIGS. 1, 2 and 4. The digital data transmission method with identification mask in the preferred embodiment of the present invention includes step S1: for example, converting at least one identification code or at least one source identification code into at least one Mark data or at least one source identity-masking mark, and combine the mark data or source identification-masking mark with at least one digital data to form a marked digital data, as shown in FIG. 2 Mark processing data11.

The mark data of another preferred embodiment of the present invention may be selected as at least one destination identity-masking mark, a source and destination combination identity-masking mark, or other combined mark data. In order to improve the security of data transmission, the difficulty of data cracking and the confidentiality of data content.

Please refer to Figures 1, 2 and 4 again, the self-identification code is at least one of its own address or other identifying information, and the marking data, source identification masking mark or combination thereof may be selected as belonging or not Uniqueness, and the mark information or source identification cover-up mark can be selected to belong to or not belong to multiple. In addition, the source identification mask is at least one source address, at least one source network card address, at least one source MAC address, at least one source IP address, any combination thereof, or other marking information, and the source identification mask has A fixed-length source mark or an unfixed-length source mark.

In another preferred embodiment of the present invention, the tag data is at least one destination address, at least one destination network card address, at least one destination MAC address, at least one destination IP address, any combination thereof, or other tag data, and the The tag data has a fixed-length purpose tag or a non-fixed-length purpose tag data.

Please refer to FIGS. 1, 2 and 4 again. The digital data transmission method with identification mask in the preferred embodiment of the present invention includes step S2: for example, using at least one or several of the transmitting end devices 21 to The digital data is marked for transmission, and the transmitting end device 21 has the identification conversion mechanism 20, that is, the one-to-one transmission mode, the one-to-many transmission mode, the many-to-one transmission mode, or the many-to-many transmission mode is constructed. In addition, the transmitting end device 21 uses at least one hash function as the identification conversion mechanism 20 to generate the destination identification code.

Please refer to FIGS. 1, 2 and 4 again. The digital data transmission method with identification mask in the preferred embodiment of the present invention includes step S3: for example, in the receiving device [or at least one receiving device group] 22 Select to set at least one self-identification code, so that the receiving-end device (or receiving-end device group) 22 compares and judges the marked digital data by using the self-identification code.

Please refer to Figs. 1, 2 and 4 again. The digital data transmission method with identification cover in the preferred embodiment of the present invention includes step S4A. For example, if the self-identification code does not match the marked digital data, The receiving-end device [or the receiving-end device group] 22 does not receive the marked digital data, or ignores the marked digital data without continuing processing.

Please refer to Figs. 1, 2 and 4 again. The digital data transmission method with identification mask in the preferred embodiment of the present invention includes step S4B. For example, if the self-identification code matches the marked digital data, The identification of the receiving device (or receiving device group) 22 has been completed, so that the marked digital data can be received and processed.

FIG. 5 illustrates a schematic diagram of a data transmission system with identification and masking in accordance with a preferred embodiment of the present invention for transmitting data using a destination mark. Please refer to FIG. 5, a number of the transmitting device 21 [Device s , Device t , Device u ] want to transmit a signal box [or packet] to the receiving device 22 [Device r ]. The transmitting device 21 [Device s , Device t , Device u ] or the receiving device 22 [Device r ] generates a source identity-masking mark after obfuscation and fusion, which is not unique and It can be changed from time to time to achieve the effect of identifying concealment. For example, the transmitting-end device 21 [Device s ] can choose to fill in the Destination MAC identification mask [obfuscation fusion] as Mark _rs in the sent packet, so it is received by the receiving-end device 22 [Device r ]. At the same time, in the sent packet, you can also choose to replace the source MAC identification with Mark after concealing (obfuscation and fusion) to disguise your own network card address.

FIG. 5A illustrates a schematic diagram of data transmission using a destination mark in a digital data transmission system with identification mask according to another preferred embodiment of the present invention. Please refer to FIG. 5A. For example, between the same transmitting device 21 and the same receiving device 22, several different destination identification masks or marked digital data can be transmitted and received. The transmitting end device 21 converts one or more destination identification codes or destination addresses into the destination identification masking mark in the form of a destination identification conversion destination mark, and combines the destination identification masking mark with a digital data to form the marked digital data. 11a, and the marked digital data 11a is transmitted to one or more of the receiving end devices 22, and the devices Device r ₁ , Device r ₂ ,..., And Device r _k of the receiving end devices 22 are designated to receive.

Please refer to FIG. 5 and FIG. 5A. In another preferred embodiment of the present invention, a digital data transmission system with identification mask uses both the source identification mask and the destination identification mask to combine [fill in] the digital data [signal] Frame or packet] to form a multi-label digital data, so as to identify the identification codes that cover up the transmitting device 21 and the receiving device 22 at the same time.

FIG. 6 illustrates a schematic diagram of a digital data transmission system with identification and masking using a multi-purpose flag for data transmission according to another preferred embodiment of the present invention. Please refer to FIG. 6. For example, a plurality of different destination marked or marked digital data can be transmitted and received between a plurality of the transmitting device 21 and a plurality of the receiving device 22, and the The destination mark can be selected to be non-unique, that is, the same transmitting end device 21 is transmitted to the same receiving end device 22, different destination marks are allowed, and one-to-one transmission can be selected according to different needs. Any of many-to-many transmission, many-to-one transmission, or many-to-many transmission.

Please refer to FIG. 6 again. For example, the transmitting device 21 chooses to send a signal frame or packet Mark ₁₂ and Mark _12k with different purposes for Device t , or the transmitting device 21 chooses to issue a Device s. The target frame or packet Mark _{2k is selected} , and the receiving device 22 is selected as Device r ₂ , that is, the signal frame or packet Mark ₁₂ , Mark _12k, and Mark _{2k of} the destination mark can be identified and received in Device r ₂ .

Please refer to FIG. 6 again. According to another preferred embodiment of the present invention, Device r ₁ of the receiving end device 22 may be selected as a signal frame or packet Mark _2k that cannot receive a destination mark, and the device of the receiving end device 22 r _k can be selected as the frame or packet Mark _{12 that} cannot receive the destination mark.

Please refer to FIG. 6 again. For example, according to another preferred embodiment of the present invention, Device r ₁ of the receiving end device 22 may be selected as a signal frame or packet Mark _2k that cannot receive a destination mark, and the receiving end The Device r _{k of the} device 22 can be selected as a frame or a Mark _{12 which} cannot receive a destination mark. According to another preferred embodiment of the present invention, Device r ₁ of the receiving end device 22 can be selected as a frame or packet Mark _2k that cannot receive a destination mark, but can still be selected as a frame or packet Mark ₁₂ or Mark _{12k that} can receive a destination mark. Or both. According to another preferred embodiment of the present invention, Device r _k of the receiving end device 22 may be selected as a frame or packet Mark ₁₂ that cannot receive a destination mark, but may still be selected as a frame or packet Mark _2k or Mark _12k for a destination mark. Or both.

Please refer to FIG. 5A and FIG. 6. In another preferred embodiment of the present invention, a digital data transmission system with identification mask uses both the source identification mask and the destination identification mask to combine [fill in] the digital data [signal] Frame or packet] to form a multi-label digital data, so as to identify the identification codes that cover up the transmitting device 21 and the receiving device 22 at the same time.

FIG. 7A illustrates a schematic diagram of a data transmission system with an identification mask in a preferred embodiment of the present invention, which uses an original Ethernet network card address for data transmission. Please refer to Figures 2 and 7A. For example, the preferred embodiment of the present invention selects the original Ethernet network card address as 00-C2-C6-B7-27-98 without conversion.

FIG. 7B illustrates a schematic diagram of setting a multicast bit and bit address redundancy for data transmission in a digital data transmission system with identification and masking according to a preferred embodiment of the present invention; FIG. 7C illustrates a preferred embodiment of the present invention. The data transmission of the digital data transmission system with identification cover adopts the schematic diagram of setting the multicast bit and bit address to obfuscate. Please refer to Figures 2, 7A, 7B, and 7C. In the address screening, Octet 0 is reserved. Only the rightmost multicast bit (the leftmost of Figures 7B and 7C) is set to 1. In the transmitting end device 21, any one bit position in Octet 1 to Octet 5 is used to perform redundant obfuscation (as shown in FIG. 7B) or erase obfuscation (as shown in FIG. 7C).

Please refer to FIG. 7B and FIG. 7C. For example, in the preferred embodiment of the present invention, two purpose tags generated by redundant confusion are 01-D2-CE-F7-A7-99 and 01-CA-D6. -BF-2F-B8, and the receiving end device 22 can be filtered by the 1-Filter address. Similarly, in the preferred embodiment of the present invention, the two intent markers generated by erasing confusion are 01-62-C2-A7-26-88 and 01-C0-86-B6-07-18, and the receiving end The device 22 can be filtered by the 0-Filter address.

FIG. 8A illustrates a schematic diagram of a data transmission system with identification mask in the preferred embodiment of the present invention using the original Ethernet network card address, which corresponds to FIG. 7A. Please refer to FIG. 2 and FIG. 8A. For example, in the preferred embodiment of the present invention, the transmitting end device 21 is selected to multicast to two receiving ends and the receiving end device 22, and the addresses of the Ethernet network cards are 00-C2-C6-B7-27-98 and 30-85-A9-E7-AE-48 without conversion.

FIG. 8B discloses a schematic diagram of the data transmission system of the digital data transmission system with identification and masking in the preferred embodiment of the present invention, which adopts the setting of multicast bit and bit address intersection fusion; FIG. 8C discloses the preferred embodiment of the present invention. The data transmission of the identification and disguised digital data transmission system adopts the schematic diagram of setting the multicast bit and the bit address linking fusion. Please refer to Figures 2, 8A, 8B, and 8C. For example, to keep Octet 0 during address screening, set only the rightmost multicast bit (the leftmost of Figures 8B and 8C) to 1. . The destination mark generated by the intersection fusion at the transmitting end device 21 is 01-80-80-A7-26-08 [as shown in FIG. 8B], and the receiving end device 22 can be filtered by the 0-Filter address . . Similarly, the destination mark generated by the associative set fusion at the transmitting end device 21 is 31-C7-EF-F7-AF-D8, and the receiving end device 22 can be filtered by the 1-Filter address.

The foregoing preferred embodiment merely exemplifies the present invention and its technical features, and the technology of this embodiment can still be appropriately implemented with various substantially equivalent modifications and / or replacements; therefore, the scope of rights of the present invention shall be subject to the attached patent application The scope defined by the scope shall prevail. The copyright in this case is restricted to the application for patent application of the Republic of China.

Claims (10)

A digital data transmission system with identification cover includes: at least one identification conversion mechanism that converts at least one source identification code into at least one source identification cover mark, and combines the source identification cover mark with at least one digital data to Forming a marked digital data; at least one transmitting end device having the identification conversion mechanism, and the transmitting end device transmitting the marked digital data; and at least one receiving end device having at least one own identification code; wherein The receiving end device uses the self-identification code to compare and determine the marked digital data; if the self-identification code does not match the marked digital data, the receiving end device does not receive or continue processing the marked digital data; or, If the self-identification code matches the marked digital data, the receiving end device can receive and process the marked digital data. According to the digital data transmission system with identification mask described in item 1 of the scope of the patent application, the transmitting end device generates the source identification code by using at least one hash function. The digital data transmission system with identification mask according to item 1 of the scope of patent application, wherein the source identification mask is marked with at least one source address, at least one source network card address, at least one source MAC address, and at least one source IP The address or any combination thereof; or, the source identification masking mark has a fixed-length source mark or an unfixed-length source mark. According to the digital data transmission system with identification and concealment described in item 1 of the scope of the patent application, the marked digital data is at least one signal frame, at least one packet data or other digital data. According to the digital data transmission system with identification cover as described in item 1 of the scope of the patent application, wherein the same source identification device can transmit and receive several different identification identification masks or The labeled digital data; or, a plurality of different source identification masking marks or labeled digital data may be transmitted and received between the transmitting end device and the receiving end device. A digital data transmission method with identification masking, comprising: converting at least one source identification code into at least one source identification masking mark, and combining the source identification masking mark with at least one digital data to form a labeled digital data; The marked digital data is transmitted by using at least one transmitting device, and the transmitting device has an identification conversion mechanism; and at least one receiving device or at least one receiving device group is selected to set at least one self-identification code for the receiving The end device or the receiving end device group uses the self identification code to compare and determine the marked digital data; and if the self identification code does not match the marked digital data, the receiving end device or the receiving end device group does not receive or does not continue Process the marked digital data; or if the self-identification code matches the marked digital data, the receiving end device or group of receiving end devices can receive and process the marked digital data. The method for transmitting digital data with identification masking according to item 6 of the scope of the patent application, wherein the identification conversion mechanism includes a pre-address screening step or a pre-address conversion step. According to the digital data transmission method with identification cover described in item 6 of the scope of the patent application, the identification conversion mechanism chooses to use one-site obfuscation technology or one-site fusion technology. The method for transmitting digital data with identification and concealment according to item 8 of the scope of the patent application, wherein the address obfuscation technique includes a redundant obfuscation technique or an erasure obfuscation technique; or, the address fusion technique includes an intersection fusion technique or A joint set of fusion technology. According to the digital data transmission method with identification and concealment described in item 6 of the scope of the patent application, the receiving of the receiving device includes a one-bit filtering step.