CN103731654B - A kind of information insertion system and information extracting system using 2D/3D video - Google Patents

Abstract

The invention discloses an information embedding method using 2D/3D video, comprising: acquiring 2D/3D video, receiving user-input embedded control information, messages and keys, and encapsulating the user-input message to generate multiple The bit string is used as a secret segment, and the embedded control information is encapsulated to generate a bit string, and the bit string generated in step (3) is encrypted using an encryption algorithm to generate an encrypted embedded control information secret segment, and a counter is set i=1, set the flag CI_flag used to identify the first complete embedding of the embedded control information to 0, set the flag Cnt_embed used to identify the number of repeated embeddings of the message to 0, and decode the i-th frame of the 2D/3D video, And judge whether the i-th frame after decoding meets the processing conditions of the control information embedding algorithm. The invention can solve the technical problem that the steganography algorithm in the existing method cannot directly provide support for the covert communication system and cannot be directly applied to 2D and 3D videos.

Description

An information embedding system and information extraction system using 2D/3D video

technical field

The invention belongs to the fields of information steganography, H.264 encoding and decoding technology, and computer network communication, and more specifically relates to an information embedding system and an information extraction system using 2D/3D video.

Background technique

In order to conduct covert communication between the sender and the receiver without revealing traces, researchers at home and abroad have proposed a method of using steganographic algorithms to control the process of information hiding to achieve secret communication. In the currently known patent authorizations, the solutions related to the covert communication system can be mainly divided into two categories. The first category is mainly specific steganography and steganalysis algorithms, and does not discuss the complete implementation of the concealment system. After searching, there are currently about 66 related Chinese patents and about 115 world patents related to steganographic algorithms. Most of the schemes are specific algorithms. When embedding, the secret information is continuously embedded in the positions that meet the algorithm conditions. When extracting, information is extracted for all positions that meet the algorithm conditions. The second category involves complete covert communication systems, but the covert carrier is only text and audio, no 2D or 3D video is used. In the Chinese invention patent specification CN101577619A, a voice information hiding real-time confidential communication system is disclosed, which organically combines information hiding, computer, password and communication technologies, and connects the public telephone network PSTN, mobile communication GSM/CDMA, video conferencing and VoIP network uses voice information hiding and extraction algorithms to hide MELP2.4KBps secret voice in code-excited linear predictive coding G.721, G.728, GSM and G.729 public voice, and establishes a covert channel in the public communication channel. Real-time secure communication of secret voice messages.

The current two types of patents respectively consider specific steganography algorithms and covert communication schemes based on text, images and audio. The former is mainly a variety of steganographic algorithms, which have not been applied to the actual communication system, so its disadvantages are: first, a lot of follow-up research is needed from the algorithm proposal to the system realization, and its feasibility and implementability are yet to be solved. Further tests in practice; secondly, various steganographic algorithms have not given specific application occasions, making their application prospects unclear. Therefore, the proposal of a large number of steganography algorithms has enriched the means of implementing covert communication to a certain extent, but it is not enough to meet the needs of the actual covert communication system. . The carrier used by the latter is mainly text, image and audio, and its scheme cannot be directly applied to 2D and 3D video, because information hiding is closely related to its carrier. Under the background of the current rapid development of the Internet and the popularization of 2D/3D camera technology, its solution greatly restricts the further development of covert communication systems in the field of network multimedia.

Contents of the invention

Aiming at the above defects or improvement needs of the prior art, the present invention provides an information embedding method and system using 2D/3D video. Support issues and technical issues where existing solutions cannot be directly applied to 2D and 3D video.

In order to achieve the above object, according to one aspect of the present invention, an information embedding method using 2D/3D video is provided, comprising the following steps:

(1) Obtain 2D/3D video, and receive embedded control information, messages and keys input by the user;

(2) Encapsulate the message input by the user to generate multiple bit strings as encrypted segments. The total number of encrypted segments is the number of message segments, and each encrypted segment includes segment header identifier, segment identification number, and segment data length , segment data and end-of-segment identifier;

(3) Encapsulate the embedded control information to generate a bit string, that is, the embedded control information secret segment. The embedded control information includes the segment header flag, the embedded control information input by the user, the message segment number and the segment tail identifier;

(4) Use an encryption algorithm to encrypt the bit string generated in step (3) to generate the encrypted embedded control information segment, and set the counter i=1, which will be used to identify the first complete embedding of the embedded control information The flag CI_flag is set to 0, and the flag Cnt_embed used to identify the repeated embedding times of the message is set to 0;

(5) Decode the i-th frame of the 2D/3D video, and judge whether the decoded i-th frame meets the processing conditions of the control information embedding algorithm, if so, go to step (6), otherwise go to step (7) ;

(6) Use the control information embedding algorithm to embed the encrypted control information segment generated in step (4) into the i-th frame, and judge whether the flag CI_flag is 0 or 1, if it is 0, set the flag CI_flag to 1, and then turn to Go to step (9), if it is 1, go directly to step (9);

(7) Judging whether the flag CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the embedding algorithm selected by the user, if CI_flag is 1 and meets the processing conditions, then go to step (8), otherwise go to step (9 );

(8) Use the embedding algorithm selected by the user to embed multiple message encryption segments generated in step (2) into the i-th frame, and judge whether all of them are embedded, if so, set the flag Cnt_embed=Cnt_embed+1, and then go to step (9), Otherwise go to step (9);

(9) Write the i-th frame into a 2D/3D video file in H.264 format;

(10) Determine whether the i-th frame is the last frame of the 2D/3D video, if it is, it means that a new 2D/3D video containing the message has been generated, and then go to step (11), otherwise set i=i+1, and then Return to step (5);

(11) Determine whether the flag Cnt_embed is greater than 0, if so, prompt the user that the redundancy of the embedded message is equal to Cnt_embed, otherwise, prompt the user that the video capacity is insufficient and the video needs to be replaced.

Preferably, the message input by the user in step (2) is encapsulated in the following format:

Preferably, the embedded control information in step (3) is encapsulated in the following format:

An information embedding system using 2D/3D video, including:

The first module is used to obtain 2D/3D video, and receive embedded control information, messages and keys input by the user;

The second module is used to encapsulate the message input by the user to generate multiple bit strings as secret segments, the total number of secret segments is the number of message segments, and each secret segment includes a segment header identifier, a segment identification number, Segment data length, segment data and end-of-segment identifier;

The third module is used for encapsulating the embedded control information to generate a bit string, that is, the embedded control information secret segment, the embedded control information includes the segment header flag, the embedded control information input by the user, the message segment number and the segment tail identifier;

The fourth module is used to encrypt the bit string generated by the third module using an encryption algorithm to generate the encrypted embedded control information segment, and set the counter i=1, which will be used to identify the first time the embedded control information The fully embedded flag CI_flag is set to 0, and the flag Cnt_embed used to identify the repeated embedding times of the message is set to 0;

The fifth module is used to decode the i-th frame of the 2D/3D video, and judge whether the decoded i-th frame meets the processing conditions of the control information embedding algorithm, and if so, transfer to the sixth module, otherwise transfer to the seventh module;

The seventh module is used to embed the encrypted control information segment generated by the fourth module into the i-th frame using the control information embedding algorithm, and judge whether the flag CI_flag is 0 or 1, and if it is 0, set the flag CI_flag to 1, Then transfer to the ninth module, if it is 1, directly transfer to the ninth module;

The seventh module is used to judge whether the flag CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the embedding algorithm selected by the user, if CI_flag is 1 and meets the processing conditions, then go to step eighth module, otherwise go to Ninth module;

The eighth module is used to use the embedding algorithm selected by the user to embed a plurality of message encryption segments generated by the second module into the i-th frame, and judge whether they are all embedded, if so, set the sign Cnt_embed=Cnt_embed+1, and then transfer to the ninth module , otherwise transfer to the ninth module;

The ninth module is used to write the i-th frame into a 2D/3D video file in H.264 format;

The tenth module is used to judge whether the i-th frame is the last frame of the 2D/3D video, if it is, it means that a new 2D/3D video containing the message has been generated, and then transfer to the eleventh module, otherwise set i=i+ 1, then return to the fifth module;

The eleventh module is used for judging whether the flag Cnt_embed is greater than 0, if so, prompting the user that the redundancy of the embedded message is equal to Cnt_embed, otherwise prompting the user that the video capacity is insufficient and the video needs to be replaced.

Another object of the present invention is to provide a method and system for information extraction using 2D/3D video. Technical issues that apply directly to 2D and 3D video.

According to another aspect of the present invention, an information extraction method using 2D/3D video is provided, comprising the following steps:

(1) Obtain the encrypted 2D/3D video, extract the key input by the user, and judge whether the key is correct, if it is correct, go to step (2), otherwise the process ends;

(2) Set the counter i=1, set the flag CI_flag used to identify the first complete extraction of the control information to 0, and set the flag Extra_flag used to identify the complete extraction of the message to 0;

(3) Decode the i-th frame of the 2D/3D video, judge whether the flag CI_flag is 0 and whether the decoded i-th frame meets the processing conditions of the control information extraction algorithm, if the flag CI_flag is 0 and meets the processing conditions of the extraction algorithm, Then go to step (4), otherwise go to step (5);

(4) Use the control information extraction algorithm to extract the control information secret segment, extract the selection algorithm identifier, algorithm conditions, and the number of message segments, and set CI_flag to 1;

(5) Judging whether the flag CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the extraction algorithm, if CI_flag is 1 and meets the processing conditions, then go to step (6), otherwise go to step (7);

(6) According to the extraction algorithm, extract the secret segment of the message, and analyze the segment number and segment data from the secret segment;

(7) Determine whether all the message secret segments have been extracted, if so, set the flag Extra_flag to 1, and prompt the user that there is a new message to be accepted, and then go to step (8), otherwise go to step (8) ;

(8) Determine whether the i-th frame is the last frame of the 2D/3D video, if yes, then go to step (9), otherwise set i=i+1, and then return to step (3);

(9) Determine whether the flag Extra_flag is 1, and if so, prompt the user that there is a new message to receive; otherwise, prompt the user that the information cannot be extracted within the viewing time period.

Preferably, step (4) is to extract the selection algorithm identifier, algorithm condition, and number of message segments according to the following format:

Preferably, step (6) is to analyze the segment number and segment data from the encrypted segment according to the following format:

An information extraction system using 2D/3D video, comprising:

The first module is used to obtain the encrypted 2D/3D video, the extraction key input by the user, and judge whether the key is correct. If it is correct, it is transferred to the second module, otherwise the process ends;

The second module is used to set the counter i=1, set the flag CI_flag used to identify the first complete extraction of the control information to 0, and set the flag Extra_flag used to identify the complete extraction of the message to 0;

The third module is used to decode the i-th frame of the 2D/3D video, judge whether the flag CI_flag is 0 and whether the decoded i-th frame meets the processing conditions of the control information extraction algorithm, if the flag CI_flag is 0 and meets the extraction algorithm If the processing conditions are met, then transfer to the fourth module, otherwise transfer to the fifth module;

The fourth module is used to use the control information extraction algorithm to extract the control information secret segment, extract the selection algorithm identification, algorithm conditions, and the number of message segments, and set CI_flag to 1;

The fifth module is used to judge whether the sign CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the extraction algorithm, if CI_flag is 1 and meets the processing conditions, then transfer to the sixth module, otherwise transfer to the seventh module;

The sixth module is used to extract the message secret segment according to the extraction algorithm, and analyze the segment number and segment data from the secret segment;

The seventh module is used to judge whether all the message encryption sections have been extracted, if so, the flag Extra_flag is set to 1, and the user is prompted that there is a new message to be accepted, and then transfers to the eighth module, otherwise transfers to the eighth module module;

The eighth module is used to judge whether the i-th frame is the last frame of the 2D/3D video, if yes, then transfer to the ninth module, otherwise set i=i+1, and then return to the third module;

The ninth module is used for judging whether the flag Extra_flag is 1, if so, prompting the user that there is a new message to be received, otherwise prompting the user that information cannot be extracted within the viewing time period.

Generally speaking, compared with the prior art, the above technical solutions conceived by the present invention can achieve the following beneficial effects:

1. Compared with general encrypted communication, the present invention can not only hide the data itself (same as encrypted communication), but also hide metadata (encrypted communication often exposes the encryption behavior itself).

2. Compared with other current covert communication schemes, the 2D/3D network video stream of the present invention as a covert carrier accounts for about 90% of the Internet traffic, has the attributes of openness, publicity, mass and publicity, and is the best camouflage for covert communication at your fingertips environment;

3. Compared with other current covert communication schemes, the present invention can ensure that the receiving party extracts while playing, and can guarantee the real-time performance of covert communication;

4. Compared with other current covert communication schemes, the present invention can ensure that the receiver can cut in and extract at any time, and can improve the anti-steganographic analysis ability of covert communication;

5. Compared with other current covert communication schemes, the present invention has a set of steganographic algorithms with intellectual property rights, which can guarantee the effectiveness and diversity of the steganographic algorithms.

6. The present invention can be applied to various occasions that require covert communication, such as covert communication of commercial secrets and covert communication of personal privacy under general environment, and covert communication of diplomacy and military covert communication under special environment, such as being strongly monitored by the other country Embassies or personnel stationed abroad under supervision, and military units or personnel in environments where conventional military means of communication are supervised and obstructed.

Description of drawings

FIG. 1 is a flow chart of the information embedding method using 2D/3D video in the present invention.

FIG. 2 is a flow chart of the information extraction method using 2D/3D video in the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

As shown in Figure 1, the information embedding method that the present invention uses 2D/3D video comprises the following steps:

(1) Acquire 2D/3D video, and receive the embedded control information, message and key input by the user; specifically, the embedded control information input by the user includes the embedded algorithm selected by the user and the conditions related to the algorithm, and the present invention sends The information that the party needs to send hidden is called "hidden message", which can be referred to as a message for short, and the maximum length is agreed to be L≤4096 Chinese characters (or 65536Bits), which already meets the needs of covert communication under normal circumstances. In order to strengthen the robustness of covert communication and resist steganalysis, L is divided into several message segments, and the length of each message segment is 16 Chinese characters (or 256Bits), so L can be divided into a maximum of 256 message segments;

(2) Encapsulate the message input by the user according to the following format (referred to as format 1 in this specification) to generate multiple bit strings. In the present invention, a bit string generated by this step is called a message encryption segment, and the encryption segment The total number of is the number of message segments, and each encrypted segment includes segment header identifier, segment identification number, segment data length, segment data and segment tail identifier;

(3) Encapsulate the embedded control information according to the following format (referred to as format 2 in this specification) to generate a bit string, which is called the embedded control information secret segment in the present invention; specifically, the embedded control information Including the segment header flag, the embedded control information input by the user, the message segment number and the segment end identifier, a total of 64 bits.

(4) Use the asymmetric RSA algorithm to encrypt the bit string generated in step (3) to generate the encrypted embedded control information segment, and set the counter i=1, which will be used to identify the first time the embedded control information The completely embedded flag CI_flag is set to 0, and the flag Cnt_embed used to identify the repeated embedding times of the message is set to 0; it should be understood that the encryption algorithm used for encryption here is not limited to the RSA algorithm, and can also be other encryption algorithms.

(5) Decode the i-th frame of the 2D/3D video, and judge whether the decoded i-th frame meets the processing conditions of the control information embedding algorithm, if so, go to step (6), otherwise go to step (7) ;

(6) Use the control information embedding algorithm to embed the encrypted control information segment generated in step (4) into the i-th frame, and judge whether the flag CI_flag is 0 or 1, if it is 0, set the flag CI_flag to 1, and then turn to Go to step (9), if it is 1, go directly to step (9);

(7) Judging whether the flag CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the embedding algorithm selected by the user, if CI_flag is 1 and meets the processing conditions, then go to step (8), otherwise go to step (9 );

(8) Use the embedding algorithm selected by the user to embed multiple message encryption segments generated in step (2) into the i-th frame, and judge whether all of them are embedded, if so, set the flag Cnt_embed=Cnt_embed+1, and then go to step (9), Otherwise go to step (9);

(9) Write the i-th frame into a 2D/3D video file in H.264 format;

(10) Determine whether the i-th frame is the last frame of the 2D/3D video, if it is, it means that a new 2D/3D video containing the message has been generated, and then go to step (11), otherwise set i=i+1, and then Return to step (5);

(11) Determine whether the flag Cnt_embed is greater than 0, if so, prompt the user that the redundancy of the embedded message is equal to Cnt_embed, otherwise, prompt the user that the video capacity is insufficient and the video needs to be replaced.

The present invention uses the information embedding system of 2D/3D video to comprise:

The first module is used to obtain 2D/3D video, and receive the embedded control information, message and key input by the user; specifically, the embedded control information input by the user includes the embedded algorithm selected by the user and the conditions related to the algorithm. The invention calls the information that the sender needs to send hidden as "hidden message", which can be referred to as a message for short, and agrees that its maximum length is L≤4096 Chinese characters (or 65536Bits), which has met the needs of covert communication in general. In order to strengthen the robustness of covert communication and resist steganalysis, L is divided into several message segments, and the length of each message segment is 16 Chinese characters (or 256Bits), so L can be divided into a maximum of 256 message segments;

The second module is used to encapsulate the message input by the user according to the following format (referred to as format 1 in this specification) to generate multiple bit strings. In the present invention, a bit string generated by this step is called a message encryption segment , the total number of encrypted segments is the number of message segments, and each encrypted segment includes segment header identifier, segment identification number, segment data length, segment data and segment tail identifier;

The third module is used to encapsulate the embedded control information according to the following format (referred to as format 2 in this specification) to generate a bit string, which is called the embedded control information secret segment in the present invention; specifically, Embedded control information includes segment header flag, user-input embedded control information, number of message segments, and segment end identifier, totaling 64 bits.

The fourth module is used to encrypt the bit string generated by the third module using the asymmetric RSA algorithm to generate the encrypted embedded control information segment, and set the counter i=1, which will be used to identify the embedded control information Set the flag CI_flag for a complete embedding to 0, and set the flag Cnt_embed used to identify the number of repeated embeddings of the message to 0; it should be understood that the encryption algorithm used for encryption here is not limited to the RSA algorithm, and can also be other encryption algorithms .

The fifth module is used to decode the i-th frame of the 2D/3D video, and judge whether the decoded i-th frame meets the processing conditions of the control information embedding algorithm, and if so, transfer to the sixth module, otherwise transfer to the seventh module;

The seventh module is used to embed the encrypted control information segment generated by the fourth module into the i-th frame using the control information embedding algorithm, and judge whether the flag CI_flag is 0 or 1, and if it is 0, set the flag CI_flag to 1, Then transfer to the ninth module, if it is 1, directly transfer to the ninth module;

The seventh module is used to judge whether the flag CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the embedding algorithm selected by the user, if CI_flag is 1 and meets the processing conditions, then go to step eighth module, otherwise go to Ninth module;

The eighth module is used to use the embedding algorithm selected by the user to embed a plurality of message encryption segments generated by the second module into the i-th frame, and judge whether they are all embedded, if so, set the sign Cnt_embed=Cnt_embed+1, and then transfer to the ninth module , otherwise transfer to the ninth module;

The ninth module is used to write the i-th frame into a 2D/3D video file in H.264 format;

The tenth module is used to judge whether the i-th frame is the last frame of the 2D/3D video, if it is, it means that a new 2D/3D video containing the message has been generated, and then transfer to the eleventh module, otherwise set i=i+ 1, then return to the fifth module;

The eleventh module is used for judging whether the flag Cnt_embed is greater than 0, if so, prompting the user that the redundancy of the embedded message is equal to Cnt_embed, otherwise prompting the user that the video capacity is insufficient and the video needs to be replaced.

As shown in Figure 2, the present invention uses the information extraction method of 2D/3D video to comprise the following steps:

(1) Obtain the encrypted 2D/3D video, extract the key input by the user, and judge whether the key is correct, if it is correct, go to step (2), otherwise the process ends.

(2) Set the counter i=1, set the flag CI_flag used to identify the first complete extraction of the control information to 0, and set the flag Extra_flag used to identify the complete extraction of the message to 0.

(3) Decode the i-th frame of the 2D/3D video, judge whether the flag CI_flag is 0 and whether the decoded i-th frame meets the processing conditions of the control information extraction algorithm, if the flag CI_flag is 0 and meets the processing conditions of the extraction algorithm, Then go to step (4), otherwise go to step (5);

(4) Use the control information extraction algorithm to extract the control information secret segment, and extract the selection algorithm identifier, algorithm condition, and message segment number according to the following format (the present invention refers to the format as format 1), and set CI_flag to 1;

(5) Judging whether the flag CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the extraction algorithm, if CI_flag is 1 and meets the processing conditions, then go to step (6), otherwise go to step (7);

(6) Extract the encrypted segment of the message according to the extraction algorithm, and analyze the segment number and segment data from the encrypted segment according to the following format (this format is referred to as format 2 in the present invention).

(7) Determine whether all the message secret segments have been extracted, if so, set the flag Extra_flag to 1, and prompt the user that there is a new message to be accepted, and then go to step (8), otherwise go to step (8) ;

(8) Determine whether the i-th frame is the last frame of the 2D/3D video, if yes, then go to step (9), otherwise set i=i+1, and then return to step (3);

(9) Determine whether the flag Extra_flag is 1, and if so, prompt the user that there is a new message to receive; otherwise, prompt the user that the information cannot be extracted within the viewing time period.

The present invention uses the information extraction system of 2D/3D video to comprise:

The first module is used to obtain the encrypted 2D/3D video, the extraction key input by the user, and judge whether the key is correct, if it is correct, transfer to the second module, otherwise the process ends.

The second module is used to set the counter i=1, set the flag CI_flag used to identify the first complete extraction of the control information to 0, and set the flag Extra_flag used to identify the complete extraction of the message to 0.

The third module is used to decode the i-th frame of the 2D/3D video, judge whether the flag CI_flag is 0 and whether the decoded i-th frame meets the processing conditions of the control information extraction algorithm, if the flag CI_flag is 0 and meets the extraction algorithm If the processing conditions are met, then transfer to the fourth module, otherwise transfer to the fifth module;

The fourth module is used to use the control information extraction algorithm to extract the control information secret section, and extract the selection algorithm identification, algorithm condition, and message segment number according to the following format (the present invention refers to the format as format 1), and set CI_flag as 1;

The fifth module is used to judge whether the sign CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the extraction algorithm, if CI_flag is 1 and meets the processing conditions, then transfer to the sixth module, otherwise transfer to the seventh module;

The 6th module is used for extracting message secret section according to extraction algorithm, and according to following format (the present invention award this format is referred to as format 2) from secret section, analyze section number and section data.

The seventh module is used to judge whether all the message encryption sections have been extracted, if so, the flag Extra_flag is set to 1, and the user is prompted that there is a new message to be accepted, and then transfers to the eighth module, otherwise transfers to the eighth module module;

The eighth module is used to judge whether the i-th frame is the last frame of the 2D/3D video, if yes, then transfer to the ninth module, otherwise set i=i+1, and then return to the third module;

The ninth module is used for judging whether the flag Extra_flag is 1, if so, prompting the user that there is a new message to be received, otherwise prompting the user that information cannot be extracted within the viewing time period.

It is easy for those skilled in the art to understand that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention, All should be included within the protection scope of the present invention.

Claims (4)

1. An information embedding method using 2D/3D video, is characterized in that, comprises the following steps: (1) Obtain 2D/3D video, and receive embedded control information, messages and keys input by the user; (2) Encapsulate the message input by the user to generate multiple bit strings as encrypted segments. The total number of encrypted segments is the number of message segments, and each encrypted segment includes segment header identifier, segment identification number, and segment data length , segment data and end-of-segment identifier; (3) Encapsulating the embedded control information to generate a bit string, that is, the embedded control information secret section, the embedded control information secret section includes a header identifier, an algorithm flag bit, an algorithm condition bit, a message segment number and a segment tail identifier; (4) Use an encryption algorithm to encrypt the bit string generated in step (3) to generate the encrypted embedded control information secret segment, and set the counter i=1, which will be used to identify the first complete embedding of the embedded control information CI_flag is set to 0, and the flag Cnt_embed used to identify the repeated embedding times of the message is set to 0; (5) Decoding the i-th frame of the 2D/3D video, and judging whether the decoded i-th frame meets the processing conditions of the control information embedding algorithm, if so, proceed to step (6), otherwise proceed to step (7) ; (6) Use the control information embedding algorithm to embed the encrypted embedded control information segment generated in step (4) into the i-th frame, and judge whether the sign CI_flag is 0 or 1, if it is 0, set the sign CI_flag to 1, and then Go to step (9), if it is 1, go to step (9) directly; (7) Whether the judgment mark CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the embedding algorithm selected by the user, if CI_flag is 1 and meets the processing conditions, then proceed to step (8), otherwise proceed to step (9) ); (8) Embed the i-th frame with a plurality of message secret segments generated by step (2) using the embedding algorithm selected by the user, and judge whether all of them are embedded, if so, set the sign Cnt_embed=Cnt_embed+1, then proceed to step (9), Otherwise, go directly to step (9); (9) write the i-th frame into a 2D/3D video file in H.264 format; (10) judge whether the i-th frame is the last frame of the 2D/3D video, if it means that a new 2D/3D video containing the message has been generated, then proceed to step (11), otherwise set i=i+1, then Return to step (5); (11) Determine whether the flag Cnt_embed is greater than 0, if so, prompt the user that the redundancy of the embedded message is equal to Cnt_embed, otherwise prompt the user that the video capacity is insufficient, and the video needs to be replaced. 2. The information embedding method according to claim 1, characterized in that, in the step (2), the message input by the user is encapsulated in the following format: 8-bit segment header identifier, 8-bit segment identification number, 8-bit segment Data length, segment data, 8-bit end-of-segment identifier. 3. The information embedding method according to claim 1, wherein, in the step (3), the embedded control information is encapsulated in the following format: 8-bit segment header identifier, 4-bit algorithm flag, 36-bit algorithm condition bit, 8-bit message segment number, and 8-bit end-of-segment identifier. 4. An information embedding system using 2D/3D video, characterized in that it comprises: The first module is used to obtain 2D/3D video, and receive embedded control information, messages and keys input by the user; The second module is used to encapsulate the message input by the user to generate multiple bit strings as secret segments, the total number of secret segments is the number of message segments, and each secret segment includes a segment header identifier, a segment identification number, Segment data length, segment data and end-of-segment identifier; The third module is used to encapsulate the embedded control information to generate a bit string, that is, the embedded control information secret segment, the embedded control information secret segment includes the header flag bit, the algorithm flag bit, the algorithm condition bit, the message segment number and the segment tail identifier; The fourth module is used to encrypt the bit string generated by the third module using an encryption algorithm to generate the encrypted embedded control information segment, and set the counter i=1, which will be used to identify the first complete embedding of the embedded control information The flag CI_flag is set to 0, and the flag Cnt_embed used to identify the repeated embedding times of the message is set to 0; The fifth module is used to decode the i-th frame of the 2D/3D video, and judge whether the decoded i-th frame meets the processing conditions of the control information embedding algorithm, and if so, transfer to the sixth module, otherwise transfer to the seventh module; The seventh module is used to use the control information embedding algorithm to embed the encrypted embedded control information segment generated by the fourth module into the i-th frame, and judge whether the flag CI_flag is 0 or 1, and if it is 0, set the flag CI_flag to 1 , and then transfer to the ninth module, if it is 1, directly transfer to the ninth module; The seventh module is used to judge whether the flag CI_flag is 1, and whether the i-th frame after decoding meets the processing conditions of the embedding algorithm selected by the user, if CI_flag is 1 and meets the processing conditions, then go to step eighth module, otherwise go to Ninth module; The eighth module is used to embed a plurality of message encryption segments generated by the second module into the i-th frame using the embedding algorithm selected by the user, and judge whether all of them are embedded, if so, set the sign Cnt_embed=Cnt_embed+1, and then transfer to the ninth module , otherwise directly transfer to the ninth module; The ninth module is used to write the i-th frame into a 2D/3D video file in H.264 format; The tenth module is used to judge whether the i-th frame is the last frame of the 2D/3D video, if it means that a new 2D/3D video containing the message has been generated, then transfer to the eleventh module, otherwise set i=i+ 1, then return to the fifth module; The eleventh module is used for judging whether the flag Cnt_embed is greater than 0, if so, prompting the user that the redundancy of the embedded message is equal to Cnt_embed, otherwise prompting the user that the video capacity is insufficient and the video needs to be replaced.