CN110572640A - GB35114 standard-based video signature verification evaluation tool and method - Google Patents
GB35114 standard-based video signature verification evaluation tool and method Download PDFInfo
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- CN110572640A CN110572640A CN201910942803.1A CN201910942803A CN110572640A CN 110572640 A CN110572640 A CN 110572640A CN 201910942803 A CN201910942803 A CN 201910942803A CN 110572640 A CN110572640 A CN 110572640A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
- H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
- H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
- H04N21/26613—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel for generating or managing keys in general
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
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Abstract
The invention discloses a video signature verification evaluation tool and method based on GB35114 standard, comprising the following steps: a data set storage module: the system comprises a data set and a key set, wherein the data set comprises a cryptographic hash algorithm salt data set, a video signature forward test data set and a video signature reverse test data set, and the key set comprises an asymmetric encryption private key set and an asymmetric decryption public key set; video signature and signature verification evaluation tool: and the data set storage module is in communication connection with the tested device, and is used for calling the corresponding key set and/or data set from the data set storage module to be sent to the tested device and testing whether the signature and/or signature verification functions and performances of the tested device meet the GB35114 standard. The invention can solve a plurality of messy images about video safety in the prior public security video monitoring network.
Description
Technical Field
the invention relates to the technical field of data security, in particular to a video signature verification evaluation tool and method based on GB35114 standard.
Background
the video monitoring network in China enters a digital high-definition era, digitization and networking of video monitoring are achieved, more and more network threats and attacks faced by a video monitoring system cause network security problems such as the possibility of tampering of video data information, and especially, how to guarantee and strengthen the security of the video data information and guarantee the integrity of the video data information become important problems generally concerned by the industry under the background of popularization and application of new technologies such as large-scale networking, cloud computing and artificial intelligence at present.
The security threats and attack means faced by video monitoring systems are changed greatly, and most video network systems do not follow up security protection, so that the security situation of video data is increasingly severe. Digital signature algorithms have been developed. Digital signatures are one of the most important development directions in the field of public key cryptography, and are important technical and theoretical guarantees for providing data authentication, integrity and non-repudiation in data transmission.
Digital signatures are a security technology that has been developed along with the development of information network technology, and the purpose is to implement the traditional paper signature or seal function by technical means, which is used to identify the signer and recognize an electronic data content. The method can also verify whether the original text of the file changes in the transmission process, and ensure the integrity, authenticity and non-repudiation of the transmitted electronic file. The digital signature is an important part in a public key cryptosystem, has important functions in many occasions, and can prevent data such as videos from being tampered by utilizing the technology in the field of security protection and ensure the integrity of information.
disclosure of Invention
aiming at the defects of the prior art, the invention aims to provide a video signature verification and evaluation tool and method based on the GB35114 standard, which can solve a plurality of messy images about video safety in the conventional public security video monitoring network.
in order to achieve the purpose, the invention adopts the following technical scheme:
A video signature verification and evaluation tool based on GB35114 standard comprises:
a data set storage module: the device comprises a data storage module, a data processing module and a data processing module, wherein the data storage module is used for storing a test data support data set, the test data support data set comprises a secret key set and a data set, and the data set comprises a cryptographic hash algorithm salt value data set, a video signature forward test data set and a video signature reverse test data set; the key set comprises an asymmetric encryption private key set and an asymmetric decryption public key set;
video signature and signature verification evaluation tool: and the data set storage module is in communication connection with the tested device, and is used for calling the corresponding key set and/or data set from the data set storage module to be sent to the tested device and testing whether the signature and/or signature verification function and performance of the tested device meet the GB35114 standard.
Furthermore, the video signature and signature verification evaluation tool comprises a security chip.
the invention also provides a method for detecting the coding equipment with the digital signature function by using the video signature verification and evaluation tool based on the GB35114 standard, which comprises the following steps:
S1, selecting an asymmetric encryption private key, an asymmetric decryption public key and a cryptographic hash algorithm salt value data from the test data support data set by the video signature and signature verification evaluation tool;
s2, sending the key and the data information selected in the step S1 to the tested coding device, and synchronizing the key and the data information to a database; the database is used for storing asymmetric key VKEK information, a cryptographic hash algorithm salt value, test data and test state information which are used in each test;
s3, the tested coding device performs a video stream signature operation by using a given key;
s4, testing:
(1) The tested coding equipment can start or stop the video digital signature function according to the video signature and the signaling of the signature checking evaluation tool, and the signaling test can be considered to pass;
(2) The video signature and signature verification evaluation tool respectively carries out video on demand in two modes of key change and key invariance on the tested coding equipment with the digital signature function started, wherein successful on demand is passed, and unsuccessful on demand is not passed;
(3) The video signature and signature verification evaluation tool respectively carries out operations of video recording, retrieval, playback, storage, downloading and derivation on the signed video in two modes of key change and key invariance on the tested coding equipment with the digital signature function enabled, if the operations are successful, the test is considered to be passed, otherwise, the test is judged to be failed;
(4) The video signature and signature verification evaluation tool judges the video signature performance of the tested coding equipment and judges whether the video signature performance meets a preset standard or not;
and S5, if all the tests in the step S4 are passed, the video signature function and the performance of the tested coding device can be considered to be in accordance with the GB35114 standard, otherwise, the video signature function of the tested coding device is considered to be not in accordance with the GB35114 standard.
Further, in step S4 (4), the signature delay of the tested encoding apparatus due to the video signature operation does not exceed 150ms, and otherwise, the encoding apparatus does not pass.
The invention also provides a method for detecting the decoding equipment with the video signature checking function by using the video signature checking and evaluating tool based on the GB35114 standard, which comprises the following steps:
s1, the video signature and signature verification evaluation tool selects forward test data and test cases to be tested and reverse test data and test cases from the video signature forward test data set and the video signature reverse test data set respectively, and selects an asymmetric encryption private key, an asymmetric decryption public key and cryptographic hash algorithm salt value data from the test data support data set; sending the selected data and the key information to the tested decoding equipment with the video signature verification function, and synchronizing the selected data and the key information to a database; the database is used for storing asymmetric key VKEK information, a cryptographic hash algorithm salt value, test data and test state information which are used in each test;
S2, testing:
(1) the method comprises the steps that a forward test data and a test case are sent to start to carry out video test on a tested decoding device, if the tested decoding device can successfully check and sign the sent forward test data and the test case and normally play the forward test data and the test case, the forward test data and the test case are considered to pass, and if not, the forward test data and the test case are considered not to pass;
(2) the reverse test data and the test case are utilized to start the video test on the decoding equipment to be tested, and if the decoding equipment to be tested can not carry out signature verification on the sent reverse test data or can not play normally, the decoding equipment to be tested can be considered to pass; if the signature verification is successful and the signature can be played normally, the signature verification is invalid, and the test can be considered to fail;
(3) The video signature and signature verification evaluation tool judges the signature verification performance of the decoding equipment and judges whether the signature verification performance reaches a preset standard or not;
and S3, if all the tests in the step S2 are passed, the video signature checking function and the performance of the decoding device under test can be considered to be in accordance with the GB35114 standard, otherwise, the video signature checking function of the decoding device under test is considered to be not in accordance with the GB35114 standard.
further, in step S2 (2), the error points set in the reverse test data and test cases include that veke versions are not synchronized, veke is not replaced according to the protocol, and an erroneous veke version is used; and if the tested decoding equipment cannot correctly verify the signature and play the video abnormally for various error points, the tested decoding equipment is considered to pass, and otherwise, the tested decoding equipment is considered not to pass.
further, in step S2 (3), the verification delay added by the tested decoding apparatus due to the video verification is not more than 150ms, and the decoding apparatus passes, otherwise, the decoding apparatus does not pass.
the invention has the beneficial effects that: the invention can solve the problems of various chaos about video safety in the existing public security video monitoring network, can carry out omnibearing detection on the video information of the video monitoring networking in the public security field specified in the standard and the technical requirements for controlling the safety protection of signaling information (including the technical requirements of the interconnection structure, the certificate and the key of the public security video monitoring networking information safety system, the basic function requirement, the performance requirement and the like), solves the problem that no tool is used for fairly and conveniently evaluating whether the systems and equipment of different manufacturers can meet the standard to support interconnection sharing in the public security monitoring networking construction, and simultaneously solves the problem that related product developers cannot develop products meeting the standard without a comprehensive testing tool.
Drawings
FIG. 1 is a schematic view of a tool structure according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the practice of example 2 of the present invention;
fig. 3 is a schematic diagram of an embodiment 3 of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.
The following is a brief description of the terms related to this embodiment:
the Video Key Encryption Key is generated and distributed to a symmetric Key of front-end equipment with a safety function by a Video monitoring safety management platform, and is changed according to a certain rule for encrypting the Video Key so as to realize confidentiality protection of transmission;
RBSP, RawByteSequencePayload raw byte sequence load;
the Network Abstraction Layer (NAL), each frame of video data is composed of one or more NAL unit data, each NAL unit is composed of a NAL unit header and various types of RBSP, and the data appears in the form of RBSP;
IDR, instant Decoding Refresh, the image sequence is composed of IDR image (i.e. I frame) and zero or more non-IDR image (i.e. P frame) following immediately according to the Decoding order, generally speaking, each second video needs at least one key frame (I frame);
GOP, Group Of Picture Group, i.e. the period Of the key frames, i.e. the distance between two IDR frames, maximum number Of frames Of a Group Of frames, each Group Of GOP is composed Of frames including I-frames, P-frames, etc.
example 1
a video signature verification and evaluation tool based on GB35114 standard is shown in figure 1 and comprises:
A data set storage module: the device comprises a data storage module, a data processing module and a data processing module, wherein the data storage module is used for storing a test data support data set, the test data support data set comprises a secret key set and a data set, and the data set comprises a cryptographic hash algorithm salt value data set, a video signature forward test data set and a video signature reverse test data set; the key set comprises an asymmetric encryption private key set and an asymmetric decryption public key set;
video signature and signature verification evaluation tool: and the data set storage module is in communication connection with the tested device, and is used for calling the corresponding key set and/or data set from the data set storage module to be sent to the tested device and testing whether the signature and/or signature verification function and performance of the tested device meet the GB35114 standard.
furthermore, the video signature and signature verification evaluation tool comprises a security chip.
example 2
The following provides a specific application example of the evaluation tool in detecting the coding device with the digital signature function according to embodiment 1, and the deployment is shown in fig. 2:
1. the video signature and signature verification evaluation tool selects an asymmetric encryption private key, an asymmetric decryption public key and cryptographic hash algorithm salt value data from the test data support data set;
2. sending the key and the data information selected in the step 1 to the tested coding equipment, and synchronizing the key and the data information to a database; the database is used for storing asymmetric key VKEK information, cryptographic hash algorithm salt values, test data and test state information which are used in each test, and the contents are used for recording and analyzing a test process, judging a test result and the like.
3. the encoding device under test performs a video stream signature operation by using a given key;
4. and (3) testing:
(1) The tested coding equipment can start or stop the video digital signature function according to the video signature and the signaling of the signature checking evaluation tool, and the signaling test can be considered to pass;
(2) the video signature and signature verification evaluation tool respectively carries out video on demand in two modes of key change and key invariance on the tested coding equipment with the digital signature function started, wherein successful on demand is passed, and unsuccessful on demand is not passed;
(3) The video signature and signature verification evaluation tool respectively carries out operations of video recording, retrieval, playback, storage, downloading and derivation on the signed video in two modes of key change and key invariance on the tested coding equipment with the digital signature function enabled, if the operations are successful, the test is considered to be passed, otherwise, the test is judged to be failed;
(4) The video signature and signature verification evaluation tool judges the video signature performance of the tested coding equipment, the signature delay of the tested coding equipment caused by the video signature operation does not exceed 150ms, and the tested coding equipment is passed, otherwise, the tested coding equipment is not passed;
5. If all the tests in the step 4 pass, the video signature function and the performance of the encoding device under test can be considered to be in accordance with the GB35114 standard, and if any test does not pass, the video signature function of the encoding device under test is considered to be not in accordance with the GB35114 standard.
it should be noted that the above video-related key algorithm needs to test the algorithms required to be supported by the national standards such as SM2 and SM 3.
Example 3
the following provides a specific application example of the evaluation tool in the detection of the decoding device with the video signature verification function according to embodiment 1, and the deployment is shown in fig. 3:
1. When the video signature and signature verification evaluation tool detects decoding equipment, firstly, the evaluation tool selects forward test data of a video signature or reverse test data of a video signature from a test data support data set;
2. the video signature and signature verification evaluation tool is used for carrying out on-demand and playback operations on the tested decoding equipment;
3. and testing and judging the label checking performance of the tested decoding equipment, and if all the label checking performances pass through, determining that the video label checking function and performance of the decoding equipment meet the national standard requirements.
In the video signature verification and debugging, the forward test data of the video signature for verifying the video signature comprises the following two types:
1) Standard compliant signature data video 1:
the functions are as follows: the signed video data accords with the syntax specification of a signing message of a national cryptographic algorithm;
The following steps are described: and detecting that the signed video data in the product conforms to the SM2 cryptographic algorithm encrypted signature message syntax specification.
2) standard compliant signature data video 2:
The functions are as follows: the signed video data conforms to the usage specification of the national cryptographic algorithm.
the following steps are described: and detecting that the signed video data in the product conforms to the SM2 national cryptographic algorithm use specification.
In the video signature verification and debugging, the video signature reverse test data for video signature verification comprises the following three types:
1) Video 1 of signature data not conforming to the standard
The functions are as follows: the signed video data does not conform to the national cryptographic algorithm signed message syntax specification.
The following steps are described: the inside generates data which does not conform to the SM2 cryptographic algorithm encryption message syntax specification by destroying the SM2 data format, and detects that the signed video data in the product does not conform to the SM2 cryptographic algorithm encryption signature message syntax specification.
2) Video of signature data not conforming to the standard 2
the functions are as follows: the signed video data does not conform to the usage specification of the cryptographic algorithm.
the following steps are described: and internally generating data which does not conform to the SM2 cryptographic algorithm using specification by a Z-value-free mode, and detecting that the signed video data in the product does not conform to the SM2 cryptographic algorithm using specification.
3) video 3 of signature data not meeting the standard
the functions are as follows: video whose format does not conform to the standard.
the following steps are described: and (3) converting the video data into video data of different video formats (such as H.264), and checking the video format conformity by the detection platform product.
the standardized evaluation implementation process of the video signature verification function of the decoding equipment is as follows:
1. the video signature and signature verification evaluation tool respectively selects forward test data and a test case to be tested and reverse test data and a test case from the video signature forward test data set and the video signature reverse test data set, and selects an asymmetric encryption private key, an asymmetric decryption public key and cryptographic hash algorithm salt value data from the test data support data set; sending the selected data and the key information to the tested decoding equipment with the video signature verification function, and synchronizing the selected data and the key information to a database;
2. testing
(1) the method comprises the steps that a forward test data and a test case are sent to start to carry out video test on a tested decoding device, if the tested decoding device can successfully check and sign the sent forward test data and the test case and normally play the forward test data and the test case, the forward test data and the test case are considered to pass, and if not, the forward test data and the test case are considered not to pass;
(2) the reverse test data and the test case are utilized to start the video test on the decoding equipment to be tested, and if the decoding equipment to be tested can not carry out signature verification on the sent reverse test data or can not play normally, the decoding equipment to be tested can be considered to pass; if the signature verification is successful and the signature can be played normally, the signature verification is invalid, and the test can be considered to fail;
The error points set in the reverse test data and test cases include non-synchronization of vekk versions, non-agreed replacement of vekk, use of erroneous vekk, etc. If the tested decoding equipment can not correctly verify the signature successfully aiming at various errors and the played video is abnormal, the tested decoding equipment is considered to pass, otherwise, the tested decoding equipment is considered not to pass;
(3) The video signature and signature verification evaluation tool judges the signature verification performance of the decoding equipment, the signature verification delay increased by the tested equipment due to video signature verification does not exceed 150ms, and the tested equipment does not pass the signature verification;
3. and if the tests in the step 2 are all passed, the video signature checking function and the performance of the decoding equipment to be tested can be considered to be in accordance with the GB35114 standard, otherwise, the video signature checking function of the decoding equipment to be tested is considered to be not in accordance with the GB35114 standard.
Various corresponding changes and modifications can be made by those skilled in the art based on the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (7)
1. a video signature verification and evaluation tool based on GB35114 standard is characterized by comprising:
a data set storage module: the device comprises a data storage module, a data processing module and a data processing module, wherein the data storage module is used for storing a test data support data set, the test data support data set comprises a secret key set and a data set, and the data set comprises a cryptographic hash algorithm salt value data set, a video signature forward test data set and a video signature reverse test data set; the key set comprises an asymmetric encryption private key set and an asymmetric decryption public key set;
video signature and signature verification evaluation tool: and the data set storage module is in communication connection with the tested device, and is used for calling the corresponding key set and/or data set from the data set storage module to be sent to the tested device and testing whether the signature and/or signature verification function and performance of the tested device meet the GB35114 standard.
2. The GB35114 standard-based video signature and signature verification tool as claimed in claim 1, wherein the video signature and signature verification tool comprises a security chip.
3. a method for detecting an encoding device with digital signature function by using the video signature verification and evaluation tool based on the GB35114 standard as claimed in any one of claims 1 to 2, comprising the steps of:
s1, selecting an asymmetric encryption private key, an asymmetric decryption public key and a cryptographic hash algorithm salt value data from the test data support data set by the video signature and signature verification evaluation tool;
s2, sending the key and the data information selected in the step S1 to the tested coding device, and synchronizing the key and the data information to a database; the database is used for storing asymmetric key VKEK information, a cryptographic hash algorithm salt value, test data and test state information which are used in each test;
s3, the tested coding device performs a video stream signature operation by using a given key;
S4, testing:
(1) The tested coding equipment can start or stop the video digital signature function according to the video signature and the signaling of the signature checking evaluation tool, and the signaling test can be considered to pass;
(2) The video signature and signature verification evaluation tool respectively carries out video on demand in two modes of key change and key invariance on the tested coding equipment with the digital signature function started, wherein successful on demand is passed, and unsuccessful on demand is not passed;
(3) the video signature and signature verification evaluation tool respectively carries out operations of video recording, retrieval, playback, storage, downloading and derivation on the signed video in two modes of key change and key invariance on the tested coding equipment with the digital signature function enabled, if the operations are successful, the test is considered to be passed, otherwise, the test is judged to be failed;
(4) the video signature and signature verification evaluation tool judges the video signature performance of the tested coding equipment and judges whether the video signature performance meets a preset standard or not;
and S5, if all the tests in the step S4 are passed, the video signature function and the performance of the tested coding device can be considered to be in accordance with the GB35114 standard, otherwise, the video signature function of the tested coding device is considered to be not in accordance with the GB35114 standard.
4. The method according to claim 3, wherein in step S4 (4), the tested encoding apparatus does not pass the signature delay caused by the video signature operation for more than 150ms, otherwise, the tested encoding apparatus does not pass the signature delay.
5. A method for detecting a decoding device with video signature verification function by using the video signature verification evaluation tool based on the GB35114 standard as claimed in claim 1, comprising the steps of:
S1, the video signature and signature verification evaluation tool selects forward test data and test cases to be tested and reverse test data and test cases from the video signature forward test data set and the video signature reverse test data set respectively, and selects an asymmetric encryption private key, an asymmetric decryption public key and cryptographic hash algorithm salt value data from the test data support data set; sending the selected data and the key information to the tested decoding equipment with the video signature verification function, and synchronizing the selected data and the key information to a database; the database is used for storing asymmetric key VKEK information, a cryptographic hash algorithm salt value, test data and test state information which are used in each test;
S2, testing:
(1) The method comprises the steps that a forward test data and a test case are sent to start to carry out video test on a tested decoding device, if the tested decoding device can successfully check and sign the sent forward test data and the test case and normally play the forward test data and the test case, the forward test data and the test case are considered to pass, and if not, the forward test data and the test case are considered not to pass;
(2) The reverse test data and the test case are utilized to start the video test on the decoding equipment to be tested, and if the decoding equipment to be tested can not carry out signature verification on the sent reverse test data or can not play normally, the decoding equipment to be tested can be considered to pass; if the signature verification is successful and the signature can be played normally, the signature verification is invalid, and the test can be considered to fail;
(3) the video signature and signature verification evaluation tool judges the signature verification performance of the decoding equipment and judges whether the signature verification performance reaches a preset standard or not;
And S3, if all the tests in the step S2 are passed, the video signature checking function and the performance of the decoding device under test can be considered to be in accordance with the GB35114 standard, otherwise, the video signature checking function of the decoding device under test is considered to be not in accordance with the GB35114 standard.
6. The method according to claim 5, wherein in step S2 (2), the error points set in the reverse test data and test cases include version of VKEK out of sync, not replacing VKEK according to protocol, using erroneous VKEK; and if the tested decoding equipment cannot correctly verify the signature and play the video abnormally for various error points, the tested decoding equipment is considered to pass, and otherwise, the tested decoding equipment is considered not to pass.
7. the method of claim 5, wherein in step S2 (3), the tested decoding device does not pass the video signature verification if the added signature verification delay is not more than 150 ms.
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| CN110830777B (en) * | 2019-11-29 | 2020-11-17 | 公安部第一研究所 | Method for previewing GB/T28181 standard monitoring video through cross-browser based on WebRTC protocol |
| CN114640487A (en) * | 2020-12-16 | 2022-06-17 | 慧盾信息安全科技(北京)有限公司 | GB35114 standard real-time detection system and method for avoiding interruption of operation of video monitoring equipment |
| CN114640487B (en) * | 2020-12-16 | 2024-03-12 | 慧盾信息安全科技(北京)有限公司 | GB35114 standard real-time detection system and method for avoiding interruption of operation of video monitoring equipment |
| CN112788045A (en) * | 2021-01-21 | 2021-05-11 | 杭州迪普科技股份有限公司 | Safety protection method and device for network camera |
| CN112788045B (en) * | 2021-01-21 | 2023-02-24 | 杭州迪普科技股份有限公司 | Safety protection method and device for network camera |
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