CN108881205A - A kind of safety broadcasting system and playback method of HLS Streaming Media - Google Patents
A kind of safety broadcasting system and playback method of HLS Streaming Media Download PDFInfo
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- CN108881205A CN108881205A CN201810590071.XA CN201810590071A CN108881205A CN 108881205 A CN108881205 A CN 108881205A CN 201810590071 A CN201810590071 A CN 201810590071A CN 108881205 A CN108881205 A CN 108881205A
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- key
- server
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- token
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/0435—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/321—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving a third party or a trusted authority
- H04L9/3213—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving a third party or a trusted authority using tickets or tokens, e.g. Kerberos
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses the safety broadcasting systems and playback method of a kind of HLS Streaming Media ensure that the safety of key by encrypting to slice key.Simultaneously, using client and the good key schedule of server commitment, authentication token generating at random, constantly updating is generated into key, for encrypting and decrypting video segment key, the safety of key is further increased, to increase the safety of files in stream media；In addition, while reaching greater security, avoiding the complex operations of installation extra client end certificate etc. since the symmetric key that client is used to decrypt is generated using assignment algorithm, keeping user when playing video simply, conveniently.
Description
Technical field
The invention belongs to Streaming Media security system technical fields, and in particular to a kind of safety broadcasting system of HLS Streaming Media,
Further relate to a kind of safe playback method of HLS Streaming Media.
Background technique
HLS (HTTP Live Streaming, the stream media network transport protocol based on HTTP) allows content provider logical
It crosses network server to client end and the audio and video stream media service of near real-time is provided.Its working principle is that entire stream is divided into
The small slice file based on HTTP is downloaded one by one, is only downloaded every time.When starting a flow media session, client
End can download the M3U8 index list file comprising metadata, for finding available Media Stream.HLS is supported by cutting
The mode of piece encryption reaches medium copyright protection.
In the prior art, provided in HLS protocol AES-128 (Advanced Encryption Standard, it is advanced
Encryption standard) audio-video code stream data ciphering method.Streaming Media generation is sliced file by server one by one, with AES-128's
Key pair slice encryption, then generates M3U8 index list file.In M3U8 index list file comprising it is encrypted slice and
It is sliced the address URL of key, is published on HTTP server later.Client downloads simultaneously parse M3U8 index list file, so
Broadcasting can be decrypted in downloading slice file and the corresponding key of slice afterwards.
But this protected mode is that single streaming media slice is encrypted, it cannot be guaranteed that the peace of key file
Entirely, the dangerous safety for just influencing whether files in stream media of key file.
Summary of the invention
The purpose of the present invention is to provide a kind of safety broadcasting systems of HLS Streaming Media, can be improved files in stream media
Safety, another object of the present invention is to provide a kind of safe playback methods of HLS Streaming Media.
The first technical solution that the present invention uses is a kind of, safety broadcasting system of HLS Streaming Media, including server-side mould
Block and client；
Server module includes content distributing server, and content distributing server is separately connected authentication server and rope
Draw listserv, authentication module, token generation module built in authentication server, index list server is sequentially connected close
Key server, encryption server, and encryption closed loop is formed, authentication server connects encryption server；
Client built-in key generation module, deciphering module, playing module, client pass through network connection content distribution clothes
Business device, and service request can be issued.
It is of the invention to be further characterized in that：
Content distributing server can receive the request of client by network, have the function of reverse proxy and provide to divide
Send out service order.
Authentication server can authentication, generate corresponding token, and be updated to the token, identity is recognized
It demonstrate,proves server and uses the authentication based on token.
Key server can generate key key-ts at random, additionally it is possible to generate received token by specified key
Algorithm is converted into key key-key.
Encryption server can make key key-ts encrypt video segment, while make key key-key to key
Key-ts is encrypted, and encrypted video slice and encryption key key-ts are obtained.
M3U8 index list file built in index list server, M3U8 index list file can be written encrypted video and cut
The address URL of piece and the address URL of encryption key key-ts.
Client can carry out authentication to authentication server, and client requests M3U8 to index list server
Index list file, and the parsing to M3U8 index list file, client generate key using specified key schedule
key-key；Client is decrypted encryption key key-ts with key key-key, obtains key key-ts, with key key-
Ts is decrypted and plays to encrypted video slice.
The another technical solution that the present invention uses is a kind of safe playback method of HLS Streaming Media uses a kind of HLS
The safety broadcasting system of Streaming Media, is specifically implemented according to the following steps：
Step 1, key server generate key key-ts at random, and encryption server is by key key-ts to video segment
It is encrypted, obtains encrypted video slice；
Step 2, client send ID authentication request to content distributing server, authentication server, are logged in
Token, and token will be logged in and be transmitted to client, with token is logged in server module transmission request, authentication takes client
Business device verifying logs in token, is transmitted separately to client and key clothes by generating authentication token after verifying, and by authentication token
Business device；
Authentication token is generated key key-key by key schedule by step 3, key server, passes through key
Key-key encrypts key key-ts, obtains encryption key key-ts；By the address URL of encrypted video slice and encryption
The M3U8 index list file of the address the URL write-in index list server of key key-ts；
Step 4, client request M3U8 index list file to index list server, and to M3U8 index list file
Parsing, obtain encrypted video slice and encryption key key-ts；Meanwhile client will be authenticated with specified key schedule
Token is converted into key key-key；
Step 5 is decrypted encryption key key-ts by key key-key, obtains key key-ts, uses key
Video segment ciphertext is decrypted in key-ts, realizes the broadcasting to video segment.
Step 1 key key-ts and key key-key is 128 symmetrical code keys.
Step 2 detailed process is：ID authentication request, content distribution clothes are sent to content distributing server by client
ID authentication request is processed into identity authentication service instruction by business device, and identity authentication service instruction is transmitted to authentication module
Authentication is carried out, identity authentication service instruction is transmitted to token generation module after being verified, and in token generation module
Inside be converted into logging in token, this logs in token and is transmitted to client by content distributing server, client with log in token to
Server module sends request, and authentication server verifying logs in token, and after verifying, content distributing server generation is recognized
Demonstrate,prove token.
Present invention has the advantages that：
By encrypting to slice key, the safety of key ensure that.Meanwhile using client and server commitment
Authentication token generating at random, constantly updating is generated key, cut for encrypting and decrypting video by good key schedule
Piece key further increases the safety of key, to increase the safety of files in stream media.
In addition, reaching more high safety since the symmetric key that client is used to decrypt is generated using assignment algorithm
Property while, avoid the complex operations of installation extra client end certificate etc., keep user when playing video simply, just
Just.
Detailed description of the invention
Fig. 1 is a kind of safety broadcasting system structural schematic diagram of HLS Streaming Media of the present invention；
Fig. 2 is a kind of safe playback method flow chart of HLS Streaming Media of the present invention.
In figure, 1. content distributing servers, 2. authentication servers, 3. index list servers, 4. key servers,
5. encryption server, 6. clients.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of safety broadcasting system of HLS Streaming Media of the present invention, as shown in Figure 1, including server module and client 6；
Server module includes content distributing server 1, and content distributing server 1 is separately connected authentication server 2
With index list server 3, authentication module, token generation module built in authentication server 2, index list server 3 according to
Secondary connection key server 4, encryption server 5, and encryption closed loop is formed, authentication server 2 connects cryptographic services
Device 5；
6 built-in key generation module of client, deciphering module, playing module, client 6 pass through network connection content distribution
Server 1, and service request can be issued.
Content distributing server 1 can receive the request of client 6 by network, have the function of reverse proxy and provide
Distribute service order.
Authentication server 2 can authentication, generate corresponding token, and be updated to the token, identity
Certificate server 2 uses the authentication based on token.
Key server 4 can generate key key-ts at random, additionally it is possible to which received token is raw by specified key
Key key-key is converted at algorithm.
Encryption server 5 can make key key-ts encrypt video segment, while make key key-key to key
Key-ts is encrypted, and encrypted video slice and encryption key key-ts are obtained.
Encrypted video can be written in M3U8 index list file built in index list server 3, M3U8 index list file
The address URL of slice and the address URL of encryption key key-ts.
Client 6 can carry out authentication to authentication server 2, and client 6 is requested to index list server 3
M3U8 index list file, and the parsing to M3U8 index list file, client 6 are generated using specified key schedule
Key key-key；Client 6 is decrypted encryption key key-ts with key key-key, obtains key key-ts, and use is close
Key key-ts is decrypted and plays to encrypted video slice.
A kind of safe playback method of HLS Streaming Media, as shown in Fig. 2, the safety using a kind of HLS Streaming Media plays system
System, is specifically implemented according to the following steps：
Step 1, key server 4 generate key key-ts at random, and encryption server 5 cuts video by key key-ts
Piece is encrypted, and encrypted video slice is obtained；Key key-ts and key key-key is 128 symmetrical code keys.
Step 2, client 6 send ID authentication request to content distributing server 1, authentication server 2, are stepped on
Land token, and token will be logged in and be transmitted to client 6, client 6 with token is logged in server module transmission request, recognize by identity
The card verifying of server 2 logs in token, by generating authentication token after verifying, and authentication token is transmitted separately to 6 He of client
Key server 4；
Detailed process is：ID authentication request, content distribution service are sent to content distributing server 1 by client 6
ID authentication request is processed into identity authentication service instruction by device 1, and identity authentication service instruction is transmitted to authentication module
Authentication is carried out, identity authentication service instruction is transmitted to token generation module after being verified, and in token generation module
It is inside converted into logging in token, this logs in token and is transmitted to client 6 by content distributing server, and client 6 is with logging in token
It sends and requests to server module, the verifying of authentication server 2 logs in token, and after verifying, content distributing server 1 is raw
At authentication token.
Authentication token is generated key key-key by key schedule by step 3, key server 4, passes through key
Key-key encrypts key key-ts, obtains encryption key key-ts；By the address URL of encrypted video slice and encryption
The M3U8 index list file of the address the URL write-in index list server 3 of key key-ts.
Step 4, client 6 request M3U8 index list file to index list server 3, and to M3U8 index list text
The parsing of part obtains encrypted video slice and encryption key key-ts；Meanwhile client 6 will with specified key schedule
Authentication token is converted into key key-key.
Step 5 is decrypted encryption key key-ts by key key-key, obtains key key-ts, uses key
Video segment ciphertext is decrypted in key-ts, realizes the broadcasting to video segment.
By the above-mentioned means, the present invention a kind of safety broadcasting system and playback method of HLS Streaming Media, by close to being sliced
Key is encrypted, and ensure that the safety of key.It, will meanwhile using client and the good key schedule of server commitment
Authentication token generating at random, constantly updating generates key and further increases for encrypting and decrypting video segment key
The safety of key, to increase the safety of files in stream media；In addition, since the symmetric key that client is used to decrypt is
It is generated using assignment algorithm, while reaching greater security, avoids the complicated behaviour of installation extra client end certificate etc.
Make, keeps user when playing video simply, conveniently.
Claims (10)
1. a kind of safety broadcasting system of HLS Streaming Media, which is characterized in that including server module and client (6)；
The server module includes content distributing server (1), and content distributing server (1) is separately connected identity authentication service
Device (2) and index list server (3), authentication module, token generation module built in authentication server (2), index list
Server (3) is sequentially connected key server (4), encryption server (5), and forms encryption closed loop, identity authentication service
Device (2) connects encryption server (5)；
Client (6) the built-in key generation module, deciphering module, playing module, the client (6) pass through network connection
Content distributing server (1), and service request can be issued.
2. a kind of safe playback method of HLS Streaming Media according to claim 1, which is characterized in that the content distribution clothes
Business device (1) can receive the request of client (6) by network, have the function of reverse proxy and provide distribution service order.
3. a kind of safe playback method of HLS Streaming Media according to claim 2, which is characterized in that the authentication clothes
Be engaged in device (2) can authentication, generate corresponding token, and be updated to the token, the authentication server (2)
Using the authentication based on token.
4. a kind of safe playback method of HLS Streaming Media according to claim 3, which is characterized in that the key server
(4) key key-ts can be generated at random, additionally it is possible to which received token is converted into key by specified key schedule
key-key。
5. a kind of safe playback method of HLS Streaming Media according to claim 4, which is characterized in that the encryption server
(5) key key-ts can be made to encrypt video segment, while encrypts key key-key to key key-ts,
Obtain encrypted video slice and encryption key key-ts.
6. a kind of safe playback method of HLS Streaming Media according to claim 5, which is characterized in that the index list clothes
The address URL of encrypted video slice can be written in M3U8 index list file built in business device (3), the M3U8 index list file
With the address URL of encryption key key-ts.
7. a kind of safe playback method of HLS Streaming Media according to claim 6, which is characterized in that client (6) energy
Enough to carry out authentication to authentication server (2), the client (6) requests M3U8 rope to index list server (3)
Draw listing file, and the parsing to M3U8 index list file, the client (6) is generated using specified key schedule
Key key-key；The client (6) is decrypted encryption key key-ts with key key-key, obtains key key-
Ts is decrypted and is played to encrypted video slice with key key-ts.
8. a kind of safe playback method of HLS Streaming Media, which is characterized in that use a kind of HLS Streaming Media as described in claim 1
Safety broadcasting system, be specifically implemented according to the following steps：
Step 1, key server (4) generate key key-ts at random, and encryption server (5) cuts video by key key-ts
Piece is encrypted, and encrypted video slice is obtained；
Step 2, client (6) send ID authentication request to content distributing server (1), authentication server (2), obtain
Log in token, and token will be logged in and be transmitted to client (6), client (6) with log in token to server module send request,
Authentication server (2) verifying logs in token, by generating authentication token after verifying, and authentication token is transmitted separately to visitor
Family end (6) and key server (4)；
Authentication token is generated key key-key by key schedule by step 3, key server (4), passes through key key-
Key encrypts key key-ts, obtains encryption key key-ts；By the address URL of encrypted video slice and encryption key
The M3U8 index list file of the address URL write-in index list server (3) of key-ts；
Step 4, client (6) request M3U8 index list file to index list server (3), and to M3U8 index list text
The parsing of part obtains encrypted video slice and encryption key key-ts；Meanwhile the specified key schedule of client (6)
Authentication token is converted into key key-key；
Step 5 is decrypted encryption key key-ts by key key-key, key key-ts is obtained, with key key-ts
Video segment ciphertext is decrypted, realizes the broadcasting to video segment.
9. a kind of safe playback method of HLS Streaming Media according to claim 8, which is characterized in that key described in step 1
Key-ts and key key-key is 128 symmetrical code keys.
10. a kind of safe playback method of HLS Streaming Media according to claim 8, which is characterized in that step 2 detailed process
For：ID authentication request is sent to content distributing server (1) by client (6), content distributing server (1) recognizes identity
Card request is processed into identity authentication service instruction, and identity authentication service instruction is transmitted to authentication module progress identity and is tested
Identity authentication service instruction is transmitted to token generation module after being verified, and is converted into stepping in token generation module by card
Land token, this logs in token and is transmitted to client (6) by content distributing server, and client (6) is with logging in token to service
End module sends request, and authentication server (2) verifying logs in token, and after verifying, content distributing server (1) is generated
Authentication token.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590071.XA CN108881205B (en) | 2018-06-08 | 2018-06-08 | HLS streaming media safe playing system and playing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810590071.XA CN108881205B (en) | 2018-06-08 | 2018-06-08 | HLS streaming media safe playing system and playing method |
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| CN108881205A true CN108881205A (en) | 2018-11-23 |
| CN108881205B CN108881205B (en) | 2020-11-17 |
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| CN111294667A (en) * | 2020-03-09 | 2020-06-16 | 联通沃音乐文化有限公司 | Online video anti-theft system and method based on encryption timestamp |
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| CN114501069A (en) * | 2020-11-13 | 2022-05-13 | 北京新氧科技有限公司 | HLS-based multimedia playing method, system, device and storage medium |
| CN114666616A (en) * | 2022-03-16 | 2022-06-24 | 同方知网数字出版技术股份有限公司 | Low-cost high-confidentiality live broadcast playback method |
| CN115811625A (en) * | 2021-09-14 | 2023-03-17 | 果核数位股份有限公司 | Streaming media service method and system for customizing information security level |
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| CN111294667A (en) * | 2020-03-09 | 2020-06-16 | 联通沃音乐文化有限公司 | Online video anti-theft system and method based on encryption timestamp |
| CN112188308A (en) * | 2020-08-31 | 2021-01-05 | 北京火眼目测科技有限公司 | Method and device for generating encrypted video file library |
| CN112188308B (en) * | 2020-08-31 | 2022-08-12 | 北京火眼目测科技有限公司 | Method and device for generating encrypted video file library |
| CN114501069A (en) * | 2020-11-13 | 2022-05-13 | 北京新氧科技有限公司 | HLS-based multimedia playing method, system, device and storage medium |
| CN114501069B (en) * | 2020-11-13 | 2024-06-07 | 北京新氧科技有限公司 | HLS-based multimedia playing method, system, equipment and storage medium |
| CN115811625A (en) * | 2021-09-14 | 2023-03-17 | 果核数位股份有限公司 | Streaming media service method and system for customizing information security level |
| WO2023039694A1 (en) * | 2021-09-14 | 2023-03-23 | 果核数位股份有限公司 | Streaming service method and system capable of realizing information security level customization |
| CN114666616A (en) * | 2022-03-16 | 2022-06-24 | 同方知网数字出版技术股份有限公司 | Low-cost high-confidentiality live broadcast playback method |
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