CN105357003B - Data encryption method and device - Google Patents
Data encryption method and device Download PDFInfo
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- CN105357003B CN105357003B CN201510800271.XA CN201510800271A CN105357003B CN 105357003 B CN105357003 B CN 105357003B CN 201510800271 A CN201510800271 A CN 201510800271A CN 105357003 B CN105357003 B CN 105357003B
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000011156 evaluation Methods 0.000 claims description 51
- 230000000694 effects Effects 0.000 claims description 7
- 238000005336 cracking Methods 0.000 abstract description 5
- 229910002056 binary alloy Inorganic materials 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
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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
- H04L63/20—Network architectures or network communication protocols for network security for managing network security; network security policies in general
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- Computer Networks & Wireless Communication (AREA)
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- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The embodiment of the invention discloses a method and a device for encrypting data, which are used for acquiring a prestored encryption algorithm, wherein the encryption algorithm comprises at least two preset encryption algorithms; and acquiring a combination of encryption algorithms according to a preset encryption rule, wherein the encryption rule comprises a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms or a combination of encryption algorithms actively pushed by a server. By adopting the technical scheme, the difficulty of video cracking is greatly increased, and the rights and interests of video publishers are well protected.
Description
Technical Field
The embodiment of the invention relates to the technical field of video processing, in particular to a method and a device for encrypting data.
Background
The popularization of the internet enables the spread of excellent education information resources to be simple and rapid, and people can enjoy the most wonderful teaching videos brought by high-quality teachers without going home. The Internet brings convenience to people and faces the situation of piracy tradition, so that the interests of education video owners are illegally infringed, and the enthusiasm of resource publishers is seriously damaged. Therefore, there is a need to encrypt the education video by using the content digital rights encryption protection technology to promote the harmonious, orderly and healthy development of the education information resource market.
At present, most scheme providers provide encryption schemes for encrypting video frames by a single encryption method, so that the encrypted video is easy to crack and is easy to obtain by a third party.
Disclosure of Invention
The embodiment of the invention provides a method and a device for encrypting data, aiming at solving the problem of how to improve the security of the encrypted data.
In a first aspect, an embodiment of the present invention provides a method for encrypting data, including:
acquiring a pre-stored encryption algorithm, wherein the encryption algorithm comprises at least two pre-set encryption algorithms;
and acquiring a combination of encryption algorithms according to a preset encryption rule, wherein the encryption rule comprises a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms or a combination of encryption algorithms actively pushed by a server.
Preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
receiving an instruction for selecting encryption by a user, wherein the instruction comprises at least two encryption algorithms;
and acquiring a combination of encryption algorithms according to the instruction.
Preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
generating an identifier of audio/video information to be encrypted;
and acquiring the combination of the encryption algorithm for encrypting the audio and video information according to the corresponding relation between the character value at the preset position of the identifier and the combination of the encryption algorithm.
Preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
receiving a combination of at least one encryption algorithm with the best effect actively pushed by a server;
a combination of encryption algorithms selected by the user is received.
Preferably, the method further comprises:
sending evaluation information of the combination of the encryption algorithms to the server;
updating the priority of the combination of the encryption algorithms according to the evaluation information;
the updating of the priority of the combination of encryption algorithms according to the evaluation information includes:
acquiring a priority corresponding to the number of the front evaluation according to the number of the front evaluation in the evaluation information; or,
and acquiring the priority corresponding to the ratio according to the ratio of the number of positive evaluations in the evaluation information to the number of all evaluations of the combination of the encryption algorithm.
In a second aspect, an apparatus for encrypting an algorithm, the apparatus comprising:
the device comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring pre-stored encryption algorithms, and the encryption algorithms comprise at least two pre-set encryption algorithms;
the second obtaining module is used for obtaining the combination of the encryption algorithms according to preset encryption rules, wherein the encryption rules comprise the combination of the encryption algorithms selected by a user or the combination of the randomly generated encryption algorithms or the combination of the encryption algorithms actively pushed by the server.
Preferably, the second obtaining module includes:
the first receiving unit is used for receiving an instruction for selecting encryption by a user, and the instruction comprises at least two encryption algorithms;
a first obtaining unit configured to obtain a combination of encryption algorithms according to the instruction.
Preferably, the second obtaining module includes:
the generating unit is used for generating an identifier of the audio and video information to be encrypted;
and the second acquisition unit is used for acquiring the combination of the encryption algorithm for encrypting the audio and video information according to the corresponding relation between the character value at the preset position of the identifier and the combination of the encryption algorithm.
Preferably, the second obtaining module includes:
the second receiving unit is used for receiving the combination of at least one encryption algorithm with the best effect actively pushed by the server;
a third receiving unit for receiving a combination of encryption algorithms selected by the user.
Preferably, the apparatus further comprises:
a sending module for sending evaluation information of the combination of the encryption algorithms to the server;
an updating module for updating the priority of the combination of the encryption algorithms according to the evaluation information;
the update module includes:
a third obtaining unit configured to obtain a priority corresponding to the number of positive evaluations in the evaluation information, according to the number of positive evaluations; or,
a fourth obtaining unit configured to obtain a priority corresponding to a ratio of the number of positive evaluations in the evaluation information to the number of all evaluations of the combination of the encryption algorithms.
The method and the device for encrypting data, provided by the embodiment of the invention, are used for acquiring the pre-stored encryption algorithm, wherein the encryption algorithm comprises at least two pre-set encryption algorithms; and acquiring a combination of encryption algorithms according to a preset encryption rule, wherein the encryption rule comprises a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms or a combination of encryption algorithms actively pushed by a server. By adopting the technical scheme, the difficulty of video cracking is greatly increased, and the rights and interests of video publishers are well protected.
Drawings
Fig. 1 is a schematic flow chart of a method for encrypting data according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for encrypting data according to a second embodiment of the present invention;
fig. 3 is a functional block diagram of an apparatus for an encryption algorithm according to a third embodiment of the present invention.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the steps as a sequential process, many of the steps can be performed in parallel, concurrently or simultaneously. In addition, the order of the various steps may be rearranged. The process may be terminated when its steps are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Example one
Fig. 1 is a flowchart illustrating a method for encrypting data according to an embodiment of the present invention. As shown in fig. 1, the method includes:
step 101, acquiring a pre-stored encryption algorithm, wherein the encryption algorithm comprises at least two pre-set encryption algorithms;
specifically, the encryption algorithm includes an AES encryption algorithm and other user-defined encryption algorithms.
Step 102, acquiring a combination of encryption algorithms according to a preset encryption rule, wherein the encryption rule comprises a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms or a combination of encryption algorithms actively pushed by a server.
Preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
receiving an instruction for selecting encryption by a user, wherein the instruction comprises at least two encryption algorithms;
and acquiring a combination of encryption algorithms according to the instruction.
Specifically, the user may autonomously select the encryption algorithm.
Preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
generating an identifier of audio/video information to be encrypted;
and acquiring the combination of the encryption algorithm for encrypting the audio and video information according to the corresponding relation between the character value at the preset position of the identifier and the combination of the encryption algorithm.
Specifically, binary system is carried out on the character B at a certain position of the obtained video ID to obtain two values of 0 and 1, then the encryption and decryption algorithm of AES corresponding to 0 is determined, the encryption and decryption algorithm of custom corresponding to 1 is determined, and then the encryption and decryption operation is carried out on the video according to the determined scheme.
For example, 4 encryption and decryption algorithms are adopted, each video corresponds to two encryption and decryption algorithms, the 1 st and 2 nd types are classified into one group (group 1), the 3 rd and 4 th types are classified into one group (group 2), after the binary system is carried out on the characters at a certain position of the video ID, 0 group corresponds to group 1 and 1, after the group is determined, the binary system is carried out on the characters at another position of the video ID (which is different from the previous position), 0 is the audio information of the video, the 3 rd encryption and decryption algorithm of the 1 st or the 2 nd group of the 1 group is adopted, 1 is the video information of the video, and the 4 th encryption and decryption algorithm of the 2 nd or the 2 nd group of the 1 group is adopted.
Preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
receiving a combination of at least one encryption algorithm with the best effect actively pushed by a server;
a combination of encryption algorithms selected by the user is received.
The method for encrypting data, the device for encrypting data and the mobile terminal provided by the embodiment of the invention acquire the pre-stored encryption algorithm, wherein the encryption algorithm comprises at least two pre-set encryption algorithms; and acquiring a combination of encryption algorithms according to a preset encryption rule, wherein the encryption rule comprises a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms or a combination of encryption algorithms actively pushed by a server. By adopting the technical scheme, the difficulty of video cracking is greatly increased, and the rights and interests of video publishers are well protected.
Example two
Fig. 2 is a schematic flow chart of a method for encrypting data according to a second embodiment of the present invention, where the second embodiment is optimized based on the first embodiment, in the second embodiment, step 203 and step 204 are newly added, and as shown in fig. 2, the method includes:
step 201, obtaining a pre-stored encryption algorithm, wherein the encryption algorithm comprises at least two pre-set encryption algorithms;
specifically, the encryption algorithm includes an AES encryption algorithm and other user-defined encryption algorithms.
Step 202, acquiring a combination of encryption algorithms according to a preset encryption rule, wherein the encryption rule comprises a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms or a combination of encryption algorithms actively pushed by a server;
preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
receiving an instruction for selecting encryption by a user, wherein the instruction comprises at least two encryption algorithms;
and acquiring a combination of encryption algorithms according to the instruction.
Specifically, the user may autonomously select the encryption algorithm.
Preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
generating an identifier of audio/video information to be encrypted;
and acquiring the combination of the encryption algorithm for encrypting the audio and video information according to the corresponding relation between the character value at the preset position of the identifier and the combination of the encryption algorithm.
Specifically, binary system is carried out on the character B at a certain position of the obtained video ID to obtain two values of 0 and 1, then the encryption and decryption algorithm of AES corresponding to 0 is determined, the encryption and decryption algorithm of custom corresponding to 1 is determined, and then the encryption and decryption operation is carried out on the video according to the determined scheme.
For example, 4 encryption and decryption algorithms are adopted, each video corresponds to two encryption and decryption algorithms, the 1 st and 2 nd types are classified into one group (group 1), the 3 rd and 4 th types are classified into one group (group 2), after the binary system is carried out on the characters at a certain position of the video ID, 0 group corresponds to group 1 and 1, after the group is determined, the binary system is carried out on the characters at another position of the video ID (which is different from the previous position), 0 is the audio information of the video, the 3 rd encryption and decryption algorithm of the 1 st or the 2 nd group of the 1 group is adopted, 1 is the video information of the video, and the 4 th encryption and decryption algorithm of the 2 nd or the 2 nd group of the 1 group is adopted.
Preferably, the obtaining a combination of encryption algorithms according to a preset encryption rule includes:
receiving a combination of at least one encryption algorithm with the best effect actively pushed by a server;
a combination of encryption algorithms selected by the user is received.
Step 203, sending evaluation information of the combination of the encryption algorithms to the server;
step 204, updating the priority of the combination of the encryption algorithms according to the evaluation information;
preferably, the updating the priority of the combination of encryption algorithms according to the evaluation information includes:
acquiring a priority corresponding to the number of the front evaluation according to the number of the front evaluation in the evaluation information; or,
and acquiring the priority corresponding to the ratio according to the ratio of the number of positive evaluations in the evaluation information to the number of all evaluations of the combination of the encryption algorithm.
EXAMPLE III
Fig. 3 is a functional module schematic diagram of an apparatus for an encryption algorithm according to a third embodiment of the present invention, where the apparatus may be implemented by software and/or hardware. As shown in fig. 3, the apparatus includes:
a first obtaining module 301, configured to obtain pre-stored encryption algorithms, where the encryption algorithms include at least two pre-set encryption algorithms;
specifically, the encryption algorithm includes an AES encryption algorithm and other user-defined encryption algorithms.
A second obtaining module 302, configured to obtain a combination of encryption algorithms according to a preset encryption rule, where the encryption rule includes a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms, or a combination of encryption algorithms actively pushed by a server.
Preferably, the second obtaining module 302 includes:
the first receiving unit is used for receiving an instruction for selecting encryption by a user, and the instruction comprises at least two encryption algorithms;
a first obtaining unit configured to obtain a combination of encryption algorithms according to the instruction.
Specifically, the user may autonomously select the encryption algorithm.
Preferably, the second obtaining module 302 includes:
the generating unit is used for generating an identifier of the audio and video information to be encrypted;
and the second acquisition unit is used for acquiring the combination of the encryption algorithm for encrypting the audio and video information according to the corresponding relation between the character value at the preset position of the identifier and the combination of the encryption algorithm.
Specifically, binary system is carried out on the character B at a certain position of the obtained video ID to obtain two values of 0 and 1, then the encryption and decryption algorithm of AES corresponding to 0 is determined, the encryption and decryption algorithm of custom corresponding to 1 is determined, and then the encryption and decryption operation is carried out on the video according to the determined scheme.
For example, 4 encryption and decryption algorithms are adopted, each video corresponds to two encryption and decryption algorithms, the 1 st and 2 nd types are classified into one group (group 1), the 3 rd and 4 th types are classified into one group (group 2), after the binary system is carried out on the characters at a certain position of the video ID, 0 group corresponds to group 1 and 1, after the group is determined, the binary system is carried out on the characters at another position of the video ID (which is different from the previous position), 0 is the audio information of the video, the 3 rd encryption and decryption algorithm of the 1 st or the 2 nd group of the 1 group is adopted, 1 is the video information of the video, and the 4 th encryption and decryption algorithm of the 2 nd or the 2 nd group of the 1 group is adopted.
Preferably, the second obtaining module 302 includes:
the second receiving unit is used for receiving the combination of at least one encryption algorithm with the best effect actively pushed by the server;
a third receiving unit for receiving a combination of encryption algorithms selected by the user.
By the scheme, the data encryption method and device and the mobile terminal, the pre-stored encryption algorithm is obtained, and the encryption algorithm comprises at least two preset encryption algorithms; and acquiring a combination of encryption algorithms according to a preset encryption rule, wherein the encryption rule comprises a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms or a combination of encryption algorithms actively pushed by a server. By adopting the technical scheme, the difficulty of video cracking is greatly increased, and the rights and interests of video publishers are well protected.
Further, still include: the device further comprises:
a sending module for sending evaluation information of the combination of the encryption algorithms to the server;
an updating module for updating the priority of the combination of the encryption algorithms according to the evaluation information;
the update module includes:
a third obtaining unit configured to obtain a priority corresponding to the number of positive evaluations in the evaluation information, according to the number of positive evaluations; or,
a fourth obtaining unit configured to obtain a priority corresponding to a ratio of the number of positive evaluations in the evaluation information to the number of all evaluations of the combination of the encryption algorithms.
The device can execute the methods provided by the first embodiment to the second embodiment of the invention, and has corresponding functional modules and beneficial effects for executing the methods. For details of the technology that are not described in detail in this embodiment, reference may be made to the methods provided in the first to second embodiments of the present invention.
In addition, the embodiment of the present invention further provides a server, which includes the apparatus provided in the third embodiment of the present invention, and is capable of executing the methods provided in the first to second embodiments of the present invention. The method, the device and the mobile terminal for encrypting data of the embodiment of the invention acquire the pre-stored encryption algorithm, wherein the encryption algorithm comprises at least two pre-set encryption algorithms; and acquiring a combination of encryption algorithms according to a preset encryption rule, wherein the encryption rule comprises a combination of encryption algorithms selected by a user, a combination of randomly generated encryption algorithms or a combination of encryption algorithms actively pushed by a server. By adopting the technical scheme, the difficulty of video cracking is greatly increased, and the rights and interests of video publishers are well protected.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. A method of encrypting data, the method comprising:
acquiring a pre-stored encryption algorithm, wherein the encryption algorithm comprises at least two pre-set encryption algorithms;
acquiring a combination of encryption algorithms according to a preset encryption rule;
wherein, the acquiring the combination of the encryption algorithm according to the preset encryption rule comprises:
receiving an instruction for selecting encryption by a user, wherein the instruction comprises at least two encryption algorithms;
acquiring a combination of encryption algorithms according to the instruction;
the method further comprises the following steps:
sending evaluation information of the combination of the encryption algorithms to a server;
updating the priority of the combination of the encryption algorithms according to the evaluation information.
2. The method according to claim 1, wherein the obtaining a combination of encryption algorithms according to a preset encryption rule comprises:
generating an identifier of audio/video information to be encrypted;
and acquiring the combination of the encryption algorithm for encrypting the audio and video information according to the corresponding relation between the character value at the preset position of the identifier and the combination of the encryption algorithm.
3. The method according to claim 1, wherein the obtaining a combination of encryption algorithms according to a preset encryption rule comprises:
receiving a combination of at least one encryption algorithm with the best effect actively pushed by a server;
a combination of encryption algorithms selected by the user is received.
4. The method according to any one of claims 1 to 3,
the updating of the priority of the combination of encryption algorithms according to the evaluation information includes:
acquiring a priority corresponding to the number of the front evaluation according to the number of the front evaluation in the evaluation information; or,
and acquiring the priority corresponding to the ratio according to the ratio of the number of positive evaluations in the evaluation information to the number of all evaluations of the combination of the encryption algorithm.
5. An apparatus for encrypting an algorithm, the apparatus comprising:
the device comprises a first acquisition module, a second acquisition module and a third acquisition module, wherein the first acquisition module is used for acquiring pre-stored encryption algorithms, and the encryption algorithms comprise at least two pre-set encryption algorithms;
the second acquisition module is used for acquiring the combination of encryption algorithms according to a preset encryption rule;
wherein the second obtaining module includes:
the first receiving unit is used for receiving an instruction for selecting encryption by a user, and the instruction comprises at least two encryption algorithms;
a first obtaining unit configured to obtain a combination of encryption algorithms according to the instruction;
the device further comprises:
a sending module, configured to send evaluation information of the combination of the encryption algorithms to a server;
and the updating module is used for updating the priority of the combination of the encryption algorithms according to the evaluation information.
6. The apparatus of claim 5, wherein the second obtaining module comprises:
the generating unit is used for generating an identifier of the audio and video information to be encrypted;
and the second acquisition unit is used for acquiring the combination of the encryption algorithm for encrypting the audio and video information according to the corresponding relation between the character value at the preset position of the identifier and the combination of the encryption algorithm.
7. The apparatus of claim 5, wherein the second obtaining module comprises:
the second receiving unit is used for receiving the combination of at least one encryption algorithm with the best effect actively pushed by the server;
a third receiving unit for receiving a combination of encryption algorithms selected by the user.
8. The apparatus according to any one of claims 5 to 7,
the update module includes:
a third obtaining unit configured to obtain a priority corresponding to the number of positive evaluations in the evaluation information, according to the number of positive evaluations; or,
a fourth obtaining unit configured to obtain a priority corresponding to a ratio of the number of positive evaluations in the evaluation information to the number of all evaluations of the combination of the encryption algorithms.
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| CN201510800271.XA CN105357003B (en) | 2015-11-19 | 2015-11-19 | Data encryption method and device |
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| CN201510800271.XA CN105357003B (en) | 2015-11-19 | 2015-11-19 | Data encryption method and device |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106209793A (en) * | 2016-06-30 | 2016-12-07 | 上海斐讯数据通信技术有限公司 | A kind of auth method and checking system |
| CN105959110A (en) * | 2016-06-30 | 2016-09-21 | 苏州众天力信息科技有限公司 | Multi-combination dynamic encryption communication authentication method and system |
| CN106850220B (en) * | 2017-02-22 | 2021-01-01 | 腾讯科技（深圳）有限公司 | Data encryption method, data decryption method and device |
| CN107579818B (en) * | 2017-09-15 | 2020-06-30 | 杭州安恒信息技术股份有限公司 | Communication data interaction method and communication system |
| CN111415506B (en) * | 2020-04-28 | 2022-03-18 | 成都新潮传媒集团有限公司 | Safety encryption method of multimedia control system and multimedia terminal |
| CN116846564B (en) * | 2023-08-30 | 2024-02-02 | 北京格尔国信科技有限公司 | Signature verification method, system, terminal and storage medium supporting multiple algorithms |
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