CN107277579A - Information encipher-decipher method and set top box - Google Patents
Information encipher-decipher method and set top box Download PDFInfo
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- CN107277579A CN107277579A CN201710326595.3A CN201710326595A CN107277579A CN 107277579 A CN107277579 A CN 107277579A CN 201710326595 A CN201710326595 A CN 201710326595A CN 107277579 A CN107277579 A CN 107277579A
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- information
- top box
- set top
- pld chips
- pld
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Classifications
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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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- 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]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
- H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
- H04N21/4627—Rights management associated to the content
Abstract
The present embodiments relate to field of computer technology, a kind of information encipher-decipher method and set top box are disclosed, the set top box includes Programmable logic design chip, and this method includes：Raw information is obtained, the raw information is the information that the set top box is obtained from the data signal received；The raw information is encrypted after operation using the PLD chips, target information is obtained；Obtain after the target information, the target information is preserved to the set top box.Using the embodiment of the present invention, on the one hand, can not only efficiently reduce CPU burden, the efficiency of cryptographic operation is improved；On the other hand, information is handled by PLD chips, increases the portability of system.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of information encipher-decipher method and set top box.
Background technology
With the continuous progress of digital home's technology, the function of being realized on set top box is also more and more.With Copyright Awareness
Increasingly stronger, the audio frequency and video that many operation commercial cities have version to some high definitions carry out safety management, and record how is encrypted
System and broadcasting turn into the center of gravity that everybody pays close attention to.
At present, it is largely to carry out encryption and decryption operation by following two modes：First, adjusted, passed through based on chip hardware
Third party's custom chip, encryption and decryption hardware are added by developer；2nd, adjusted based on chip software, it is right in same chip
Data recording storage carries out soft encryption, carries out soft decryption again in broadcasting in addition.
In aforesaid way, or pass through third party's progress encryption and decryption operation so that workload is big；Or cause central processing
The added burden of device (Central Processing Unit, CPU), so as to cause system congestion interim card so that the effect of encryption and decryption
Rate is low.
The content of the invention
The embodiment of the present invention provides a kind of information encipher-decipher method and set top box, for efficiently and easily carrying out encryption and decryption behaviour
Make.
In a first aspect, the embodiments of the invention provide a kind of information ciphering method, set top box includes PLD
PLD chips, methods described includes：
Raw information is obtained, the raw information is the information that the set top box is obtained from the data signal received；
The raw information is encrypted after operation using the PLD chips, target information is obtained；
Obtain after the target information, the target information is preserved to the set top box.
It is described that operation is encrypted to the raw information using the PLD chips as a kind of optional implementation
Including：
Enter line position to the raw information using the PLD chips to exchange；
Or, the raw information is carried out using the PLD chips to negate computing.
As a kind of optional implementation, the set top box also includes central processor CPU, the CPU and PLD
Chip is connected；
Described that the raw information is encrypted before operation using the PLD chips, methods described also includes：
Received by the PLD chips after the encrypted instruction that the CPU is sent, execution is described to utilize the PLD chips pair
Operation is encrypted in the raw information.
Second aspect, the embodiments of the invention provide a kind of information decryption method, set top box includes PLD
PLD chips, methods described includes：
Receive after play instruction, it is target information, the target information to obtain the information specified by the play instruction
Raw information is encrypted the information after operation including the PLD chips, the raw information is the set top box from reception
To data signal in the information that obtains；
The target information is decrypted after operation using the PLD chips, the target information after being decrypted；
After target information after being decrypted, the target information after the decryption is played.
It is described that operation is decrypted to the target information using the PLD chips as a kind of optional implementation
Including：
Enter line position to the target information using the PLD chips to exchange；
Or, the target information is carried out using the PLD chips to negate computing.
The third aspect, the embodiments of the invention provide a kind of set top box, the set top box includes Programmable logic design
Chip, the set top box includes：
Acquisition module, for obtaining raw information, the raw information is the set top box from the data signal received
The information of middle acquisition；
Encrypting module, for the raw information to be encrypted after operation using the PLD chips, obtains target letter
Breath；
Preserving module, the target information is preserved to the set top box.
It is used as a kind of optional implementation, the encrypting module, specifically for utilizing the PLD chips to described original
Information enters line position exchange；
Or, the encrypting module, specifically for carrying out negating computing to the raw information using the PLD chips.
As a kind of optional implementation, the set top box also includes central processor CPU, the CPU and PLD
Chip is connected；The set top box also includes：
Receiving module, for receiving the encrypted instruction that the CPU is sent by the PLD chips；
The encrypting module, specifically for being received by the PLD chips after the encrypted instruction that the CPU is sent, is performed
It is described that operation is encrypted to the raw information using the PLD chips.
Fourth aspect, the embodiment of the present invention additionally provides a kind of set top box, and the set top box includes PLD
PLD chips, the set top box includes：
Receiving module, for receiving play instruction；
Acquisition module, is target information for obtaining the information specified by the play instruction, the target information includes
The PLD chips raw information are encrypted the information after operation, and the raw information set top box is from receiving
The information obtained in data signal；
Deciphering module, for the target information to be decrypted after operation using the PLD chips, after being decrypted
Target information；
Playing module, for playing the target information after the decryption.
It is used as a kind of optional implementation, the deciphering module, specifically for utilizing the PLD chips to the target
Information enters line position exchange；
Or, the deciphering module, specifically for carrying out negating computing to the target information using the PLD chips.
The beneficial effect of the embodiment of the present invention：
Implement the embodiment of the present invention, by adding PLD (Programmable Logic in set top box
Device, PLD) chip, so that raw information be encrypted operation using above-mentioned PLD chips, on the one hand, not only can be effective
Ground reduces CPU burden, improves the efficiency of cryptographic operation；On the other hand, information is handled by PLD chips, increase system
The portability of system.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to the embodiment of the present invention or background skill
The accompanying drawing used required in art is illustrated.
Fig. 1 is a kind of schematic flow sheet of information ciphering method provided in an embodiment of the present invention；
Fig. 2A is a kind of schematic diagram of a scenario of data provided in an embodiment of the present invention；
Fig. 2 B are a kind of schematic diagram of a scenario to data encryption provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic flow sheet of information decryption method provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic flow sheet of information processing method provided in an embodiment of the present invention；
Fig. 5 is a kind of structural representation of set top box provided in an embodiment of the present invention；
Fig. 6 is the structural representation of another set top box provided in an embodiment of the present invention；
Fig. 7 is the structural representation of another set top box provided in an embodiment of the present invention；
Fig. 8 is the structural representation of another set top box provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Need explanation
, the detailed description illustrated with reference to accompanying drawing is intended to as the description to various configurations, wherein can be real without being intended to indicate that
Trample unique configuration of concepts described herein.Described device embodiment and embodiment of the method are by following detailed herein
It is described in thin description, and passes through various frames, module, unit, component, circuit, step, process, algorithm etc. in the accompanying drawings
(be referred to as " key element ") is shown.These key elements can use electronic hardware, computer software or its any combination
Realize.Hardware or software are implemented as these key elements, depending on application-specific and the design being applied on total system
Constraint.
It should be noted that in the case of the special instruction do not expressed, every technology in various embodiments of the present invention
Feature, which can be considered, can be mutually combined or be combined, as long as this kind combination or the nothing with reference to the reason for being not as technology
Method is implemented.In order to which more sufficiently explanation is of the invention, some are exemplary, optionally, or preferred feature is of the invention each
It is combined together and is described with other technical characteristics in embodiment, but this combination is not essential, and should be appreciated that this and show
Example property, optionally, or preferred feature and other technical characteristics are all separable or independent each other, as long as should
Plant the reason for separating or be independently not as technology and can not implement.Some functions of technical characteristic in embodiment of the method
Property description can be understood as performing some features of the technical characteristic in the function, method or step, device embodiment and retouch
State and can be understood as performing the function, method or step using this kind of device.
The embodiment of the invention discloses a kind of information encipher-decipher method and set top box, on the one hand, not only can effectively subtract
Few CPU burden, improves the efficiency of encryption and decryption operation；On the other hand, information is handled by PLD chips, increases system
Portability.It is described in detail individually below.
Refer to Fig. 1, Fig. 1 is a kind of information ciphering method provided in an embodiment of the present invention, the information ciphering method can be with
Applied to set top box, the set top box includes Programmable logic design chip, as shown in figure 1, the information ciphering method include with
Lower step：
101st, raw information is obtained, above-mentioned raw information is the letter that above-mentioned set top box is obtained from the data signal received
Breath；
Specifically, the PLD chips can also be CPLD (Complex Programmable Logic
Device, CPLD) chip etc., the embodiment of the present invention is not especially limited.
102nd, above-mentioned raw information is encrypted after operation using above-mentioned PLD chips, obtains target information；
Specifically, operation, which is encrypted, to above-mentioned raw information in the above-mentioned PLD chips of above-mentioned utilization includes：
Enter line position to above-mentioned raw information using above-mentioned PLD chips to exchange；
Or, above-mentioned raw information is carried out using above-mentioned PLD chips to negate computing.
For example, exchanged by entering line position come exemplified by realizing cryptographic operation, the storage medium in set top box is embedded many
Media card (Embedded Multi Media Card, EMMC), then it is original before not being encrypted by taking EMMC interfaces as an example
As shown in Figure 2 A, data/address bus is 8 to data, and respectively D0-D7 such as stores the 0x2A of 16 systems, binary system is 0010_
1010, i.e., it is D7=0, D6=0, D5=1, D4=0, D3=1, D2=0, D1=1, D0=0 that data are distinguished from a high position to low level.
As shown in Figure 2 B, the left side is the data to be stored in, and centre is CPLD hardware, and the right is EMMC memory cell, is passed through
CPLD hardware carries out a transformation to data, and as shown in Figure 2 B, left D0 is switched into right S0D6, and (S represents source, i.e. source data D0
Correspondence shows data D6), the rest may be inferred, and original 0x3A has had changed into 1000_0110 after the storage of CPLD hardware conversions
I.e. hexadecimal 0x86.
It is understood that it is only a kind of citing that upper rheme, which is exchanged, that is to say, that hand over the position that can also have other modes
Change, for example, high-low-position exchange etc., the mode that the embodiment of the present invention is swapped for which specific position is not construed as limiting.
Again for example, it is that 0011_1010 data carry out negating computing by binary system, then obtains 1100_0101.
Implement the present embodiment, the cryptographic operation of information is completed based on PLD chips, central processing unit can be effectively reduced
The workload of (Central Processing Unit, CPU), on the other hand, because each BIT of data is changed,
Therefore the encryption degree of data is higher, and then effectively increases the security of information.
As a kind of optional implementation, the embodiment of the present invention additionally provides a kind of triggering PLD chips to raw information
The mode being encrypted, above-mentioned set top box also includes central processor CPU, and above-mentioned CPU is connected with above-mentioned PLD chips；
Above-mentioned that above-mentioned raw information is encrypted before operation using above-mentioned PLD chips, the above method also includes：
Received by above-mentioned PLD chips after the encrypted instruction that above-mentioned CPU is sent, execution is above-mentioned to utilize above-mentioned PLD chips pair
Operation is encrypted in above-mentioned raw information.
It is understood that it can be to be interpreted as CPU to trigger PCD chips that CPU sends encrypted instruction to PCD chips, from
And cause PLD chips that operation is encrypted.
In the present embodiment, IC bus (Inter-Integrated can be passed through between CPU and PLD chips
Circuit, IIC) communicated, Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI) can also be passed through
Progress is communicated etc., and the embodiment of the present invention is not construed as limiting.
103rd, obtain after above-mentioned target information, above-mentioned target information is preserved to above-mentioned set top box.
Implement the embodiment of the present invention, by adding PLD chips in set top box, so that using above-mentioned PLD chips to original
Operation is encrypted in information, on the one hand, can not only efficiently reduce CPU burden, improves the efficiency of cryptographic operation；The opposing party
Face, is handled information by PLD chips, increases the portability of system.
Fig. 3 is referred to, Fig. 3 is a kind of schematic flow sheet of information decryption method provided in an embodiment of the present invention, the information
Decryption method can apply to set top box, and the set top box includes Programmable logic design chip, as shown in figure 3, the information solution
Decryption method comprises the following steps：
301st, receive after play instruction, it is target information to obtain the information specified by above-mentioned play instruction；
In the embodiment of the present invention, above-mentioned target information includes above-mentioned PLD chips and raw information is encrypted after operation
Information, above-mentioned raw information is the information that above-mentioned set top box is obtained from the data signal received；
302nd, above-mentioned target information is decrypted after operation using above-mentioned PLD chips, the target information after being decrypted；
Specifically, operation, which is decrypted, to above-mentioned target information in the above-mentioned PLD chips of above-mentioned utilization includes：
Enter line position to above-mentioned target information using above-mentioned PLD chips to exchange；
Or, above-mentioned target information is carried out using above-mentioned PLD chips to negate computing.
If it is understood that the process of PLD chip encryptions operation is exchanged into line position, the processes of decryption oprerations can be with
Exchanged for position；If the process of PLD chip encryptions operation has carried out negating computing, the process of decryption oprerations can be to negate fortune
Calculate.That is, after decryption oprerations, can be with 100% recovery initial data.For example, by taking Fig. 2 B as an example, encryption behaviour
The process of work exchanges for position, and target information is binary one 000_0110, then after the operation of PLD decryption chips, the letter after decryption
Cease for Binary Zero 010_1010.Again for example, the process of cryptographic operation is negates computing, and target information is binary one 100_
0101, then carry out negating after computing, the information after decryption is 0011_1010.
303rd, after the target information after being decrypted, the target information after above-mentioned decryption is played.
Implement the embodiment of the present invention, by adding PLD chips in set top box, so that using above-mentioned PLD chips to original
Operation is encrypted in information, then when user needs to play, operation is decrypted, on the one hand, not only can be effectively
CPU burden is reduced, the efficiency of decryption oprerations is improved；On the other hand, information is handled by PLD chips, increases system
Portability.
Referring to Fig. 4, Fig. 4 is a kind of schematic flow sheet of information processing method provided in an embodiment of the present invention, the information
Processing method is applied to set top box, and the set top box includes Programmadle logic device PLD chips and central processor CPU, above-mentioned
PLD chips are connected with above-mentioned CPU, as shown in figure 4, the information processing method may comprise steps of：
401st, raw information is obtained, above-mentioned raw information is the letter that above-mentioned set top box is obtained from the data signal received
Breath；
Specifically, the PLD chips can also be CPLD (Complex Programmable Logic
Device, CPLD) chip etc., the embodiment of the present invention is not construed as limiting.
It can be entered between CPU and PLD chips by IC bus (Inter-Integrated Circuit, IIC)
Row communication, can also be communicated by Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI) progress etc., this
Inventive embodiments are not construed as limiting.
402nd, received by above-mentioned PLD chips after the encrypted instruction that above-mentioned CPU is sent, using above-mentioned PLD chips to upper
State raw information and enter line position exchange, obtain target information；
Implement the present embodiment, the cryptographic operation of information is completed based on PLD chips, central processing unit can be effectively reduced
The workload of (Central Processing Unit, CPU), on the other hand, because each BIT of data is changed,
Therefore the encryption degree of data is higher, and then effectively increases the security of information.
403rd, obtain after above-mentioned target information, above-mentioned target information is preserved to above-mentioned set top box；
404th, in the case where receiving play instruction, enter line position to above-mentioned target information using above-mentioned PLD chips and exchange,
Target information after being decrypted；
I.e. it is understood that the above-mentioned raw information of target information after the decryption.
405th, the target information after above-mentioned decryption is played.
Implement the embodiment of the present invention, data are handled based on PLD chips, increase the portability of system, because being
Additional PLD chips complete the encryption and decryption operation of information, reduce CPU workload.And it is non-to the level of encryption of data
Chang Gao, because each BIT is changed, in other words, data are completely irregular to be sayed, this allows some illegal businessmans can not
It is decrypted, PLD can read program therein unlike the chip of single-chip microcomputer or ARM etc in the method for Brute Force, so
Level of security is very high.
That is, by adding PLD chips in set top box, so as to be carried out using above-mentioned PLD chips to raw information
Encryption and decryption is operated, on the one hand, can not only efficiently reduce CPU burden, improves the efficiency of cryptographic operation；On the other hand, lead to
Cross PLD chips to handle information, increase the portability of system.
The above-mentioned method for illustrating the embodiment of the present invention, is provided below the device of the embodiment of the present invention.
Referring to Fig. 5, Fig. 5 is a kind of structural representation of set top box provided in an embodiment of the present invention, for performing this hair
The information ciphering method that bright embodiment is provided, the set top box includes PLD chips, as shown in figure 5, the set top box includes：
Acquisition module 501, for obtaining raw information, above-mentioned raw information is that above-mentioned set top box is believed from the numeral received
The information obtained in number；
Encrypting module 502, for above-mentioned raw information to be encrypted after operation using above-mentioned PLD chips, obtains target
Information；
Preserving module 503, above-mentioned target information is preserved to above-mentioned set top box.
Specifically, the PLD chips can also be CPLD chips etc., and the embodiment of the present invention is not construed as limiting.
Implement the embodiment of the present invention, by adding PLD chips in set top box, so that using above-mentioned PLD chips to original
Operation is encrypted in information, on the one hand, can not only efficiently reduce CPU burden, improves the efficiency of cryptographic operation；The opposing party
Face, is handled information by PLD chips, increases the portability of system.
Above-mentioned encrypting module 502, is exchanged specifically for entering line position to above-mentioned raw information using above-mentioned PLD chips；
Or, above-mentioned encrypting module 502, specifically for carrying out negating fortune to above-mentioned raw information using above-mentioned PLD chips
Calculate.
Implement the present embodiment, the cryptographic operation of information is completed based on PLD chips, central processing unit can be effectively reduced
The workload of (Central Processing Unit, CPU), on the other hand, because each BIT of data is changed,
Therefore the encryption degree of data is higher, and then effectively increases the security of information.
Above-mentioned set top box also includes central processor CPU, and above-mentioned CPU is connected with above-mentioned PLD chips；As shown in fig. 6, above-mentioned
Set top box also includes：
Receiving module 601, for receiving the encrypted instruction that above-mentioned CPU is sent by above-mentioned PLD chips；
Above-mentioned encrypting module, specifically for being received by above-mentioned PLD chips after the encrypted instruction that above-mentioned CPU is sent, is performed
It is above-mentioned that operation is encrypted to above-mentioned raw information using above-mentioned PLD chips.
In the present embodiment, between CPU and PLD can by IC bus (Inter-Integrated Circuit,
IIC) communicated, can also be communicated by Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI)
Etc., the embodiment of the present invention is not construed as limiting.
Retouched it should be noted that the realization of modules can also correspond to the corresponding of the embodiment of the method shown in reference picture 1
State.
Referring to Fig. 7, Fig. 7 is the structural representation of another set top box provided in an embodiment of the present invention, for performing sheet
The information decryption method that inventive embodiments are provided, the set top box includes PLD chips, as shown in fig. 7, the set top box includes：
Receiving module 701, for receiving play instruction；
Acquisition module 702, is target information, above-mentioned target information bag for obtaining the information specified by above-mentioned play instruction
The information that above-mentioned PLD chips raw information are encrypted after operation is included, above-mentioned raw information is above-mentioned set top box from receiving
Data signal in the information that obtains；
Deciphering module 703, for above-mentioned target information to be decrypted after operation using above-mentioned PLD chips, is decrypted
Target information afterwards；
Playing module 704, for playing the target information after above-mentioned decryption.
Implement the embodiment of the present invention, by adding PLD chips in set top box, so that using above-mentioned PLD chips to original
Operation is encrypted in information, then when user needs to play, operation is decrypted, on the one hand, not only can be effectively
CPU burden is reduced, the efficiency of decryption oprerations is improved；On the other hand, information is handled by PLD chips, increases system
Portability.
Above-mentioned deciphering module 703, is exchanged specifically for entering line position to above-mentioned target information using above-mentioned PLD chips；
Or, above-mentioned deciphering module 703, specifically for carrying out negating fortune to above-mentioned target information using above-mentioned PLD chips
Calculate.
Retouched it should be noted that the realization of modules can also correspond to the corresponding of the embodiment of the method shown in reference picture 3
State.
Fig. 8 is referred to, Fig. 8 is a kind of set top box 80 provided in an embodiment of the present invention, and the set top box 80 includes processor
801st, memory 802, transceiver 803 and PLD chips 804, the processor 801, memory 802, transceiver 803 and
PCD chips 804 are connected with each other by bus.
It is random access memory (Random Access Memory, RAM) that memory 402, which includes but is not limited to, read-only
Memory (Read-Only Memory, ROM), Erasable Programmable Read Only Memory EPROM (Erasable Programmable
Read Only Memory, EPROM) or portable read-only storage (Compact Disc Read-Only Memory, CD-
ROM), the memory 802 is used for dependent instruction and data.Transceiver 803 is used to receiving and sending data.
PLD chips 804 include but is not limited to CPLD chips, and the PLD chips are used to data are encrypted operation and/or solved
Close operation.
Processor 801 can be one or more CPU, and in the case where processor 801 is a CPU, the CPU can be
Monokaryon CPU or multi-core CPU.
Processor 801, the concrete function of transceiver 803 and PLD chips 804 and its detailed description, refer to method real
Example and corresponding device embodiment are applied, this is no longer going to repeat them.
In summary, by implementing the embodiment of the present invention, by adding PLD chips in set top box, so that using above-mentioned
PLD chips carry out encryption and decryption operation to raw information, on the one hand, can not only efficiently reduce CPU burden, improve encryption behaviour
The efficiency of work；On the other hand, information is handled by PLD chips, increases the portability of system.
Module or unit in all embodiments of the invention, can be by universal integrated circuit, such as CPU, or passes through
ASIC (Application Specific Integrated Circuit, application specific integrated circuit) is realized.
It should be noted that for each foregoing embodiment of the method, in order to be briefly described, therefore it is all expressed as to one it is
The combination of actions of row, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because
For according to the present invention, certain some step can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, involved action and module not necessarily this hair
Necessary to bright.
Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.
Module in set top box of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, abbreviation RAM) etc..
Claims (10)
1. a kind of information ciphering method, it is characterised in that set top box includes Programmable logic design chip, methods described bag
Include：
Raw information is obtained, the raw information is the information that the set top box is obtained from the data signal received；
The raw information is encrypted after operation using the PLD chips, target information is obtained；
Obtain after the target information, the target information is preserved to the set top box.
2. according to the method described in claim 1, it is characterised in that described that the raw information is entered using the PLD chips
Row cryptographic operation includes：
Enter line position to the raw information using the PLD chips to exchange；
Or, the raw information is carried out using the PLD chips to negate computing.
3. method according to claim 1 or 2, it is characterised in that the set top box also includes central processor CPU, institute
CPU is stated with the PLD chips to be connected；
Described that the raw information is encrypted before operation using the PLD chips, methods described also includes：
Received by the PLD chips after the encrypted instruction that the CPU is sent, execution is described to utilize the PLD chips to described
Operation is encrypted in raw information.
4. a kind of information decryption method, it is characterised in that set top box includes Programmable logic design chip, methods described bag
Include：
Receive after play instruction, the information obtained specified by the play instruction is target information, and the target information includes
The PLD chips raw information are encrypted the information after operation, and the raw information set top box is from receiving
The information obtained in data signal；
The target information is decrypted after operation using the PLD chips, the target information after being decrypted；
After target information after being decrypted, the target information after the decryption is played.
5. method according to claim 4, it is characterised in that described to be entered using the PLD chips to the target information
Row decryption oprerations include：
Enter line position to the target information using the PLD chips to exchange；
Or, the target information is carried out using the PLD chips to negate computing.
6. a kind of set top box, it is characterised in that the set top box includes Programmable logic design chip, the set top box bag
Include：
Acquisition module, for obtaining raw information, the raw information is that the set top box is obtained from the data signal received
The information taken；
Encrypting module, for the raw information to be encrypted after operation using the PLD chips, obtains target information；
Preserving module, the target information is preserved to the set top box.
7. set top box according to claim 6, it is characterised in that
The encrypting module, is exchanged specifically for entering line position to the raw information using the PLD chips；
Or, the encrypting module, specifically for carrying out negating computing to the raw information using the PLD chips.
8. the set top box according to claim 6 or 7, it is characterised in that the set top box also includes central processor CPU,
The CPU is connected with the PLD chips；The set top box also includes：
Receiving module, for receiving the encrypted instruction that the CPU is sent by the PLD chips；
The encrypting module, specifically for being received by the PLD chips after the encrypted instruction that the CPU is sent, is performed described
Operation is encrypted to the raw information using the PLD chips.
9. a kind of set top box, it is characterised in that the set top box includes Programmable logic design chip, the set top box bag
Include：
Receiving module, for receiving play instruction；
Acquisition module, is target information for obtaining the information specified by the play instruction, the target information includes described
PLD chips raw information are encrypted the information after operation, and the raw information is the set top box from the numeral received
The information obtained in signal；
Deciphering module, for the target information to be decrypted after operation using the PLD chips, the target after being decrypted
Information；
Playing module, for playing the target information after the decryption.
10. set top box according to claim 9, it is characterised in that
The deciphering module, is exchanged specifically for entering line position to the target information using the PLD chips；
Or, the deciphering module, specifically for carrying out negating computing to the target information using the PLD chips.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710326595.3A CN107277579A (en) | 2017-05-10 | 2017-05-10 | Information encipher-decipher method and set top box |
| PCT/CN2017/109080 WO2018205512A1 (en) | 2017-05-10 | 2017-11-02 | Information encryption and decryption method, set-top box, system, and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710326595.3A CN107277579A (en) | 2017-05-10 | 2017-05-10 | Information encipher-decipher method and set top box |
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| CN107277579A true CN107277579A (en) | 2017-10-20 |
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| CN201710326595.3A Pending CN107277579A (en) | 2017-05-10 | 2017-05-10 | Information encipher-decipher method and set top box |
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| WO (1) | WO2018205512A1 (en) |
Cited By (1)
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| WO2018205512A1 (en) * | 2017-05-10 | 2018-11-15 | 深圳创维数字技术有限公司 | Information encryption and decryption method, set-top box, system, and storage medium |
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| CN107277579A (en) * | 2017-05-10 | 2017-10-20 | 深圳创维数字技术有限公司 | Information encipher-decipher method and set top box |
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- 2017-05-10 CN CN201710326595.3A patent/CN107277579A/en active Pending
- 2017-11-02 WO PCT/CN2017/109080 patent/WO2018205512A1/en active Application Filing
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| WO2018205512A1 (en) | 2018-11-15 |
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