CN101513059A - Method, device and system of encrypted wireless communication - Google Patents

Method, device and system of encrypted wireless communication Download PDF

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Publication number
CN101513059A
CN101513059A CNA200780032198XA CN200780032198A CN101513059A CN 101513059 A CN101513059 A CN 101513059A CN A200780032198X A CNA200780032198X A CN A200780032198XA CN 200780032198 A CN200780032198 A CN 200780032198A CN 101513059 A CN101513059 A CN 101513059A
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China
Prior art keywords
encrypting
stream
symbols streams
encryption
signal
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CNA200780032198XA
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Chinese (zh)
Inventor
梅厄·费德尔
谢伊·弗罗因德利希
诺姆·格里
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Amimon Ltd
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Amimon Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/167—Systems rendering the television signal unintelligible and subsequently intelligible
    • H04N7/1675—Providing digital key or authorisation information for generation or regeneration of the scrambling sequence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3488—Multiresolution systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
    • H04N21/2347—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption
    • H04N21/23476—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving video stream encryption by partially encrypting, e.g. encrypting the ending portion of a movie
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2385—Channel allocation; Bandwidth allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • 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
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
    • H04N21/4405—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption
    • H04N21/44055—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs involving video stream decryption by partially decrypting, e.g. decrypting a video stream that has been partially encrypted
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/631—Multimode Transmission, e.g. transmitting basic layers and enhancement layers of the content over different transmission paths or transmitting with different error corrections, different keys or with different transmission protocols

Abstract

Some demonstrative embodiments of the invention include devices, systems and/or methods of encrypted wireless communication. Some demonstrative embodiments of the invention include a wireless transmitter to generate an encrypted wireless transmission data corresponding to an input signal. The transmission data may include at least first and second encrypted streams of symbols encrypted according to at least first and second different encryption schemes, respectively. Other embodiments are described and claimed.

Description

The method, apparatus and system of encrypted wireless communication
Cross reference
The exercise question that the application requires on June 30th, 2006 to submit to is the rights and interests of the U.S. Provisional Patent Application 60/806,410 of " Method for encryptingwireless transmitted data "; And be that the exercise question of submitting on October 20th, 2006 is the U.S. Patent application 11/551 of " Apparatus and method for uncompressed; wireless transmission of video ", the continuation application case of 641 part, this U.S. Patent application 11/551,641 exercise questions that require on October 21st, 2005 to submit to are the U.S. Provisional Patent Application 60/729 of " Apparatus and method of uncompressed; wireless transmission of video ", 459 rights and interests are incorporated all these whole disclosures here by reference into.
The field
Some execution modes relate generally to wireless communication field and, more particularly, relate to encrypted wireless communication.
Background
Radio communication develops rapidly in the past decades.Even today, in the time can using the Wireless Telecom Equipment of high-performance and high bandwidth, still require to realize higher performance with bigger bandwidth.Because many wireless communication systems are vulnerable to invade and harass influence, may expect to protect wirelessly transmitting data (transmission).
General introduction
Illustrative execution modes more of the present invention comprise equipment, system and/or the method for encrypted wireless communication.
Illustrative execution modes more of the present invention comprise the transmitting set of generation corresponding to the wirelessly transmitting data of the encryption of input signal.Described transmission data can comprise at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
According to illustrative execution modes more of the present invention, first stream of encrypting and second stream of encrypting can comprise the symbol of first and second various constellations (constellation) respectively.
According to illustrative execution modes more of the present invention, first constellation and second constellation can comprise thin constellation and thick constellation respectively.
According to illustrative execution modes more of the present invention, first stream of encrypting and second stream of encrypting can be represented a plurality of conversion coefficients corresponding to input signal.
According to illustrative execution modes more of the present invention, transmitter can comprise encryption equipment (encryptor), and it produces first stream of encrypting and second stream of encrypting by first symbols streams and second symbols streams of encrypting the expression input signal.
According to illustrative execution modes more of the present invention, encryption equipment can comprise encrypted code (encryption code) generator, and it produces one or more encrypted codes; First encrypting module, it uses encrypted code to encrypt first symbols streams according to first encipherment scheme; And second encrypting module, it uses encrypted code to encrypt second symbols streams according to second encipherment scheme.
According to illustrative execution modes more of the present invention, the encrypted code generator produces the encrypted code corresponding to a plurality of transferring data frames.
According to illustrative execution modes more of the present invention, the transmission data can comprise the enciphered message corresponding to encrypted code.
According to illustrative execution modes more of the present invention, enciphered message can comprise one or more encryption keys.
According to illustrative execution modes more of the present invention, transmitter can comprise coefficient generator, and it is applied to input signal with conversion, to produce a plurality of conversion coefficients of expression input signal; And mapper, it is mapped to first symbols streams and second symbols streams with conversion coefficient.
According to illustrative execution modes more of the present invention, input signal can comprise vision signal, for example the HDTV (High-Definition Television) signal.
Illustrative execution modes more of the present invention comprise wireless receiver, and with the wirelessly transmitting data of the encryption that receives the expression input signal, and will transmit data decryption be output signal corresponding to input signal.The transmission data can comprise at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
According to illustrative execution modes more of the present invention, first stream of encrypting and second stream of encrypting can comprise the symbol of first and second various constellations respectively.
According to illustrative execution modes more of the present invention, first constellation and second constellation can comprise thin constellation and thick constellation respectively.
According to illustrative execution modes more of the present invention, first stream of encrypting and second stream of encrypting can be represented a plurality of conversion coefficients, and output signal can be based on described a plurality of conversion coefficients.
According to illustrative execution modes more of the present invention, receiver can comprise decipher, and its stream deciphering that first stream of encrypting and second is encrypted is the symbols streams of first deciphering and the symbols streams of second deciphering.
According to illustrative execution modes more of the present invention, decipher can comprise the encrypted code generator, and it produces one or more decrypted codes; First deciphering module, it uses decrypted code to decipher first stream of encrypting according to first decrypt scheme corresponding to first encipherment scheme; And second deciphering module, it uses decrypted code to decipher second stream of encrypting according to second decrypt scheme corresponding to second encipherment scheme.
According to illustrative execution modes more of the present invention, the decrypted code generator can produce the decrypted code corresponding to the transferring data frames of a plurality of receptions.
According to illustrative execution modes more of the present invention, the transmission data of reception can comprise enciphered message.The decrypted code generator can produce decrypted code based on enciphered message
According to illustrative execution modes more of the present invention, enciphered message can comprise the one or more encryption keys that are used for encrypting first stream of encrypting and second stream of encrypting.
According to illustrative execution modes more of the present invention, output signal can comprise vision signal, for example the HDTV (High-Definition Television) signal.
Some illustrative execution modes comprise a kind of wireless communication system, and this wireless communication system comprises source module, and its generation waits to be transferred to the signal of destination module; And transmitting set, it produces the wirelessly transmitting data corresponding to the encryption of this signal.These transmission data can comprise at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
According to illustrative execution modes more of the present invention, source module can comprise video source, and signal can comprise vision signal.
According to illustrative execution modes more of the present invention, system can comprise receiver, is output signal to receive the wirelessly transmitting data of encrypting and will transmit data decryption.
Illustrative execution modes more of the present invention comprise a kind of method of encrypted wireless communication, and this method comprises the wirelessly transmitting data of transmission corresponding to the encryption of input signal.These transmission data can comprise at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
Illustrative execution modes more of the present invention comprise a kind of method of encrypted wireless communication, and this method comprises the wirelessly transmitting data of the encryption that receives the expression input signal; And will transmit data decryption and be output signal corresponding to the deciphering of input signal.These transmission data can comprise at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
The accompanying drawing summary
Explanation is simply clear for example, and the element that shows among the figure is not necessarily drawn in proportion.For example, clear can exaggerate some size of component for what express with respect to other element.And, but in the drawings repeat reference numerals to indicate corresponding or similar element.In addition, some pieces of describing in the accompanying drawing can be combined into individual feature.List accompanying drawing below.
Fig. 1 is the indicative icon according to the wireless communication system of illustrative execution modes more of the present invention;
Fig. 2 is the indicative icon according to the transmitting set of illustrative execution modes more of the present invention;
Fig. 3 is the indicative icon according to the sign map scheme of illustrative execution modes more of the present invention.
Fig. 4 is the indicative icon according to the wireless receiver of illustrative execution modes more of the present invention;
Fig. 5 is the indicative flowchart diagram according to the method for the synchronous crypto-operation information of illustrative execution modes more of the present invention; And
Fig. 6 is the indicative flowchart diagram according to the method for the wirelessly transmitting data of the generation encryption of illustrative execution modes more of the present invention.
Describe in detail
In the detailed below description,, many concrete details have been illustrated for the thorough understanding of some embodiments of the present invention is provided.Yet those of ordinary skills should understand and put into practice that embodiments of the present invention can be implemented and without these concrete details.In other situation, do not describe well-known method, program, assembly, unit and/or circuit in detail, so that not fuzzy the discussion.
Unless additionally clearly stipulate, otherwise as be apparent that according to following discussion, should understand and run through whole specification discussion use for example " processing ", " calculate (computing) ", " calculate (calculating) ", " determine " or similarly term refer to computer or computing system or the similarly action and/or the processing of electronic computing device, these computers or computing system or similarly electronic computing device with the physics that is expressed as in the register of computing system and/or the memory, the data processing of amount of electrons and/or be transformed to the memory of computing system for example, register or other this information stores, other data that are expressed as physical quantity similarly in transmission or the display device.In addition, term " a plurality of (plurality) " can run through whole specification to be used, to describe two or more assemblies, equipment, element, parameter and analog.
Should be understood that some embodiments of the present invention can be used in the various application.Though embodiments of the present invention are not limited to this aspect, but the one or more vision signal that wireless transmission is encrypted between video source and video destination, for example HDTV (High-Definition Television) (HDTV) signals of being used in method disclosed herein, equipment and/or the system.In other embodiments, method disclosed herein, equipment and/or system can be used to, for example any other appropriate signals of transmission between any suitable source and/or destination.
With reference now to Fig. 1,, according to illustrative execution mode major electrical components more of the present invention wireless communication system 100.
According to illustrative execution modes more of the present invention, system 100 can comprise transmitting set 106, with the wirelessly transmitting data 112 of transmission based on the encryption of the input signal 104 that receives from source module 102.For example, transmitter 106 can produce the wirelessly transmitting data of encryption, and it comprises at least the first and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively, describes as following.Source module 102 can comprise that any appropriate software and/or hardware to produce signal 104, for example, describes as following.
According to illustrative execution modes more of the present invention, the transmission data 112 of encryption can comprise the symbol of a plurality of streams of encrypting according to a plurality of encipherment schemes, and are as described in detail later.
According to illustrative execution modes more of the present invention, the transmission data 112 of encryption can comprise the symbol of first and second streams of encrypting according to first and second encipherment schemes, and are for example, as described in detail later.In an example, first and second streams can comprise the symbol of first and second various constellations respectively.For example, first and second streams can comprise the symbol of thick (coarse) constellation and thin (fine) constellation respectively, for example, describe as following.
According to illustrative execution modes more of the present invention, transmitter 106 can comprise encryption equipment 114, with according to a plurality of encipherment schemes, by encrypting a plurality of streams separately, for example flows 136 and 138, produces the stream of a plurality of encryptions, for example the stream 116 and 118 of Jia Miing.
According to illustrative execution modes more of the present invention, the stream 116 of encryption and 118 can comprise the symbol of two kinds of constellation types separately.For example the stream 116 of Jia Miing can comprise the symbol of first constellation, for example thin constellation; And the stream of encrypting 118 can comprise the symbol of second constellation, and for example thick constellation is as described in detail later.
According to illustrative execution modes more of the present invention, stream 136 and 138 can be represented at least a portion of input signal 104.For example, transmitter 106 can comprise mapper 140, and with for example will be corresponding to the one or more values of signal 104 according to first and second constellations, for example conversion coefficient be mapped to stream 136 and 138.In an example, stream 136 can comprise the symbol of first constellation, and flows 138 symbols that can comprise second constellation, for example, describes as following.
According to illustrative execution modes more of the present invention, transmitter 106 can comprise at least one antenna, comprises the transmission data 112 of encryption of symbol of the stream of a plurality of encryptions with transmission.Transmitter 106 can be carried out any suitable transmission method and/or be configured to transmission transmission data 112.Though embodiments of the present invention are not limited to this aspect, in illustrative execution modes more of the present invention, transmitter 106 can produce transmission data 112 according to Orthodoxy Frequency Division Multiplex (OFDM) transmission plan.According to other execution mode, transmitter 106 can produce transmission data 112 according to any other suitable transmission plan.
According to illustrative execution modes more of the present invention, system 100 can also comprise wireless receiver 124, and wireless receiver 124 has at least one antenna 120 to receive the transmission data 112 of encrypting.But the transmission data 112 of receiver 124 decrypt encrypted, and produce output signal 132, for example corresponding to signal 104.Can provide signal 132 to destination module 134, destination module 134 can comprise any appropriate software and/or hardware processing signals 132 in any suitable manner, for example, describes as following.
According to illustrative execution modes more of the present invention, receiver 124 can comprise decipher 126, being the stream of a plurality of deciphering separately corresponding to the stream deciphering of the encryption of a plurality of receptions of transmission data 112.For example, decipher 126 can for example, be described as following the stream of deciphering respectively corresponding to the stream 128 and 130 of the encryption of transmitting data 112 to deciphering 142 and 144 in detail with reference to figure 4.In an example, stream 128 can comprise the symbol of first constellation, and flows 130 symbols that can comprise second constellation, for example, describes as following.
Though embodiments of the present invention are not limited to this aspect, in some illustrative execution modes, signal 104 can comprise the vision signal with any suitable video format.In an example, signal 104 can comprise the HDTV vision signal, for example, and unpressed HDTV signal, for example, with digital visual interface (DVI) form, high-definition media interface (HDMI) form, or any other suitable video format.According to these execution modes, source module 102 can comprise any suitable video source, for example set-top box, computer, game console, video tape recorder (VCR), digital video disk (DVD), and similar devices.Destination module 134 can comprise, for example display or screen, for example, flat-panel monitor, LCD (LCD), plasma display, television set, and similar devices.Therefore, transmission data 112 can comprise, HDTV video transmission data for example, and it can comprise for example modulator-demodulator-frame (modem-frame), and it for example is included in 2400 OFDM frames, and every OFDM frame comprises for example 128 symbols.In other embodiments, signal 104 can comprise any other appropriate signals, and/or source 102 and/or destination 134 can comprise any other module.In an example, signal 104 can comprise audio frequency, voice, control and/or data-signal, for example, describes as following.
Though embodiments of the present invention are not limited to this aspect, but the type that can be used as the antenna of antenna 108 and/or 120 can include but not limited to, built-in aerial, dipole antenna, omnidirectional antenna, unipole antenna, end feedback antenna (end fed antenna), circular polarized antenna, microstrip antenna, diversity antenna and similar antenna.
With reference now to Fig. 2,, according to illustrative execution mode major electrical components more of the present invention transmitting set 200.Though embodiments of the present invention are not limited to this aspect, according to illustrative execution modes more of the present invention, transmitter 200 can be carried out the function of transmitter 106 (Fig. 1).
According to illustrative execution modes more of the present invention, transmitter 200 can comprise encryption equipment 222, encryption equipment 222 is according to a plurality of encipherment schemes, by encrypting a plurality of streams separately, for example comprise stream 210,212,214 and/or 216, produce the stream of a plurality of encryptions, for example comprise stream 220,224,226 and/or 228, for example, as described in detail later.
Though embodiments of the present invention are not limited to this aspect, according to illustrative execution modes more of the present invention, encryption equipment 222 can be carried out the function of encryption equipment 114 (Fig. 1).
According to illustrative execution modes more of the present invention, encryption equipment 222 can comprise that a plurality of encrypting modules are to carry out a plurality of encipherment schemes respectively.Encryption equipment 222 can comprise, for example carries out first encrypting module 218 of first encipherment scheme and second encrypting module 236 of execution second encipherment scheme.For example, encrypting module 218 can use first encipherment scheme will flow 210 streams 220 that are encrypted as encryption; And encrypting module 236 can use second encipherment scheme will flow 212,214 and/or 216 streams 224,226 and/or 228 that are encrypted as encryption respectively.
Though embodiments of the present invention are not limited to this aspect, according to illustrative execution modes more of the present invention, stream 210 and 212 can comprise the symbol of the first and second transmission constellations respectively, and is for example, as described in detail later.According to these execution modes, the stream 220 of encryption can comprise the symbol of the encryption of first constellation of encrypting according to first encipherment scheme, and the stream of encrypting 224 can comprise the stream of the encryption of second constellation of encrypting according to second encipherment scheme.
Though embodiments of the present invention are not limited to this aspect, according to illustrative execution modes more of the present invention, stream 210 and 212 can comprise the symbol of representing incoming video signal 204.For example, the stream 210 thin constellation symbol that can comprise corresponding to signal 204, and flow the 212 thick constellation symbol that can comprise corresponding to symbol 204, describe as following.
According to illustrative execution modes more of the present invention, transmitter 200 can also comprise coefficient generator 202, to produce a plurality of conversion coefficients 206 corresponding to vision signal 204.In an example, coefficient generator 202 can be by using decorrelation (de-correlating) conversion to signal 204, for example discrete cosine transform (DCT), produce coefficient 206, for example, as the U.S. Patent application of submitting on October 20th, 2,006 11/551,641, and the U.S. Patent Application Publication US 2007-0098063 (" ' 641 application ") that announces on May 3rd, 2007, exercise question is to describe in " Apparatus and methodfor uncompressed; wireless transmission of video ", incorporates its full content here by reference into.For example, coefficient generator 202 can comprise the converter unit (not shown), so that the pixel of expression signal 204, the component data (component data) that form is Y-Cr-Cb are carried out the decorrelation conversion, for example, as in ' 641 applications, describing.Coefficient generator 202 can randomly comprise the color converter (not shown), is converted to component data with the color component with signal 204, for example, and as in ' 641 applications, describing.
According to illustrative execution modes more of the present invention, transmitter 200 can also comprise mapper 208, conversion coefficient 206 is mapped to stream 210 and 212, for example, as in 641 applications, describing.In an example, mapper 208 can be mapped to stream 210 and 212 with the highest significant position (MSB) and the least significant bit (LSB) of coefficient 206 based on any suitable mapping criterion.
According to illustrative execution modes more of the present invention, stream 210 can comprise the value of thin constellation symbol, and flows 212 values that can comprise thick constellation symbol, for example, and as in ' 641 applications, describing.For example mapper 208 can be mapped to MSB stream 212, and wherein MSB represents the quantized value of first group of one or more coefficient 206, for example comprises one or more low frequency coefficients.Mapper 208 can be mapped to stream with LSB, and wherein LSB represents the quantization error of first group of coefficient and/or the value of second group of one or more coefficient 206, for example comprises high frequency coefficient, as describing in ' 641 applications.In an example, represent coefficient 206 by 11 place values.According to this example, mapper 208 can be mapped to three MSB of each coefficient in a plurality of low frequency coefficients the thick constellation symbol of stream 212 separately; And the thin constellation symbol that eight LSB of each coefficient in a plurality of low frequency coefficients is mapped to stream 210 together with the value of a plurality of high frequency coefficients.Stream 210 thin constellation symbol can have real part (realcomponent) and imaginary part (imaginary component), and each represents the LSB part of the coefficient in the coefficient 206 for example.The a plurality of thick constellation symbol of stream 212 can be represented the MSB part of for example a plurality of coefficients 206 respectively.
According to illustrative execution modes more of the present invention, stream 214 and 216 can comprise any appropriate signals, information and/or data.In an example, stream 214 can comprise audio signal, and this audio signal can for example receive from the audio coder (not shown).In another example, stream 216 can comprise control signal, and this control signal can for example receive from modulator-demodulator controller (not shown).According to these examples, encrypting module 236 can come the audio signal of encryption stream 214 and/or flow 216 control signal according to second encipherment scheme, comprise with generation encryption audio signal stream 226 and comprise the stream 228 of the control signal of encryption.
According to illustrative execution modes more of the present invention, transmitter 238 can also comprise transmission (Tx) module 238, to comprise the wirelessly transmitting data of the encryption of stream 220,224,226 and/or 228 via the wireless link transmission by at least one antenna 240.Transport module 238 can comprise any suitable wireless transport module, for example, can transmit the transport module of two kinds of different constellation symbol, and wherein two kinds of different constellation symbol for example flow 220 the thin constellation symbol and the thick constellation symbol of stream 224.For example, Tx module 238 can comprise framer (framer) 239, to produce the OFDM frame, this OFDM frame comprises the thin constellation symbol of stream 220, the thick constellation symbol of stream 224, the audio signal of stream 226, control signal and/or any other signal of stream 228, for example, pilot signal, timing signal, frequency-tracking signal and/or channel tracking signal, for example, as in ' 641 applications, describing.
According to illustrative execution modes more of the present invention, encrypting module 218 and 236 can use one or more encrypted codes 232 to come encryption stream 210,212,214 and/or 216.For example, encryption equipment 222 can comprise that at least one encrypted code generator (ECG) 230 produces encrypted code 232, for example, as is described below.
According to illustrative execution modes more of the present invention, encrypted code 232 can comprise any suitable at random or pseudorandom value, for example represent by bit sequence.In an example, according to any suitable block cipher technology, method or scheme, for example by data encryption standard (DES), Advanced Encryption Standard (AES) and similar standard definition, ECG 230 can produce encrypted code 232.
According to illustrative execution modes more of the present invention, ECG 230 can produce the synchronous encrypted code of carrying out with the receiver (" receiver of expection ") of the transmission data of being transmitted by expection receiver/transmitter 200 232 of encrypted code, for example, describe in detail with reference to figure 4 and/or Fig. 5 as following.
According to illustrative execution modes more of the present invention, ECG 230 can produce encrypted code 232 based on a plurality of internal keys 250, unit key (unit key) 252 and initial value 234.Key 250 and 242 and initial value 234 can comprise any suitable value, for example value of representing by bit sequence.In an example, the form that ECG 230 can form is preserved internal key 250.
According to illustrative execution modes more of the present invention, the value of unit key 252 can be mated the value of the unit key of being carried out by the receiver of expection, for example, describes in detail with reference to figure 4 and/or Fig. 5 as following.For example, transmitter 200 can use any suitable cipher key exchange mechanism to make the value of unit key 252 consistent with the receiver of expection, for example according to Rivest-Shamir-Adleman (RSA) public key cryptography, Diffie-Hellman IKE, and similar mechanism.
According to illustrative execution modes more of the present invention, EGC 230 can produce encrypted code 232 by using encryption key by the combination results of the internal key of selecting in unit key 252 and the internal key 252 to come initial value 234 encrypted.Encrypted code 232 can be used as input and feeds back to ECG 230, makes that the encrypted code before using produces other code 232, for example replaces initial value 234.ECG 230 can select selecteed internal key based on any suitable key selection criterion.For example, ECG 230 can reselect internal key behind the frame of predetermined quantity, describe as following.
Though it is above with reference to encryption equipment, for example encryption equipment 222, illustrative execution modes more of the present invention have been described, wherein this encryption equipment comprises that generation will be provided for the ECG of the encrypted code of a plurality of encrypting modules, described encrypting module is encrypting module 218 and 236 for example, described encrypted code is encrypted code 232 for example, but in other execution mode of the present invention, encryption equipment can comprise any other suitable configuration.For example, encryption equipment can comprise a plurality of ECG, to produce the encrypted code of a plurality of encrypting modules.In an example, at least the one ECG and the 2nd ECG can produce at least the first fen other a plurality of encrypted code and second fen other a plurality of encrypted code that will be provided for encrypting module.
According to illustrative execution modes more of the present invention, encrypting module 218 can be carried out first encipherment scheme, for example with the thin constellation symbol of encryption stream 210, and encrypting module 236 can be carried out second encipherment scheme different with first encipherment scheme, for example, as described in detail later with the thick constellation symbol of encryption stream 212.
According to illustrative execution modes more of the present invention, the encipherment scheme of being carried out with encryption stream 212,214 and/or 216 by encrypting module 236 for example can comprise, uses encrypted code 232 convection current 212,214 and/or 216 actuating logic computings.In an example, encrypting module 236 can encrypted code 232 and flow 212,214 and/or 216 each between the actuating logic Boolean operator, for example XOR (XOR) computing.
According to illustrative execution modes more of the present invention, the encipherment scheme of being carried out with encryption stream 210 by encrypting module 218 for example can comprise, carries out and confuses operation (scrambling operation) to confuse the order that flows 210 symbol.As described above, the thin constellation symbol of stream 210 can comprise the symbol of the OFDM scheme with real part and imaginary part.As shown in Figure 3, the sign map scheme of OFDM frame 310 can comprise a plurality of constellation symbol, and these constellation symbol have the real part and the imaginary part of a plurality of complex values.For example, sign map scheme 310 can comprise symbol 320, for example comprises having imaginary part 330-Ik and the real part 330-Q that is respectively first complex value kSymbol 320-k; And have the imaginary part 330-I that is respectively second complex value 1With real part 230-Q 1320-1.Some symbols of scheme 310 can comprise the thin constellation symbol of stream 210, are for example represented by the real part and the imaginary part of symbol 320.For example by symbol is used at random or pseudo-random permutation, encrypting module 218 can confuse thin constellation symbol.For example, encrypting module 218 can be in first order with the piece write memory or the buffer of the symbol 320 of predetermined quantity, and read these pieces according to for example different second orders with first order.For example, can determine first order and second order according to encrypted code 232.In some illustrative execution modes, encrypting module 218 can be carried out the arrangement of thin constellation symbol between continuous frame, and for example symbol can send in the frame before or after the frame that comprises this symbol at first (" primitive frame ").
According to illustrative execution modes more of the present invention, the encipherment scheme of being carried out with encryption stream 210 by encrypting module 218 for example can comprise, one or more in the thin constellation symbol of counter-rotating (invert).For example, according to for example encrypted code 232, the real part of symbol 320 or/and imaginary part can be multiplied by-1 or+1.
According to illustrative execution modes more of the present invention, the encipherment scheme of being carried out with encryption stream 210 by encrypting module 218 for example can comprise, changes phase place corresponding to the complex value of thin constellation symbol based on encrypted code 232.For example, the complex value of symbol 320 can be multiplied by e J α, wherein the value of phase place α can be determined based on encrypted code 232.
According to illustrative execution modes more of the present invention, the encipherment scheme of being carried out with encryption stream 210 by encrypting module 218 for example can comprise, stream 210 thin constellation symbol and unit matrix multiplied each other, and wherein the value of matrix unit (cell) can be based on encrypted code 232.For example encrypting module 218 can be used the Hadamard matrix that comprises based on the value of encrypted code 232.For example encrypting module 218 can determine which unit of Hadamard matrix should have value " 1 ", and which unit should have value " 1 " based on encrypted code 232.
According to illustrative execution modes more of the present invention, transmitter 200 can transmit the enciphered message corresponding to encrypted code 232 as the part of wirelessly transmitting data.For example ECG 230 can provide the enciphered message 269 relevant with encrypted code 232 to transport module 238.Enciphered message 269 can comprise one or more value so that the receiver of expection can be synchronous with the decrypted code and the encrypted code 232 that are used for deciphering wirelessly transmitting data, for example, describes as following.In an example, enciphered message 269 can comprise initial value side-play amount (IVO), cipher key index and cipher key index side-play amount, for example, describes as following.
According to illustrative execution modes more of the present invention, ECG 230 can use different initial value 234, for example is used to encrypt different frame of video.For example, according to the value of IVO, can increase progressively initial value about initial value before.ECG 230 can select the selecteed internal key of internal key 250 for example based on the value of cipher key index.Can behind the frame of the some that the cipher key index side-play amount defines, carry out selection to internal key.Transport module 238 can comprise that enciphered message 269 is used as the part of the one or more frames of wirelessly transmitting data.For example, framer 239 can comprise that information 269 is used as the part of the frame head of one or more frames, for example the part of the frame head of each frame in fact.
According to illustrative execution modes more of the present invention, the encipherment scheme of being carried out with encryption stream 210 by encrypting module 218 can comprise any other suitable encipherment scheme.For example, encipherment scheme can comprise two or more combinations of encipherment scheme described above.
Above with reference to encryption equipment, for example encryption equipment 222, illustrative execution modes more of the present invention have been described, described encryption equipment comprises first encrypting module and second encrypting module, encrypting module 218 and 236 for example, to encrypt first and second first-class and second streams of the signal of types respectively, for example flow 210 and 212, described first and second the signal for example signal and the signals of constellation symbol slightly of thin constellation symbol of types respectively.Yet in other execution mode of the present invention, encryption equipment can comprise that any other suitable being configured to of a plurality of encrypting modules encrypts a plurality of streams.For example, encryption equipment can comprise carries out first encrypting module that a word is encrypted (one-bit word encryption) to thin constellation symbol, and thick constellation symbol is carried out second encrypting module that two words are encrypted (two-bit word encryption).
With reference now to Fig. 4,, according to illustrative execution mode major electrical components more of the present invention wireless receiver 400.Though embodiments of the present invention are not limited to this aspect, according to some illustrative execution modes, receiver 400 can be carried out the function of receiver 124 (Fig. 1).
According to illustrative execution modes more of the present invention, receiver 400 can comprise demodulator 406, by a plurality of antennas, for example comprises at least one reception antenna 402, the wireless signal of reception with demodulation.The signal that is received can comprise, for example, and the signal of expression OFDM symbol, the OFDM that for example encrypts transmission data, for example the transmission data of the encryption that produces by transmitter 200 (Fig. 2).For example, the signal that is received can comprise the symbol of encrypting according to above a plurality of encipherment schemes of describing with reference to figure 2.
According to illustrative execution modes more of the present invention, demodulator 406 can be demodulated into a plurality of streams with the signal that receives, for example, and as in ' 641 applications, describing.For example demodulator 406 can be demodulated into the symbol that comprises the first kind with the signal that receives, and for example first-class 410 of thin constellation signal; With the symbol that comprises second type, for example second of thick constellation symbol flows 420.Demodulator 406 can randomly be demodulated into one or more other streams with the signal that receives, and for example, comprises the stream 413 and/or 415 of any appropriate signals, information and/or data.In an example, stream 413 can comprise, for example corresponding to the audio signal of the encryption of the audio signal of stream 226 (Fig. 2); And/or flow 415 and can comprise, for example corresponding to the control signal of the encryption of the control signal of stream 228 (Fig. 2).
According to illustrative execution modes more of the present invention, demodulator 406 can also extract enciphered message 408 from the signal that receives, and enciphered message 408 is corresponding to the encrypted code that is used for encryption stream 410 and 412.Enciphered message 408 can be corresponding to, enciphered message 269 (Fig. 2) for example.For example, enciphered message 408 can comprise IVO, cipher key index and cipher key index side-play amount.In an example, demodulator 406 can be from the frame head of the transmission data that receive, for example from extracting enciphered message 408 each frame head in fact.
According to illustrative execution modes more of the present invention, receiver 400 can also comprise decipher 414, with by deciphering a plurality of streams (" stream of encryption ") that produce by the signal that receives respectively, for example flow 410,412,413 and/or 415, produce the stream of a plurality of deciphering, for example flow 430,432,433 and/or 435, as described in detail later.Stream 433 for example can comprise that the audio signal of this deciphering can be provided for for example suitable audio-frequency module (not shown) corresponding to the audio signal of the deciphering of audio signal 214 (Fig. 2).Stream 435 for example can comprise that the control signal of this deciphering can be provided for for example modulator-demodulator controller (not shown) corresponding to the control signal of the deciphering of control signal 216 (Fig. 2).
Though embodiments of the present invention are not limited to this aspect, according to illustrative execution modes more of the present invention, decipher 414 can be carried out the function of decipher 126 (Fig. 1).
According to illustrative execution modes more of the present invention, decipher 414 can comprise a plurality of deciphering modules, to decipher a plurality of streams based on a plurality of decrypt schemes.A plurality of decrypt schemes can be corresponding to a plurality of encipherment schemes that are performed with the transmission data of produce encrypting, for example, more than first encipherment scheme and second encipherment scheme described with reference to figure 2.Decipher 414 can comprise, for example first deciphering module 418 and second deciphering module 420, first deciphering module 418 uses first decrypt scheme will flow 410 deciphering will flow 412,413 and/or 415 streams of deciphering respectively to deciphering 432,433 and/or 435 for stream 430, the second deciphering modules 420 uses second decrypt scheme of deciphering.
According to illustrative execution modes more of the present invention, deciphering module 418 and 420 can use one or more public decrypted codes 422 to decipher stream 410,412,413 and/or 415.For example, decipher 414 can comprise at least one decrypted code generator (DCG) 424, and is to produce decrypted code 422, for example, as described in detail later.
According to illustrative execution modes more of the present invention, decrypted code 422 can comprise any suitable at random or pseudorandom value, for example value of representing by bit sequence.In an example, DCG 424 can produce decrypted code 422 according to any suitable block cipher technology, method or the scheme of for example DES, AES and similar standard definition.
According to illustrative execution modes more of the present invention, DCG 424 can produce and for example be carried out to produce the synchronous decrypted code 422 of encrypted code of the transmission data of encrypting by transmitter 200 (Fig. 2), for example, describes in detail with reference to figure 5 as following.
According to illustrative execution modes more of the present invention, DCG 424 can produce the decrypted code 422 based on a plurality of internal keys 426, unit key 428 and initial value 416. Key 426 and 428 and initial value 416 can comprise any suitable value, for example value of representing by bit sequence.In an example, the form that DCG 424 can form is preserved internal key 426.Internal key 426 can be identical with for example internal key 250 (Fig. 2).
According to illustrative execution modes more of the present invention, the value of unit key 428 can be mated with the value of the unit key of carrying out for the transmission data that produce encryption.For example receiver 400 can use any suitable cipher key exchange mechanism, for example, make the value of unit key 428 consistent with the unit key 250 (Fig. 2) of transmitter 200 (Fig. 2) according to RSA public key cryptography, Diffie-Hellman IKE and similar mechanism.
According to illustrative execution modes more of the present invention, DCG 424 can use the encryption key by the combination results of the internal key of the selection in unit key 428 and the internal key 426, initial value 416 is encrypted and is produced encrypted code 422.Decrypted code 422 can be used as input and feeds back to DCG424, makes that the decrypted code before can using produces other code 422, for example replaces initial value 416.DCG 424 can select selecteed internal key based on any suitable key selection criterion.For example, DCG 424 can reselect internal key after the frame of predetermined quantity, describe as following.At an example, DCG 424 can reselect internal key based on frame counter 429, and frame counter 429 can for example, be described with reference to figure 5 as following from the value countdown corresponding to the cipher key index side-play amount.
Though it is above with reference to decipher, for example decipher 414, illustrative execution modes more of the present invention have been described, this decipher comprises that DCG produces with decrypted code, for example decrypted code 422, and this decrypted code is provided for a plurality of deciphering modules, for example deciphering module 418 and 420, but in other execution mode of the present invention, decipher can comprise any other suitable configuration.For example, decipher can comprise that a plurality of DCG are to produce the decrypted code of a plurality of deciphering modules.In an example, at least the one DCG and the 2nd DCG can produce at least the first and second fens other a plurality of decrypted codes that will be provided for deciphering module.
According to illustrative execution modes more of the present invention, deciphering module 418 can be carried out first decrypt scheme, for example with deciphering stream 410, and deciphering module 420 can be carried out second decrypt scheme different with first decrypt scheme, for example with deciphering stream 412,413 and/or 415, for example, as described in detail later.
According to illustrative execution modes more of the present invention, the decrypt scheme of being carried out with deciphering stream 412,413 and/or 415 by deciphering module 420 can comprise, for example, uses decrypted code 422 convection current 412,413 and/or 415 actuating logic computings.Logical operation can be corresponding to, for example logical operation of being carried out by encrypting module 236 (Fig. 2).In an example, deciphering module 420 can decrypted code 422 and flow 412,413 and/or 415 each between the actuating logic Boolean operator, for example XOR (XOR) computing.
According to illustrative execution modes more of the present invention, the decrypt scheme of being carried out with deciphering stream 410 by deciphering module 418 for example can comprise, uses decrypted code 422 convection current 410 to carry out decrypt operation.Decrypt operation can be corresponding to, the encipherment scheme of carrying out for the symbol of encryption stream 410 for example, the encipherment scheme carried out of encrypting module 218 (Fig. 2) for example with the thin constellation symbol of encryption stream 210 (Fig. 2), as described above.
According to illustrative execution modes more of the present invention, receiver 400 can also comprise de-mapping device (demapper) 434 with will flow 430 and 432 separate be mapped to output 436.For example, de-mapping device 434 can be rebuild conversion coefficient from the thick constellation symbol that flows 430 thin constellation symbol and stream 432; Carry out inverse transformation to rebuild for example video component data of Y-Cr-Cb form; And/or the video component data are converted to color component data, RGB data for example are as describing in ' 641 applications.Therefore, for example,, then export 436 vision signals that can comprise corresponding to incoming video signal 204 (Fig. 2) if the transmits data packets that receiver 400 receives is drawn together the transmission data of transmitter 200 (Fig. 2) transmission.
With reference now to Fig. 5,, according to illustrative execution modes more of the present invention, major electrical components the method for synchronous crypto-operation information.Though embodiments of the present invention are not limited to this aspect, but according to some illustrative execution modes, the method of Fig. 5 can be carried out by the receiver of the transmitter of for example transmitter 200 (Fig. 2) and for example receiver 400 (Fig. 4), to carry out synchronously between the employed one or more encryption keys of transmitter encrypted transmission data and/or value and receiver deciphering transmission employed one or more encryption keys of data and/or value.For example, the one or more operations of the method for Fig. 5 can be performed, between the DCG of the ECG of for example ECG230 (Fig. 2) and for example DCG 424 (Fig. 4), carrying out synchronously, make DCG and ECG produce the decrypted code with the synchronous for example decrypted code 422 (Fig. 4) of the encrypted code of for example encrypted code 232 (Fig. 2).
As indicating at piece 510, this method can comprise that the cell value (unit value) that ECG is set is the value that equates with the cell value of DCG.Cell value is set can be comprised, for example uses any suitable cipher key exchange mechanism, for example, and according to RSA public key cryptography, Diffie-Hellman IKE and similar mechanism.
As indicating at piece 520, this method can also comprise from the transmission extracting data enciphered message that receives.Enciphered message can be extracted from the frame head that for example receiver receives, and for example, describes with reference to figure 4 as above.Enciphered message can comprise that for example IVO, cipher key index and cipher key index offset value are described with reference to figure 2 as above.For example, enciphered message can comprise IVO, cipher key index and the cipher key index offset value of the frame that is used to encrypt reception.
As indicating at piece 520, this method can comprise initialization DCG.For example, available initial value, cipher key index and unit key initialization DCG.For example available cell key 428 (Fig. 4), initial value 416 (Fig. 4) and cipher key index initialization DCG424 (Fig. 4), as described above.Initialization DCG can comprise also that for example the initialization frame counter is the value of cipher key index side-play amount.For example, DCG424 (Fig. 4) can be according to cipher key index side-play amount initialization frame counter 429 (Fig. 4) of enciphered message 408 (Fig. 4).
As indicating at piece 530, this method can also comprise, for example when receiving every frame, makes the value of initial value increase from the IVO of the frame extraction of reception.
As in piece 535 indication, this method can also comprise, for example when receiving every frame, makes frame counter for example reduce one.
As indicating at piece 540, this method can comprise determining whether frame counter reaches predetermined threshold value, and is for example zero.
As in piece 550 indication, this method for example can comprise, if frame counter has reached threshold value, then make cipher key index move forward (advance) and frame counter is reset to the cipher key index value.
As indicating at piece 560, this method can comprise also that the initial value with cipher key index and DCG compares with cipher key index of extracting from the frame that receives and initial value.
As in piece 580 indication, this method can also comprise, if for example the cipher key index of DCG and initial value do not match with cipher key index and initial value from the frame extraction that receives, then makes error counter increase for example.Error counter can indicate DCG and ECG not to use the quantity of the frame of synchronous encryption and decryption code.
As indicating at piece 580, this method can comprise determines whether error counter reaches predetermined error threshold.
As indicating at piece 590, this method can comprise that if error counter has reached error threshold, the error counter of then resetting for example is zero, and reinitializes DCG, for example, describes as reference block 510.
With reference now to Fig. 6,, major electrical components the method for wirelessly transmitting data that produce to encrypt.Though embodiments of the present invention are not limited to this aspect, but according to some illustrative execution modes, the one or more operations of the method for Fig. 6 can be by transmitter, for example transmitter 06 (Fig. 1) and/or transmitter 200 (Fig. 2) are carried out, to produce the wirelessly transmitting data of encrypting, for example corresponding to the transmission data 112 (Fig. 1) of input, described input is signal 104 (Fig. 1) and/or 204 (Fig. 2) for example.
As indicating at piece 610, this method can comprise the conversion of for example passing through the Y-Cr-Cb component application decorrelation of incoming video signal, produces the conversion coefficient of expression input, as described above.
As indicating at piece 620, this method can comprise also that the mapping transformation coefficient is to a plurality of symbols streams.For example, but the mapping transformation coefficient arrives the symbols streams and the thin constellation symbol stream of thick at least constellation, as described above.
As in piece 625 indications, according to illustrative execution modes more of the present invention, this method can also comprise uses multiple encipherment scheme to encrypt a plurality of streams.
As indicating at piece 630, this method can comprise according to first encipherment scheme, for example by carrying out the XOR computing, encrypts first symbols streams, and for example thick constellation symbol of described symbol is described with reference to figure 2 as above.
As indicating at piece 640, this method can also comprise uses second encipherment scheme, encrypts second symbols streams, and for example thin constellation symbol of described symbol for example, is described with reference to figure 2 as above.
As indicating at piece 650, this method also can comprise the wirelessly transmitting data of transmission corresponding to the encryption of input.These transmission data can comprise the stream of a plurality of encryptions of encrypting according to multiple encipherment scheme.For example, the transmission data of encryption can comprise at least the first and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively, for example, and as described above.
Be applicable to concrete application or according to concrete designing requirement, embodiments of the present invention can be realized by any combination of software, hardware or software and/or hardware.Embodiments of the present invention can comprise unit and subelement, and it can be separated from one another or integrally or together partially combined, and known processor special use, multiduty or general or the equipment in field is carried out under can using.Some embodiments of the present invention can comprise buffer, register, storage element and/or memory cell, are used for the storage of interim or long-term data and/or in order to help the operation of embodiment.
Though illustrate and described some feature of the present invention here, to those skilled in the art many changes, replacement, variation and the equivalent form of value can take place.Therefore should understand the claim of enclosing is intended to cover all such changes and the variation that drops within the true spirit essence of the present invention.

Claims (42)

1. transmitting set, described transmitting set produces the wirelessly transmitting data corresponding to the encryption of input signal, and described transmits data packets is drawn together at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
2. transmitter as claimed in claim 1, wherein said first stream of encrypting and second flow point of encrypting do not comprise the symbol of first and second various constellations.
3. transmitter as claimed in claim 2, wherein said first constellation and second constellation comprise thin constellation and thick constellation respectively.
4. transmitter as claimed in claim 1, wherein said first stream of encrypting and second stream of encrypting are represented a plurality of conversion coefficients corresponding to described input signal.
5. transmitter as claimed in claim 1, it comprises encryption equipment, to produce described first stream of encrypting and second stream of encrypting by first symbols streams and second symbols streams of encrypting the described input signal of expression.
6. transmitter as claimed in claim 5, wherein said encryption equipment comprises:
The encrypted code generator, it produces one or more encrypted codes;
First encrypting module, it uses described encrypted code to encrypt described first symbols streams according to described first encipherment scheme; And
Second encrypting module, it uses described encrypted code to encrypt described second symbols streams according to described second encipherment scheme.
7. transmitter as claimed in claim 6, wherein said encrypted code generator produces the described encrypted code corresponding to a plurality of transferring data frames.
8. transmitter as claimed in claim 6, wherein said transmits data packets is drawn together the enciphered message corresponding to described encrypted code.
9. transmitter as claimed in claim 8, wherein said enciphered message comprises one or more encryption keys.
10. transmitter as claimed in claim 5, it comprises:
Coefficient generator, its application transform to described input signal to produce a plurality of conversion coefficients of the described input signal of expression; And
Mapper, it is mapped to described first symbols streams and described second symbols streams with described conversion coefficient.
11. transmitter as claimed in claim 1, wherein said input signal comprises vision signal.
12. transmitter as claimed in claim 11, wherein said vision signal comprises the HDTV (High-Definition Television) signal.
13. wireless receiver, described wireless receiver receive the expression input signal encryption wirelessly transmitting data and be output signal with described transmission data decryption corresponding to described input signal, described transmits data packets is drawn together respectively at least the first symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes and the symbols streams of second encryption.
14. receiver as claimed in claim 13, wherein said first stream of encrypting and described second flow point of encrypting do not comprise the stream of first and second various constellations.
15. receiver as claimed in claim 14, wherein said first constellation and described second constellation comprise thin constellation and thick constellation respectively.
16. receiver as claimed in claim 13, wherein said first stream of encrypting and described second stream of encrypting are represented a plurality of conversion coefficients, and wherein said output signal is based on described a plurality of conversion coefficients.
17. receiver as claimed in claim 13, it comprises decipher, is the symbols streams of first deciphering and the symbols streams of second deciphering with the stream deciphering that described first stream of encrypting and described second is encrypted.
18. receiver as claimed in claim 17, wherein said decipher comprises:
The encrypted code generator, it produces one or more decrypted codes;
First deciphering module, it uses described decrypted code to decipher described first stream of encrypting according to first decrypt scheme corresponding to described first encipherment scheme; And
Second deciphering module, it uses described decrypted code to decipher described second stream of encrypting according to second decrypt scheme corresponding to described second encipherment scheme.
19. receiver as claimed in claim 18, wherein said decrypted code generator produces the described decrypted code corresponding to the transferring data frames of a plurality of receptions.
20. receiver as claimed in claim 18, the transmits data packets of wherein said reception is drawn together enciphered message, and wherein said decrypted code generator produces described decrypted code based on described enciphered message.
21. receiver as claimed in claim 20, wherein said enciphered message comprise the one or more encryption keys that are used to encrypt described first stream of encrypting and second stream of encrypting.
22. receiver as claimed in claim 13, wherein said output signal comprises vision signal.
23. receiver as claimed in claim 22, wherein said vision signal comprises the HDTV (High-Definition Television) signal.
24. a wireless communication system, it comprises:
Source module, its generation waits to be transferred to the signal of destination module; And
Transmitting set, it produces the wirelessly transmitting data corresponding to the encryption of described signal, and described transmits data packets is drawn together at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
25. system as claimed in claim 24, wherein said source module comprises video source, and wherein said signal comprises vision signal.
26. system as claimed in claim 24, it comprises wirelessly transmitting data that receives described encryption and the receiver that is output signal with described transmission data decryption.
27. system as claimed in claim 24, wherein said first stream of encrypting and described second flow point of encrypting do not comprise the symbol of first and second various constellations.
28. system as claimed in claim 24, wherein said first stream of encrypting and described second stream of encrypting are represented a plurality of conversion coefficients corresponding to described signal.
29. the method for an encrypted wireless communication, described method comprises:
Transmission is corresponding to the wirelessly transmitting data of the encryption of input signal, and described transmits data packets is drawn together at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
30. method as claimed in claim 29, wherein said first stream of encrypting and described second flow point of encrypting do not comprise the symbol of first and second various constellations.
31. method as claimed in claim 29, wherein said first stream of encrypting and described second stream of encrypting are represented a plurality of conversion coefficients corresponding to described input signal.
32. method as claimed in claim 29, it comprises first symbols streams and second symbols streams of encrypting the described input signal of expression, to produce described first stream of encrypting and second stream of encrypting.
33. method as claimed in claim 32, wherein said encryption comprises:
Produce one or more encrypted codes;
Use described encrypted code to encrypt described first symbols streams according to described first encipherment scheme; And
Use described encrypted code to encrypt described second symbols streams according to described second encipherment scheme.
34. method as claimed in claim 32, it comprises:
Receive the wirelessly transmitting data of described encryption; And
With described transmission data decryption is output signal corresponding to the deciphering of described input signal.
35. method as claimed in claim 32, wherein said input signal comprises vision signal.
36. the method for an encrypted wireless communication, described method comprises:
Receive the wirelessly transmitting data of the encryption of expression input signal; And
With described transmission data decryption is output signal corresponding to the deciphering of described input signal, and described transmits data packets is drawn together at least the first symbols streams of encrypting and second symbols streams of encrypting of encrypting according at least the first and second different encipherment schemes respectively.
37. method as claimed in claim 36, wherein said first and second flow points of encrypting do not comprise the symbol of first and second various constellations.
38. method as claimed in claim 36, wherein said first and second streams of encrypting are represented a plurality of conversion coefficients, and wherein said output signal is based on described a plurality of conversion coefficients.
39. method as claimed in claim 36, the step of wherein deciphering described transmission data comprise that the stream deciphering that described first stream of encrypting and described second is encrypted is the symbols streams of first deciphering and the symbols streams of second deciphering.
40. method as claimed in claim 39, the step of wherein deciphering described first stream of encrypting and described second stream of encrypting comprises:
Produce one or more decrypted codes;
Use described decrypted code to decipher described first stream of encrypting according to first decrypt scheme corresponding to described first encipherment scheme; And
Use described decrypted code to decipher described second stream of encrypting according to second decrypt scheme corresponding to described second encipherment scheme.
41. method as claimed in claim 40, the step that wherein produces described decrypted code comprises the described decrypted code of generation corresponding to the transferring data frames of a plurality of receptions.
42. method as claimed in claim 36, wherein said output signal comprises vision signal.
CNA200780032198XA 2006-06-30 2007-06-26 Method, device and system of encrypted wireless communication Pending CN101513059A (en)

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