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  1. #1
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    Default BISS Learning Project Part II


    Hi friends , here is some information & knowledge about Basic Interoperable Scrambling System which we call BISS.I try collect details from others about this section and just make a mirror for u my friends.I've only one intend that what I know a thing about satellite , then I'll post,paste,copy it here in RDI.That's why I learn too much from this forum and wanna pay,help again as much as I can.Thanks alot RDI.But plz. just remember this is only for educational purpose only not the way of hacking.


    Best Wishes To All.
    Yan Naing.
    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  2. #2
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    Default Biss Learning Project Part II

    **This is EDUCATIONAL PURPOSE ONLY**
    **This is EDUCATIONAL PURPOSE ONLY**
    **This is EDUCATIONAL PURPOSE ONLY**



    BASIC OF BISS SCRAMBLING

    WHAT'S SCRAMBLING

    • Scrambling is a way to transform transmitted data in order to allow reception only by parties that have a valid descrambling key.

    •An open standard has been defined to allow different manufactures to implement the same scrambling system.


    BISS MODES

    •BISS mode 0 : unscrambled (clear)
    •BISS mode 1 : scrambled with session word (SW)
    •BISS mode E : scrambled with encrypted session word (ESW)

    •The session word is the key that is used in the receiver (IRD) to descramble the transmitted data.

    •Remark that BISS-E uses the same scrambling algorithm as BISS mode 1 but that there is an additional encryption on the session word.


    BISS MODE 1

    •BISS mode 1 uses a 12 digit hexadecimal key as session word.The session word has to be announce to all parties that are allowed to descramble the received data.

    •Example : 123456ABCDEF

    •The session word can easily be compromised,there is no protection when communicating it to the receiver site(s).


    BISS MODE E

    •BISS mode E : scrambled with encrypted session word (ESW)

    •This mode uses the ID (identifier) of the receiver(s) and a session word to calculate an encrypted session word (16 digits hex).

    •There are two possible IDs
    1. buried ID ,
    2. injected ID

    •By encrypting the session word there is an additional protection on the session word.The ESW can be communicated using a non-secure channel since in order to descramble the received signal both the ID and the ESW need to be know.


    Calculation of encrypted session word





    BURIED ID

    •Each receiver (IRD) holds a unique ID (cfr. serial number) that can be used to identify that specific receiver : this is called the burried ID.

    •If you want to do a transmission that is to be receiverd by only one specific receiver, use the buried ID to clculate the encrypted session word.

    INJECTED ID

    •An identifier can be entered (injected) in a receiver (IRD) , this injected ID can be entered in a single or group of IRDs.

    •This allows a BISS-E protected transmission to a group of IRDs.


    RATE ADAPTATION

    •MPEG null packets are stripped from the incoming transport stream.Then the scrambling algorithm is applied to the transport stream.

    •After that, MPEG null packets are multiplexed with the scrambled transport stream (stuffing) to arrive at the desired output rate.

    OPERATION BISS MODE 1

    •Connect the scrambler between the encoder and modulator.

    •Select output interface rate (must be equal or higher than output interface rate of the encoder)

    •Select BISS mode

    •In case of BISS mode 1 with clear session word,enter the 12 digit session word.

    •Communicate the session word to the receive site(s).

    OPERATION BISS MODE E WITH BURIED ID


    •Connect the scrambler between the encoder and modulator.

    •Select output interface rate (must be equal or higher than output interface rate of the encoder)

    •Select BISS mode.

    •In case of BISS mode E with buried ID , get the buried ID of the IRD and use this together with a session word to calculated the encrypted session word (using the DES3 algorithm).

    •Communicate the ESW to the receive site.


    OPERATION BISS MODE E WITH INJECTED ID

    •Connect the scramber between the encoder and modulator.

    •Select output interface rate (must be equal or higher then output interface rate of the encoder)

    •Select BISS mode.

    •In case of BISS mode E with injected ID , get the injected ID of the IRD(s) and use this together with a session word to calculate the encrypted session word (using the DES3 algorithm).

    •Communicate the ESW to the receive site(s).

    SUMMARY

    •BISS mode 1 => session word (SW)

    •BISS mode E => encrypted session word (ESW)

    -sw + injected or buried ID -> ESW

    •Rate adaptation
    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  3. #3
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    Default Biss Learning Project Part II

    - Arab States Broadcasting Union adopts new standard for protecting satellite ad hoc and
    occasional use programming -
    As digital video compression is increasingly adopted by broadcasters for the
    interchange of programs and inserts via satellite, an opportunity has arisen to solve an
    old dilemma. Protecting program content which lands everywhere within the footprint
    of a satellite has always presented a problem, especially when you need to be able to
    exchange feeds with earth stations that may not use the same manufacturer's equipment.
    Traditional conditional access (CA) systems require matching encryption and
    decryption products, and have been prohibitively expensive for ad hoc or occasional use
    operation. Fortunately, this difficult problem has finally been solved with an elegant and
    simple solution. Named the Basic Interoperable Scrambling System (BISS), the new
    scrambling technology enables broadcasters to uplink satellite signals using one
    vendor’s encoding equipment for secure reception by decoding equipment from another
    supplier.
    This simplified, standardized scrambling system is suitable for Digital Satellite News
    Gathering (DSNG), as well as other ad hoc, content origination, or Occasional Use
    Television (OUTV) applications.
    Developed by the European Broadcasting Union (EBU) and a consortium of several
    broadcast hardware manufacturers that included Scientific-Atlanta, BISS has quickly
    gained acceptance. The Arab States Broadcasting Union has already begun including
    BISS as a requirement in its procurement specifications, and other broadcasting unions
    are anticipated to follow suit.


    WHAT IS BISS?


    BISS is a form of interoperable conditional access. It employs the standardized DVB
    common scrambling algorithm to secure the audio and video services, but differs from
    more elaborate CA systems in that it does not use Entitlement Control Messages (ECMs)
    to distribute the decryption information. It is the ECMs and their companion
    Entitlement Management Messages (EMMs) that give each commercial CA system its
    unique character. Without ECMs and EMMs, the BISS can be interoperable, as the
    scrambling mechanism has been standardized by DVB and is supported by almost all
    equipment manufacturers.
    It can be used for international or inter-broadcaster links, where the satellite uplink
    originates with one company’s encoder and the broadcast is received across a wide
    region by many different brands of receivers. In the past much of this type of
    interchange transmission was analog, and the signals were sent in the clear. The
    development and successful testing of BISS in the months leading up to April 2000
    means that in digital there is now a proven means of securing this interchange traffic.
    BISS is not a replacement for conventional CA for securing content as part of a full-time
    distribution service. Conventional CA systems use a constantly changing control word
    (encryption key) as an anti-piracy measure. ECMs are used to update the receivers with
    the new value of the control word, which may change several times a minute. By
    contrast, BISS uses a fixed "session key" for the entire duration of each transmission
    session. This is secure enough for short duration ad hoc program distribution, and a vast
    improvement in security in comparison to broadcasting in-the-clear, and relying on the
    threat of legal actions to protect the content.
    The market for BISS products should emerge rapidly, as the use of MPEG-2/DVB digital
    compression for broadcast interchange continues to become more prevalent. The
    benefits of protecting content using BISS, even for a short transmission time, may well
    become the norm.

    The Development and Testing of BISS

    From the time that the draft standard was finalized by the drafting committee in Geneva
    in early 2000, Scientific-Atlanta's engineers had a few short weeks to prototype the new
    system in its Toronto R&D facility. Samples of scrambled streams were exchanged
    between manufacturers in a frantic rush to verify their independent developments prior
    to the scheduled interoperability tests, conducted in the days leading up to NAB 2000.
    Scientific-Atlanta provided its new PowerVu Plus Originator Encoder and PowerVu Plus
    Professional Receiver, with the prototype BISS modifications, for the tests at EBU’s
    Geneva headquarters. L-band tests were executed using 4:2:2 encoding between every
    possible combination of vendors’ equipment using the BISS specification’s (EBU Tech.
    3290) mode 1 (fixed control word).
    The tests were highly successful, following closely behind the 4:2:0 and 4:2:2 ISOG
    interoperability testing conducted at INTELSAT in Washington, DC in November-
    December 1999, and reaffirmed that interoperability of MPEG-2/DVB satellite
    broadcasts is a reality, and BISS provides a layer of security on top. The PowerVu Plus
    Professional Receiver was one of only two 4:2:2 receiver products tested in Geneva and
    again demonstrated as it had in Washington that it was able to successfully decode
    programming from all the encoders used in the test.
    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  4. #4
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    Default Biss Learning Project Part II

    BISS Comes to Market
    The latest version of the PowerVu Plus Professional Receiver now includes BISS as a
    standard feature along with support for 4:2:2 and 4:2:0 profiles, digital and analog
    outputs, and DVB-ASI transport output. The popular and flexible Originator Encoder
    has a DVB scrambling card available as an option, giving broadcasters a complete BISS
    uplink and downlink solution from Scientific-Atlanta .
    "It is gratifying to see the work of our BISS team come to market so quickly from a
    manufacturer with the reputation of Scientific-Atlanta, " said Louis Cheveau, head of
    transmission technologies at the EBU. It is anticipated that BISS will gain popularity
    outside Europe just as DVB has, and, to that end, the EBU has proposed it for
    standardization through the ITU.
    Applications for BISS
    Using the Originator Encoder as an uplink, the content provider would only need to
    notify its potential receivers of the typical details such as the satellite to be used,
    transponder, and time of transmission, along with the 12-digit BISS scrambling key.
    Then, using the PowerVu Plus Professional Receiver, or other BISS–compatible receivers,
    the desired reception points can acquire the secured signal.
    · INTELSAT has announced that it will roll out a global conversion from analog to
    digital of its Occasional-Use TV (OUTV ) service, starting with the satellites in the
    Indian Ocean Region (IOR). Although not specified by ISOG or INTELSAT as a
    requirement for this conversion process, BISS is an ideal scrambling solution for
    OUTV applications and many operators are expected to choose BISS compatible
    equipment to provide an upgrade path to secured transmissions whenever they
    may be required.
    · In DSNG applications, use of BISS ensures that a news gathering team’s
    exclusive coverage of a compelling story can be protected in real time.
    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  5. #5
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    Default Biss Learning Project Part II

    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  6. #6
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    Default Biss Learning Project Part II

    Example of BISS Scrambling in a professional sat receiver

    The BISS Scrambling Screen

    This screen appears when you select the BISS Scrambling screen in the Settings
    menu. BISS (Basic Interoperable Scrambling Systems) is a scrambling system with
    fixed keys which offers interoperativity between different equipment of transmitters and
    receivers (Specification EBU Tech 3292).



    The screen presents three options: Mode, S (Session Word) and ID (Identifier):
    • "Mode": Use the SEL command to open a pick list with the Mode 1 and Mode-E
    options, which refer to the two operation modes of BISS. If Mode 1 has been
    selected, the option ID of the third line is disabled.
    • "S" : You must enter the key SW (Session Word). The word has 12 hexadecimal
    characters when operating in Mode 1 and 16 characters when operating in Mode-E.
    To write an alphabetical character, enter any digit and next press repeatedly the key
    * or ¯ until the desired character appears (...7, 8, 9, A, B, C...).
    • "ID" : Only is available if Mode-E has been selected in the first option. You must
    enter the ID word with 14 hexadecimal characters.
    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  7. #7
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    Default Biss Learning Project Part II

    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  8. #8
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    Default Biss Learning Project Part II

    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  9. #9
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    Default

    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  10. #10
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    Default

    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  11. #11
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    Default

    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  12. #12
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    Default

    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  13. #13
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    Default Biss Learning Project Part II

    Chapter 1
    Introduction

    1.1. Overview

    The rapid increase in the use of Digital Satellite News Gathering (DSNG) technology has resulted in the availability
    of digital codec equipment from a number of vendors. At the same time, the absence of standard methods
    for the securing and scrambling of DSNG broadcasts has spawned the development of several different proprietary
    security mechanisms.
    The widespread acceptance of DVB standards now makes is possible to propose and provide a security mechanism
    that offers interoperability between the equipment of different DSNG vendors. This would enable broadcasters
    to combine equipment from several vendors, while making systems more future-proof.
    The Basic Interoperable Scrambling System (BISS) is based on the DVB-CSA specification [1], and the use of
    fixed clear keys called Session Words (SWs). BISS specification Mode 1 is used for DSNG.
    BISS specification Mode E (BISS with Encrypted keys – referred to as BISS-E) introduces an additional mechanism
    to accept the insertion of Encrypted Session Words (ESWs) while, at the same time, conserving interoperability.
    This mechanism is backward compatible with BISS specification Mode 1.

    1.2. Nomenclature

    Throughout this document, the following definitions are used:
    » Scrambler relates to the overall mechanisms required to meet the DVB-CSA specification.
    » Session Word relates to the word assigned during a transmission by the Management Centre.
    » Unit relates to a device for which this specification might apply.
    » Management Centre refers to an organization controlling or managing the conditional access system.
    » Decryption function refers to a logical function used to decrypt the Encrypted Session Words, with the
    help of a key.
    » Interoperable function refers to a decryption function that shall be embedded in all units.


    1.3. Notations


    The bits in binary numbers or sequences are numbered from the left, according to engineering notation. Bit 0 is
    on the right and is the least significant one; the bit on the left is the most significant one.
    Here is an example of engineering notation for an n-bit number:
    bn-1bn-2. ... b1b0


    1.4. Security requirements


    The DSNG model requires the direct entry of a Session Word at the transmitter and receiver, to control access to
    the transmission. The sender and receiver(s) of the transmission share the SW, such that only the intended parties
    will receive the transmission, outlined as follows:
    1) The Session Word is entered at the DSNG unit in the field, or at the transmitting earthstation.
    2) The Session Word is entered at the receiving IRDs.
    3) If the Session Words are the same, then the IRDs are able to decrypt the broadcast.
    4) If the Session Words are different, then the broadcast is not received.
    The security requirements for fixed contribution systems are somewhat different to the DSNG model. The secure
    exchange of SWs is fundamental to such systems and is achievable by encrypting them.


    1.5. Modes of Operation


    The Scrambler must be capable of supporting the following three modes of operation:
    » Mode 0: No scrambling.
    » Mode 1: All components are scrambled by a fixed Control Word (CW), derived from a clear SW.
    » Mode E: All components are scrambled by a fixed CW, derived from an Encrypted Session Word
    (ESW).
    The scrambling mechanism, as defined in the DVB-CSA specification, shall be applied at the Transport level
    only.
    A Conditional Access Table (CAT) shall be present in the multiplex for BISS Mode 1 and BISS-E, although the
    table shall be empty as no Entitlement Management Message (EMM) stream will be present.
    Note: A Scrambler that only supports a subset of the defined modes of operation must do so according to an
    imposed hierarchy. A Scrambler providing support for Mode E must also support Modes 0 and 1.


    1.6. Mode 0


    The Scrambler must be capable of disabling the scrambling operation. In this mode, there will be no
    CA_descriptor in the Programme Map Table (PMT) and no Entitlement Control Message (ECM) stream.
    The Transport_Scrambling_Control bits of the Transport Packets will be set to “00”.


    1.7. Mode 1 and Mode E


    The complete specifications for Mode 1 and Mode E are given in Chapter 2 and Chapter 3 respectively.
    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  14. #14
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    Default Biss Learning Project Part II

    Chapter 2
    BISS Mode 1 — functional requirements


    2.1. Overview

    This mode has been designed specifically for DSNG applications, fly-away operations, emergency situations,
    etc. It may also be used as a fall-back solution while using the complete BISS-E system. In Mode 1, a fixed 12-
    character SW is inserted in the scrambler. The 64-bit CW is derived from the SW according to the DVB-CSA
    specification.
    Manual entry of the SW shall be in hexadecimal notation, with the digits entered most-significant-nibble first, i.e.
    from left to right as viewed in hexadecimal notation.
    For example, 0xA13DBC42908F would be entered in the following sequence: A,1,3,D,B,C,4,2,9,0,8,F.
    Remote entry of the SW shall also be provided, although the specification of that interface is beyond the scope of
    this document.
    The Scrambler shall ensure that the SW cannot be changed more than ten times in a 5-minute period and that
    there is a minimum of 10 seconds between changes.
    In this mode there will be a CA_descriptor in the PMT, present at programme level, but no ECM stream. A single
    unique CA_System_ID is assigned to identify BISS.
    The Transport_Scrambling_Control bits of the Transport Packets shall be set to “10”.


    2.2. CA_descriptor


    The CA_descriptor which must be present in the
    PMT to support BISS is defined in Table 1.
    Semantics:
    CA_system_ID: this is a 16-bit field indicating
    the type of CA system applicable for the associated
    ECM streams. The value of this field for
    BISS is 0x2600. See [2].
    CA_PID: this is a 13-bit field indicating the
    Packet Identification Number (PID) of the
    Transport Stream packets that shall contain the
    ECM information. For BISS, no ECM information
    is required, so this field shall contain the
    value 0x1FFF.

    Table 1
    Conditional access descriptor – Mode 1.


    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



  15. #15
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    Default Biss Learning Project Part II


    Chapter 3
    BISS Mode E — functional requirements



    3.1. Clear Session Word


    The unit shall be compliant with BISS Mode 1. It shall support the insertion of a 12-character clear SW through
    the front panel and through a remote control interface. It shall use the SW as specified in Chapter 2 (BISS
    Mode 1).
    The clear SW, once entered via the user interface or remote control port, shall not be readable through any unit
    interface.


    3.2. Encrypted Session Word


    The unit shall support the insertion of ESWs through the front panel and through a remote control interface. The
    definition of the remote control port is outside the scope of this document.
    The ESW is a 16-character number that is transformed by the unit into a 12-character clear SW. The clear SW is
    then used by the unit to decrypt the broadcast according to Chapter 2 (BISS Mode 1).
    Once the ESW has been entered via the front panel or via the remote control interface, it shall be impossible to
    read it back through any unit interface.
    The manual entry of the ESW shall be in hexadecimal form; the 16 digits are entered with the most-significant
    nibble first (i.e. the left-most nibble).
    For example, if the ESW is 0xF76EE249BE01A286, it shall be entered in the following sequence:
    F,7,6,E,E,2,4,9,B,E,0,1,A,2,8 and 6.

    3.3. Decryption scheme

    3.3.1. Overview


    The equipment shall include the following features:
    » An identifier, denoted ID, comprising a 14-character hexadecimal word which shall be injected by the
    user and shall be used as the default. The injected ID is mandatory. Optionally, in addition, the supplier
    may bury an ID. In this case, the user shall actively select the buried ID.
    » A DES decryption function, denoted ƒ( ), as described in Section 3.3.3. Additional functions may be
    supplied but are beyond the scope of this document.
    » A simple post-processing function, denoted P( ), as described in Section 3.3.4.
    The processing of the ESW in the unit to provide the clear SW is illustrated in Fig. 1 and further examples are
    described in Appendix A. The role of the Management Centre in generating the ESW, in accordance with the data Encryption Standard (DES), is indicated in Appendix A but a detailed specification is outside the scope of
    this document.
    The mapping of the ID is a simple expansion from 56 to 64 bits, by adding an odd parity bit after every 7 bits.
    The reduction of the decrypted SW from 64 to 48 bits is obtained by deleting the first and last bit of each byte
    (see the examples given in Appendix A).
    After the application of the post-processing function, P( ), the clear SW is obtained to feed the BISS equipment
    as in Mode 1

    " 李俊明 Born To Help People "

    DM 500s , Pacific 3600 CI , Humax F2 Finder , Angel Box , My Dream Machine , Tatasky , KAON , Topfield 3030 , Yuri YR1Dap , Dynasat 7100 , F1 , Plus and II , Metabox II , 10 , Viva Vs 9000 , SkyBox II , X-Sat 430 , 420 , Bolt N2 , NewB , New Shine Ns 3000 , Victory V 889 , F1 Newshine , New Star , Innovia 3088 CA , Atom 7000 , PBI , Prosat , Dstv 3Q76 , GA 88a , Tatasky , Big Tv , Airtel .



 

 

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