DCI Specs - Digital Cinema Initiatives

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4. Projector SPB designs shall not allow physical access to signals runningbetween the companion SPB and the projector SPB without breaking themarriage, in which case a re-installation shall be required and tampering willbe observed by the authorized installer (see Section 9.5.2.4 SpecificRequirements for Type 2 Secure Processing Blocks).5. The projector SPB shall accept the decrypted streaming image signal fromeither the Image Media Block (IMB) or Link Decryptor Block (LDB) SPB andprocess accordingly.6. The projector SPB shall provide at least a type 2 image signal path andtamper/access protection container. The physical requirements for a type 2SPB are given in Section 9.5.2.4 Specific Requirements for Type 2 SecureProcessing Blocks.7. The projector SPB shall include a secure silicon host device (see Section9.5.2 Robustness and Physical Implementations) to support an identity keypair (private key), and appropriate intelligence for support of the following:• Authentication per implementation options in Section 9.4.3.6.5 SPBSystems Implementation and Standards Options• Electronic marriage and SPB “open” signal• SPB access door opening event detection• Secure silicon device operational status (e.g., keys zeroed, etc.)9.4.3.6.2. Normative Requirements: Link Decryptor Block (LDB)The following requirements are normative where Link Encryption is used:1. As part of the installation (mechanical connection to projector and electricalinitiation), perform electrical and logical marriage with the projector SPB.Electrical connection integrity between the Link Decryptor Block and theprojector SPB shall be monitored 24/7. Should the integrity of the connectionbe broken, log the event and require a re-installation process beforebecoming active again.Breaking of the LDB/projector SPB marriage shall not zero the LDB SPBlong-term identity keys (RSA private keys).2. Perform content link decryption, and pass the decrypted streaming image tothe appropriate circuitry inside the projector SPB.3. Respond to the Security Manager’s (SM’s) initiatives in establishing aTransport Layer Security (TLS) session and Link Decryptor Blockauthentication. Maintain this session until commanded to terminate.4. Link Decryptor Blocks (LDBs) shall not establish security communicationswith more than one SM at a time.5. The LDB shall contain a UTC time reference clock which is battery backedand operative for time stamping log events under powered and un-poweredconditions. The LDB shall communicate time information with the SM usingstandardized Intra-Theater Messaging.6. Respond to SM “status” queries, and other Intra-theater Messages (ITMs)and SM commands as necessary to support SM behavior requirements.DCI Digital Cinema System Specification v.1.2 Page 114
7. Accept and store link decryption keys, and associated parameters, providedby the SM. The LDB shall have the capacity to store at least 16key/parameter sets.8. Purge LD keys upon expiration of the SM designated validity period, SM“purge” command, Link Decryptor Block SPB tamper detection, break ofprojector LDB SPB electrical connection, or change in TLS networkparameters suggestive of an attack or equipment substitution.9. Record security event data for logging under both powered and un-poweredconditions. Assemble logged information into standardized log records perSection 9.4.6.3 Logging Subsystem. If the LDB provides logging support forthe projector SPB via a marriage connection per Section 9.4.3.6.1 Item 3,then the LDB shall provide such logging support 24/7 under both poweredand un-powered conditions.10. Monitor Link Decryptor Block SPB physical security protection integrity 24/7.In the event of intrusion or other tamper detection, terminate all activity, logthe event, and zero all Critical Security Parameters (see Section 9.5.2.6Critical Security Parameters and D-Cinema Security Parameters).9.4.3.6.2.1. Normative Requirements for LD/LE SPB DevicesThe following requirements are normative where a special purpose SPB thatperforms link decryption followed by link encryption is used (see Section 9.4.4.1):1. Within the LD/LE Device's type 1 SPB perimeter, perform link decryptionfollowed by link encryption at the image essence input and output ports.2. Respond to the Security Manager's (SM's) initiatives in establishing aTransport Layer Security (TLS) session and SPB device authentication.Maintain this session until commanded to terminate.3. LD/LE SPB Devices shall not establish security communications with morethan one SM at a time.4. LD/LE SPB Devices shall contain a UTC time reference clock that isbattery backed and operative for time stamping log events under poweredand un-powered conditions. The SPB shall communicate time informationwith the SM using standardized Intra-Theater Messaging.5. Respond to SM "status” queries, and other Intra-Theater Messages (ITMs)and SM commands as necessary to support SM behavior requirements.6. Accept and store LD/LE keys, and associated parameters, provided by theSM. The SPB shall have the capacity to store at least 16 key/parametersets.7. Purge LD/LE keys upon expiration of the SM designated validity period,SM "purge” command, SPB tamper detection, or change in TLS networkparameters suggestive of an attack or equipment substitution.8. Record security event data for logging under both powered and unpoweredconditions. Sign and assemble logged information intostandardized log records per Section 9.4.6.3.9. Monitor LD/LE SPB Device physical security protection integrity 24/7. Inthe event of intrusion or other tamper detection, terminate all activity, logDCI Digital Cinema System Specification v.1.2 Page 115
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Digital Cinema Initiatives, LLCDigi
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Table of Contents1. OVERVIEW 151.1.
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5.2.2. Packaging Fundamental Requir
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7.5.5.1. Introduction..............
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9.4.2.5. Screen Management System (
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Table of FiguresFigure 1: System Ov
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THIS PAGE LEFT BLANK INTENTIONALLYD
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equirements for encrypting the esse
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• This document specifies a basel
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DCI Digital Cinema System Specifica
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2.1.1. Major System Concepts2.1.1.1
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2.1.1.8. ReelsFeature films have be
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Metadata within the DCDM provides a
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3.2.1.6. Transfer FunctionThe CIE X
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The information, as shown in Table
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AES Pair#/Ch# Channel # Label / Nam
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3.3.4. File Format3.3.4.1. GeneralT
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3.4.3. Timed Text Concepts and Requ
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• All decoders shall decode each
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5.2.2.3. InteroperableThe Packaging
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Figure 6: Example Show PlaylistThe
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Length (Value Length), followed by
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which it was stopped or paused. It
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5.3.4.2. Frame BoundariesThe Audio
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• Rating• Aspect Ratio• Image
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• Annotation Text parameter (opti
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7.2.3.1. ReliabilityA key part of t
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• Country• Rating• Aspect Rat
Page 64 and 65: facility, while the system is in op
Page 66 and 67: Exhibitor and the Distributor, data
Page 68 and 69: 7.5.2.2. Ingest InterfacesExcept fo
Page 70 and 71: (channels) * hours * 60 min/hour *
Page 72 and 73: 7.5.4.2.4. UnpackagingAny packaged
Page 74 and 75: 7.5.6. Audio System7.5.6.1. Introdu
Page 76 and 77: made up of Theater System devices a
Page 78 and 79: DCI Digital Cinema System Specifica
Page 80 and 81: 8.2.2.3. Alternative ContentThe pro
Page 82 and 83: With the projector turned off or wi
Page 84 and 85: Image ParametersNominal(Projected I
Page 86 and 87: Input Code Values Output Chromatici
Page 88 and 89: 8.4. Projector Interfaces8.4.1. Int
Page 90 and 91: • Lens Shift Up / Down• Lamp Mo
Page 92 and 93: • Essence Encryption and Cryptogr
Page 94 and 95: content keys and Trusted Device Lis
Page 96 and 97: Figure 14: Digital Cinema Security
Page 98 and 99: Figure 15 presents the two fundamen
Page 100 and 101: DCI Digital Cinema System Specifica
Page 102 and 103: 9.4.2.3. Media Blocks (MBs)The term
Page 104 and 105: which TLS-based authentication alon
Page 106 and 107: working with the security infrastru
Page 108 and 109: Figure 18: Show Playback Overview9.
Page 110 and 111: a. Playout shall be fully supported
Page 112 and 113: 9.4.5. Intra-Theater Communications
Page 116 and 117: the event, and zero all Critical Se
Page 118 and 119: window) shall be UTC.Security Manag
Page 120 and 121: . The SM shall independently authen
Page 122 and 123: 6. No broadcast RRP commands shall
Page 124 and 125: Functions of the Security Manager (
Page 126 and 127: Note: DCI reserves the right, at so
Page 128 and 129: • Is required to survive camcorde
Page 130 and 131: • Log Data - Security event infor
Page 132 and 133: using the GetEventList and GetEvent
Page 134 and 135: failure) per Section 9.6.1.3 Digita
Page 136 and 137: • Secure Silicon -Sensitive data
Page 138 and 139: secure silicon chip, input/output s
Page 140 and 141: FIPS 140-2 level 3 devices provide
Page 142 and 143: to the appropriate Section 9.4.5.2.
Page 144 and 145: those under the control of the Secu
Page 146 and 147: Security Managers (SMs) other than
Page 148 and 149: The above RSA asymmetric protection
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Page 152 and 153: CPRL Acronym for Component Position
Page 154 and 155: LTCMain TitlesMBMDMEMetadataMTBFMXF
Page 156: TDLTimed TextTLMTLSTMSTrack FileUDP
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