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  Folding the subtreeNode of the OID tree itu-t(0) | ccitt(0) | itu-r(0)   -- International Telecommunication...
  | Unfolding the subtreeNode of the OID tree recommendation(0)   -- ITU-T Recommendations (International...
  | |-Leaf of the OID tree question(1)   -- ITU-T Questions
  | Unfolding the subtreeNode of the OID tree administration(2)   -- National administrations of ITU Member...
  | Unfolding the subtreeNode of the OID tree network-operator(3)   -- Network operators
  | Unfolding the subtreeNode of the OID tree identified-organization(4)   -- International research or industry...
  | |-Leaf of the OID tree r-recommendation(5)   -- International Telecommunication Union -...
  | Unfolding the subtreeNode of the OID tree data(9)   -- Mis-defined because some people believed it was a...
  Unfolding the subtreeNode of the OID tree iso(1)   -- International Organization for Standardization (ISO)
  Folding the subtreeNode of the OID tree joint-iso-itu-t(2) | joint-iso-ccitt(2)   -- Areas of joint work...
    |-Leaf of the OID tree presentation(0)   -- Presentation layer service and protocol
    Unfolding the subtreeNode of the OID tree asn1(1)   -- ASN.1 standards
    Unfolding the subtreeNode of the OID tree association-control(2)   -- Association Control Service Element...
    Unfolding the subtreeNode of the OID tree reliable-transfer(3)   -- Reliable transfer service element
    Unfolding the subtreeNode of the OID tree remote-operations(4)   -- Remote Operations Service Element (ROSE)
    Folding the subtreeNode of the OID tree ds(5) | directory(5)   -- Directory services
    | Unfolding the subtreeNode of the OID tree module(1)   -- ASN.1 modules
    | |-Leaf of the OID tree serviceElement(2)   -- Directory service elements
    | Unfolding the subtreeNode of the OID tree applicationContext(3)   -- Application contexts
    | Unfolding the subtreeNode of the OID tree attributeType(4) | at(4) | id-at(4)   -- Attribute types
    | Unfolding the subtreeNode of the OID tree attributeSyntaxVendor(5)   -- Attribute syntax vendor
    | Unfolding the subtreeNode of the OID tree objectClass(6)   -- Information object classes
    | |-Leaf of the OID tree attribute-set(7)   -- X.500 attribute sets
    | Unfolding the subtreeNode of the OID tree algorithm(8)   -- Enveloped digital signature algorithms
    | Unfolding the subtreeNode of the OID tree abstractSyntax(9)   -- Abstract syntaxes
    | |-Leaf of the OID tree object(10)   -- Objects
    | |-Leaf of the OID tree port(11)   -- Ports
    | Unfolding the subtreeNode of the OID tree dsaOperationalAttribute(12)   -- Directory System Agent (DSA)...
    | Unfolding the subtreeNode of the OID tree matchingRule(13)   -- Matching rules
    | Unfolding the subtreeNode of the OID tree knowledgeMatchingRule(14)   -- Knowledge matching rules
    | Unfolding the subtreeNode of the OID tree nameForm(15)   -- Name forms
    | |-Leaf of the OID tree group(16)   -- Groups
    | Unfolding the subtreeNode of the OID tree subentry(17)   -- Subentries
    | Unfolding the subtreeNode of the OID tree operationalAttributeType(18)   -- Operational attribute types
    | Unfolding the subtreeNode of the OID tree operationalBinding(19)   -- Operational bindings
    | Unfolding the subtreeNode of the OID tree schemaObjectClass(20)   -- Schema object classes
    | Unfolding the subtreeNode of the OID tree schemaOperationalAttribute(21)   -- Schema operational attributes
    | Unfolding the subtreeNode of the OID tree administrativeRoles(23)   -- Administrative roles
    | Unfolding the subtreeNode of the OID tree accessControlAttribute(24)   -- Access control attributes
    | Unfolding the subtreeNode of the OID tree rosObject(25)   -- Remote Operations Service (ROS) objects
    | Unfolding the subtreeNode of the OID tree contract(26)   -- Contracts
    | Unfolding the subtreeNode of the OID tree package(27)   -- Packages
    | Unfolding the subtreeNode of the OID tree accessControlSchemes(28)   -- Access control schemes
    | Folding the subtreeNode of the OID tree certificateExtension(29) | ce(29) | id-ce(29)   -- Certificate...
    | | |-Leaf of the OID tree 1   -- Obsolete (formerly, "authorityKeyIdentifier")
    | | |-Leaf of the OID tree keyAttributes(2)   -- Obsolete
    | | |-Leaf of the OID tree 3   -- Obsolete (formerly, "certificatePolicies")
    | | |-Leaf of the OID tree keyUsageRestriction(4)   -- Obsolete
    | | |-Leaf of the OID tree policyMapping(5)   -- Obsolete
    | | |-Leaf of the OID tree subtreesConstraint(6)   -- Obsolete
    | | |-Leaf of the OID tree 7   -- Obsolete (formerly "subjectAltName")
    | | |-Leaf of the OID tree 8   -- Obsolete (formerly, "issuerAltName")
    | | Unfolding the subtreeNode of the OID tree subjectDirectoryAttributes(9) | id-ce-subjectDirectoryAttributes(9)   -- ...
    | | |-Leaf of the OID tree 10   -- Obsolete (formerly, "basicConstraints")
    | | |-Leaf of the OID tree 11   -- Obsolete
    | | |-Leaf of the OID tree 12   -- Obsolete
    | | |-Leaf of the OID tree 13   -- Obsolete
    | | Unfolding the subtreeNode of the OID tree subjectKeyIdentifier(14) | id-ce-subjectKeyIdentifier(14)   -- ...
    | | Unfolding the subtreeNode of the OID tree keyUsage(15) | id-ce-keyUsage(15)   -- "keyUsage" extension
    | | Unfolding the subtreeNode of the OID tree privateKeyUsagePeriod(16)   -- "privateKeyUsagePeriod"...
    | | Unfolding the subtreeNode of the OID tree subjectAltName(17)   -- "subjectAltName" extension
    | | Unfolding the subtreeNode of the OID tree issuerAltName(18) | id-ce-issuerAltName(18)   -- ...
    | | Unfolding the subtreeNode of the OID tree basicConstraints(19) | id-ce-basicConstraints(19)   -- ...
    | | Unfolding the subtreeNode of the OID tree cRLNumber(20) | id-ce-cRLNumber(20)   -- "cRLNumber" extension
    | | Unfolding the subtreeNode of the OID tree reasonCode(21) | id-ce-cRLReasons(21)   -- "reasonCode"...
    | | |-Leaf of the OID tree expirationDate(22)   -- Expiration date
    | | Unfolding the subtreeNode of the OID tree instructionCode(23) | id-ce-holdInstructionCode(23)   -- ...
    | | Unfolding the subtreeNode of the OID tree invalidityDate(24) | id-ce-invalidityDate(24)   -- ...
    | | |-Leaf of the OID tree 25   -- Obsolete (foremerly, "cRLDistributionPoints")
    | | |-Leaf of the OID tree 26   -- Obsolete (formerly, "id-ce-issuingDistributionPoint")
    | | Unfolding the subtreeNode of the OID tree deltaCRLIndicator(27) | id-ce-deltaCRLIndicator(27)   -- ...
    | | Unfolding the subtreeNode of the OID tree issuingDistributionPoint(28) | id-ce-issuingDistributionPoint(28)   -- ...
    | | Unfolding the subtreeNode of the OID tree certificateIssuer(29) | id-ce-certificateIssuer(29)   -- ...
    | | Unfolding the subtreeNode of the OID tree nameConstraints(30) | id-ce-nameConstraints(30)   -- ...
    | | Unfolding the subtreeNode of the OID tree cRLDistributionPoints(31) | id-ce-cRLDistributionPoints(31)   -- ...
    | | Unfolding the subtreeNode of the OID tree certificatePolicies(32) | id-ce-certificatePolicies(32)   -- ...
    | | Unfolding the subtreeNode of the OID tree policyMappings(33) | id-ce-policyMappings(33)   -- ...
    | | |-Leaf of the OID tree 34   -- Oboslete (formerly, "policyConstraints")
    | | Unfolding the subtreeNode of the OID tree authorityKeyIdentifier(35) | id-ce-authorityKeyIdentifier(35)   -- ...
    | | Unfolding the subtreeNode of the OID tree policyConstraints(36) | id-ce-policyConstraints(36)   -- ...
    | | Unfolding the subtreeNode of the OID tree extKeyUsage(37) | id-ce-extKeyUsage(37)   -- "extKeyUsage"...
    | | Unfolding the subtreeNode of the OID tree authorityAttributeIdentifier(38)   -- ...
    | | Unfolding the subtreeNode of the OID tree roleSpecCertIdentifier(39)   -- "roleSpecCertIdentifier"...
    | | Unfolding the subtreeNode of the OID tree cRLStreamIdentifier(40)   -- "cRLStreamIdentifier" extension
    | | Unfolding the subtreeNode of the OID tree basicAttConstraints(41)   -- "basicAttConstraints" extension
    | | Unfolding the subtreeNode of the OID tree delegatedNameConstraints(42)   -- "delegatedNameConstraints"...
    | | Unfolding the subtreeNode of the OID tree timeSpecification(43)   -- "timeSpecification" extension
    | | Unfolding the subtreeNode of the OID tree cRLScope(44)   -- "crlScope" extension
    | | Unfolding the subtreeNode of the OID tree statusReferrals(45)   -- "statusReferrals" extension
    | | Unfolding the subtreeNode of the OID tree freshestCRL(46) | id-ce-freshestCRL(46)   -- "freshestCRL"...
    | | Unfolding the subtreeNode of the OID tree orderedList(47)   -- "orderedList" extension
    | | Unfolding the subtreeNode of the OID tree attributeDescriptor(48)   -- "attributeDescriptor" extension
    | | Unfolding the subtreeNode of the OID tree userNotice(49)   -- "userNotice" extension
    | | Unfolding the subtreeNode of the OID tree sOAIdentifier(50)   -- "sOAIdentifier" extension
    | | Unfolding the subtreeNode of the OID tree baseUpdateTime(51)   -- "baseUpdateTime" extension
    | | Unfolding the subtreeNode of the OID tree acceptableCertPolicies(52)   -- "acceptableCertPolicies"...
    | | Unfolding the subtreeNode of the OID tree deltaInfo(53)   -- "deltaInfo" extension
    | | Unfolding the subtreeNode of the OID tree inhibitAnyPolicy(54) | id-ce-inhibitAnyPolicy(54)   -- ...
    | | Unfolding the subtreeNode of the OID tree targetInformation(55) | id-ce-targetInformation(55)   -- ...
    | | Unfolding the subtreeNode of the OID tree noRevAvail(56)   -- "noRevAvail" extension
    | | Unfolding the subtreeNode of the OID tree acceptablePrivilegePolicies(57)   -- ...
    | | Unfolding the subtreeNode of the OID tree id-ce-toBeRevoked(58)   -- "toBeRevoked" extension
    | | Unfolding the subtreeNode of the OID tree id-ce-RevokedGroups(59)   -- "revokedGroups" extension
    | | Unfolding the subtreeNode of the OID tree id-ce-expiredCertsOnCRL(60)   -- "expiredCertsOnCRL" extension
    | | Unfolding the subtreeNode of the OID tree indirectIssuer(61)   -- "indirectIssuer" extension
    | | Unfolding the subtreeNode of the OID tree id-ce-noAssertion(62)   -- "noAssertion" extension
    | | Unfolding the subtreeNode of the OID tree id-ce-aAissuingDistributionPoint(63)   -- ...
    | | Unfolding the subtreeNode of the OID tree id-ce-issuedOnBehaIFOF(64)   -- "issuedOnBehalfOf" extension
    | | Unfolding the subtreeNode of the OID tree id-ce-singleUse(65)   -- "singleUse" extension
    | | Unfolding the subtreeNode of the OID tree id-ce-groupAC(66)   -- "groupAC" extension
    | | Unfolding the subtreeNode of the OID tree id-ce-allowedAttAss(67)   -- "allowedAttributeAssignments"...
    | | Unfolding the subtreeNode of the OID tree id-ce-attributeMappings(68)   -- Attribute mappings
    | | Unfolding the subtreeNode of the OID tree id-ce-holderNameConstraints(69)   -- "holderNameConstraints"...
    | | Unfolding the subtreeNode of the OID tree id-ce-a-authorizationValidation(70)   -- ...
    | | Unfolding the subtreeNode of the OID tree id-ce-protRestrict(71)   -- "protRestrict" extension
    | | Unfolding the subtreeNode of the OID tree id-ce-subjectAltPublicKeyInfo(72)   -- ...
    | | Unfolding the subtreeNode of the OID tree id-ce-altSignatureAlgorithm(73)   -- "altSignatureAlgorithm"...
    | | Unfolding the subtreeNode of the OID tree id-ce-altSignatureValue(74)   -- "altSignatureValue" extension
    | | -Leaf of the OID tree id-ce-associatedInformation(75)   -- "associatedInformation"...
    | Unfolding the subtreeNode of the OID tree managementObject(30)   -- Management objects
    | Unfolding the subtreeNode of the OID tree attributeValueContext(31)   -- Attribute value contexts
    | Folding the subtreeNode of the OID tree securityExchange(32)   -- Security exchanges
    | | |-Leaf of the OID tree threewayse(1)   -- Security exchange:"Three-way"
    | | -Leaf of the OID tree spkmthreewayse(2)   -- Simple Public Key Mechanism (SPKM)...
    | Unfolding the subtreeNode of the OID tree idmProtocol(33)   -- Internet Directly Mapped (IDM) protocol
    | Unfolding the subtreeNode of the OID tree problem(34)   -- Problem definitions
    | Unfolding the subtreeNode of the OID tree notification(35)   -- Notification attributes
    | |-Leaf of the OID tree matchingRestriction(36)   -- Matching restrictions
    | Unfolding the subtreeNode of the OID tree controlAttributeType(37)   -- Control attribute types
    | |-Leaf of the OID tree keyPurposes(38)   -- Key purposes
    | Unfolding the subtreeNode of the OID tree passwordQuality(39)   -- Password quality
    | Unfolding the subtreeNode of the OID tree attributeSyntax(40) | asx(40)   -- Attribute syntaxes
    | Unfolding the subtreeNode of the OID tree avRestriction(41)   -- "avRestriction"
    | |-Leaf of the OID tree cmsContentType(42)   -- Certificate Management System (CMS)...
    | Unfolding the subtreeNode of the OID tree wrprot(43) | wrapperProtocolType(43)   -- Protected protocols
    | Unfolding the subtreeNode of the OID tree algo(44) | algorithm(44)   -- Algorithms
    Unfolding the subtreeNode of the OID tree mhs(6) | mhs-motis(6)   -- Message Handling System (MHS), also...
    Unfolding the subtreeNode of the OID tree ccr(7)   -- Commitment, Concurrency and Recovery (CCR) service and...
    Unfolding the subtreeNode of the OID tree oda(8)   -- Open Document Architecture (ODA)
    Unfolding the subtreeNode of the OID tree ms(9) | osi-management(9)   -- OSI network management, and...
    Unfolding the subtreeNode of the OID tree transaction-processing(10)   -- Transaction processing
    Folding the subtreeNode of the OID tree dor(11) | distinguished-object-reference(11)   -- ISO 10031-2...
    | |-Leaf of the OID tree reference-definition(0)   -- ASN.1 module named DOR-definition
    | |-Leaf of the OID tree reference-abstract-syntax(1)   -- Abstract syntax of...
    | Unfolding the subtreeNode of the OID tree reference-syntax(2)   -- Reference-syntax of...
    Unfolding the subtreeNode of the OID tree reference-data-transfer(12) | rdt(12)   -- Referenced Data...
    Unfolding the subtreeNode of the OID tree network-layer(13) | network-layer-management(13)   -- Network...
    Unfolding the subtreeNode of the OID tree transport-layer(14) | transport-layer-management(14)   -- ...
    Unfolding the subtreeNode of the OID tree datalink-layer(15) | datalink-layer-management(15) | ...   -- OSI data...
    Unfolding the subtreeNode of the OID tree country(16)   -- Joint (ITU-T and ISO/IEC) registration within a...
    Unfolding the subtreeNode of the OID tree registration-procedures(17)   -- ISO/IEC and/or ITU-T activities...
    Unfolding the subtreeNode of the OID tree physical-layer(18) | physical-layer-management(18)   -- Physical...
    Unfolding the subtreeNode of the OID tree mheg(19)   -- Multimedia and Hypermedia information coding Expert...
    Unfolding the subtreeNode of the OID tree genericULS(20) | generic-upper-layers-security(20) | guls(20)   -- ...
    Unfolding the subtreeNode of the OID tree transport-layer-security-protocol(21)   -- Transport layer...
    Unfolding the subtreeNode of the OID tree network-layer-security-protocol(22)   -- Network layer security...
    Folding the subtreeNode of the OID tree international-organizations(23)   -- International organizations
    | Unfolding the subtreeNode of the OID tree set(42)   -- Secure Electronic Transactions (SET)
    | Unfolding the subtreeNode of the OID tree wap(43) | oma(43)   -- Open Mobile Alliance (OMA) (originally...
    | |-Leaf of the OID tree 128   -- Teleglobe, Inc.
    | |-Leaf of the OID tree 129   -- Key Recovery Alliance
    | |-Leaf of the OID tree 130   -- Object Management Group
    | |-Leaf of the OID tree 131   -- Visa International
    | |-Leaf of the OID tree 132   -- Comprehensive nuclear-Test-Ban Treaty Organization...
    | Unfolding the subtreeNode of the OID tree 133   -- Trusted Computing Group (TCG)
    | |-Leaf of the OID tree 134   -- Ceska Posta s.p.
    | |-Leaf of the OID tree 135   -- "HBOS Plc"
    | Unfolding the subtreeNode of the OID tree icao(136)   -- International Civil Aviation Organization (ICAO)
    | |-Leaf of the OID tree 137   -- Comrad Medical Systems
    | |-Leaf of the OID tree 138   -- International Atomic Energy Agency (IAEA)
    | |-Leaf of the OID tree 139   -- British Sky Broadcasting Group
    | Unfolding the subtreeNode of the OID tree ca-browser-forum(140)   -- CA/Browser Forum
    | |-Leaf of the OID tree wac-application-services-limited(141)   -- "WAC" Application...
    | Unfolding the subtreeNode of the OID tree tca(143) | simalliance(143)   -- Trusted Connectivity Alliance
    | |-Leaf of the OID tree 144   -- Directorate General of The General Security of Lebanon
    | Unfolding the subtreeNode of the OID tree gsma(146)   -- GSMA
    | -Leaf of the OID tree 147   -- Peripheral Component Interconnect Special Interest...
    Folding the subtreeNode of the OID tree sios(24)   -- Security Information Objects (SIOs) for access...
    | Unfolding the subtreeNode of the OID tree specification(0)   -- Specification
    Unfolding the subtreeNode of the OID tree uuid(25)   -- Universally Unique IDentifiers (UUIDs) generated in...
    Unfolding the subtreeNode of the OID tree odp(26)   -- Rec. ITU-T X.900 series | ISO/IEC 10746 & 13235...
    Unfolding the subtreeNode of the OID tree tag-based(27) | nid(27)   -- Tag-based identifications...
    Folding the subtreeNode of the OID tree its(28)   -- Intelligent Transport Systems (ITS)
    | Unfolding the subtreeNode of the OID tree its-misc(0)   -- Intelligent Transport Systems (ITS) data...
    | |-Leaf of the OID tree fieldDevice(3)   -- fieldDevice OBJECT-IDENTITY
    | |-Leaf of the OID tree fdVms(4)   -- fdVms OBJECT-IDENTITY
    | -Leaf of the OID tree gddCodes(5)   -- Graphic Data Dictionary (GDD) codes
    Folding the subtreeNode of the OID tree upu(40)   -- Universal Postal Union (UPU)
    | Unfolding the subtreeNode of the OID tree standard(0)   -- Universal Postal Union (UPU) standards
    | |-Leaf of the OID tree member-body(2)   -- Member bodies (postal administrations)
    | Unfolding the subtreeNode of the OID tree identified-organization(3)   -- Data content related to...
    Unfolding the subtreeNode of the OID tree bip(41)   -- Rec. ITU-T X.1083 | ISO/IEC 24708 "Bio application...
    Unfolding the subtreeNode of the OID tree telebiometrics(42)   -- Telebiometrics including telehealth and...
    Unfolding the subtreeNode of the OID tree cybersecurity(48)   -- Cybersecurity information exchange
    Unfolding the subtreeNode of the OID tree alerting(49)   -- Alerts and alerting agencies according to...
    Folding the subtreeNode of the OID tree ors(50)   -- Rec. ITU-T X.672 | ISO/IEC 29168-1 "Information...
    | Unfolding the subtreeNode of the OID tree modules(0)   -- ASN.1 modules
    Unfolding the subtreeNode of the OID tree gs1(51)   -- GS1
    Unfolding the subtreeNode of the OID tree uav(52)   -- Unmanned Aerial Vehicles (UAVs)
    -Leaf of the OID tree example(999)   -- Example
 
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Notes:
→ To unfold (respectively, fold) a particular level of the tree, click on an icon like Unfolding the subtree (resp., Folding the subtree).
→ The beginning of each OID description is displayed on the left of each arc. For a display without descriptions, please click on Undetailed tree display.
 
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