Appendix A.  Pseudo-ASN.1 Structures and OIDs

   This appendix describes data objects used by conforming PKI
   components in an "ASN.1-like" syntax.  This syntax is a hybrid of the
   1988 and 1993 ASN.1 syntaxes.  The 1988 ASN.1 syntax is augmented
   with 1993 UNIVERSAL Types UniversalString, BMPString, and UTF8String.

   The ASN.1 syntax does not permit the inclusion of type statements in
   the ASN.1 module, and the 1993 ASN.1 standard does not permit use of
   the new UNIVERSAL types in modules using the 1988 syntax.  As a
   result, this module does not conform to either version of the ASN.1
   standard.

   This appendix may be converted into 1988 ASN.1 by replacing the
   definitions for the UNIVERSAL Types with the 1988 catch-all "ANY".

A.1.  Explicitly Tagged Module, 1988 Syntax

PKIX1Explicit88 { iso(1) identified-organization(3) dod(6) internet(1)
  security(5) mechanisms(5) pkix(7) id-mod(0) id-pkix1-explicit(18) }

DEFINITIONS EXPLICIT TAGS ::=

BEGIN

-- EXPORTS ALL --

-- IMPORTS NONE --

-- UNIVERSAL Types defined in 1993 and 1998 ASN.1
-- and required by this specification

UniversalString ::= [UNIVERSAL 28] IMPLICIT OCTET STRING
        -- UniversalString is defined in ASN.1:1993

BMPString ::= [UNIVERSAL 30] IMPLICIT OCTET STRING
      -- BMPString is the subtype of UniversalString and models
      -- the Basic Multilingual Plane of ISO/IEC 10646

UTF8String ::= [UNIVERSAL 12] IMPLICIT OCTET STRING
      -- The content of this type conforms to RFC 3629.

-- PKIX specific OIDs

id-pkix  OBJECT IDENTIFIER  ::=
         { iso(1) identified-organization(3) dod(6) internet(1)
                    security(5) mechanisms(5) pkix(7) }

-- PKIX arcs

id-pe OBJECT IDENTIFIER ::= { id-pkix 1 }
        -- arc for private certificate extensions
id-qt OBJECT IDENTIFIER ::= { id-pkix 2 }
        -- arc for policy qualifier types
id-kp OBJECT IDENTIFIER ::= { id-pkix 3 }
        -- arc for extended key purpose OIDS
id-ad OBJECT IDENTIFIER ::= { id-pkix 48 }
        -- arc for access descriptors

-- policyQualifierIds for Internet policy qualifiers

id-qt-cps      OBJECT IDENTIFIER ::=  { id-qt 1 }
      -- OID for CPS qualifier
id-qt-unotice  OBJECT IDENTIFIER ::=  { id-qt 2 }
      -- OID for user notice qualifier

-- access descriptor definitions

id-ad-ocsp         OBJECT IDENTIFIER ::= { id-ad 1 }
id-ad-caIssuers    OBJECT IDENTIFIER ::= { id-ad 2 }
id-ad-timeStamping OBJECT IDENTIFIER ::= { id-ad 3 }
id-ad-caRepository OBJECT IDENTIFIER ::= { id-ad 5 }

-- attribute data types

Attribute               ::= SEQUENCE {
      type             AttributeType,
      values    SET OF AttributeValue }
            -- at least one value is required

AttributeType           ::= OBJECT IDENTIFIER

AttributeValue          ::= ANY -- DEFINED BY AttributeType

AttributeTypeAndValue   ::= SEQUENCE {
        type    AttributeType,
        value   AttributeValue }

-- suggested naming attributes: Definition of the following
--   information object set may be augmented to meet local
--   requirements.  Note that deleting members of the set may
--   prevent interoperability with conforming implementations.
-- presented in pairs: the AttributeType followed by the
--   type definition for the corresponding AttributeValue

-- Arc for standard naming attributes

id-at OBJECT IDENTIFIER ::= { joint-iso-ccitt(2) ds(5) 4 }

-- Naming attributes of type X520name

id-at-name                AttributeType ::= { id-at 41 }
id-at-surname             AttributeType ::= { id-at  4 }
id-at-givenName           AttributeType ::= { id-at 42 }
id-at-initials            AttributeType ::= { id-at 43 }
id-at-generationQualifier AttributeType ::= { id-at 44 }

-- Naming attributes of type X520Name:
--   X520name ::= DirectoryString (SIZE (1..ub-name))
--
-- Expanded to avoid parameterized type:
X520name ::= CHOICE {
      teletexString     TeletexString   (SIZE (1..ub-name)),
      printableString   PrintableString (SIZE (1..ub-name)),
      universalString   UniversalString (SIZE (1..ub-name)),
      utf8String        UTF8String      (SIZE (1..ub-name)),
      bmpString         BMPString       (SIZE (1..ub-name)) }

-- Naming attributes of type X520CommonName

id-at-commonName        AttributeType ::= { id-at 3 }

-- Naming attributes of type X520CommonName:
--   X520CommonName ::= DirectoryName (SIZE (1..ub-common-name))
--
-- Expanded to avoid parameterized type:
X520CommonName ::= CHOICE {
      teletexString     TeletexString   (SIZE (1..ub-common-name)),
      printableString   PrintableString (SIZE (1..ub-common-name)),
      universalString   UniversalString (SIZE (1..ub-common-name)),
      utf8String        UTF8String      (SIZE (1..ub-common-name)),
      bmpString         BMPString       (SIZE (1..ub-common-name)) }

-- Naming attributes of type X520LocalityName

id-at-localityName      AttributeType ::= { id-at 7 }

-- Naming attributes of type X520LocalityName:
--   X520LocalityName ::= DirectoryName (SIZE (1..ub-locality-name))
--
-- Expanded to avoid parameterized type:
X520LocalityName ::= CHOICE {
      teletexString     TeletexString   (SIZE (1..ub-locality-name)),
      printableString   PrintableString (SIZE (1..ub-locality-name)),
      universalString   UniversalString (SIZE (1..ub-locality-name)),
      utf8String        UTF8String      (SIZE (1..ub-locality-name)),
      bmpString         BMPString       (SIZE (1..ub-locality-name)) }

-- Naming attributes of type X520StateOrProvinceName

id-at-stateOrProvinceName AttributeType ::= { id-at 8 }

-- Naming attributes of type X520StateOrProvinceName:
--   X520StateOrProvinceName ::= DirectoryName (SIZE (1..ub-state-name))
--
-- Expanded to avoid parameterized type:
X520StateOrProvinceName ::= CHOICE {
      teletexString     TeletexString   (SIZE (1..ub-state-name)),
      printableString   PrintableString (SIZE (1..ub-state-name)),
      universalString   UniversalString (SIZE (1..ub-state-name)),
      utf8String        UTF8String      (SIZE (1..ub-state-name)),
      bmpString         BMPString       (SIZE (1..ub-state-name)) }

-- Naming attributes of type X520OrganizationName

id-at-organizationName  AttributeType ::= { id-at 10 }

-- Naming attributes of type X520OrganizationName:
--   X520OrganizationName ::=
--          DirectoryName (SIZE (1..ub-organization-name))
--
-- Expanded to avoid parameterized type:
X520OrganizationName ::= CHOICE {
      teletexString     TeletexString
                          (SIZE (1..ub-organization-name)),
      printableString   PrintableString
                          (SIZE (1..ub-organization-name)),
      universalString   UniversalString
                          (SIZE (1..ub-organization-name)),
      utf8String        UTF8String
                          (SIZE (1..ub-organization-name)),
      bmpString         BMPString
                          (SIZE (1..ub-organization-name))  }

-- Naming attributes of type X520OrganizationalUnitName

id-at-organizationalUnitName AttributeType ::= { id-at 11 }

-- Naming attributes of type X520OrganizationalUnitName:
--   X520OrganizationalUnitName ::=
--          DirectoryName (SIZE (1..ub-organizational-unit-name))
--
-- Expanded to avoid parameterized type:
X520OrganizationalUnitName ::= CHOICE {
      teletexString     TeletexString
                          (SIZE (1..ub-organizational-unit-name)),
      printableString   PrintableString
                          (SIZE (1..ub-organizational-unit-name)),
      universalString   UniversalString
                          (SIZE (1..ub-organizational-unit-name)),
      utf8String        UTF8String
                          (SIZE (1..ub-organizational-unit-name)),
      bmpString         BMPString
                          (SIZE (1..ub-organizational-unit-name)) }

-- Naming attributes of type X520Title

id-at-title             AttributeType ::= { id-at 12 }

-- Naming attributes of type X520Title:
--   X520Title ::= DirectoryName (SIZE (1..ub-title))
--
-- Expanded to avoid parameterized type:
X520Title ::= CHOICE {
      teletexString     TeletexString   (SIZE (1..ub-title)),
      printableString   PrintableString (SIZE (1..ub-title)),
      universalString   UniversalString (SIZE (1..ub-title)),
      utf8String        UTF8String      (SIZE (1..ub-title)),
      bmpString         BMPString       (SIZE (1..ub-title)) }

-- Naming attributes of type X520dnQualifier

id-at-dnQualifier       AttributeType ::= { id-at 46 }

X520dnQualifier ::=     PrintableString

-- Naming attributes of type X520countryName (digraph from IS 3166)

id-at-countryName       AttributeType ::= { id-at 6 }

X520countryName ::=     PrintableString (SIZE (2))

-- Naming attributes of type X520SerialNumber

id-at-serialNumber      AttributeType ::= { id-at 5 }

X520SerialNumber ::=    PrintableString (SIZE (1..ub-serial-number))

-- Naming attributes of type X520Pseudonym

id-at-pseudonym         AttributeType ::= { id-at 65 }

-- Naming attributes of type X520Pseudonym:
--   X520Pseudonym ::= DirectoryName (SIZE (1..ub-pseudonym))
--
-- Expanded to avoid parameterized type:
X520Pseudonym ::= CHOICE {
   teletexString     TeletexString   (SIZE (1..ub-pseudonym)),
   printableString   PrintableString (SIZE (1..ub-pseudonym)),
   universalString   UniversalString (SIZE (1..ub-pseudonym)),
   utf8String        UTF8String      (SIZE (1..ub-pseudonym)),
   bmpString         BMPString       (SIZE (1..ub-pseudonym)) }

-- Naming attributes of type DomainComponent (from RFC 4519)

id-domainComponent   AttributeType ::= { 0 9 2342 19200300 100 1 25 }

DomainComponent ::=  IA5String

-- Legacy attributes

pkcs-9 OBJECT IDENTIFIER ::=
       { iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) 9 }

id-emailAddress      AttributeType ::= { pkcs-9 1 }

EmailAddress ::=     IA5String (SIZE (1..ub-emailaddress-length))

-- naming data types --

Name ::= CHOICE { -- only one possibility for now --
      rdnSequence  RDNSequence }

RDNSequence ::= SEQUENCE OF RelativeDistinguishedName

DistinguishedName ::=   RDNSequence

RelativeDistinguishedName ::= SET SIZE (1..MAX) OF AttributeTypeAndValue

-- Directory string type --

DirectoryString ::= CHOICE {
      teletexString       TeletexString   (SIZE (1..MAX)),
      printableString     PrintableString (SIZE (1..MAX)),
      universalString     UniversalString (SIZE (1..MAX)),
      utf8String          UTF8String      (SIZE (1..MAX)),
      bmpString           BMPString       (SIZE (1..MAX)) }

-- certificate and CRL specific structures begin here

Certificate  ::=  SEQUENCE  {
     tbsCertificate       TBSCertificate,
     signatureAlgorithm   AlgorithmIdentifier,
     signature            BIT STRING  }

TBSCertificate  ::=  SEQUENCE  {
     version         [0]  Version DEFAULT v1,
     serialNumber         CertificateSerialNumber,
     signature            AlgorithmIdentifier,
     issuer               Name,
     validity             Validity,
     subject              Name,
     subjectPublicKeyInfo SubjectPublicKeyInfo,
     issuerUniqueID  [1]  IMPLICIT UniqueIdentifier OPTIONAL,
                          -- If present, version MUST be v2 or v3
     subjectUniqueID [2]  IMPLICIT UniqueIdentifier OPTIONAL,
                          -- If present, version MUST be v2 or v3
     extensions      [3]  Extensions OPTIONAL
                          -- If present, version MUST be v3 --  }

Version  ::=  INTEGER  {  v1(0), v2(1), v3(2)  }

CertificateSerialNumber  ::=  INTEGER

Validity ::= SEQUENCE {
     notBefore      Time,
     notAfter       Time  }

Time ::= CHOICE {
     utcTime        UTCTime,
     generalTime    GeneralizedTime }

UniqueIdentifier  ::=  BIT STRING

SubjectPublicKeyInfo  ::=  SEQUENCE  {
     algorithm            AlgorithmIdentifier,
     subjectPublicKey     BIT STRING  }

Extensions  ::=  SEQUENCE SIZE (1..MAX) OF Extension

Extension  ::=  SEQUENCE  {
     extnID      OBJECT IDENTIFIER,
     critical    BOOLEAN DEFAULT FALSE,
     extnValue   OCTET STRING
                 -- contains the DER encoding of an ASN.1 value
                 -- corresponding to the extension type identified
                 -- by extnID
     }

-- CRL structures

CertificateList  ::=  SEQUENCE  {
     tbsCertList          TBSCertList,
     signatureAlgorithm   AlgorithmIdentifier,
     signature            BIT STRING  }

TBSCertList  ::=  SEQUENCE  {
     version                 Version OPTIONAL,
                                   -- if present, MUST be v2
     signature               AlgorithmIdentifier,
     issuer                  Name,
     thisUpdate              Time,
     nextUpdate              Time OPTIONAL,
     revokedCertificates     SEQUENCE OF SEQUENCE  {
          userCertificate         CertificateSerialNumber,
          revocationDate          Time,
          crlEntryExtensions      Extensions OPTIONAL
                                   -- if present, version MUST be v2
                               }  OPTIONAL,
     crlExtensions           [0] Extensions OPTIONAL }
                                   -- if present, version MUST be v2

-- Version, Time, CertificateSerialNumber, and Extensions were
-- defined earlier for use in the certificate structure

AlgorithmIdentifier  ::=  SEQUENCE  {
     algorithm               OBJECT IDENTIFIER,
     parameters              ANY DEFINED BY algorithm OPTIONAL  }
                                -- contains a value of the type
                                -- registered for use with the
                                -- algorithm object identifier value

-- X.400 address syntax starts here

ORAddress ::= SEQUENCE {
   built-in-standard-attributes BuiltInStandardAttributes,
   built-in-domain-defined-attributes
                   BuiltInDomainDefinedAttributes OPTIONAL,
   -- see also teletex-domain-defined-attributes
   extension-attributes ExtensionAttributes OPTIONAL }

-- Built-in Standard Attributes

BuiltInStandardAttributes ::= SEQUENCE {
   country-name                  CountryName OPTIONAL,
   administration-domain-name    AdministrationDomainName OPTIONAL,
   network-address           [0] IMPLICIT NetworkAddress OPTIONAL,
     -- see also extended-network-address
   terminal-identifier       [1] IMPLICIT TerminalIdentifier OPTIONAL,
   private-domain-name       [2] PrivateDomainName OPTIONAL,
   organization-name         [3] IMPLICIT OrganizationName OPTIONAL,
     -- see also teletex-organization-name
   numeric-user-identifier   [4] IMPLICIT NumericUserIdentifier
                                 OPTIONAL,
   personal-name             [5] IMPLICIT PersonalName OPTIONAL,
     -- see also teletex-personal-name
   organizational-unit-names [6] IMPLICIT OrganizationalUnitNames
                                 OPTIONAL }
     -- see also teletex-organizational-unit-names

CountryName ::= [APPLICATION 1] CHOICE {
   x121-dcc-code         NumericString
                           (SIZE (ub-country-name-numeric-length)),
   iso-3166-alpha2-code  PrintableString
                           (SIZE (ub-country-name-alpha-length)) }

AdministrationDomainName ::= [APPLICATION 2] CHOICE {
   numeric   NumericString   (SIZE (0..ub-domain-name-length)),
   printable PrintableString (SIZE (0..ub-domain-name-length)) }

NetworkAddress ::= X121Address  -- see also extended-network-address

X121Address ::= NumericString (SIZE (1..ub-x121-address-length))

TerminalIdentifier ::= PrintableString (SIZE (1..ub-terminal-id-length))

PrivateDomainName ::= CHOICE {
   numeric   NumericString   (SIZE (1..ub-domain-name-length)),
   printable PrintableString (SIZE (1..ub-domain-name-length)) }

OrganizationName ::= PrintableString
                            (SIZE (1..ub-organization-name-length))
  -- see also teletex-organization-name

NumericUserIdentifier ::= NumericString
                            (SIZE (1..ub-numeric-user-id-length))

PersonalName ::= SET {
   surname     [0] IMPLICIT PrintableString
                    (SIZE (1..ub-surname-length)),
   given-name  [1] IMPLICIT PrintableString
                    (SIZE (1..ub-given-name-length)) OPTIONAL,
   initials    [2] IMPLICIT PrintableString
                    (SIZE (1..ub-initials-length)) OPTIONAL,
   generation-qualifier [3] IMPLICIT PrintableString
                    (SIZE (1..ub-generation-qualifier-length))
                    OPTIONAL }
  -- see also teletex-personal-name

OrganizationalUnitNames ::= SEQUENCE SIZE (1..ub-organizational-units)
                             OF OrganizationalUnitName
  -- see also teletex-organizational-unit-names

OrganizationalUnitName ::= PrintableString (SIZE
                    (1..ub-organizational-unit-name-length))

-- Built-in Domain-defined Attributes

BuiltInDomainDefinedAttributes ::= SEQUENCE SIZE
                    (1..ub-domain-defined-attributes) OF
                    BuiltInDomainDefinedAttribute

BuiltInDomainDefinedAttribute ::= SEQUENCE {
   type PrintableString (SIZE
                   (1..ub-domain-defined-attribute-type-length)),
   value PrintableString (SIZE
                   (1..ub-domain-defined-attribute-value-length)) }

-- Extension Attributes

ExtensionAttributes ::= SET SIZE (1..ub-extension-attributes) OF
               ExtensionAttribute

ExtensionAttribute ::=  SEQUENCE {
   extension-attribute-type [0] IMPLICIT INTEGER
                   (0..ub-extension-attributes),
   extension-attribute-value [1]
                   ANY DEFINED BY extension-attribute-type }

-- Extension types and attribute values

common-name INTEGER ::= 1

CommonName ::= PrintableString (SIZE (1..ub-common-name-length))

teletex-common-name INTEGER ::= 2

TeletexCommonName ::= TeletexString (SIZE (1..ub-common-name-length))

teletex-organization-name INTEGER ::= 3

TeletexOrganizationName ::=
                TeletexString (SIZE (1..ub-organization-name-length))

teletex-personal-name INTEGER ::= 4

TeletexPersonalName ::= SET {
   surname     [0] IMPLICIT TeletexString
                    (SIZE (1..ub-surname-length)),
   given-name  [1] IMPLICIT TeletexString
                    (SIZE (1..ub-given-name-length)) OPTIONAL,
   initials    [2] IMPLICIT TeletexString
                    (SIZE (1..ub-initials-length)) OPTIONAL,
   generation-qualifier [3] IMPLICIT TeletexString
                    (SIZE (1..ub-generation-qualifier-length))
                    OPTIONAL }

teletex-organizational-unit-names INTEGER ::= 5

TeletexOrganizationalUnitNames ::= SEQUENCE SIZE
      (1..ub-organizational-units) OF TeletexOrganizationalUnitName

TeletexOrganizationalUnitName ::= TeletexString
                  (SIZE (1..ub-organizational-unit-name-length))

pds-name INTEGER ::= 7

PDSName ::= PrintableString (SIZE (1..ub-pds-name-length))

physical-delivery-country-name INTEGER ::= 8

PhysicalDeliveryCountryName ::= CHOICE {
   x121-dcc-code NumericString (SIZE (ub-country-name-numeric-length)),
   iso-3166-alpha2-code PrintableString
                               (SIZE (ub-country-name-alpha-length)) }

postal-code INTEGER ::= 9

PostalCode ::= CHOICE {
   numeric-code   NumericString (SIZE (1..ub-postal-code-length)),
   printable-code PrintableString (SIZE (1..ub-postal-code-length)) }

physical-delivery-office-name INTEGER ::= 10

PhysicalDeliveryOfficeName ::= PDSParameter

physical-delivery-office-number INTEGER ::= 11

PhysicalDeliveryOfficeNumber ::= PDSParameter

extension-OR-address-components INTEGER ::= 12

ExtensionORAddressComponents ::= PDSParameter

physical-delivery-personal-name INTEGER ::= 13

PhysicalDeliveryPersonalName ::= PDSParameter

physical-delivery-organization-name INTEGER ::= 14

PhysicalDeliveryOrganizationName ::= PDSParameter

extension-physical-delivery-address-components INTEGER ::= 15

ExtensionPhysicalDeliveryAddressComponents ::= PDSParameter

unformatted-postal-address INTEGER ::= 16

UnformattedPostalAddress ::= SET {
   printable-address SEQUENCE SIZE (1..ub-pds-physical-address-lines)
        OF PrintableString (SIZE (1..ub-pds-parameter-length)) OPTIONAL,
   teletex-string TeletexString
        (SIZE (1..ub-unformatted-address-length)) OPTIONAL }

street-address INTEGER ::= 17

StreetAddress ::= PDSParameter

post-office-box-address INTEGER ::= 18

PostOfficeBoxAddress ::= PDSParameter

poste-restante-address INTEGER ::= 19

PosteRestanteAddress ::= PDSParameter

unique-postal-name INTEGER ::= 20

UniquePostalName ::= PDSParameter

local-postal-attributes INTEGER ::= 21

LocalPostalAttributes ::= PDSParameter

PDSParameter ::= SET {
   printable-string PrintableString
                (SIZE(1..ub-pds-parameter-length)) OPTIONAL,
   teletex-string TeletexString
                (SIZE(1..ub-pds-parameter-length)) OPTIONAL }

extended-network-address INTEGER ::= 22

ExtendedNetworkAddress ::= CHOICE {
   e163-4-address SEQUENCE {
      number      [0] IMPLICIT NumericString
                       (SIZE (1..ub-e163-4-number-length)),
      sub-address [1] IMPLICIT NumericString
                       (SIZE (1..ub-e163-4-sub-address-length))
                       OPTIONAL },
   psap-address   [0] IMPLICIT PresentationAddress }

PresentationAddress ::= SEQUENCE {
    pSelector     [0] EXPLICIT OCTET STRING OPTIONAL,
    sSelector     [1] EXPLICIT OCTET STRING OPTIONAL,
    tSelector     [2] EXPLICIT OCTET STRING OPTIONAL,
    nAddresses    [3] EXPLICIT SET SIZE (1..MAX) OF OCTET STRING }

terminal-type  INTEGER ::= 23

TerminalType ::= INTEGER {
   telex        (3),
   teletex      (4),
   g3-facsimile (5),
   g4-facsimile (6),
   ia5-terminal (7),
   videotex     (8) } (0..ub-integer-options)

-- Extension Domain-defined Attributes

teletex-domain-defined-attributes INTEGER ::= 6

TeletexDomainDefinedAttributes ::= SEQUENCE SIZE
   (1..ub-domain-defined-attributes) OF TeletexDomainDefinedAttribute

TeletexDomainDefinedAttribute ::= SEQUENCE {
        type TeletexString
               (SIZE (1..ub-domain-defined-attribute-type-length)),
        value TeletexString
               (SIZE (1..ub-domain-defined-attribute-value-length)) }

--  specifications of Upper Bounds MUST be regarded as mandatory
--  from Annex B of ITU-T X.411 Reference Definition of MTS Parameter
--  Upper Bounds

-- Upper Bounds
ub-name INTEGER ::= 32768
ub-common-name INTEGER ::= 64
ub-locality-name INTEGER ::= 128
ub-state-name INTEGER ::= 128
ub-organization-name INTEGER ::= 64
ub-organizational-unit-name INTEGER ::= 64
ub-title INTEGER ::= 64
ub-serial-number INTEGER ::= 64
ub-match INTEGER ::= 128
ub-emailaddress-length INTEGER ::= 255
ub-common-name-length INTEGER ::= 64
ub-country-name-alpha-length INTEGER ::= 2
ub-country-name-numeric-length INTEGER ::= 3
ub-domain-defined-attributes INTEGER ::= 4
ub-domain-defined-attribute-type-length INTEGER ::= 8
ub-domain-defined-attribute-value-length INTEGER ::= 128
ub-domain-name-length INTEGER ::= 16
ub-extension-attributes INTEGER ::= 256
ub-e163-4-number-length INTEGER ::= 15
ub-e163-4-sub-address-length INTEGER ::= 40
ub-generation-qualifier-length INTEGER ::= 3
ub-given-name-length INTEGER ::= 16
ub-initials-length INTEGER ::= 5
ub-integer-options INTEGER ::= 256
ub-numeric-user-id-length INTEGER ::= 32
ub-organization-name-length INTEGER ::= 64
ub-organizational-unit-name-length INTEGER ::= 32
ub-organizational-units INTEGER ::= 4
ub-pds-name-length INTEGER ::= 16
ub-pds-parameter-length INTEGER ::= 30
ub-pds-physical-address-lines INTEGER ::= 6
ub-postal-code-length INTEGER ::= 16
ub-pseudonym INTEGER ::= 128
ub-surname-length INTEGER ::= 40
ub-terminal-id-length INTEGER ::= 24
ub-unformatted-address-length INTEGER ::= 180
ub-x121-address-length INTEGER ::= 16

-- Note - upper bounds on string types, such as TeletexString, are
-- measured in characters.  Excepting PrintableString or IA5String, a
-- significantly greater number of octets will be required to hold
-- such a value.  As a minimum, 16 octets, or twice the specified
-- upper bound, whichever is the larger, should be allowed for

-- TeletexString.  For UTF8String or UniversalString at least four
-- times the upper bound should be allowed.

END

A.2.  Implicitly Tagged Module, 1988 Syntax

PKIX1Implicit88 { iso(1) identified-organization(3) dod(6) internet(1)
  security(5) mechanisms(5) pkix(7) id-mod(0) id-pkix1-implicit(19) }

DEFINITIONS IMPLICIT TAGS ::=

BEGIN

-- EXPORTS ALL --

IMPORTS
      id-pe, id-kp, id-qt-unotice, id-qt-cps,
      -- delete following line if "new" types are supported --
      BMPString, UTF8String,  -- end "new" types --
      ORAddress, Name, RelativeDistinguishedName,
      CertificateSerialNumber, Attribute, DirectoryString
      FROM PKIX1Explicit88 { iso(1) identified-organization(3)
            dod(6) internet(1) security(5) mechanisms(5) pkix(7)
            id-mod(0) id-pkix1-explicit(18) };

-- ISO arc for standard certificate and CRL extensions

id-ce OBJECT IDENTIFIER  ::=  {joint-iso-ccitt(2) ds(5) 29}

-- authority key identifier OID and syntax

id-ce-authorityKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 35 }

AuthorityKeyIdentifier ::= SEQUENCE {
    keyIdentifier             [0] KeyIdentifier            OPTIONAL,
    authorityCertIssuer       [1] GeneralNames             OPTIONAL,
    authorityCertSerialNumber [2] CertificateSerialNumber  OPTIONAL }
    -- authorityCertIssuer and authorityCertSerialNumber MUST both
    -- be present or both be absent

KeyIdentifier ::= OCTET STRING

-- subject key identifier OID and syntax

id-ce-subjectKeyIdentifier OBJECT IDENTIFIER ::=  { id-ce 14 }

SubjectKeyIdentifier ::= KeyIdentifier

-- key usage extension OID and syntax

id-ce-keyUsage OBJECT IDENTIFIER ::=  { id-ce 15 }

KeyUsage ::= BIT STRING {
     digitalSignature        (0),
     nonRepudiation          (1),  -- recent editions of X.509 have
                                -- renamed this bit to contentCommitment
     keyEncipherment         (2),
     dataEncipherment        (3),
     keyAgreement            (4),
     keyCertSign             (5),
     cRLSign                 (6),
     encipherOnly            (7),
     decipherOnly            (8) }

-- private key usage period extension OID and syntax

id-ce-privateKeyUsagePeriod OBJECT IDENTIFIER ::=  { id-ce 16 }

PrivateKeyUsagePeriod ::= SEQUENCE {
     notBefore       [0]     GeneralizedTime OPTIONAL,
     notAfter        [1]     GeneralizedTime OPTIONAL }
     -- either notBefore or notAfter MUST be present

-- certificate policies extension OID and syntax

id-ce-certificatePolicies OBJECT IDENTIFIER ::=  { id-ce 32 }

anyPolicy OBJECT IDENTIFIER ::= { id-ce-certificatePolicies 0 }

CertificatePolicies ::= SEQUENCE SIZE (1..MAX) OF PolicyInformation

PolicyInformation ::= SEQUENCE {
     policyIdentifier   CertPolicyId,
     policyQualifiers   SEQUENCE SIZE (1..MAX) OF
             PolicyQualifierInfo OPTIONAL }

CertPolicyId ::= OBJECT IDENTIFIER

PolicyQualifierInfo ::= SEQUENCE {
     policyQualifierId  PolicyQualifierId,
     qualifier          ANY DEFINED BY policyQualifierId }

-- Implementations that recognize additional policy qualifiers MUST
-- augment the following definition for PolicyQualifierId

PolicyQualifierId ::= OBJECT IDENTIFIER ( id-qt-cps | id-qt-unotice )

-- CPS pointer qualifier

CPSuri ::= IA5String

-- user notice qualifier

UserNotice ::= SEQUENCE {
     noticeRef        NoticeReference OPTIONAL,
     explicitText     DisplayText OPTIONAL }

NoticeReference ::= SEQUENCE {
     organization     DisplayText,
     noticeNumbers    SEQUENCE OF INTEGER }

DisplayText ::= CHOICE {
     ia5String        IA5String      (SIZE (1..200)),
     visibleString    VisibleString  (SIZE (1..200)),
     bmpString        BMPString      (SIZE (1..200)),
     utf8String       UTF8String     (SIZE (1..200)) }

-- policy mapping extension OID and syntax

id-ce-policyMappings OBJECT IDENTIFIER ::=  { id-ce 33 }

PolicyMappings ::= SEQUENCE SIZE (1..MAX) OF SEQUENCE {
     issuerDomainPolicy      CertPolicyId,
     subjectDomainPolicy     CertPolicyId }

-- subject alternative name extension OID and syntax

id-ce-subjectAltName OBJECT IDENTIFIER ::=  { id-ce 17 }

SubjectAltName ::= GeneralNames

GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName

GeneralName ::= CHOICE {
     otherName                 [0]  AnotherName,
     rfc822Name                [1]  IA5String,
     dNSName                   [2]  IA5String,
     x400Address               [3]  ORAddress,
     directoryName             [4]  Name,
     ediPartyName              [5]  EDIPartyName,
     uniformResourceIdentifier [6]  IA5String,
     iPAddress                 [7]  OCTET STRING,
     registeredID              [8]  OBJECT IDENTIFIER }

-- AnotherName replaces OTHER-NAME ::= TYPE-IDENTIFIER, as
-- TYPE-IDENTIFIER is not supported in the '88 ASN.1 syntax

AnotherName ::= SEQUENCE {
     type-id    OBJECT IDENTIFIER,
     value      [0] EXPLICIT ANY DEFINED BY type-id }

EDIPartyName ::= SEQUENCE {
     nameAssigner              [0]  DirectoryString OPTIONAL,
     partyName                 [1]  DirectoryString }

-- issuer alternative name extension OID and syntax

id-ce-issuerAltName OBJECT IDENTIFIER ::=  { id-ce 18 }

IssuerAltName ::= GeneralNames

id-ce-subjectDirectoryAttributes OBJECT IDENTIFIER ::=  { id-ce 9 }

SubjectDirectoryAttributes ::= SEQUENCE SIZE (1..MAX) OF Attribute

-- basic constraints extension OID and syntax

id-ce-basicConstraints OBJECT IDENTIFIER ::=  { id-ce 19 }

BasicConstraints ::= SEQUENCE {
     cA                      BOOLEAN DEFAULT FALSE,
     pathLenConstraint       INTEGER (0..MAX) OPTIONAL }

-- name constraints extension OID and syntax

id-ce-nameConstraints OBJECT IDENTIFIER ::=  { id-ce 30 }

NameConstraints ::= SEQUENCE {
     permittedSubtrees       [0]     GeneralSubtrees OPTIONAL,
     excludedSubtrees        [1]     GeneralSubtrees OPTIONAL }

GeneralSubtrees ::= SEQUENCE SIZE (1..MAX) OF GeneralSubtree

GeneralSubtree ::= SEQUENCE {
     base                    GeneralName,
     minimum         [0]     BaseDistance DEFAULT 0,
     maximum         [1]     BaseDistance OPTIONAL }

BaseDistance ::= INTEGER (0..MAX)

-- policy constraints extension OID and syntax

id-ce-policyConstraints OBJECT IDENTIFIER ::=  { id-ce 36 }

PolicyConstraints ::= SEQUENCE {
     requireExplicitPolicy   [0]     SkipCerts OPTIONAL,
     inhibitPolicyMapping    [1]     SkipCerts OPTIONAL }

SkipCerts ::= INTEGER (0..MAX)

-- CRL distribution points extension OID and syntax

id-ce-cRLDistributionPoints     OBJECT IDENTIFIER  ::=  {id-ce 31}

CRLDistributionPoints ::= SEQUENCE SIZE (1..MAX) OF DistributionPoint

DistributionPoint ::= SEQUENCE {
     distributionPoint       [0]     DistributionPointName OPTIONAL,
     reasons                 [1]     ReasonFlags OPTIONAL,
     cRLIssuer               [2]     GeneralNames OPTIONAL }

DistributionPointName ::= CHOICE {
     fullName                [0]     GeneralNames,
     nameRelativeToCRLIssuer [1]     RelativeDistinguishedName }

ReasonFlags ::= BIT STRING {
     unused                  (0),
     keyCompromise           (1),
     cACompromise            (2),
     affiliationChanged      (3),
     superseded              (4),
     cessationOfOperation    (5),
     certificateHold         (6),
     privilegeWithdrawn      (7),
     aACompromise            (8) }

-- extended key usage extension OID and syntax

id-ce-extKeyUsage OBJECT IDENTIFIER ::= {id-ce 37}

ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId

KeyPurposeId ::= OBJECT IDENTIFIER

-- permit unspecified key uses

anyExtendedKeyUsage OBJECT IDENTIFIER ::= { id-ce-extKeyUsage 0 }

-- extended key purpose OIDs

id-kp-serverAuth             OBJECT IDENTIFIER ::= { id-kp 1 }
id-kp-clientAuth             OBJECT IDENTIFIER ::= { id-kp 2 }
id-kp-codeSigning            OBJECT IDENTIFIER ::= { id-kp 3 }
id-kp-emailProtection        OBJECT IDENTIFIER ::= { id-kp 4 }
id-kp-timeStamping           OBJECT IDENTIFIER ::= { id-kp 8 }
id-kp-OCSPSigning            OBJECT IDENTIFIER ::= { id-kp 9 }

-- inhibit any policy OID and syntax

id-ce-inhibitAnyPolicy OBJECT IDENTIFIER ::=  { id-ce 54 }

InhibitAnyPolicy ::= SkipCerts

-- freshest (delta)CRL extension OID and syntax

id-ce-freshestCRL OBJECT IDENTIFIER ::=  { id-ce 46 }

FreshestCRL ::= CRLDistributionPoints

-- authority info access

id-pe-authorityInfoAccess OBJECT IDENTIFIER ::= { id-pe 1 }

AuthorityInfoAccessSyntax  ::=
        SEQUENCE SIZE (1..MAX) OF AccessDescription

AccessDescription  ::=  SEQUENCE {
        accessMethod          OBJECT IDENTIFIER,
        accessLocation        GeneralName  }

-- subject info access

id-pe-subjectInfoAccess OBJECT IDENTIFIER ::= { id-pe 11 }

SubjectInfoAccessSyntax  ::=
        SEQUENCE SIZE (1..MAX) OF AccessDescription

-- CRL number extension OID and syntax

id-ce-cRLNumber OBJECT IDENTIFIER ::= { id-ce 20 }

CRLNumber ::= INTEGER (0..MAX)

-- issuing distribution point extension OID and syntax

id-ce-issuingDistributionPoint OBJECT IDENTIFIER ::= { id-ce 28 }

IssuingDistributionPoint ::= SEQUENCE {
     distributionPoint          [0] DistributionPointName OPTIONAL,
     onlyContainsUserCerts      [1] BOOLEAN DEFAULT FALSE,
     onlyContainsCACerts        [2] BOOLEAN DEFAULT FALSE,
     onlySomeReasons            [3] ReasonFlags OPTIONAL,
     indirectCRL                [4] BOOLEAN DEFAULT FALSE,
     onlyContainsAttributeCerts [5] BOOLEAN DEFAULT FALSE }
     -- at most one of onlyContainsUserCerts, onlyContainsCACerts,
     -- and onlyContainsAttributeCerts may be set to TRUE.

id-ce-deltaCRLIndicator OBJECT IDENTIFIER ::= { id-ce 27 }

BaseCRLNumber ::= CRLNumber

-- reason code extension OID and syntax

id-ce-cRLReasons OBJECT IDENTIFIER ::= { id-ce 21 }

CRLReason ::= ENUMERATED {
     unspecified             (0),
     keyCompromise           (1),
     cACompromise            (2),
     affiliationChanged      (3),
     superseded              (4),
     cessationOfOperation    (5),
     certificateHold         (6),
     removeFromCRL           (8),
     privilegeWithdrawn      (9),
     aACompromise           (10) }

-- certificate issuer CRL entry extension OID and syntax

id-ce-certificateIssuer OBJECT IDENTIFIER ::= { id-ce 29 }

CertificateIssuer ::= GeneralNames

-- hold instruction extension OID and syntax

id-ce-holdInstructionCode OBJECT IDENTIFIER ::= { id-ce 23 }

HoldInstructionCode ::= OBJECT IDENTIFIER

-- ANSI x9 arc holdinstruction arc

holdInstruction OBJECT IDENTIFIER ::=
          {joint-iso-itu-t(2) member-body(2) us(840) x9cm(10040) 2}

-- ANSI X9 holdinstructions

id-holdinstruction-none OBJECT IDENTIFIER  ::=
                                      {holdInstruction 1} -- deprecated

id-holdinstruction-callissuer OBJECT IDENTIFIER ::= {holdInstruction 2}

id-holdinstruction-reject OBJECT IDENTIFIER ::= {holdInstruction 3}

-- invalidity date CRL entry extension OID and syntax

id-ce-invalidityDate OBJECT IDENTIFIER ::= { id-ce 24 }

InvalidityDate ::=  GeneralizedTime

END

Appendix B.  ASN.1 Notes

   CAs MUST force the serialNumber to be a non-negative integer, that
   is, the sign bit in the DER encoding of the INTEGER value MUST be
   zero.  This can be done by adding a leading (leftmost) `00'H octet if
   necessary.  This removes a potential ambiguity in mapping between a
   string of octets and an integer value.

   As noted in Section 4.1.2.2, serial numbers can be expected to
   contain long integers.  Certificate users MUST be able to handle
   serialNumber values up to 20 octets in length.  Conforming CAs MUST
   NOT use serialNumber values longer than 20 octets.

   As noted in Section 5.2.3, CRL numbers can be expected to contain
   long integers.  CRL validators MUST be able to handle cRLNumber
   values up to 20 octets in length.  Conforming CRL issuers MUST NOT
   use cRLNumber values longer than 20 octets.

   The construct "SEQUENCE SIZE (1..MAX) OF" appears in several ASN.1
   constructs.  A valid ASN.1 sequence will have zero or more entries.
   The SIZE (1..MAX) construct constrains the sequence to have at least
   one entry.  MAX indicates that the upper bound is unspecified.
   Implementations are free to choose an upper bound that suits their
   environment.

   The character string type PrintableString supports a very basic Latin
   character set: the lowercase letters 'a' through 'z', uppercase
   letters 'A' through 'Z', the digits '0' through '9', eleven special
   characters ' = ( ) + , - . / : ? and space.

   Implementers should note that the at sign ('@') and underscore ('_')
   characters are not supported by the ASN.1 type PrintableString.
   These characters often appear in Internet addresses.  Such addresses
   MUST be encoded using an ASN.1 type that supports them.  They are
   usually encoded as IA5String in either the emailAddress attribute
   within a distinguished name or the rfc822Name field of GeneralName.
   Conforming implementations MUST NOT encode strings that include
   either the at sign or underscore character as PrintableString.

   The character string type TeletexString is a superset of
   PrintableString.  TeletexString supports a fairly standard (ASCII-
   like) Latin character set: Latin characters with non-spacing accents
   and Japanese characters.

   Named bit lists are BIT STRINGs where the values have been assigned
   names.  This specification makes use of named bit lists in the
   definitions for the key usage, CRL distribution points, and freshest
   CRL certificate extensions, as well as the freshest CRL and issuing
   distribution point CRL extensions.  When DER encoding a named bit
   list, trailing zeros MUST be omitted.  That is, the encoded value
   ends with the last named bit that is set to one.

   The character string type UniversalString supports any of the
   characters allowed by [ISO10646].  ISO 10646 is the Universal
   multiple-octet coded Character Set (UCS).

   The character string type UTF8String was introduced in the 1997
   version of ASN.1, and UTF8String was added to the list of choices for
   DirectoryString in the 2001 version of [X.520].  UTF8String is a
   universal type and has been assigned tag number 12.  The content of
   UTF8String was defined by RFC 2044 and updated in RFC 2279, which was
   updated in [RFC3629].

   In anticipation of these changes, and in conformance with IETF Best
   Practices codified in [RFC2277], IETF Policy on Character Sets and
   Languages, this document includes UTF8String as a choice in
   DirectoryString and in the userNotice certificate policy qualifier.

   For many of the attribute types defined in [X.520], the
   AttributeValue uses the DirectoryString type.  Of the attributes
   specified in Appendix A, the name, surname, givenName, initials,
   generationQualifier, commonName, localityName, stateOrProvinceName,
   organizationName, organizationalUnitName, title, and pseudonym
   attributes all use the DirectoryString type.  X.520 uses a
   parameterized type definition [X.683] of DirectoryString to specify
   the syntax for each of these attributes.  The parameter is used to
   indicate the maximum string length allowed for the attribute.  In
   Appendix A, in order to avoid the use of parameterized type
   definitions, the DirectoryString type is written in its expanded form
   for the definition of each of these attribute types.  So, the ASN.1
   in Appendix A describes the syntax for each of these attributes as
   being a CHOICE of TeletexString, PrintableString, UniversalString,
   UTF8String, and BMPString, with the appropriate constraints on the
   string length applied to each of the types in the CHOICE, rather than
   using the ASN.1 type DirectoryString to describe the syntax.

   Implementers should note that the DER encoding of the SET OF values
   requires ordering of the encodings of the values.  In particular,
   this issue arises with respect to distinguished names.

   Implementers should note that the DER encoding of SET or SEQUENCE
   components whose value is the DEFAULT omit the component from the
   encoded certificate or CRL.  For example, a BasicConstraints
   extension whose cA value is FALSE would omit the cA boolean from the
   encoded certificate.

   Object Identifiers (OIDs) are used throughout this specification to
   identify certificate policies, public key and signature algorithms,
   certificate extensions, etc.  There is no maximum size for OIDs.
   This specification mandates support for OIDs that have arc elements
   with values that are less than 2^28, that is, they MUST be between 0
   and 268,435,455, inclusive.  This allows each arc element to be
   represented within a single 32-bit word.  Implementations MUST also
   support OIDs where the length of the dotted decimal (see Section 1.4
   of [RFC4512]) string representation can be up to 100 bytes
   (inclusive).  Implementations MUST be able to handle OIDs with up to
   20 elements (inclusive).  CAs SHOULD NOT issue certificates that
   contain OIDs that exceed these requirements.  Likewise, CRL issuers
   SHOULD NOT issue CRLs that contain OIDs that exceed these
   requirements.

   The content-specific rules for encoding GeneralName field values in
   the nameConstraints extension differ from rules that apply in other
   extensions.  In all other certificate, CRL, and CRL entry extensions
   specified in this document the encoding rules conform to the rules
   for the underlying type.  For example, values in the
   uniformResourceIdentifier field must contain a valid URI as specified
   in [RFC3986].  The content-specific rules for encoding values in the
   nameConstraints extension are specified in Section 4.2.1.10, and
   these rules may not conform to the rules for the underlying type.
   For example, when the uniformResourceIdentifier field appears in a
   nameConstraints extension, it must hold a DNS name (e.g.,
   "host.example.com" or ".example.com") rather than a URI.

   Implementors are warned that the X.500 standards community has
   developed a series of extensibility rules.  These rules determine
   when an ASN.1 definition can be changed without assigning a new
   Object Identifier (OID).  For example, at least two extension
   definitions included in [RFC2459], the predecessor to this profile
   document, have different ASN.1 definitions in this specification, but
   the same OID is used.  If unknown elements appear within an
   extension, and the extension is not marked as critical, those unknown
   elements ought to be ignored, as follows:

      (a)  ignore all unknown bit name assignments within a bit string;

      (b)  ignore all unknown named numbers in an ENUMERATED type or
           INTEGER type that is being used in the enumerated style,
           provided the number occurs as an optional element of a SET or
           SEQUENCE; and

      (c)  ignore all unknown elements in SETs, at the end of SEQUENCEs,
           or in CHOICEs where the CHOICE is itself an optional element
           of a SET or SEQUENCE.

   If an extension containing unexpected values is marked as critical,
   the implementation MUST reject the certificate or CRL containing the
   unrecognized extension.