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Appendix B. ASN.1 Modules (ASN.1 モジュール)

Appendix B. ASN.1 Modules (ASN.1 モジュール)​

この付録には、OCSP の ASN.1 モジュールが含まれている。付録 B.1 には、[RFC6277] で定義された優先署名アルゴリズム拡張を含む、OCSP のすべての構文要素について 1998 年版の ASN.1 に準拠した ASN.1 モジュールが含まれている。このモジュールは、[RFC2560] の付録 B および [RFC6277] の付録 A.2 のモジュールを置き換える。付録 B.2 には、B.1 に存在するモジュールに対応し、2008 年版の ASN.1 に準拠した ASN.1 モジュールが含まれている。このモジュールは、[RFC5912] のセクション 12 および [RFC6277] の付録 A.1 のモジュールを置き換える。2008 ASN.1 モジュールが提供されているが、PKIX ワーキンググループの方針に従い、付録 B.1 のモジュールが引き続き規範的なモジュールである。

B.1. OCSP in ASN.1 - 1998 Syntax (ASN.1 での OCSP - 1998 構文)​

OCSP-2013-88
      {iso(1) identified-organization(3) dod(6) internet(1)
      security(5) mechanisms(5) pkix(7) id-mod(0)
      id-mod-ocsp-2013-88(81)}

DEFINITIONS EXPLICIT TAGS ::=

BEGIN

IMPORTS

   -- PKIX Certificate Extensions
      AuthorityInfoAccessSyntax, CRLReason, GeneralName
      FROM PKIX1Implicit88 { iso(1) identified-organization(3)
           dod(6) internet(1) security(5) mechanisms(5) pkix(7)
           id-mod(0) id-pkix1-implicit(19) }

      Name, CertificateSerialNumber, Extensions,
      id-kp, id-ad-ocsp, Certificate, AlgorithmIdentifier
      FROM PKIX1Explicit88 { iso(1) identified-organization(3)
           dod(6) internet(1) security(5) mechanisms(5) pkix(7)
           id-mod(0) id-pkix1-explicit(18) };

OCSPRequest ::= SEQUENCE {
   tbsRequest              TBSRequest,
   optionalSignature   [0] EXPLICIT Signature OPTIONAL }

TBSRequest ::= SEQUENCE {
   version             [0] EXPLICIT Version DEFAULT v1,
   requestorName       [1] EXPLICIT GeneralName OPTIONAL,
   requestList             SEQUENCE OF Request,
   requestExtensions   [2] EXPLICIT Extensions OPTIONAL }

Signature ::= SEQUENCE {
   signatureAlgorithm      AlgorithmIdentifier,
   signature               BIT STRING,
   certs               [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }

Version ::= INTEGER { v1(0) }

Request ::= SEQUENCE {
   reqCert                     CertID,
   singleRequestExtensions [0] EXPLICIT Extensions OPTIONAL }

CertID ::= SEQUENCE {
   hashAlgorithm           AlgorithmIdentifier,
   issuerNameHash          OCTET STRING, -- Hash of issuer's DN
   issuerKeyHash           OCTET STRING, -- Hash of issuer's public key
   serialNumber            CertificateSerialNumber }

OCSPResponse ::= SEQUENCE {
   responseStatus          OCSPResponseStatus,
   responseBytes       [0] EXPLICIT ResponseBytes OPTIONAL }

OCSPResponseStatus ::= ENUMERATED {
   successful          (0),  -- Response has valid confirmations
   malformedRequest    (1),  -- Illegal confirmation request
   internalError       (2),  -- Internal error in issuer
   tryLater            (3),  -- Try again later
                             -- (4) is not used
   sigRequired         (5),  -- Must sign the request
   unauthorized        (6)   -- Request unauthorized
}

ResponseBytes ::= SEQUENCE {
   responseType            OBJECT IDENTIFIER,
   response                OCTET STRING }

BasicOCSPResponse ::= SEQUENCE {
  tbsResponseData          ResponseData,
  signatureAlgorithm       AlgorithmIdentifier,
  signature                BIT STRING,
  certs                [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }

ResponseData ::= SEQUENCE {
   version             [0] EXPLICIT Version DEFAULT v1,
   responderID             ResponderID,
   producedAt              GeneralizedTime,
   responses               SEQUENCE OF SingleResponse,
   responseExtensions  [1] EXPLICIT Extensions OPTIONAL }

ResponderID ::= CHOICE {
   byName              [1] Name,
   byKey               [2] KeyHash }

KeyHash ::= OCTET STRING -- SHA-1 hash of responder's public key
                         -- (i.e., the SHA-1 hash of the value of the
                         -- BIT STRING subjectPublicKey [excluding
                         -- the tag, length, and number of unused
                         -- bits] in the responder's certificate)

SingleResponse ::= SEQUENCE {
   certID                  CertID,
   certStatus              CertStatus,
   thisUpdate              GeneralizedTime,
   nextUpdate          [0] EXPLICIT GeneralizedTime OPTIONAL,
   singleExtensions    [1] EXPLICIT Extensions OPTIONAL }

CertStatus ::= CHOICE {
   good                [0] IMPLICIT NULL,
   revoked             [1] IMPLICIT RevokedInfo,
   unknown             [2] IMPLICIT UnknownInfo }

RevokedInfo ::= SEQUENCE {
   revocationTime          GeneralizedTime,
   revocationReason    [0] EXPLICIT CRLReason OPTIONAL }

UnknownInfo ::= NULL

ArchiveCutoff ::= GeneralizedTime

AcceptableResponses ::= SEQUENCE OF OBJECT IDENTIFIER

ServiceLocator ::= SEQUENCE {
   issuer                  Name,
   locator                 AuthorityInfoAccessSyntax }

CrlID ::= SEQUENCE {
    crlUrl               [0]     EXPLICIT IA5String OPTIONAL,
    crlNum               [1]     EXPLICIT INTEGER OPTIONAL,
    crlTime              [2]     EXPLICIT GeneralizedTime OPTIONAL }

PreferredSignatureAlgorithms ::= SEQUENCE OF PreferredSignatureAlgorithm

PreferredSignatureAlgorithm ::= SEQUENCE {
   sigIdentifier   AlgorithmIdentifier,
   certIdentifier  AlgorithmIdentifier OPTIONAL }

-- Object Identifiers

id-kp-OCSPSigning            OBJECT IDENTIFIER ::= { id-kp 9 }
id-pkix-ocsp                 OBJECT IDENTIFIER ::= { id-ad-ocsp }
id-pkix-ocsp-basic           OBJECT IDENTIFIER ::= { id-pkix-ocsp 1 }
id-pkix-ocsp-nonce           OBJECT IDENTIFIER ::= { id-pkix-ocsp 2 }
id-pkix-ocsp-crl             OBJECT IDENTIFIER ::= { id-pkix-ocsp 3 }
id-pkix-ocsp-response        OBJECT IDENTIFIER ::= { id-pkix-ocsp 4 }
id-pkix-ocsp-nocheck         OBJECT IDENTIFIER ::= { id-pkix-ocsp 5 }
id-pkix-ocsp-archive-cutoff  OBJECT IDENTIFIER ::= { id-pkix-ocsp 6 }
id-pkix-ocsp-service-locator OBJECT IDENTIFIER ::= { id-pkix-ocsp 7 }
id-pkix-ocsp-pref-sig-algs   OBJECT IDENTIFIER ::= { id-pkix-ocsp 8 }
id-pkix-ocsp-extended-revoke OBJECT IDENTIFIER ::= { id-pkix-ocsp 9 }

END

B.2. OCSP in ASN.1 - 2008 Syntax (ASN.1 での OCSP - 2008 構文)​

OCSP-2013-08
    {iso(1) identified-organization(3) dod(6) internet(1) security(5)
    mechanisms(5) pkix(7) id-mod(0) id-mod-ocsp-2013-08(82)}

DEFINITIONS EXPLICIT TAGS ::=

BEGIN

IMPORTS

Extensions{}, EXTENSION, ATTRIBUTE
FROM PKIX-CommonTypes-2009 -- From [RFC5912]
    {iso(1) identified-organization(3) dod(6) internet(1) security(5)
    mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57)}

AlgorithmIdentifier{}, DIGEST-ALGORITHM, SIGNATURE-ALGORITHM, PUBLIC-KEY
FROM AlgorithmInformation-2009 -- From [RFC5912]
    {iso(1) identified-organization(3) dod(6) internet(1) security(5)
    mechanisms(5) pkix(7) id-mod(0)
    id-mod-algorithmInformation-02(58)}

AuthorityInfoAccessSyntax, GeneralName, CrlEntryExtensions
FROM PKIX1Implicit-2009 -- From [RFC5912]
    {iso(1) identified-organization(3) dod(6) internet(1) security(5)
    mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-implicit-02(59)}

Name, CertificateSerialNumber, id-kp, id-ad-ocsp, Certificate
FROM PKIX1Explicit-2009 -- From [RFC5912]
    {iso(1) identified-organization(3) dod(6) internet(1) security(5)
    mechanisms(5) pkix(7) id-mod(0) id-mod-pkix1-explicit-02(51)}


sa-dsaWithSHA1, sa-rsaWithMD2, sa-rsaWithMD5, sa-rsaWithSHA1
FROM PKIXAlgs-2009 -- From [RFC5912]
    {iso(1) identified-organization(3) dod(6) internet(1) security(5)
    mechanisms(5) pkix(7) id-mod(0)
    id-mod-pkix1-algorithms2008-02(56)};

OCSPRequest     ::=     SEQUENCE {
    tbsRequest                  TBSRequest,
    optionalSignature   [0]     EXPLICIT Signature OPTIONAL }

TBSRequest      ::=     SEQUENCE {
    version             [0] EXPLICIT Version DEFAULT v1,
    requestorName       [1] EXPLICIT GeneralName OPTIONAL,
    requestList             SEQUENCE OF Request,
    requestExtensions   [2] EXPLICIT Extensions {{re-ocsp-nonce |
                     re-ocsp-response, ...,
                     re-ocsp-preferred-signature-algorithms}} OPTIONAL }

Signature       ::=     SEQUENCE {
    signatureAlgorithm   AlgorithmIdentifier
                             { SIGNATURE-ALGORITHM, {...}},
    signature            BIT STRING,
    certs            [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }

Version  ::=  INTEGER  {  v1(0) }

Request ::=     SEQUENCE {
    reqCert                    CertID,
    singleRequestExtensions    [0] EXPLICIT Extensions
                                       { {re-ocsp-service-locator,
                                              ...}} OPTIONAL }

CertID ::= SEQUENCE {
    hashAlgorithm            AlgorithmIdentifier
                                 {DIGEST-ALGORITHM, {...}},
    issuerNameHash     OCTET STRING, -- Hash of issuer's DN
    issuerKeyHash      OCTET STRING, -- Hash of issuer's public key
    serialNumber       CertificateSerialNumber }

OCSPResponse ::= SEQUENCE {
   responseStatus         OCSPResponseStatus,
   responseBytes          [0] EXPLICIT ResponseBytes OPTIONAL }

OCSPResponseStatus ::= ENUMERATED {
    successful            (0), -- Response has valid confirmations
    malformedRequest      (1), -- Illegal confirmation request
    internalError         (2), -- Internal error in issuer
    tryLater              (3), -- Try again later
                               -- (4) is not used
    sigRequired           (5), -- Must sign the request
    unauthorized          (6)  -- Request unauthorized
}

RESPONSE ::= TYPE-IDENTIFIER

ResponseSet RESPONSE ::= {basicResponse, ...}

ResponseBytes ::=       SEQUENCE {
    responseType        RESPONSE.
                            &id ({ResponseSet}),
    response            OCTET STRING (CONTAINING RESPONSE.
                            &Type({ResponseSet}{@responseType}))}

basicResponse RESPONSE ::=
    { BasicOCSPResponse IDENTIFIED BY id-pkix-ocsp-basic }

BasicOCSPResponse       ::= SEQUENCE {
   tbsResponseData      ResponseData,
   signatureAlgorithm   AlgorithmIdentifier{SIGNATURE-ALGORITHM,
                            {sa-dsaWithSHA1 | sa-rsaWithSHA1 |
                                 sa-rsaWithMD5 | sa-rsaWithMD2, ...}},
   signature            BIT STRING,
   certs            [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }

ResponseData ::= SEQUENCE {
   version              [0] EXPLICIT Version DEFAULT v1,
   responderID              ResponderID,
   producedAt               GeneralizedTime,
   responses                SEQUENCE OF SingleResponse,
   responseExtensions   [1] EXPLICIT Extensions
                               {{re-ocsp-nonce, ...,
                                 re-ocsp-extended-revoke}} OPTIONAL }

ResponderID ::= CHOICE {
   byName   [1] Name,
   byKey    [2] KeyHash }

KeyHash ::= OCTET STRING -- SHA-1 hash of responder's public key
                         -- (excluding the tag and length fields)

SingleResponse ::= SEQUENCE {
   certID                       CertID,
   certStatus                   CertStatus,
   thisUpdate                   GeneralizedTime,
   nextUpdate           [0]     EXPLICIT GeneralizedTime OPTIONAL,
   singleExtensions     [1]     EXPLICIT Extensions{{re-ocsp-crl |
                                             re-ocsp-archive-cutoff |
                                             CrlEntryExtensions, ...}
                                             } OPTIONAL }

CertStatus ::= CHOICE {
    good                [0]     IMPLICIT NULL,
    revoked             [1]     IMPLICIT RevokedInfo,
    unknown             [2]     IMPLICIT UnknownInfo }

RevokedInfo ::= SEQUENCE {
    revocationTime              GeneralizedTime,
    revocationReason    [0]     EXPLICIT CRLReason OPTIONAL }

UnknownInfo ::= NULL

ArchiveCutoff ::= GeneralizedTime

AcceptableResponses ::= SEQUENCE OF RESPONSE.&id({ResponseSet})

ServiceLocator ::= SEQUENCE {
    issuer    Name,
    locator   AuthorityInfoAccessSyntax }

CrlID ::= SEQUENCE {
    crlUrl               [0]     EXPLICIT IA5String OPTIONAL,
    crlNum               [1]     EXPLICIT INTEGER OPTIONAL,
    crlTime              [2]     EXPLICIT GeneralizedTime OPTIONAL }

PreferredSignatureAlgorithms ::= SEQUENCE OF PreferredSignatureAlgorithm

PreferredSignatureAlgorithm ::= SEQUENCE {
   sigIdentifier  AlgorithmIdentifier{SIGNATURE-ALGORITHM, {...}},
   certIdentifier AlgorithmIdentifier{PUBLIC-KEY, {...}} OPTIONAL
}

-- Certificate Extensions

ext-ocsp-nocheck EXTENSION ::= { SYNTAX NULL IDENTIFIED
                                 BY id-pkix-ocsp-nocheck }

-- Request Extensions

re-ocsp-nonce EXTENSION ::= { SYNTAX OCTET STRING IDENTIFIED
                              BY id-pkix-ocsp-nonce }

re-ocsp-response EXTENSION ::= { SYNTAX AcceptableResponses IDENTIFIED
                                 BY id-pkix-ocsp-response }

re-ocsp-service-locator EXTENSION ::= { SYNTAX ServiceLocator
                                        IDENTIFIED BY
                                        id-pkix-ocsp-service-locator }

re-ocsp-preferred-signature-algorithms EXTENSION ::= {
   SYNTAX PreferredSignatureAlgorithms
   IDENTIFIED BY id-pkix-ocsp-pref-sig-algs  }

-- Response Extensions

re-ocsp-crl EXTENSION ::= { SYNTAX CrlID IDENTIFIED BY
                                id-pkix-ocsp-crl }

re-ocsp-archive-cutoff EXTENSION ::= { SYNTAX ArchiveCutoff
                                       IDENTIFIED BY
                                       id-pkix-ocsp-archive-cutoff }

re-ocsp-extended-revoke EXTENSION ::= { SYNTAX NULL IDENTIFIED BY
                                        id-pkix-ocsp-extended-revoke }

-- Object Identifiers

id-kp-OCSPSigning            OBJECT IDENTIFIER ::= { id-kp 9 }
id-pkix-ocsp                 OBJECT IDENTIFIER ::= id-ad-ocsp
id-pkix-ocsp-basic           OBJECT IDENTIFIER ::= { id-pkix-ocsp 1 }
id-pkix-ocsp-nonce           OBJECT IDENTIFIER ::= { id-pkix-ocsp 2 }
id-pkix-ocsp-crl             OBJECT IDENTIFIER ::= { id-pkix-ocsp 3 }
id-pkix-ocsp-response        OBJECT IDENTIFIER ::= { id-pkix-ocsp 4 }
id-pkix-ocsp-nocheck         OBJECT IDENTIFIER ::= { id-pkix-ocsp 5 }
id-pkix-ocsp-archive-cutoff  OBJECT IDENTIFIER ::= { id-pkix-ocsp 6 }
id-pkix-ocsp-service-locator OBJECT IDENTIFIER ::= { id-pkix-ocsp 7 }
id-pkix-ocsp-pref-sig-algs   OBJECT IDENTIFIER ::= { id-pkix-ocsp 8 }
id-pkix-ocsp-extended-revoke OBJECT IDENTIFIER ::= { id-pkix-ocsp 9 }

END
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