Network Working Group                                       S. Santesson
Request for Comments: 3039                                      AddTrust
Category: Standards Track                                        W. Polk
                                                                   NIST
                                                              P. Barzin
                                                                 SECUDE
                                                             M. Nystrom
                                                           RSA Security
                                                           January 2001


               Internet X.509 Public Key Infrastructure
                    Qualified Certificates Profile

Status of this Memo

  This document specifies an Internet standards track protocol for the
  Internet community, and requests discussion and suggestions for
  improvements.  Please refer to the current edition of the "Internet
  Official Protocol Standards" (STD 1) for the standardization state
  and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

  Copyright (C) The Internet Society (2001).  All Rights Reserved.

Abstract

  This document forms a certificate profile for Qualified Certificates,
  based on RFC 2459, for use in the Internet.  The term Qualified
  Certificate is used to describe a certificate with a certain
  qualified status within applicable governing law.  Further, Qualified
  Certificates are issued exclusively to physical persons.

  The goal of this document is to define a general syntax independent
  of local legal requirements.  The profile is however designed to
  allow further profiling in order to meet specific local needs.

  It is important to note that the profile does not define any legal
  requirements for Qualified Certificates.

  The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
  "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
  document are to be interpreted as described in RFC 2119.







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RFC 3039             Qualified Certificates Profile         January 2001


Table of Contents

  1  Introduction ................................................    2
  2  Requirements and Assumptions ................................    3
  2.1  Properties ................................................    4
  2.2  Statement of Purpose ......................................    5
  2.3  Policy Issues .............................................    5
  2.4  Uniqueness of names .......................................    5
  3  Certificate and Certificate Extensions Profile ..............    6
  3.1  Basic Certificate Fields ..................................    6
  3.1.1  Issuer ..................................................    6
  3.1.2  Subject .................................................    6
  3.2  Certificate Extensions ....................................    9
  3.2.1  Subject Directory Attributes ............................    9
  3.2.2  Certificate Policies ....................................   10
  3.2.3  Key Usage ...............................................   10
  3.2.4  Biometric Information ...................................   11
  3.2.5  Qualified Certificate Statements ........................   12
  4  Security Considerations .....................................   14
  5  References ..................................................   15
  6  Intellectual Property Rights ................................   16
  A  ASN.1 definitions ...........................................   17
  A.1  1988 ASN.1 Module .........................................   17
  A.2  1993 ASN.1 Module .........................................   19
  B  A Note on Attributes ........................................   24
  C.  Example Certificate ........................................   24
  C.1  ASN.1 Structure ...........................................   25
  C.1.1 Extensions ...............................................   25
  C.1.2 The certificate ..........................................   27
  C.2  ASN.1 Dump ................................................   29
  C.3  DER-encoding ..............................................   32
  C.4  CA's public key ...........................................   33
  Authors' Addresses .............................................   34
  Full Copyright Statement .......................................   35

1  Introduction

  This specification is one part of a family of standards for the X.509
  Public Key Infrastructure (PKI) for the Internet.  It is based on RFC
  2459, which defines underlying certificate formats and semantics
  needed for a full implementation of this standard.

  The standard profiles the format for a specific type of certificates
  named Qualified Certificates.  The term Qualified Certificates and
  the assumptions that affects the scope of this document are discussed
  in Section 2.





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RFC 3039             Qualified Certificates Profile         January 2001


  Section 3 defines requirements on information content in Qualified
  Certificates.  This profile addresses two fields in the basic
  certificate as well as five certificate extensions.  The certificate
  fields are the subject and issuer fields.  The certificate extensions
  are subject directory attributes, certificate policies, key usage, a
  private extension for storage of biometric data and a private
  extension for storage of statements related to Qualified
  Certificates.  The private extensions are presented in the 1993
  Abstract Syntax Notation One (ASN.1), but in conformance with RFC
  2459 the 1988 ASN.1 module in Appendix A contains all normative
  definitions (the 1993 module in Appendix A is informative).

  In Section 4, some security considerations are discussed in order to
  clarify the security context in which Qualified Certificates are
  assumed to be utilized.  Section 5 contains the references.

  Appendix A contains all relevant ASN.1 [X.680] structures that are
  not already defined in RFC 2459.  Appendix B contains a note on
  attributes.  Appendix C contains an example certificate.  Appendix D
  contains authors' addresses and Appendix E contains the IETF
  Copyright Statement.

  It should be noted that this specification does not define the
  specific semantics of Qualified Certificates, and does not define the
  policies that should be used with them.  That is, this document
  defines what information should go into Qualified Certificates, but
  not what that information means.  A system that uses Qualified
  Certificates must define its own semantics for the information in
  Qualified Certificates.  It is expected that laws and corporate
  policies will make these definitions.

2  Requirements and Assumptions

  The term "Qualified Certificate" has been used by the European
  Commission to describe a certain type of certificates with specific
  relevance for European legislation.  This specification is intended
  to support this class of certificates, but its scope is not limited
  to this application.

  Within this standard the term "Qualified Certificate" is used more
  generally, describing the format for a certificate whose primary
  purpose is identifying a person with high level of assurance in
  public non-repudiation services.  The actual mechanisms that will
  decide whether a certificate should or should not be considered to be
  a "Qualified Certificate" in regard to any legislation are outside
  the scope of this standard.





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RFC 3039             Qualified Certificates Profile         January 2001


  Harmonization in the field of Qualified Certificates is essential
  within several aspects that fall outside the scope of RFC 2459.  The
  most important aspects that affect the scope of this specification
  are:

  -  Definition of names and identity information in order to identify
     the associated subject in a uniform way.

  -  Definition of information which identifies the CA and the
     jurisdiction under which the CA operates when issuing a particular
     certificate.

  -  Definition of key usage extension usage for Qualified
     Certificates.

  -  Definition of information structure for storage of biometric
     information.

  -  Definition of a standardized way to store predefined statements
     with relevance for Qualified Certificates.

  -  Requirements for critical extensions.

2.1  Properties

  A Qualified Certificate as defined in this standard is assumed to
  have the following properties:

  -  The certificate is issued by a CA that makes a public statement
     that the certificate serves the purpose of a Qualified
     Certificate, as discussed in Section 2.2

  -  The certificate indicates a certificate policy consistent with
     liabilities, practices and procedures undertaken by the CA, as
     discussed in 2.3

  -  The certificate is issued to a natural person (living human
     being).

  -  The certificate contains an identity based on a pseudonym or a
     real name of the subject.










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RFC 3039             Qualified Certificates Profile         January 2001


2.2  Statement of Purpose

  For a certificate to serve the purpose of being a Qualified
  Certificate, this profile assumes that the CA will have to include in
  the certificate information that explicitly defines this intent.

  The function of this information is thus to assist any concerned
  entity in evaluating the risk associated with creating or accepting
  signatures that are based on a Qualified Certificate.

  This profile defines two complementary ways to include this
  information:

  -  As information defined by a certificate policy included in the
     certificate policies extension, and

  -  As a statement included in the Qualified Certificates Statements
     extension.

2.3  Policy Issues

  Certain policy aspects define the context in which this profile is to
  be understood and used.  It is however outside the scope of this
  profile to specify any policies or legal aspects that will govern
  services that issue or utilize certificates according to this
  profile.

  It is however assumed that the issuing CA will undertake to follow a
  publicly available certificate policy that is consistent with its
  liabilities, practices and procedures.

2.4  Uniqueness of names

  Distinguished name is originally defined in X.501 [X.501] as a
  representation of a directory name, defined as a construct that
  identifies a particular object from among the set of all objects.  An
  object can be assigned a distinguished name without being represented
  by an entry in the Directory, but this name is then the name its
  object entry could have had if it were represented in the Directory.
  In the context of qualified certificates, a distinguished name
  denotes a set of attribute values [X.501] which forms a name that is
  unambiguous within a certain domain that forms either a real or a
  virtual DIT (Directory Information Tree)[X.501].  In the case of
  subject names the domain is assumed to be at least the issuing domain
  of the CA.  The distinguished name MUST be unique for each subject
  entity certified by the one CA as defined by the issuer name field,
  during the whole life time of the CA.




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RFC 3039             Qualified Certificates Profile         January 2001


3  Certificate and Certificate Extensions Profile

  This section defines a profile for Qualified Certificates.  The
  profile is based on the Internet certificate profile RFC 2459 which
  in turn is based on the X.509 version 3 format.  For full
  implementation of this section implementers are REQUIRED to consult
  the underlying formats and semantics defined in RFC 2459.

  ASN.1 definitions relevant for this section that are not supplied by
  RFC 2459 are supplied in Appendix A.

3.1  Basic Certificate Fields

  This specification provides additional details regarding the contents
  of two fields in the basic certificate.  These fields are the issuer
  and subject fields.

3.1.1  Issuer

  The issuer field SHALL identify the organization responsible for
  issuing the certificate.  The name SHOULD be an officially registered
  name of the organization.

  The identity of the issuer SHALL be specified using an appropriate
  subset of the following attributes:

        domainComponent;
        countryName;
        stateOrProvinceName;
        organizationName;
        localityName; and
        serialNumber.

  Additional attributes MAY be present but they SHOULD NOT be necessary
  to identify the issuing organization.

  Attributes present in the issuer field SHOULD be consistent with the
  laws under which the issuer operates.

  A relying party MAY have to consult associated certificate policies
  and/or the issuer's CPS, in order to determine the semantics of name
  fields and the laws under which the issuer operates.

3.1.2  Subject

  The subject field of a certificate compliant with this profile SHALL
  contain a distinguished name of the subject (see 2.4 for definition
  of distinguished name).



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RFC 3039             Qualified Certificates Profile         January 2001


  The subject field SHALL contain an appropriate subset of the
  following attributes:

     countryName;
     commonName;
     surname;
     givenName;
     pseudonym;
     serialNumber;
     organizationName;
     organizationalUnitName;
     stateOrProvinceName
     localityName and
     postalAddress.

  Other attributes may be present but MUST NOT be necessary to
  distinguish the subject name from other subject names within the
  issuer domain.

  Of these attributes, the subject field SHALL include at least one of
  the following:

     Choice   I:  commonName
     Choice  II:  givenName
     Choice III:  pseudonym

  The countryName attribute value specifies a general context in which
  other attributes are to be understood.  The country attribute does
  not necessarily indicate the subject's country of citizenship or
  country of residence, nor does it have to indicate the country of
  issuance.

  Note: Many X.500 implementations require the presence of countryName
  in the DIT.  In cases where the subject name, as specified in the
  subject field, specifies a public X.500 directory entry, the
  countryName attribute SHOULD always be present.

  The commonName attribute value SHALL, when present, contain a name of
  the subject.  This MAY be in the subject's preferred presentation
  format, or a format preferred by the CA, or some other format.
  Pseudonyms, nicknames and names with spelling other than defined by
  the registered name MAY be used.  To understand the nature of the
  name presented in commonName, complying applications MAY have to
  examine present values of the givenName and surname attributes, or
  the pseudonym attribute.






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RFC 3039             Qualified Certificates Profile         January 2001


  Note: Many client implementations presuppose the presence of the
  commonName attribute value in the subject field and use this value to
  display the subject's name regardless of present givenName, surname
  or pseudonym attribute values.

  The surname and givenName attribute types SHALL, if present, contain
  the registered name of the subject, in accordance with the laws under
  which the CA prepares the certificate.  These attributes SHALL be
  used in the subject field if the commonName attribute is not present.
  In cases where the subject only has a single name registered, the
  givenName attribute SHALL be used and the surname attribute SHALL be
  omitted.

  The pseudonym attribute type SHALL, if present, contain a pseudonym
  of the subject.  Use of the pseudonym attribute MUST NOT be combined
  with use of any of the attributes surname and/or givenName.

  The serialNumber attribute type SHALL, when present, be used to
  differentiate between names where the subject field would otherwise
  be identical.  This attribute has no defined semantics beyond
  ensuring uniqueness of subject names.  It MAY contain a number or
  code assigned by the CA or an identifier assigned by a government or
  civil authority.  It is the CA's responsibility to ensure that the
  serialNumber is sufficient to resolve any subject name collisions.

  The organizationName and the organizationalUnitName attribute types
  SHALL, when present, be used to store the name and relevant
  information of an organization with which the subject is associated.
  The type of association between the organization and the subject is
  beyond the scope of this document.

  The postalAddress, the stateOrProvinceName and the localityName
  attribute types SHALL, when present, be used to store address and
  geographical information with which the subject is associated.  If an
  organizationName value also is present then the postalAddress,
  stateOrProvinceName and localityName attribute values SHALL be
  associated with the specified organization.  The type of association
  between the postalAddress, stateOrProvinceName and the localityName
  and either the subject or the organizationName is beyond the scope of
  this document.

  Compliant implementations SHALL be able to interpret the attributes
  named in this section.








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RFC 3039             Qualified Certificates Profile         January 2001


3.2  Certificate Extensions

  This specification provides additional details regarding the contents
  of five certificate extensions.  These extensions are the subject
  directory attributes, certificate policies, key usage, private
  extension for biometric information and private extension for
  Qualified Certificate statements.

3.2.1  Subject Directory Attributes

  The subjectDirectoryAttributes extension MAY contain additional
  attributes, associated with the subject, as complement to present
  information in the subject field and the subject alternative name
  extension.

  Attributes suitable for storage in this extension are attributes,
  which are not part of the subject's distinguished name, but which MAY
  still be useful for other purposes (e.g., authorization).

  This extension MUST NOT be marked critical.

  Compliant implementations SHALL be able to interpret the following
  attributes:

     title;
     dateOfBirth;
     placeOfBirth;
     gender;
     countryOfCitizenship; and
     countryOfResidence.

  Other attributes MAY be included according to local definitions.

  The title attribute type SHALL, when present, be used to store a
  designated position or function of the subject within the
  organization specified by present organizational attributes in the
  subject field.  The association between the title, the subject and
  the organization is beyond the scope of this document.

  The dateOfBirth attribute SHALL, when present, contain the value of
  the date of birth of the subject.  The manner in which the date of
  birth is associated with the subject is outside the scope of this
  document.

  The placeOfBirth attribute SHALL, when present, contain the value of
  the place of birth of the subject.  The manner in which the place of
  birth is associated with the subject is outside the scope of this
  document.



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RFC 3039             Qualified Certificates Profile         January 2001


  The gender attribute SHALL, when present, contain the value of the
  gender of the subject.  For females the value "F" (or "f") and for
  males the value "M" (or "m") have to be used.  The manner in which
  the gender is associated with the subject is outside the scope of
  this document.

  The countryOfCitizenship attribute SHALL, when present, contain the
  identifier of at least one of the subject's claimed countries of
  citizenship at the time that the certificate was issued.  If the
  subject is a citizen of more than one country, more than one country
  MAY be present.  Determination of citizenship is a matter of law and
  is outside the scope of this document.

  The countryOfResidence attribute SHALL, when present, contain the
  value of at least one country in which the subject is resident.  If
  the subject is a resident of more than one country, more than one
  country MAY be present.  Determination of residence is a matter of
  law and is outside the scope of this document.

3.2.2 Certificate Policies

  The certificate policies extension SHALL contain the identifier of at
  least one certificate policy which reflects the practices and
  procedures undertaken by the CA.  The certificate policy extension
  MAY be marked critical.

  Information provided by the issuer stating the purpose of the
  certificate as discussed in Section 2.2 SHOULD be evident through
  indicated policies.

  The certificate policies extension SHOULD include all policy
  information needed for validation of the certificate.  If policy
  information is included in the QCStatements extension (see 3.2.5),
  then this information SHOULD also be defined by indicated policies.

  Certificate policies MAY be combined with any qualifier defined in
  RFC 2459.

3.2.3  Key Usage

  The key usage extension SHALL be present.  If the key usage
  nonRepudiation bit is asserted then it SHOULD NOT be combined with
  any other key usage , i.e., if set, the key usage non-repudiation
  SHOULD be set exclusively.

  The key usage extension MAY be marked critical.





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RFC 3039             Qualified Certificates Profile         January 2001


3.2.4  Biometric Information

  This section defines an extension for storage of biometric
  information.  Biometric information is stored in the form of a hash
  of a biometric template.

  The purpose of this extension is to provide means for authentication
  of biometric information.  The biometric information that corresponds
  to the stored hash is not stored in this extension, but the extension
  MAY include an URI pointing to a location where this information can
  be obtained.  If included, this URI does not imply that this is the
  only way to access this information.

  It is RECOMMENDED that biometric information in this extension is
  limited to information types suitable for human verification, i.e.,
  where the decision of whether the information is an accurate
  representation of the subject is naturally performed by a person.
  This implies a usage where the biometric information is represented
  by, for example, a graphical image displayed to the relying party,
  which MAY be used by the relying party to enhance identification of
  the subject.

  This extension MUST NOT be marked critical.

     biometricInfo  EXTENSION ::= {
         SYNTAX             BiometricSyntax
         IDENTIFIED BY      id-pe-biometricInfo }

     id-pe-biometricInfo OBJECT IDENTIFIER  ::= {id-pe 2}

     BiometricSyntax ::= SEQUENCE OF BiometricData

     BiometricData ::= SEQUENCE {
         typeOfBiometricData  TypeOfBiometricData,
         hashAlgorithm        AlgorithmIdentifier,
         biometricDataHash    OCTET STRING,
         sourceDataUri        IA5String OPTIONAL }

     TypeOfBiometricData ::= CHOICE {
         predefinedBiometricType    PredefinedBiometricType,
         biometricDataID            OBJECT IDENTIFIER }

     PredefinedBiometricType ::= INTEGER { picture(0),
         handwritten-signature(1)} (picture|handwritten-signature,...)







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RFC 3039             Qualified Certificates Profile         January 2001


  The predefined biometric type picture, when present, SHALL identify
  that the source picture is in the form of a displayable graphical
  image of the subject.  The hash of the graphical image SHALL only be
  calculated over the image data excluding any labels defining the
  image type.

  The predefined biometric type handwritten-signature, when present,
  SHALL identify that the source data is in the form of a displayable
  graphical image of the subject's handwritten signature.  The hash of
  the graphical image SHALL only be calculated over the image data
  excluding any labels defining the image type.

3.2.5  Qualified Certificate Statements

  This section defines an extension for inclusion of defined statements
  related to Qualified Certificates.

  A typical statement suitable for inclusion in this extension MAY be a
  statement by the issuer that the certificate is issued as a Qualified
  Certificate in accordance with a particular legal system (as
  discussed in Section 2.2).

  Other statements suitable for inclusion in this extension MAY be
  statements related to the applicable legal jurisdiction within which
  the certificate is issued.  As an example this MAY include a maximum
  reliance limit for the certificate indicating restrictions on CA's
  liability.

  Each statement SHALL include an object identifier for the statement
  and MAY also include optional qualifying data contained in the
  statementInfo parameter.

  If the statementInfo parameter is included then the object identifier
  of the statement SHALL define the syntax and SHOULD define the
  semantics of this parameter.  If the object identifier does not
  define the semantics, a relying party may have to consult a relevant
  certificate policy or CPS to determine the exact semantics.

  This extension may be critical or non-critical.  If the extension is
  critical, this means that all statements included in the extension
  are regarded as critical.

     qcStatements  EXTENSION ::= {
         SYNTAX             QCStatements
         IDENTIFIED BY      id-pe-qcStatements }

     id-pe-qcStatements     OBJECT IDENTIFIER ::= { id-pe 3 }




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RFC 3039             Qualified Certificates Profile         January 2001


     QCStatements ::= SEQUENCE OF QCStatement

     QCStatement ::= SEQUENCE {
         statementId   QC-STATEMENT.&Id({SupportedStatements}),
         statementInfo QC-STATEMENT.&Type
         ({SupportedStatements}{@statementId}) OPTIONAL }

     SupportedStatements QC-STATEMENT ::= { qcStatement-1,...}

3.2.5.1 Predefined Statements

  This profile includes one predefined object identifier (id-qcs-
  pkixQCSyntax-v1), identifying conformance with syntax and semantics
  defined in this profile.  This Qualified Certificate profile is
  referred to as version 1.

     qcStatement-1 QC-STATEMENT ::= { SYNTAX SemanticsInformation
         IDENTIFIED BY id-qcs-pkixQCSyntax-v1 }
     --  This statement identifies conformance with syntax and
     --  semantics defined in this Qualified Certificate profile
     --  (Version 1). The SemanticsInformation may optionally contain
     --  additional semantics information as specified.

     SemanticsInformation ::= SEQUENCE {
         semanticsIdentifier        OBJECT IDENTIFIER   OPTIONAL,
         nameRegistrationAuthorities NameRegistrationAuthorities
                                                         OPTIONAL }
         (WITH COMPONENTS {..., semanticsIdentifier PRESENT}|
          WITH COMPONENTS {..., nameRegistrationAuthorities PRESENT})

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

  The SementicsInformation component identified by id-qcs-
  pkixQCSyntax-v1 MAY contain a semantics identifier and MAY identify
  one or more name registration authorities.

  The semanticsIdentifier component, if present, SHALL contain an OID,
  defining semantics for attributes and names in basic certificate
  fields and certificate extensions.  The OID may define semantics for
  all, or for a subgroup of all present attributes and/or names.

  The NameRegistrationAuthorities component, if present, SHALL contain
  a name of one or more name registration authorities, responsible for
  registration of attributes or names associated with the subject.  The
  association between an identified name registration authority and
  present attributes MAY be defined by a semantics identifier OID, by a
  certificate policy (or CPS) or some other implicit factors.



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RFC 3039             Qualified Certificates Profile         January 2001


  If a value of type SemanticsInformation is present in a QCStatement
  then at least one of the fields semanticsIdentifier and
  nameRegistrationAuthorities must be present, as indicated.

4  Security Considerations

  The legal value of a digital signature that is validated with a
  Qualified Certificate will be highly dependent upon the policy
  governing the use of the associated private key.  Both the private
  key holder as well as the relying party should make sure that the
  private key is used only with the consent of the legitimate key
  holder.

  Since the public keys are for public use with legal implications for
  involved parties, certain conditions should exist before CAs issue
  certificates as Qualified Certificates.  The associated private keys
  must be unique for the subject, and must be maintained under the
  subject's sole control.  That is, a CA should not issue a qualified
  certificate if the means to use the private key is not protected
  against unintended usage.  This implies that the CA have some
  knowledge about the subject's cryptographic module.

  The CA must further verify that the public key contained in the
  certificate is legitimately representing the subject.

  CAs should not issue CA certificates with policy mapping extensions
  indicating acceptance of another CA's policy unless these conditions
  are met.

  Combining the nonRepudiation bit in the keyUsage certificate
  extension with other keyUsage bits may have security implications and
  this specification therefore recommends against such practices.

  The ability to compare two qualified certificates to determine if
  they represent the same physical entity is dependent on the semantics
  of the subjects' names.  The semantics of a particular attribute may
  be different for different issuers.  Comparing names without
  knowledge of the semantics of names in these particular certificates
  may provide misleading results.

  This specification is a profile of RFC 2459.  The security
  considerations section of that document applies to this specification
  as well.








Santesson, et al.           Standards Track                    [Page 14]

RFC 3039             Qualified Certificates Profile         January 2001


5 References

  [RFC 2119] Bradner, S., "Key words for use in RFCs to Indicate
             Requirement Levels", BCP 14, RFC 2119, March 1997.

  [RFC 2247] Kille, S., Wahl, M., Grimstad, A., Huber, R. and S.
             Sataluri, "Using Domains in LDAP/X.500 Distinguished
             Names", RFC 2247, January 1998.

  [RFC 2459] Housley, R., Ford, W., Polk, W. and D. Solo, "Internet
             X.509 Public Key Infrastructure: Certificate and CRL
             Profile", RFC 2459, January 1999.

  [RFC 2985] Nystrom, M. and B. Kaliski, "PKCS #9: Selected Object
             Classes and Attribute Types Version 2.0", RFC 2985,
             November 2000.

  [X.501]    ITU-T Recommendation X.501: Information Technology - Open
             Systems Interconnection - The Directory: Models, June
             1993.

  [X.509]    ITU-T Recommendation X.509: Information Technology - Open
             Systems Interconnection - The Directory: Authentication
             Framework, June 1997.

  [X.520]    ITU-T Recommendation X.520: Information Technology - Open
             Systems Interconnection - The Directory: Selected
             Attribute Types, June 1993.

  [X.680]    ITU-T Recommendation X.680: Information Technology -
             Abstract Syntax Notation One, 1997.

  [ISO 3166] ISO Standard 3166: Codes for the representation of names
             of countries, 1993.

















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RFC 3039             Qualified Certificates Profile         January 2001


6 Intellectual Property Rights

  The IETF takes no position regarding the validity or scope of any
  intellectual property or other rights that might be claimed to
  pertain to the implementation or use of the technology described in
  this document or the extent to which any license under such rights
  might or might not be available; neither does it represent that it
  has made any effort to identify any such rights.  Information on the
  IETF's procedures with respect to rights in standards-track and
  standards related documentation can be found in BCP-11.  Copies of
  claims of rights made available for publication and any assurances of
  licenses to be made available, or the result of an attempt made to
  obtain a general license or permission for the use of such
  proprietary rights by implementors or users of this specification can
  be obtained from the IETF Secretariat.

  The IETF invites any interested party to bring to its attention any
  copyrights, patents or patent applications, or other proprietary
  rights which may cover technology that may be required to practice
  this standard.  Please address the information to the IETF Executive
  Director.






























Santesson, et al.           Standards Track                    [Page 16]

RFC 3039             Qualified Certificates Profile         January 2001


A. ASN.1 definitions

  As in RFC 2459, ASN.1 modules are supplied in two different variants
  of the ASN.1 syntax.

  Appendix A.1 is in the 1988 syntax, and does not use macros.
  However, since the module imports type definitions from modules in
  RFC 2459 which are not completely in the 1988 syntax, the same
  comments as in RFC 2459 regarding its use applies here as well; i.e.,
  Appendix A.1 may be parsed by an 1988 ASN.1-parser by removing the
  definitions for the UNIVERSAL types and all references to them in RFC
  2459's 1988 modules.

  Appendix A.2 is in the 1993 syntax.  However, since the module
  imports type definitions from modules in RFC 2459 which are not
  completely in the 1993 syntax, the same comments as in RFC 2459
  regarding its use applies here as well; i.e., Appendix A.2 may be
  parsed by an 1993 ASN.1-parser by removing the UTF8String choice from
  the definition of DirectoryString in the module PKIX1Explicit93 in
  RFC 2459.  Appendix A.2 may be parsed "as is" by an 1997 ASN.1
  parser, however.

  In case of discrepancies between these modules, the 1988 module is
  the normative one.

A.1 1988 ASN.1 Module

PKIXqualified88 {iso(1) identified-organization(3) dod(6)
   internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
   id-mod-qualified-cert-88(10) }

DEFINITIONS EXPLICIT TAGS ::=

BEGIN

-- EXPORTS ALL --

IMPORTS

GeneralName
   FROM PKIX1Implicit88 {iso(1) identified-organization(3) dod(6)
   internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
   id-pkix1-implicit-88(2)}

AlgorithmIdentifier, DirectoryString, Attribute, AttributeType,
   id-pkix, id-pe, id-at
   FROM PKIX1Explicit88 {iso(1) identified-organization(3) dod(6)
   internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)



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RFC 3039             Qualified Certificates Profile         January 2001


   id-pkix1-explicit-88(1)};

-- Locally defined OIDs

-- Arc for QC personal data attributes
id-pda  OBJECT IDENTIFIER ::= { id-pkix 9 }
-- Arc for QC statements
id-qcs  OBJECT IDENTIFIER ::= { id-pkix 11 }

-- Attributes

id-at-serialNumber          AttributeType ::= { id-at 5 }
SerialNumber ::=            PrintableString (SIZE(1..64))

id-at-postalAddress         AttributeType ::= { id-at 16 }
PostalAddress ::=           SEQUENCE SIZE (1..6) OF DirectoryString

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

domainComponent             AttributeType ::=
                           { 0 9 2342 19200300 100 1 25 }
DomainComponent ::=         IA5String

id-pda-dateOfBirth          AttributeType ::= { id-pda 1 }
DateOfBirth ::=             GeneralizedTime

id-pda-placeOfBirth         AttributeType ::= { id-pda 2 }
PlaceOfBirth ::=            DirectoryString

id-pda-gender               AttributeType ::= { id-pda 3 }
Gender ::=                  PrintableString (SIZE(1))
                           -- "M", "F", "m" or "f"

id-pda-countryOfCitizenship AttributeType ::= { id-pda 4 }
CountryOfCitizenship ::=    PrintableString (SIZE (2))
                           -- ISO 3166 Country Code

id-pda-countryOfResidence   AttributeType ::= { id-pda 5 }
CountryOfResidence ::=      PrintableString (SIZE (2))
                           -- ISO 3166 Country Code

-- Private extensions

-- Biometric info extension

id-pe-biometricInfo OBJECT IDENTIFIER  ::= {id-pe 2}




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BiometricSyntax ::= SEQUENCE OF BiometricData

BiometricData ::= SEQUENCE {
   typeOfBiometricData  TypeOfBiometricData,
   hashAlgorithm        AlgorithmIdentifier,
   biometricDataHash    OCTET STRING,
   sourceDataUri        IA5String OPTIONAL }

TypeOfBiometricData ::= CHOICE {
   predefinedBiometricType   PredefinedBiometricType,
   biometricDataOid          OBJECT IDENTIFIER }

PredefinedBiometricType ::= INTEGER {
   picture(0),handwritten-signature(1)}
   (picture|handwritten-signature)

-- QC Statements Extension

id-pe-qcStatements OBJECT IDENTIFIER ::= { id-pe 3}

QCStatements ::= SEQUENCE OF QCStatement

QCStatement ::= SEQUENCE {
   statementId        OBJECT IDENTIFIER,
   statementInfo      ANY DEFINED BY statementId OPTIONAL}

-- QC statements
id-qcs-pkixQCSyntax-v1   OBJECT IDENTIFIER ::= { id-qcs 1 }

--  This statement identifies conformance with syntax and
--  semantics defined in this Qualified Certificate profile
--  (Version 1). This statement may optionally contain
--  additional semantics information as specified below.

SemanticsInformation  ::= SEQUENCE {
   semanticsIndentifier        OBJECT IDENTIFIER OPTIONAL,
   nameRegistrationAuthorities NameRegistrationAuthorities OPTIONAL
   } -- At least one field shall be present

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

END

A.2 1993 ASN.1  Module

PKIXqualified93 {iso(1) identified-organization(3) dod(6)
   internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
   id-mod-qualified-cert-93(11) }



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RFC 3039             Qualified Certificates Profile         January 2001


DEFINITIONS EXPLICIT TAGS ::=

BEGIN

-- EXPORTS ALL --

IMPORTS

authorityKeyIdentifier, subjectKeyIdentifier, keyUsage,
   extendedKeyUsage, privateKeyUsagePeriod, certificatePolicies,
   policyMappings, subjectAltName, issuerAltName, basicConstraints,
   nameConstraints, policyConstraints, cRLDistributionPoints,
   subjectDirectoryAttributes, authorityInfoAccess, GeneralName,
   OTHER-NAME
   FROM PKIX1Implicit93 {iso(1) identified-organization(3) dod(6)
   internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
   id-pkix1-implicit-93(4)}

id-pkix, AlgorithmIdentifier, ATTRIBUTE, Extension, EXTENSION,
   DirectoryString{}, ub-name, id-pe, id-at, id-at-commonName,
   id-at-surname, id-at-countryName, id-at-localityName,
   id-at-stateOrProvinceName, id-at-organizationName,
   id-at-organizationalUnitName, id-at-givenName, id-at-dnQualifier,
   pkcs9email, title, organizationName, organizationalUnitName,
   stateOrProvinceName, localityName, countryName,
   generationQualifier, dnQualifier, initials, givenName, surname,
   commonName, name
   FROM PKIX1Explicit93 {iso(1) identified-organization(3) dod(6)
   internet(1) security(5) mechanisms(5) pkix(7) id-mod(0)
   id-pkix1-explicit-93(3)};

-- Object Identifiers

-- Externally defined OIDs
id-at-serialNumber  OBJECT IDENTIFIER ::= { id-at 5}
id-at-postalAddress OBJECT IDENTIFIER ::= { id-at 16 }
id-at-pseudonym     OBJECT IDENTIFIER ::= { id-at 65 }
id-domainComponent  OBJECT IDENTIFIER ::= { 0 9 2342 19200300 100 1 25 }

-- Locally defined OIDs

-- Arc for QC personal data attributes

id-pda  OBJECT IDENTIFIER ::= { id-pkix 9 }
-- Arc for QC statements
id-qcs  OBJECT IDENTIFIER ::= { id-pkix 11 }

-- Private extensions



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RFC 3039             Qualified Certificates Profile         January 2001


id-pe-biometricInfo         OBJECT IDENTIFIER ::= { id-pe 2 }
id-pe-qcStatements          OBJECT IDENTIFIER ::= { id-pe 3 }

-- Personal data attributes
id-pda-dateOfBirth          OBJECT IDENTIFIER ::= { id-pda 1 }
id-pda-placeOfBirth         OBJECT IDENTIFIER ::= { id-pda 2 }
id-pda-gender               OBJECT IDENTIFIER ::= { id-pda 3 }
id-pda-countryOfCitizenship OBJECT IDENTIFIER ::= { id-pda 4 }
id-pda-countryOfResidence   OBJECT IDENTIFIER ::= { id-pda 5 }

-- QC statements
id-qcs-pkixQCSyntax-v1      OBJECT IDENTIFIER ::= { id-qcs 1 }

-- Object Sets

-- The following information object set is defined to constrain the
-- set of legal certificate extensions. Note that this set is an
-- extension of the ExtensionSet defined in RFC 2459.
ExtensionSet EXTENSION ::= {
   authorityKeyIdentifier |
   subjectKeyIdentifier |
   keyUsage |
   extendedKeyUsage |
   privateKeyUsagePeriod |
   certificatePolicies |
   policyMappings |
   subjectAltName |
   issuerAltName |
   basicConstraints |
   nameConstraints |
   policyConstraints |
   cRLDistributionPoints |
   subjectDirectoryAttributes |
   authorityInfoAccess |
   biometricInfo |
   qcStatements, ... }

-- The following information object set is defined to constrain the
-- set of attributes applications are required to recognize in
-- distinguished names. The set may of course be augmented to meet
-- local requirements.  Note that deleting members of the set may
-- prevent interoperability with conforming implementations, and that
-- this set is an extension of the SupportedAttributes set in RFC 2459.

SupportedAttributes ATTRIBUTE ::= {
   countryName | commonName | surname | givenName | pseudonym |
   serialNumber | organizationName | organizationalUnitName |
   stateOrProvinceName | localityName | postalAddress |



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RFC 3039             Qualified Certificates Profile         January 2001


   pkcs9email | domainComponent | dnQualifier,
   ... -- For future extensions -- }

-- The following information object set is defined to constrain the
-- set of attributes applications are required to recognize in
-- subjectDirectoryAttribute extensions. The set may be augmented to
-- meet local requirements.  Note that deleting members of the set
-- may prevent interoperability with conforming implementations.
PersonalDataAttributeSet ATTRIBUTE ::= {
   title | dateOfBirth | placeOfBirth | gender | countryOfCitizenship |
   countryOfResidence, ... }

-- Attributes

-- serialNumber from X.520
serialNumber ATTRIBUTE ::= {
   WITH SYNTAX PrintableString (SIZE(1..64))
   ID          id-at-serialNumber }

-- postalAddress from X.520
postalAddress ATTRIBUTE ::= {
   WITH SYNTAX SEQUENCE SIZE (1..6) OF DirectoryString { 30 }
   ID          id-at-postalAddress }

-- pseudonym from (forthcoming) X.520)
pseudonym ATTRIBUTE ::= {
   WITH SYNTAX DirectoryString { ub-name }
   ID          id-at-pseudonym }

-- domainComponent from RFC 2247
domainComponent ATTRIBUTE ::= {
   WITH SYNTAX IA5String
   ID          id-domainComponent }

dateOfBirth ATTRIBUTE ::= {
   WITH SYNTAX GeneralizedTime
   ID          id-pda-dateOfBirth }

placeOfBirth ATTRIBUTE ::= {
   WITH SYNTAX DirectoryString { ub-name }
   ID          id-pda-placeOfBirth }

gender ATTRIBUTE ::= {
   WITH SYNTAX PrintableString (SIZE(1) ^ FROM("M"|"F"|"m"|"f"))
   ID          id-pda-gender }

countryOfCitizenship ATTRIBUTE ::= {
   WITH SYNTAX PrintableString (SIZE (2))



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       (CONSTRAINED BY { -- ISO 3166 codes only -- })
   ID          id-pda-countryOfCitizenship }

countryOfResidence ATTRIBUTE ::= {
   WITH SYNTAX PrintableString (SIZE (2))
       (CONSTRAINED BY { -- ISO 3166 codes only -- })
   ID          id-pda-countryOfResidence }

-- Private extensions

-- Biometric info extension

biometricInfo  EXTENSION ::= {
   SYNTAX             BiometricSyntax
   IDENTIFIED BY      id-pe-biometricInfo }

BiometricSyntax ::= SEQUENCE OF BiometricData

BiometricData ::= SEQUENCE {
   typeOfBiometricData TypeOfBiometricData,
   hashAlgorithm       AlgorithmIdentifier,
   biometricDataHash   OCTET STRING,
   sourceDataUri       IA5String OPTIONAL,
   ... -- For future extensions -- }

TypeOfBiometricData ::= CHOICE {
   predefinedBiometricType PredefinedBiometricType,
   biometricDataOid        OBJECT IDENTIFIER }

PredefinedBiometricType ::= INTEGER { picture(0),
   handwritten-signature(1)} (picture|handwritten-signature,...)

-- QC Statements Extension

qcStatements  EXTENSION ::= {
   SYNTAX        QCStatements
   IDENTIFIED BY id-pe-qcStatements }

QCStatements ::= SEQUENCE OF QCStatement

QCStatement ::= SEQUENCE {
   statementId   QC-STATEMENT.&id({SupportedStatements}),
   statementInfo QC-STATEMENT.&Type
   ({SupportedStatements}{@statementId}) OPTIONAL }

QC-STATEMENT ::= CLASS {
   &id   OBJECT IDENTIFIER UNIQUE,
   &Type OPTIONAL }



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RFC 3039             Qualified Certificates Profile         January 2001


WITH SYNTAX {
   [SYNTAX &Type] IDENTIFIED BY &id }

qcStatement-1 QC-STATEMENT ::= { SYNTAX SemanticsInformation
   IDENTIFIED BY id-qcs-pkixQCSyntax-v1}
   --  This statement identifies conformance with syntax and
   --  semantics defined in this Qualified Certificate profile
   --  (Version 1). The SemanticsInformation may optionally contain
   --  additional semantics information as specified.

SemanticsInformation ::= SEQUENCE {
   semanticsIdentifier         OBJECT IDENTIFIER OPTIONAL,
   nameRegistrationAuthorities NameRegistrationAuthorities OPTIONAL
   }(WITH COMPONENTS {..., semanticsIdentifier PRESENT}|
     WITH COMPONENTS {..., nameRegistrationAuthorities PRESENT})

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

-- The following information object set is defined to constrain the
-- set of attributes applications are required to recognize as QCSs.
SupportedStatements QC-STATEMENT ::= {
   qcStatement-1, ... -- For future extensions -- }

END

B. A Note on Attributes

  This document defines several new attributes, both for use in the
  subject field of issued certificates and in the
  subjectDirectoryAttributes extension.  In the interest of conformity,
  they have been defined here using the ASN.1 ATTRIBUTE definition from
  RFC 2459, which is sufficient for the purposes of this document, but
  greatly simplified in comparison with ISO/ITU's definition.  A
  complete definition of these new attributes (including matching
  rules), along with object classes to support them in LDAP-accessible
  directories, can be found in [PKCS 9].

C. Example Certificate

  This section contains the ASN.1 structure, an ASN.1 dump, and the
  DER-encoding of a certificate issued in conformance with this
  profile.  The example has been developed with the help of the OSS
  ASN.1 compiler.  The certificate has the following characteristics:

     1.  The certificate is signed with RSA and the SHA-1 hash
         algorithm
     2.  The issuer's distinguished name is O=GMD - Forschungszentrum
         Informationstechnik GmbH; C=DE



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RFC 3039             Qualified Certificates Profile         January 2001


     3.  The subject's distinguished name is CN=Petra M.  Barzin, O=GMD
         - Forschungszentrum Informationstechnik GmbH, C=DE
     4.  The certificate was issued on May 1, 2000 and will expire on
         November 1, 2000
     5.  The certificate contains a 1024 bit RSA key
     6.  The certificate includes a critical key usage extension
         exclusively indicating non-repudiation
     7.  The certificate includes a certificate policy identifier
         extension indicating the practices and procedures undertaken
         by the issuing CA (object identifier 1.3.36.8.1.1).  The
         certificate policy object identifier is defined by TeleTrust,
         Germany.  It is required to be set in a certificate conformant
         to the German digital signature law.
     8.  The certificate includes a subject directory attributes
         extension containing the following attributes:

         surname:               Barzin
         given name:            Petra
         date of birth:         October, 14th 1971
         place of birth:        Darmstadt
         country of citizenship:Germany
         gender:                Female

     9.  The certificate includes a qualified statement private
         extension indicating that the naming registration authority's
         name as "[email protected]".
     10. The certificate includes, in conformance with RFC 2459, an
         authority key identifier extension.

C.1 ASN.1 Structure

C.1.1 Extensions

  Since extensions are DER-encoded already when placed in the structure
  to be signed, they are for clarity shown here in the value notation
  defined in [X.680].

C.1.1.1 The subjectDirectoryAttributes extension

  petrasSubjDirAttrs AttributesSyntax ::= {
      {
          type id-pda-countryOfCitizenship,
          values {
              PrintableString : "DE"
          }
      },
      {
          type id-pda-gender,



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RFC 3039             Qualified Certificates Profile         January 2001


          values {
              PrintableString : "F"
          }
      },
      {
          type id-pda-dateOfBirth,
          values {
              GeneralizedTime : "197110140000Z"
          }
      },
      {
          type id-pda-placeOfBirth,
          values {
              DirectoryString : utf8String : "Darmstadt"
          }
      }
  }

C.1.1.2 The keyUsage extension

  petrasKeyUsage KeyUsage ::= {nonRepudiation}

C.1.1.3 The certificatePolicies extension

  petrasCertificatePolicies CertificatePoliciesSyntax ::= {
      {
          policyIdentifier {1 3 36 8 1 1}
      }
  }

C.1.1.4 The qcStatements extension

  petrasQCStatement QCStatements ::= {
      {
          statementId   id-qcs-pkixQCSyntax-v1,
          statementInfo SemanticsInformation : {
              nameRegistrationAuthorities {
                  rfc822Name : "[email protected]"
              }
         }
      }
  }

C.1.1.5 The authorityKeyIdentifier extension

  petrasAKI AuthorityKeyIdentifier ::= {
      keyIdentifier '000102030405060708090A0B0C0D0E0FFEDCBA98'H
  }



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RFC 3039             Qualified Certificates Profile         January 2001


C.1.2 The certificate

  The signed portion of the certificate is shown here in the value
  notation defined in [X.680].  Note that extension values are already
  DER encoded in this structure.  Some values has been truncated for
  readability purposes.

  {
    version v3,
    serialNumber 1234567890,
    signature
    {
      algorithm { 1 2 840 113549 1 1 5 },
      parameters RSAParams : NULL
    },
    issuer rdnSequence :
      {
        {
          {
            type { 2 5 4 6 },
            value PrintableString : "DE"
          }
        },
        {
          {
            type { 2 5 4 10 },
            value UTF8String :
              "GMD - Forschungszentrum Informationstechnik GmbH"
          }
        }
      },
    validity
    {
      notBefore utcTime : "000501100000Z",
      notAfter utcTime : "001101100000Z"
    },
    subject rdnSequence :
      {
        {
          {
            type { 2 5 4 6 },
            value PrintableString : "DE"
          }
        },
        {
          {
            type { 2 5 4 10 },
            value UTF8String :



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RFC 3039             Qualified Certificates Profile         January 2001


              "GMD Forschungszentrum Informationstechnik GmbH"
          }
        },
        {
          {
            type { 2 5 4 4 },
            value UTF8String : "Barzin"
          },
          {
            type { 2 5 4 42 },
            value UTF8String : "Petra"
          }
        }
      },
    subjectPublicKeyInfo
    {
      algorithm
      {
        algorithm { 1 2 840 113549 1 1 1 },
        parameters RSAParams : NULL
      },
      subjectPublicKey '00110000 10000001 10000111 00000010 1000 ...'B
    },
    extensions
    {
      {
        extnId { 2 5 29 9 },  -- subjectDirectoryAttributes
        extnValue '305B301006082B06010505070904310413024445300F0 ...'H
      },
      {
        extnId { 2 5 29 15 }, -- keyUsage
        critical TRUE,
        extnValue '03020640'H
      },
      {
        extnId { 2 5 29 32 }, -- certificatePolicies
        extnValue '3009300706052B24080101'H
      },
      {
        extnId { 2 5 29 35 }, -- authorityKeyIdentifier
        extnValue '30168014000102030405060708090A0B0C0D0E0FFEDCBA98'H
      },
      {
        extnId { 1 3 6 1 5 5 7 1 3 }, -- qcStatements
        extnValue '302B302906082B06010505070B01301D301B81196D756 ...'H
      }
    }
  }



Santesson, et al.           Standards Track                    [Page 28]

RFC 3039             Qualified Certificates Profile         January 2001


C.2 ASN.1 dump

  This section contains an ASN.1 dump of the signed portion of the
  certificate.  Some values has been truncated for readability
  purposes.

  TBSCertificate SEQUENCE: tag = [UNIVERSAL 16] constructed;
    length = 631
    version : tag = [0] constructed; length = 3
      Version INTEGER: tag = [UNIVERSAL 2] primitive; length = 1
        2
    serialNumber CertificateSerialNumber INTEGER: tag = [UNIVERSAL 2]
      primitive; length = 4
      1234567890
    signature AlgorithmIdentifier SEQUENCE: tag = [UNIVERSAL 16]
      constructed; length = 13
      algorithm OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
        length = 9
        { 1 2 840 113549 1 1 5 }
      parameters OpenType: NULL: tag = [UNIVERSAL 5] primitive;
        length = 0
        NULL
    issuer Name CHOICE
      rdnSequence RDNSequence SEQUENCE OF: tag = [UNIVERSAL 16]
        constructed; length = 72
        RelativeDistinguishedName SET OF: tag = [UNIVERSAL 17]
          constructed; length = 11
          AttributeTypeAndValue SEQUENCE: tag = [UNIVERSAL 16]
            constructed; length = 9
            type OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
              length = 3
              { 2 5 4 6 }
            value OpenType: PrintableString: tag = [UNIVERSAL 19]
              primitive; length = 2
              "DE"
        RelativeDistinguishedName SET OF: tag = [UNIVERSAL 17]
          constructed; length = 57
          AttributeTypeAndValue SEQUENCE: tag = [UNIVERSAL 16]
          constructed; length = 55
            type OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
              length = 3
              { 2 5 4 10 }
            value OpenType : UTF8String: tag = [UNIVERSAL 12]
              primitive; length = 48
              0x474d44202d20466f72736368756e67737a656e7472756d2049...
    validity Validity SEQUENCE: tag = [UNIVERSAL 16] constructed;
      length = 30
      notBefore Time CHOICE



Santesson, et al.           Standards Track                    [Page 29]

RFC 3039             Qualified Certificates Profile         January 2001


        utcTime UTCTime: tag = [UNIVERSAL 23] primitive; length = 13
          000501100000Z
      notAfter Time CHOICE
        utcTime UTCTime: tag = [UNIVERSAL 23] primitive; length = 13
          001101100000Z
    subject Name CHOICE
      rdnSequence RDNSequence SEQUENCE OF: tag = [UNIVERSAL 16]
        constructed; length = 101
        RelativeDistinguishedName SET OF: tag = [UNIVERSAL 17]
          constructed; length = 11
          AttributeTypeAndValue SEQUENCE: tag = [UNIVERSAL 16]
            constructed; length = 9
            type OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
              length = 3
              { 2 5 4 6 }
            value OpenType: PrintableString: tag = [UNIVERSAL 19]
              primitive; length = 2
              "DE"
        RelativeDistinguishedName SET OF: tag = [UNIVERSAL 17]
          constructed; length = 55
          AttributeTypeAndValue SEQUENCE: tag = [UNIVERSAL 16]
            constructed; length = 53
            type OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
              length = 3
              { 2 5 4 10 }
            value OpenType: UTF8String: tag = [UNIVERSAL 12]
              primitive; length = 46
              0x474d4420466f72736368756e67737a656e7472756d20496e66...
        RelativeDistinguishedName SET OF: tag = [UNIVERSAL 17]
          constructed; length = 29
          AttributeTypeAndValue SEQUENCE: tag = [UNIVERSAL 16]
            constructed; length = 13
            type OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
              length = 3
              { 2 5 4 4 }
            value OpenType: UTF8String: tag = [UNIVERSAL 12]
              primitive; length = 6
              0x4261727a696e
          AttributeTypeAndValue SEQUENCE: tag = [UNIVERSAL 16]
            constructed; length = 12
            type OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
              length = 3
              { 2 5 4 42 }
            value OpenType: UTF8String: tag = [UNIVERSAL 12]
              primitive; length = 5
              0x5065747261
    subjectPublicKeyInfo SubjectPublicKeyInfo SEQUENCE: tag =
      [UNIVERSAL 16] constructed; length = 157



Santesson, et al.           Standards Track                    [Page 30]

RFC 3039             Qualified Certificates Profile         January 2001


      algorithm AlgorithmIdentifier SEQUENCE: tag = [UNIVERSAL 16]
        constructed; length = 13
        algorithm OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
          length = 9
          { 1 2 840 113549 1 1 1 }
        parameters OpenType: NULL: tag = [UNIVERSAL 5] primitive;
          length = 0
          NULL
      subjectPublicKey BIT STRING: tag = [UNIVERSAL 3] primitive;
        length = 139
        0x0030818702818100b8488400d4b6088be48ead459ca19ec717aaf3d1d...
    extensions : tag = [3] constructed; length = 233
      Extensions SEQUENCE OF: tag = [UNIVERSAL 16] constructed;
        length = 230
        Extension SEQUENCE: tag = [UNIVERSAL 16] constructed;
          length = 100
          extnId OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
            length = 3
            { 2 5 29 9 }
          extnValue OCTET STRING: tag = [UNIVERSAL 4] primitive;
            length = 93
            0x305b301006082b06010505070904310413024445300f06082b060...
        Extension SEQUENCE: tag = [UNIVERSAL 16] constructed;
          length = 14
          extnId OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
            length = 3
            { 2 5 29 15 }
          critical BOOLEAN: tag = [UNIVERSAL 1] primitive; length = 1
            TRUE
          extnValue OCTET STRING: tag = [UNIVERSAL 4] primitive;
            length = 4
            0x03020640
        Extension SEQUENCE: tag = [UNIVERSAL 16] constructed;
          length = 18
          extnId OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
            length = 3
            { 2 5 29 32 }
          extnValue OCTET STRING: tag = [UNIVERSAL 4] primitive;
            length = 11
            0x3009300706052b24080101
        Extension SEQUENCE: tag = [UNIVERSAL 16] constructed;
          length = 31
          extnId OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
            length = 3
            { 2 5 29 35 }
          extnValue OCTET STRING: tag = [UNIVERSAL 4] primitive;
            length = 24
            0x30168014000102030405060708090a0b0c0d0e0ffedcba98



Santesson, et al.           Standards Track                    [Page 31]

RFC 3039             Qualified Certificates Profile         January 2001


        Extension SEQUENCE: tag = [UNIVERSAL 16] constructed;
          length = 57
          extnId OBJECT IDENTIFIER: tag = [UNIVERSAL 6] primitive;
            length = 8
            { 1 3 6 1 5 5 7 1 3 }
          extnValue OCTET STRING: tag = [UNIVERSAL 4] primitive;
            length = 45
            0x302b302906082b06010505070b01301d301b81196d756e6963697...

C.3 DER-encoding

  This section contains the full, DER-encoded certificate, in hex.

  3082030E30820277A0030201020204499602D2300D06092A864886F70D010105
  05003048310B300906035504061302444531393037060355040A0C30474D4420
  2D20466F72736368756E67737A656E7472756D20496E666F726D6174696F6E73
  746563686E696B20476D6248301E170D3030303530313130303030305A170D30
  30313130313130303030305A3065310B30090603550406130244453137303506
  0355040A0C2E474D4420466F72736368756E67737A656E7472756D20496E666F
  726D6174696F6E73746563686E696B20476D6248311D300C060355042A0C0550
  65747261300D06035504040C064261727A696E30819D300D06092A864886F70D
  010101050003818B0030818702818100B8488400D4B6088BE48EAD459CA19EC7
  17AAF3D1D4EE3ECCA496128A13597D16CC8B85EB37EFCE110C63B01E684E5CF6
  32291EAC60FD153C266EAAC36AD4CEA92319F9BFDD261AD2BFE41EAB4E17FE67
  8341EE52D9A0A8B4DEC07B7ACC76762514045CEE9994E0CF37BAE05F8DE33B35
  FF98BCE77742CE4B12273BD122137FE9020105A381E93081E630640603551D09
  045D305B301006082B06010505070904310413024445300F06082B0601050507
  09033103130146301D06082B060105050709013111180F313937313130313430
  30303030305A301706082B06010505070902310B0C094461726D737461647430
  0E0603551D0F0101FF04040302064030120603551D20040B3009300706052B24
  080101301F0603551D23041830168014000102030405060708090A0B0C0D0E0F
  FEDCBA98303906082B06010505070103042D302B302906082B06010505070B01
  301D301B81196D756E69636970616C697479406461726D73746164742E646530
  0D06092A864886F70D01010505000381810048FD14D9AFE961E4321D9AA40CC0
  1C12893550CF76FBECBDE448926B0AE6F904AB89E7B5F808666FB007218AC18D
  28CE1E2D40FBF8C16B275CBA0547D7885B74059DEC736223368FC1602A510BC1
  EB31E39F3967BE6B413D48BC743A0AB19C57FD20F3B393E8FEBD8B05CAA5007D
  AD36F9D789AEF636A0AC0F93BCB3711B5907













Santesson, et al.           Standards Track                    [Page 32]

RFC 3039             Qualified Certificates Profile         January 2001


C.4 CA's public RSA key

  This section contains the DER-encoded public RSA key of the CA who
  signed the example certificate.  It is included with the purpose of
  simplifying verifications of the example certificate.

  30818902818100ad1f35964b3674c807b9f8a645d2c8174e514b69a4b46a7382
  915abbc44eccede914dae8fcc023abcea9c53380e641795cb0dda664b872fc10
  9f9bbb852bf42d994f634c681608e388dce240b558513e5b60027bd1a07cef9c
  9b6db37c7e1f1abd238eed96e4b669056b260f55e83f14e6027127c9deb3ad18
  afcd3f8a5f5bf50203010001








































Santesson, et al.           Standards Track                    [Page 33]

RFC 3039             Qualified Certificates Profile         January 2001


Authors' Addresses

  Stefan Santesson
  AddTrust AB
  P.O. Box 465
  S-201 24 Malmo
  Sweden

  EMail: [email protected]


  Tim Polk
  NIST
  Building 820, Room 426
  Gaithersburg, MD 20899, USA

  EMail: [email protected]


  Petra Barzin
  SECUDE - Sicherheitstechnologie Informationssysteme GmbH
  Landwehrstrasse 50a
  D-64293 Darmstadt
  Germany

  EMail: [email protected]


  Magnus Nystrom
  RSA Security AB
  Box 10704
  S-121 29 Stockholm
  Sweden

  EMail: [email protected]
















Santesson, et al.           Standards Track                    [Page 34]

RFC 3039             Qualified Certificates Profile         January 2001


Full Copyright Statement

  Copyright (C) The Internet Society (2001).  All Rights Reserved.

  This document and translations of it may be copied and furnished to
  others, and derivative works that comment on or otherwise explain it
  or assist in its implementation may be prepared, copied, published
  and distributed, in whole or in part, without restriction of any
  kind, provided that the above copyright notice and this paragraph are
  included on all such copies and derivative works.  However, this
  document itself may not be modified in any way, such as by removing
  the copyright notice or references to the Internet Society or other
  Internet organizations, except as needed for the purpose of
  developing Internet standards in which case the procedures for
  copyrights defined in the Internet Standards process must be
  followed, or as required to translate it into languages other than
  English.

  The limited permissions granted above are perpetual and will not be
  revoked by the Internet Society or its successors or assigns.

  This document and the information contained herein is provided on an
  "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
  TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
  BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
  HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
  MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Acknowledgement

  Funding for the RFC Editor function is currently provided by the
  Internet Society.



















Santesson, et al.           Standards Track                    [Page 35]