rfc1875.txt

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RFC 1875             UNINETT PCA Policy Statements         December 1995


   Bulk certification of users will typically be done when it is
   desirable to certify many users belonging to the same organization.
   An example could be the certification of students at the beginning of
   a semester, or initial certification of all employees belonging to a
   company. When bulk certifying users, the CA will generate the users'
   key pairs and certificates. A user's key pair together with the
   certificate will be DES-encrypted and sent electronically to the
   user.  The pass phrase to generate the DES-key can be collected at
   the local RA, given proof of identity. The pass phrase can also be
   sent by certified surface mail.

   When bulk certifying users the CA or RA shall not access or store any
   of the users' private information.

   A person's identity is verified by:

   - driver's licence
   - passport
   - bank card (Norwegian)

   CA and RA need not be separate entities. A CA may verify the identity
   of users directly, following the procedures described above.

6.4 Validity interval for issued certificates

   Validity interval for user and RA certificates is maximum 2 years
   from date of issue.

   There is in principle no special requirements regarding validity
   intervals for CA certificates, though it is recommended not to issue
   certificates for more than a 10 year period.

6.5 The CAs right to a DN and procedures to resolve DN conflicts

   CAs will preferably use DNs reflecting the organizational scope under
   which they certify users (see also "Naming conventions"). The
   certifying entity must ensure, with the aid of X.500 as
   disambiguation tool, the uniqueness of a DN.

6.6 The user's right to a DN and procedures to resolve DN conflicts

   It is the certifying CA who will determine a user's DN and ensure,
   with the aid of X.500 as disambiguation tool, the uniqueness of a DN.
   Users will preferably use DNs reflecting the organization to which
   they belong, and their full name (see also "Naming conventions").






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RFC 1875             UNINETT PCA Policy Statements         December 1995


7. Certificate management

   UNINETTs X.500 service will be used when storing certificates
   belonging to users within UNINETT member organizations. Other users
   may also use the X.500 service if available. All certificates issued
   will be maintained in a local database by the certifying entity in
   addition to the X.500 directory. If a CA does not have access to the
   X.500 service, all issued certificates must be mailed to the UNINETT
   PCA who will make the X.500 entries on behalf of the CA.

   Certificates can be requested in two ways, either directly from the
   X.500 directory, or by querying a mail-responder service maintained
   by the UNINETT PCA.

   Details on how certificates are mailed, and how to use the mail-
   responder service can be found at the following WWW site:
   http://www.uninett.no/pca/

8. CRL Management

   Certificate Revocation Lists (CRLs) must be issued at least once a
   month, on a specified date, by CAs. The UNINETT X.500 service will be
   used to publish CRLs. If a CA does not have access to the X.500
   service the CRL must be mailed to the UNINETT PCA who will make the
   X.500 entries on behalf of the CA.

   CRLs can be requested in two ways, either directly from the X.500
   directory, or by querying a mail-responder service maintained by the
   UNINETT PCA.

   Details on how CRLs are mailed, and how to use the mail-responder
   service can be found at the following WWW site:

   http://www.uninett.no/pca/

   The UNINETT PCA will continually update the CRL with revoked CA
   certificates.

   There is no automatic distribution service of CRLs. Therefore users
   will have to pull CRLs from the X.500 or the mail-responder. Black
   lists are currently not supported. Appropriate news groups and
   information services will be used to announce the issuance of new
   CRLs.








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RFC 1875             UNINETT PCA Policy Statements         December 1995


9. Naming Conventions

   Naming conventions for CAs:

   CAs' DNs will follow the conventions adopted by their organization.
   Organizations who do not have any preferences in this matter should
   use the following scheme:

   C=<country>, O=<organization> [, OU=<organizational-unit>]

   Country is the country code, e.g. all Norwegian organizations have
   C=no. Organization is the organization represented by the CA (e.g.
   the scope for which the CA certify users). Organizational-unit is
   optional, reflecting a unit within a large organization for cases in
   which the organization has more than one CA. Example: the CA
   responsible for certifying UNINETT employees will be assigned the
   following DN: C=no, O=uninett

   Naming conventions for users:

   Users' DNs will follow the conventions adopted by their organization.
   Organizations who do not have any preferences in this matter should
   use the following scheme:

   C=<country>, O=<organization>, [OU=<organizational-unit>,]
   CN=<personal name>

   Personal name will be a unique name for the user with respect to the
   organization to which the user belongs. An organization's CA is
   responsible for ensuring that all certified users have a distinct
   personal name. Usually personal name will be the user's full name.
   Use of OU is optional. Example if Per Olsen is an employee of UNINETT
   he will be assigned the following DN: C=no, O=uninett, CN=Per Olsen.

   The choice of which users to certify as belonging to the organization
   is made by the CA, not by the PCA.















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RFC 1875             UNINETT PCA Policy Statements         December 1995


10. Business Issues

10.1 Legal agreements concerning CAs

   If a CA wishes to be certified by the UNINETT PCA, the CA will have
   to sign a legal agreement with the UNINETT PCA. The legal agreement
   can be obtained by contacting the UNINETT PCA.

10.2 Legal agreements concerning RAs

   If an RA wishes to be certified by a CA, a person representing the RA
   will have to sign a legal agreement with the CA. The legal agreement
   can be obtained from the appropriate CA, or directly from the UNINETT
   PCA. Each CA will locally decide whether the RA is to be certified.

10.3 Fees

   The UNINETT PCA reserves the right to charge fees. The fee structure
   will be determined by UNINETT policy.

11. Other

11.1 Distribution of software needed by CAs, RAs and users

   The software needed is based on the SecuDE-package from GMD
   Darmstadt, and is available without fee for non-commercial purposes.
   All software distributions should include a signature from the
   UNINETT PCA to verify its integrity. Users, CAs, and RAs are expected
   to verify such signatures immediately after installation.

12. Security Considerations

   Security issues are discussed throughout this memo.


















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RFC 1875             UNINETT PCA Policy Statements         December 1995


13. References

   [1] Linn, J., "Privacy Enhancement for Internet Electronic Mail: Part
       I: Message Encryption and Authentication Procedures", RFC 1421,
       IAB IRTF PSRG, IETF PEM WG, February 1993.

   [2] Kent, S., "Privacy Enhancement for Internet Electronic Mail: Part
       II: Certificate-Based Key Management", RFC 1422, IAB IRTF PSRG,
       IETF PEM, BBN, February 1993.

   [3] Balenson, D., "Privacy Enhancement for Internet Electronic Mail:
       Part III: Algorithms, Modes, and Identifiers", RFC 1423, IAB IRTF
       PSRG, IETF PEM WG, TIS, February 1993.

   [4] Kaliski, B., "Privacy Enhancement for Internet Electronic Mail:
       Part IV: Key Certification and Related Services", RFC 1424, RSA
       Laboratories, February 1993.

14. Author's Address

   Nils Harald Berge
   Norwegian Computing Center
   Gaustadallien 23
   P.O.Box 114 Blindern,
   N-0314 Oslo, Norway

   Phone: [phone]
   Fax : [phone]
   EMail: [e-mail]






















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