InCommon Server Certificate Profile

The InCommon server cert profile is listed here for convenience. The authoritative profile is listed in the InCommon Certificate Authority Certification Practices Statement [PDF].

3.1 InCommon Certification Authority Server Certificate Profile

InCommon Server Cert Profile v20071116

Field Name

Value

Example

Specified

Explanation

Version

0x2

0x2

Yes

A version 3 certificate is specified

Serial Number

a unique integer

334

Yes

An integer that is unique to all certificates issued by the InCommon CA.

Signature Algorithm

SHA1/RSA

 

Yes

 

Issuer

DN

cn=InCommon Certification Authority, o=InCommon Federation, c=US

Yes

 

Validity

Time

Not valid before: date
Not valid after: date plus two years

Yes

A two year validity period is used by default. A shorter period may be selected in special cases.

Subject

DN

cn=shib.school.
edu

Yes

The CN= is the full domain name of the InCommon Shibboleth server at the organization.

Public Key

 

1024

No

At least a 1024 bit key will be used.

Certificate Extensions

Key Usage

Digital Signatures and Key Encipherment

Digital signatures and Key encipherment authentication will be asserted

Yes

The extension will be marked critical.

Basic Constraints

CA=false

CA=false

Yes

This extension will be marked critical.

CRL Distribution Points

URI

http://incommoncrl1.incommonfederation.org/crl/eecrls.crl

http://incommoncrl2. incommonfederation.org /crl/eecrls.crl

Yes

NonCritical; The InCommon CA will issue CRLs and make them available via http.

Certification Policy

InCommon Policy OID

1.3.6.1.4.1.5923.1.4.1.1

Yes

 

CPS Pointer

URI

http://incommonca.incommonfederation.org/practices.pdf

Yes

This certificate practices document will be available on-line in PDF form. PDF was selected to make accidental modification less likely.

Authority Information Access

URI id-ad-caIssuers

http://incommonca1.incommonfederation.org/bridge/certs/ca-certs.p7b 

http://incommonca2.incommonfederation.org/bridge/certs/ca-certs.p7b

Yes

Two AIA URLs located at different points on the Internet will be specified.  The HTTP URL in the AIA field will be a pointer to a PKCS-7 object. When the link is accessed, the web server returns the PKCS-7 file using the MIME type application/x-x509-ca-cert.

Extended Key Usage

Server Authentication
Client Authentication

TLS Web Server Authentication and TLS Web Client Authentication will be asserted

Yes

This extension will be marked non-critical

SubjectAlt Name

DNSName

shib.school.edu

Yes

The value for this field is the hostname of the server and must be the same as the CN in the Subject Name.

Subject Key Identifier

KeyID

See RFC-3280 for details

Yes

 

Authority Key Identifier

KeyID

See RFC-3280 for details

Yes

 

Notes:
Specified column
  Yes:  The profile specifies the use of this field as documented.
  No:   The profile does not specify the usage but may recommend a way to use the field.