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Beskrivning av European Student Identifier (ESI)

European Student Identifier, förkortat ESI, är ett särskilt attribut som används vid administration av europeiska studentutbyten, t.ex. inom Erasmusprogrammet, samt vid de virtuella europeiska universiteten för att primärt underlätta att personuppgifter och studieresultat överförs korrekt mellan de inblandade högskolorna och universiteten.

Använda StudentUID från Ladok som ESI

I Ladok finns ett ExterntUID-värde för varje student. Värdet kommer ursprungligen från UHR:s studenttjänst och samordnas med NyA/Antagning.se. För att i möjligaste mån se till studenter har samma ESI oberoende vilket lärosäte/inloggningstjänst studenten loggar in via så bör detta användas för ESI.

ExterntUID i Ladok är ett uuid, exempelvis 9e342e78-5b6c-4902-966e-50e28a21e601.

Alternativ 1: Värdet på schacPersonalUniqueCode blir då: urn:schac:PersonalUniqueCode:int:esi:ladok.se:9e342e78-5b6c-4902-966e-50e28a21e601 <sHO> måste eventuellt vara samma som eller ett postfix av attributet schacHomeOrganization (inte klart utläsbart ur specen av ESI, undersökning pågår) så vi kanske måste använda SE istället.

Alternativ 2: Värdet på schacPersonalUniqueCode blir då: urn:schac:PersonalUniqueCode:int:esi:SE:student-9e342e78-5b6c-4902-966e-50e28a21e601

Använda unikt id från eduID som ESI

Varje användare i eduID har ett unikt id som används som identifierare i attributet eduPersonPrincipalName (<unikt-id>@eduid.se)

Det unika id:t är en textsträng på specifikt format, exempelvis abcde-fghij

Värdet på schacPersonalUniqueCode blir då: urn:schac:PersonalUniqueCode:int:esi:eduid.se:abcde-fghij

Använda användaridentitet vid lärosäte som ESI

Varje användare vid lärosätet har en unik användaridientet som aldrig åtaranvänds för annan individ.

Användaridentiteten är en textsträng, exempelvis abcd1234, och lärosätet har DNS-domänen (SAML Scope) larosate.se.

Värdet på schacPersonalUniqueCode blir då: urn:schac:PersonalUniqueCode:int:esi:larosate.se:abcd1234

Defintioner

Definition av European Student Identifier (ESI)

Utdrag från: https://wiki.geant.org/display/SM/European+Student+Identifier (v1.0)

This specification defines a profile for the schacPersonalUniqueCode attribute (as defined in the SCHema for Academia) that will be used to transport the European Student Identifier.

Description

The student mobility processes require the use of a number of services, all of which are involved in different stages of the pipeline and which will need to be able to exchange data about the students who are in mobility.

The European Student Identifier is globally unique, persistent, non-targeted, protocol neutral and data transport neutral.

  • Globally Unique: Each student should be uniquely identified across organizational and national boundaries
  • Persistent: The identifier should follow the student while he/she is on student mobility
  • Non-targeted: The identifier should be the same for all services involved in the student mobility processes
  • Protocol neutral: The identifier should not change value depending on the protocol used. For example, it should be the same regardless of whether SAML or OpenID Connect is used
  • Data transport neural: The identifier should not change value depending on how it is transported. For example, the students should be identified by the same identifier regardless if the it is through a federated authentication flow or a back-channel transfer of records.

Format

The European Student Identifier can take on one of two forms, depending on the qualifiers needed to make a given student code globally unique:

ESI with nation-wide (or region-wide) scope student code:

urn:schac:personalUniqueCode:int:esi:<country-code>:<code>

ESI with HEI-wide scope student code:

urn:schac:personalUniqueCode:int:esi:<sHO>:<code>

Where:

  • <country-code> is a valid ISO 3166 country code identifier to qualify the student code with so that it uniquely identifies the student within the Member State (officially assigned ISO 3166-1 alpha-2 country code) or administrative division (e.g. province or state; ISO 3166-2 code), where applicable.
  • <sHO> is the Higher Education Institution's schacHomeOrganization value (possibly further qualified with the organisational unit issuing the student code). Required if the student code is issued by the Home Organization of the student (or one of its org units) and there can be no guarantee that it uniquely identifies the student within the Member State or administrative division.
  • <code> is a string that uniquely identifies the student within the scope that it has been issued. It has to satisfy the requirements for strings to be used in URNs according to RFC 2141, sections 2.2 to 2.4.
  • The complete schacPersonalUniqueCode attribute value for the ESI does not exceed 255 characters in length.

Examples

Non-normative examples for both forms:

  • ESI with nation-wide scope student codes :
    urn:schac:personalUniqueCode:int:esi:hr:xxxxxxxxxx
  • ESI with HEI-wide scope student codes :
    urn:schac:personalUniqueCode:int:esi:example.edu:xxxxxxxxxx
    urn:schac:personalUniqueCode:int:esi:math.example.edu:xxxxxxxxxx

Definition av attributet schacPersonalUniqueCode

Utdrag från: https://wiki.refeds.org/display/STAN/SCHAC+Releases (v1.5)

NameschacPersonalUniqueCode
DescriptionSpecifies a “unique code” for the subject it is associated with.
Its value does not necessarily correspond to any identifier outside the scope of the
directories using this schema.
This might be Student number, Employee number,...
OID1.3.6.1.4.1.25178.1.2.14
Formaturn:schac:personalUniqueCode:<country-code>:<iNSS>

The must be a valid two-letter ISO 3166 country code identifier or the string “int”, and assigned by the SCHAC URN Registry for this attribute at https://wiki.refeds.org/display/STAN/SCHAC+URN+Registry is a Namespace Specific String as defined in RFC 2141 but case insensitive, from a nationally controlled vocabulary, published through the URI identified at the above mentioned SCHAC URN registry.
RFC 4517 definition( schacAttributeType:14
  NAME 'schacPersonalUniqueCode'
  DESC 'Unique code for the subject'
  EQUALITY caseIgnoreMatch
  ORDERING caseIgnoreOrderingMatch
  SUBSTR caseIgnoreSubstringsMatch
  SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
ExamplesCommon values:
urn:schac:personalUniqueCode:int:studentID:<country-code>:<code>

National extensions:
urn:schac:personalUniqueCode:fi:tut.fi:hetu:010161-995A
urn:schac:personalUniqueCode:es:uma:estudiante:a3b123c12
urn:schac:personalUniqueCode:se:LIN:87654321
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