Class: SelectiveDisclosurePresentation

identity_wasm.SelectiveDisclosurePresentation

Used to construct a JwpPresentedBuilder and handle the selective disclosure of attributes

Context

MUST NOT be blinded

• id MUST be blinded
• type MUST NOT be blinded
• issuer MUST NOT be blinded
• issuanceDate MUST be blinded (if Timeframe Revocation mechanism is used)
• expirationDate MUST be blinded (if Timeframe Revocation mechanism is used)
• credentialSubject (User have to choose which attribute must be blinded)
• credentialSchema MUST NOT be blinded
• credentialStatus MUST NOT be blinded
• refreshService MUST NOT be blinded (probably will be used for Timeslot Revocation mechanism)
• termsOfUse NO reason to use it in ZK VC (will be in any case blinded)
• evidence (User have to choose which attribute must be blinded)

Table of contents

Constructors

• constructor

Methods

• concealInSubject
• concealInEvidence
• setPresentationHeader

Constructors

constructor

• new SelectiveDisclosurePresentation(issued_jwp)

Initialize a presentation starting from an Issued JWP. The properties jti, nbf, issuanceDate, expirationDate and termsOfUse are concealed by default.

Parameters

Name	Type
issued_jwp	JwpIssued

Methods

concealInSubject

▸ concealInSubject(path): void

Selectively disclose "credentialSubject" attributes.

Example

{
    "id": 1234,
    "name": "Alice",
    "mainCourses": ["Object-oriented Programming", "Mathematics"],
    "degree": {
        "type": "BachelorDegree",
        "name": "Bachelor of Science and Arts",
    },
    "GPA": "4.0",
}

If you want to undisclose for example the Mathematics course and the name of the degree:

undisclose_subject("mainCourses[1]");
undisclose_subject("degree.name");

Parameters

Name	Type
path	string

Returns

void

---

concealInEvidence

▸ concealInEvidence(path): void

Undiscloses "evidence" attributes.

Parameters

Name	Type
path	string

Returns

void

---

setPresentationHeader

▸ setPresentationHeader(header): void

Sets presentation protected header.

Parameters

Name	Type
header	PresentationProtectedHeader

Returns

void