Lianja

Get the JWE Protected Header

See more JSON Web Encryption (JWE) Examples

Demonstrates Jwe.GetProtectedHeader, which copies the decoded shared JWE protected header into a JsonObject.

Background. Only the protected header is returned; it is not merged with the shared unprotected header or any per-recipient header.

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llSuccess = .F.

loJwe = createobject("CkJwe")

//  Load the JWE.
lcJweCompact = "eyJhbGciOiJBMjU2S1ciLCJlbmMiOiJBMjU2R0NNIn0.<...>.<iv>.<ciphertext>.<tag>"
llSuccess = loJwe.LoadJwe(lcJweCompact)
if (llSuccess = .F.) then
    ? loJwe.LastErrorText
    release loJwe
    return
endif

//  Copy the decoded shared JWE protected header into a JsonObject.  Only the protected header is
//  returned; it is not merged with the unprotected or per-recipient headers.
loJson = createobject("CkJsonObject")
llSuccess = loJwe.GetProtectedHeader(loJson)
if (llSuccess = .F.) then
    ? loJwe.LastErrorText
    release loJwe
    release loJson
    return
endif

loJson.EmitCompact = .F.
? loJson.Emit()


release loJwe
release loJson