Challenge refusal

If the user doesn't approve the challenge request, the PKSA will send a refusal message to the HAS. The HAS will then forward the following message to the APP:

challenge_nack

{
    cmd: "challenge_nack",
    uuid: string,
    data: string
}
  • uuid: the challenge request identifier

  • data: the uuid encrypted with auth_key and converted to Base64

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