Internet Assigned Numbers Authority

                                                                     Privacy Pass

   Created
   2023-11-17

   Last Updated
   2024-07-12

   Available Formats
   [IMG]
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   Plain text

   Registry included below

     • Privacy Pass Token Types

Privacy Pass Token Types

   Registration Procedure(s)

 Specification Required

   Expert(s)

 Tommy Pauly, Chris Wood

   Reference
   [RFC9577]

   Available Formats
   [IMG]
   CSV

    Value         Name       Token     Token Key Encoding  TokenChallenge  Publicly   Public  Private  Nk  Nid   Change   Reference                Notes
                           Structure                         Structure    Verifiable Metadata Metadata         Controller
0x0000        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
                           As defined Serialized using     As defined in                                                  [RFC9578,
0x0001        VOPRF(P-384, in Section SerializeElement     Section 2.1 of N          N        N        48  32  IETF       Section
              SHA-384)     2.2 of     (Section 2.1 of      [RFC9577].                                                     5]
                           [RFC9577]. [RFC9497]).
                                      Serialized as a
                           As defined DER-encoded          As defined in                                                  [RFC9578, The RSABSSA-SHA384-PSS-Deterministic
0x0002        Blind RSA    in Section SubjectPublicKeyInfo Section 2.1 of Y          N        N        256 32  IETF       Section   and
              (2048-bit)   2.2 of     (SPKI) object using  [RFC9577].                                                     6]        RSABSSA-SHA384-PSSZERO-Deterministic
                           [RFC9577]. the RSASSA-PSS OID                                                                            variants are supported.
                                      [RFC5756].
0x0003-0x02A9 Unassigned
0x02AA        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x02AB-0x1131 Unassigned
0x1132        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x1133-0x2E95 Unassigned
0x2E96        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x2E97-0x3CD2 Unassigned
0x3CD3        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x3CD4-0x4472 Unassigned
0x4473        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x4474-0x5A62 Unassigned
0x5A63        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x5A64-0x6D31 Unassigned
0x6D32        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x6D33-0x7F3E Unassigned
0x7F3F        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x7F40-0x8D06 Unassigned
0x8D07        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x8D08-0x916A Unassigned
0x916B        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0x916C-0xA6A3 Unassigned
0xA6A4        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0xA6A5-0xBEAA Unassigned
0xBEAB        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0xBEAC-0xC3F2 Unassigned
0xC3F3        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0xC3F4-0xDA41 Unassigned
0xDA42        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0xDA43-0xE943 Unassigned
0xE944        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0xE945-0xF056 Unassigned
0xF057        RESERVED     Random     Random bytes         Random bytes   N/A        N/A      N/A      N/A N/A IETF       [RFC9577]
                           bytes
0xF058-0xFFFF Unassigned

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