From 4c239063e29d3f33287e3923f63f2217ad62ebe4 Mon Sep 17 00:00:00 2001
From: swrup <swrup@protonmail.com>
Date: Tue, 7 Oct 2025 12:02:05 +0200
Subject: [PATCH]

---
 src/binary_formats.ml | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/binary_formats.ml b/src/binary_formats.ml
index d5adf7a7..fd9cafe2 100644
--- a/src/binary_formats.ml
+++ b/src/binary_formats.ml
@@ -468,3 +468,33 @@ module Withdraw_request_ps = struct
     |+ field Age_mask.bin (fun t -> t.mask)
     |> sealr
 end
+
+module Withdraw_confirmation_ps = struct
+  type t = {
+    (* Purpose is #TALER_SIGNATURE_EXCHANGE_CONFIRM_WITHDRAW.
+       Signed by a `struct TALER_ExchangePrivateKeyP` using EdDSA. *)
+    purpose: Ecc_signature_purpose.t;
+    (* Commitment made in the /withdraw request.
+       Also needed for the /reveal-withdraw endpoint (in case
+       of required proof of age restriction) and for /recoup *)
+    (* TODO TALER doc
+       missing TALER_HashBlindedPlanchetsP*)
+    h_planchets: Hash_planchets_p.t;
+    (* If proof of age restriction is not required for to this
+       withdrawal, (i.e. max_age was not set during the request)
+       MUST be 0xFFFFFFFF.
+       Otherwise (i.e. proof of age restriction required):
+       index that the client will not have to reveal, in NBO,
+       MUST be smaller than #TALER_CNC_KAPPA. *)
+    noreveal_index: int32;
+  }
+
+  let bin =
+    let open Bin in
+    record (fun purpose h_planchets noreveal_index ->
+        { purpose; h_planchets; noreveal_index })
+    |+ field Ecc_signature_purpose.bin (fun t -> t.purpose)
+    |+ field Hash_planchets_p.bin (fun t -> t.h_planchets)
+    |+ field beint32 (fun t -> t.noreveal_index)
+    |> sealr
+end