From d450ecd2ad12a203c28c1d6dfb503af0de1a275e Mon Sep 17 00:00:00 2001
From: swrup <swrup@protonmail.com>
Date: Fri, 27 Feb 2026 18:15:09 +0100
Subject: [PATCH]

---
 src/api.ml                 |  4 ++--
 test/offline_management.sh |  2 +-
 test/validate_response.ml  | 34 +++++++++++++++++++++++++---------
 3 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/src/api.ml b/src/api.ml
index 592083fa..8ec12854 100644
--- a/src/api.ml
+++ b/src/api.ml
@@ -1261,7 +1261,7 @@ module ExchangeKeysResponse = struct
     stefan_lin: Float.t;
     asset_type: string;
     accounts: ExchangeWireAccount.t list;
-    wire_fees: AggregateTransferFee.t list Stdlib.Map.Make(Stdlib.String).t;
+    wire_fees: AggregateTransferFee.t list String_map.t;
     wads: ExchangePartnerListEntry.t list;
     kyc_enabled: bool;
     disable_direct_deposit: bool;
@@ -1278,7 +1278,7 @@ module ExchangeKeysResponse = struct
     list_issue_date: Timestamp.t;
     auditors: AuditorKeys.t list;
     signkeys: SignKey.t list;
-    extensions: ExtensionManifest.t Stdlib.Map.Make(Stdlib.String).t option;
+    extensions: ExtensionManifest.t String_map.t option;
     (* Signature by the exchange master key of the SHA-256 hash of the
        normalized JSON-object of field extensions, if it was set.
        The signature has purpose TALER_SIGNATURE_MASTER_EXTENSIONS. *)
diff --git a/test/offline_management.sh b/test/offline_management.sh
index ccbef73b..606e6028 100755
--- a/test/offline_management.sh
+++ b/test/offline_management.sh
@@ -60,7 +60,7 @@ echo "[OK] /management/auditors/\$AUDITOR_PUB/disable"
 offline_tool wire-fee \
 --master_key $master_key \
 --output $b \
---wire_method "xxx" \
+--wire_method "x-taler-bank" \
 --fee_start 0 \
 --fee_end 99999999 \
 --closing_fee $zero_kudos \
diff --git a/test/validate_response.ml b/test/validate_response.ml
index 709f4464..13059db5 100644
--- a/test/validate_response.ml
+++ b/test/validate_response.ml
@@ -2,9 +2,9 @@ open Syntax
 (*open Crypto*)
 
 let keys content =
-  let open Api.ExchangeKeysResponse in
+  let open Api in
+  let open ExchangeKeysResponse in
   let* v = Api.decode jsont content in
-  (* validate version compatibility *)
   let* () =
     if
       Libtool_version.is_compatible
@@ -13,13 +13,29 @@ let keys content =
     else Fmt.error "version incompatible"
   in
 
-  (* TODO *)
-  (* validate currency specification *)
-  (* validate all amounts *)
-  (* validate all timestamp/duration *)
-  (* validate master_public_key *)
-  (* validate accounts *)
-  (* validate wire-fees *)
+  (* TODO need hash over json..
+     validate ExchangeWireAccount *)
+  let* () =
+    let open AggregateTransferFee in
+    v.wire_fees
+    |> String_map.bindings
+    |> List.concat_map (fun (wire_method, l) ->
+        List.map (fun item -> (wire_method, item)) l)
+    |> list_iter
+         (fun
+           (wire_method, { wire_fee; closing_fee; start_date; end_date; sig_ })
+         ->
+           let open Signatures.MasterWireFee in
+           verify v.master_public_key sig_
+             {
+               h_wire_method= Hash.Cstring.H64.hash wire_method;
+               start_date;
+               end_date;
+               wire_fee;
+               closing_fee;
+             })
+  in
+
   (* validate signkeys *)
   (* validate exchange_pub *)
   (* validate denominations *)