From ad343059427a20ad091d384fc430b631feae70cc Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Sun, 21 Jul 2019 12:20:45 +0200
Subject: expose blinding key in refresh-reveal API in preparation for #5777

---
 src/lib/exchange_api_refresh.c    | 19 +++++++------------
 src/lib/testing_api_cmd_refresh.c |  5 +++--
 2 files changed, 10 insertions(+), 14 deletions(-)

(limited to 'src/lib')

diff --git a/src/lib/exchange_api_refresh.c b/src/lib/exchange_api_refresh.c
index 853c702e3..c12fd32db 100644
--- a/src/lib/exchange_api_refresh.c
+++ b/src/lib/exchange_api_refresh.c
@@ -1318,14 +1318,12 @@ struct TALER_EXCHANGE_RefreshRevealHandle
  *
  * @param rrh operation handle
  * @param json reply from the exchange
- * @param[out] coin_privs array of length `num_fresh_coins`, initialized to contain private keys
  * @param[out] sigs array of length `num_fresh_coins`, initialized to cointain RSA signatures
  * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
  */
 static int
 refresh_reveal_ok (struct TALER_EXCHANGE_RefreshRevealHandle *rrh,
                    const json_t *json,
-                   struct TALER_CoinSpendPrivateKeyP *coin_privs,
                    struct TALER_DenominationSignature *sigs)
 {
   json_t *jsona;
@@ -1405,7 +1403,6 @@ refresh_reveal_ok (struct TALER_EXCHANGE_RefreshRevealHandle *rrh,
       return GNUNET_SYSERR;
     }
     GNUNET_CRYPTO_rsa_signature_free (blind_sig);
-    coin_privs[i] = coin.coin_priv;
     sigs[i] = coin.sig;
   }
   GNUNET_JSON_parse_free (outer_spec);
@@ -1436,14 +1433,12 @@ handle_refresh_reveal_finished (void *cls,
     break;
   case MHD_HTTP_OK:
     {
-      struct TALER_CoinSpendPrivateKeyP coin_privs[rrh->md->num_fresh_coins];
       struct TALER_DenominationSignature sigs[rrh->md->num_fresh_coins];
       int ret;
 
       memset (sigs, 0, sizeof (sigs));
       ret = refresh_reveal_ok (rrh,
                                j,
-                               coin_privs,
                                sigs);
       if (GNUNET_OK != ret)
       {
@@ -1453,9 +1448,9 @@ handle_refresh_reveal_finished (void *cls,
       {
         rrh->reveal_cb (rrh->reveal_cb_cls,
                         MHD_HTTP_OK,
-			TALER_EC_NONE,
+                        TALER_EC_NONE,
                         rrh->md->num_fresh_coins,
-                        coin_privs,
+                        rrh->md->fresh_coins[rrh->noreveal_index],
                         sigs,
                         j);
         rrh->reveal_cb = NULL;
@@ -1490,10 +1485,10 @@ handle_refresh_reveal_finished (void *cls,
   if (NULL != rrh->reveal_cb)
     rrh->reveal_cb (rrh->reveal_cb_cls,
                     response_code,
-		    TALER_JSON_get_error_code (j),
-		    0,
-		    NULL,
-		    NULL,
+                    TALER_JSON_get_error_code (j),
+                    0,
+                    NULL,
+                    NULL,
                     j);
   TALER_EXCHANGE_refresh_reveal_cancel (rrh);
 }
@@ -1616,7 +1611,7 @@ TALER_EXCHANGE_refresh_reveal (struct TALER_EXCHANGE_Handle *exchange,
                      json_array_append_new (link_sigs,
                                             GNUNET_JSON_from_data_auto (&link_sig)));
     }
-    
+
     GNUNET_free (pd.coin_ev);
   }
 
diff --git a/src/lib/testing_api_cmd_refresh.c b/src/lib/testing_api_cmd_refresh.c
index 155d30cee..71f3833fa 100644
--- a/src/lib/testing_api_cmd_refresh.c
+++ b/src/lib/testing_api_cmd_refresh.c
@@ -289,7 +289,7 @@ reveal_cb (void *cls,
            unsigned int http_status,
            enum TALER_ErrorCode ec,
            unsigned int num_coins,
-           const struct TALER_CoinSpendPrivateKeyP *coin_privs,
+           const struct TALER_PlanchetSecretsP *coin_privs,
            const struct TALER_DenominationSignature *sigs,
            const json_t *full_response)
 {
@@ -358,7 +358,8 @@ reveal_cb (void *cls,
         TALER_TESTING_interpreter_fail (rrs->is);
         return;
       }
-      fc->coin_priv = coin_privs[i];
+      fc->coin_priv = coin_privs[i].coin_priv;
+      fc->blinding_key = coin_privs[i].blinding_key;
       fc->sig.rsa_signature = GNUNET_CRYPTO_rsa_signature_dup
         (sigs[i].rsa_signature);
     }
-- 
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