[taler-exchange] branch master updated: add TODO

[gnunet]

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grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 7242b9b9 add TODO
7242b9b9 is described below

commit 7242b9b9607995ad7358fa59e27dd5ff6f57ca9f
Author: Christian Grothoff <address@hidden>
AuthorDate: Fri Jan 17 13:10:42 2020 +0100

    add TODO
---
 src/auditor/taler-auditor-httpd_deposit-confirmation.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/auditor/taler-auditor-httpd_deposit-confirmation.c 
b/src/auditor/taler-auditor-httpd_deposit-confirmation.c
index 4c80d8aa..4a8890e9 100644
--- a/src/auditor/taler-auditor-httpd_deposit-confirmation.c
+++ b/src/auditor/taler-auditor-httpd_deposit-confirmation.c
@@ -67,6 +67,11 @@ verify_and_execute_deposit_confirmation (struct 
MHD_Connection *connection,
                                        
TALER_EC_DEPOSIT_CONFIRMATION_SIGNATURE_INVALID,
                                        "master_sig (expired)");
   }
+
+  /* TODO: consider having an in-memory cache of already
+     verified exchange signing keys, this could save us
+     a signature check AND a database transaction per
+     operation. */
   /* check exchange signing key signature */
   skv.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY);
   skv.purpose.size = htonl (sizeof (struct 
TALER_ExchangeSigningKeyValidityPS));

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