[taler-exchange] branch master updated: -fix TOTP calculation

[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 cc34502a -fix TOTP calculation
cc34502a is described below

commit cc34502ac11a0fc77eb68a469b037fe2e2ee6c20
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Wed May 10 01:13:45 2023 +0200

    -fix TOTP calculation
---
 src/util/crypto_confirmation.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/util/crypto_confirmation.c b/src/util/crypto_confirmation.c
index bbdf701e..a238d537 100644
--- a/src/util/crypto_confirmation.c
+++ b/src/util/crypto_confirmation.c
@@ -102,7 +102,7 @@ compute_totp (struct GNUNET_TIME_Timestamp ts,
 
     offset = hmac[sizeof (hmac) - 1] & 0x0f;
     for (int count = 0; count < 4; count++)
-      code |= hmac[offset + 3 - count] << (8 * count);
+      code |= ((uint32_t) hmac[offset + 3 - count]) << (8 * count);
     code &= 0x7fffffff;
     /* always use 8 digits (maximum) */
     code = code % 100000000;

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