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-rw-r--r--system/libraries/Encryption.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/system/libraries/Encryption.php b/system/libraries/Encryption.php
index 3ce9f1b95..bfc1e892a 100644
--- a/system/libraries/Encryption.php
+++ b/system/libraries/Encryption.php
@@ -845,7 +845,7 @@ class CI_Encryption {
return FALSE;
}
- isset($salt) OR $salt = str_repeat("\0", $this->_digests[$digest]);
+ strlen($salt) OR $salt = str_repeat("\0", $this->_digests[$digest]);
$prk = hash_hmac($digest, $key, $salt, TRUE);
$key = '';