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authorAndrey Andreev <narf@devilix.net>2016-03-22 12:42:03 +0100
committerAndrey Andreev <narf@devilix.net>2016-03-22 12:42:03 +0100
commit4d2628e8aab6d0673ac0a010acbfaa9d76b7d568 (patch)
treeb3cac7e3e06b8ac4c56d771cc83b5df53eca1231 /system/core/compat/password.php
parent86758e1003e6ce44b205d2eb104318a309fd92ab (diff)
random_bytes()-related improvements
See #4260
Diffstat (limited to 'system/core/compat/password.php')
-rw-r--r--system/core/compat/password.php26
1 files changed, 22 insertions, 4 deletions
diff --git a/system/core/compat/password.php b/system/core/compat/password.php
index f0c22c780..76dd2cf0a 100644
--- a/system/core/compat/password.php
+++ b/system/core/compat/password.php
@@ -116,13 +116,21 @@ if ( ! function_exists('password_hash'))
}
elseif ( ! isset($options['salt']))
{
- if (defined('MCRYPT_DEV_URANDOM'))
+ if (function_exists('random_bytes'))
{
- $options['salt'] = mcrypt_create_iv(16, MCRYPT_DEV_URANDOM);
+ try
+ {
+ $options['salt'] = random_bytes(16);
+ }
+ catch (Exception $e)
+ {
+ log_message('error', 'compat/password: Error while trying to use random_bytes(): '.$e->getMessage());
+ return FALSE;
+ }
}
- elseif (function_exists('openssl_random_pseudo_bytes'))
+ elseif (defined('MCRYPT_DEV_URANDOM'))
{
- $options['salt'] = openssl_random_pseudo_bytes(16);
+ $options['salt'] = mcrypt_create_iv(16, MCRYPT_DEV_URANDOM);
}
elseif (DIRECTORY_SEPARATOR === '/' && (is_readable($dev = '/dev/arandom') OR is_readable($dev = '/dev/urandom')))
{
@@ -148,6 +156,16 @@ if ( ! function_exists('password_hash'))
fclose($fp);
}
+ elseif (function_exists('openssl_random_pseudo_bytes'))
+ {
+ $is_secure = NULL;
+ $options['salt'] = openssl_random_pseudo_bytes(16, $is_secure);
+ if ($is_secure !== TRUE)
+ {
+ log_message('error', 'compat/password: openssl_random_pseudo_bytes() set the $cryto_strong flag to FALSE');
+ return FALSE;
+ }
+ }
else
{
log_message('error', 'compat/password: No CSPRNG available.');