Tickets :: Comment on [#14231] Log in into Horde Groupware from another website

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Comment	>> Changes have been made in Git (master): >> >> commit d9defefe7c671d3b3f72e4a8e6627e168f0d5da1 >> Author: Jan Schneider <jan@horde.org> >> Date: Fri Feb 12 11:40:39 2016 +0100 >> >> Don't use local cipher caches if the key changed (Bug #14231). >> >> framework/Core/lib/Horde/Core/Secret/Cbc.php \| 3 ++- >> framework/Core/package.xml \| 4 ++-- >> framework/Secret/lib/Horde/Secret.php \| 3 ++- >> framework/Secret/package.xml \| 4 ++-- >> 4 files changed, 8 insertions(+), 6 deletions(-) >> >> http://github.com/horde/horde/commit/d9defefe7c671d3b3f72e4a8e6627e168f0d5da1 > > > Hello Jan, > > Please correct me if I am wrong. When I was developing the solution I > saw that this modification was not needed for > /Secret/lib/Horde/Secret.php because of how the index "idx" is > calculated: > > $idx = hash('md5', $key); > > The index depends on $key, so if $key has a different value than > before, $idx will have a different value, leading to > $this->_cipherCache[$idx] being empty, causing another > Horde_Crypt_Blowfish object being created with the new $key. > > In Cbc.php the index of _cipherCache[self::HORDE_KEYNAME] is a > constant, so a change in $key would not lead to the creating of a new > Horde_Crypt_Blowfish object with the new value. > > This is why this bug did not happen before the addition of the Cbc > encryption. > > Best regards, > > Lucas Barros Araújo
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