This reverts commit c441f9c9.

It looks like mb_substr() doesn’t cope well with NULL as the third parameter in PHP 5.3.

IVs must be random and one-time (never reused). Additionally, by deriving it from the key, the key length was effectively reduced to 128 bits.

Use it when constant-time comparisons are needed to avoid side-channel attacks.

This resolves #476.

Issue a notice when the option is used nonetheless.

Closes: #432

Reimplement \SimpleSAML\Utils\Crypto::aesDecrypt() and \SimpleSAML\Utils\Crypto::aesEncrypt() to use openssl instead of mcrypt. This removes the direct dependency on mcrypt and closes #228.

Move the aes[En|De]crypt() functionality in \SimpleSAML\Utils\Crypto to internal methods where the secret is passed as a parameter. Then we don't need a working configuration to test the functionality.

Use InvalidArgumentException instead of SimpleSAML_Error_Exception when dealing with wrong input parameters.

Move SimpleSAML_Utilities::resolveCert() to SimpleSAML\Utils\Config::getCertPath() and deprecate the former.

Move SimpleSAML_Utilities::getSecretSalt() to SimpleSAML_Utils_Config::getSecretSalt(). Deprecate the former and stop using it.

Mark the old ones as deprecated and schedule them for removal in 2.0.

Mark the old ones as deprecated and schedule them for removal in 2.0.

Reformat SimpleSAML_Utils_Crypto. Remove SimpleSAML_Utils_Crypto::apr1Md5Hash() and SimpleSAML_Utils_Crypto::apr1Md5Valid(), since we are using now an external library for that.

Remove more legacy code that's no longer necessary since we are requiring PHP >= 5.3.0. Deprecate SimpleSAML_Utilities::generateRandomBytesMTrand().

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3362 44740490-163a-0410-bde0-09ae8108e29a

Thanks to Dyonisius Visser for implementing this!

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2974 44740490-163a-0410-bde0-09ae8108e29a

Avoid using the short tag style, since it may be disabled. Thanks to
Thijs Kinkhorst for identifying this bug.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2973 44740490-163a-0410-bde0-09ae8108e29a

Thanks to Dyonisius Visser for implementing this.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2962 44740490-163a-0410-bde0-09ae8108e29a