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21 lines
680 B
PHP
21 lines
680 B
PHP
<?php
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namespace OAuth2\Util;
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class SecureKey
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{
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public static function make($len = 40)
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{
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// We generate twice as many bytes here because we want to ensure we have
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// enough after we base64 encode it to get the length we need because we
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// take out the "/", "+", and "=" characters.
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$bytes = openssl_random_pseudo_bytes($len * 2, $strong);
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// We want to stop execution if the key fails because, well, that is bad.
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if ($bytes === false || $strong === false) {
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throw new Exception('Error Generating Key');
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}
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return substr(str_replace(['/', '+', '='], '', base64_encode($bytes)), 0, $len);
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}
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} |