31 lines
964 B
PHP
31 lines
964 B
PHP
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<?php
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function getHashedString($password) {
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# Inspired by http://alias.io/2010/01/store-passwords-safely-with-php-and-mysql/
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# A higher $cost is more secure but consumes more processing power
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$cost = 10;
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# Create a random salt
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if (extension_loaded('openssl')) {
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$salt = strtr(substr(base64_encode(openssl_random_pseudo_bytes(17)),0,22), '+', '.');
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} elseif (extension_loaded('mcrypt')) {
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$salt = strtr(substr(base64_encode(mcrypt_create_iv(17, MCRYPT_DEV_URANDOM)),0,22), '+', '.');
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} else {
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$salt = "";
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for ($i = 0; $i < 22; $i++) {
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$salt .= substr("./ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789", mt_rand(0, 63), 1);
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}
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}
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# Prefix information about the hash so PHP knows how to verify it later.
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# "$2a$" Means we're using the Blowfish algorithm. The following two digits are the cost parameter.
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$salt = sprintf("$2a$%02d$", $cost) . $salt;
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# Hash the password with the salt
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return crypt($password, $salt);
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}
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?>
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