Created
December 8, 2011 17:38
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<?php | |
/** | |
* Gera um salt aleatório | |
* | |
* @param int $tamanho Tamanho do salt | |
* | |
* @return string | |
*/ | |
function geraSaltAleatorio($tamanho = 22) { | |
return substr(sha1(mt_rand()), 0, $tamanho); | |
} | |
$salt = geraSaltAleatorio(); | |
// Senha do usuário, pode ter vindo do $_POST, $_GET ou outro lugar | |
$senha = 'olá mundo'; | |
// Cria um hash | |
$hash = md5($senha . $salt); | |
// Encripta esse hash 1000 vezes | |
for ($i = 0; $i < 1000; $i++) { | |
$hash = md5($hash); | |
} | |
// Salvamos $hash e $salt no banco de dados |
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