Question

How to generate and verify BCrypt hash password in PHP

Answer 1

function generateBCryptHash($password) 
{
    if (defined("CRYPT_BLOWFISH") && CRYPT_BLOWFISH) 
    {
        $salt = '$2y$11$' . substr(md5(uniqid(rand(), true)), 0, 22);
        
        return crypt($password, $salt);
    }
}

function verifyBCryptHash($password, $hashedPassword) 
{
    return crypt($password, $hashedPassword) == $hashedPassword;
}

$password = 12345;
$s = generateBCryptHash($password);

echo $s . "<br />";

if (verifyBCryptHash($password, $s))
    echo "success";
else
    echo "password error";
    


/*
run:
    
$2y$11$389616e69394962a4b94bun2QPErcb81tE.y7DOO69eyzDRHVp5b2
success 
      
*/

 

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