加密解密類
//公鑰
    public function public_key()
    {
        $public_key = "-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC7F99EGpGmjREsoWqg++Lu+j90
qRtkxhNfP6RXJmOebeynN4qwpfKmKWm6YRXZUr1/HCRxaabpT20P23yB5ZTHOBYD
fxF65CO1GtXkrZmiGZRyvxjMlvK0iKmAtWe6pbjO0J0MyHZdjVs0BEZpG1GHlXpx
eKoUqwX3Ul3FhdLKpQIDAQAB
-----END PUBLIC KEY-----";
        return $public_key;
    }

    //私鑰
    public function private_key()
    {
        $private_key = "-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----";
        return $private_key;
    }

    //公鑰加密
    protected function publicEncrypt($public_key,$data){
        $encrypted = '';
        $pi_key = openssl_pkey_get_public($public_key);
        //最大允許加密長度為117，得分段加密
        $plainData = str_split($data, 117);//生成金鑰位數 1024 bit key
        foreach($plainData as $chunk){
            $partialEncrypted = '';
            $encryptionOk = openssl_public_encrypt($chunk,$partialEncrypted,$pi_key);//公鑰加密
            if($encryptionOk === false){
                return false;
            }
            $encrypted .= $partialEncrypted;
        }
        $encrypted = base64_encode($encrypted);//加密後的內容通常含有特殊字元，需要編碼轉換下，在網路間通過url傳輸時要注意base64編碼是否是url安全的
        return $encrypted;
    }

    //私鑰解密
    protected function privateDecrypt($private_key,$data){
        $decrypted = '';
        $pu_key = openssl_pkey_get_private($private_key);
        $plainData = str_split(base64_decode($data), 128);
        foreach($plainData as $chunk){
            $str = '';
            $decryptionOk = openssl_private_decrypt($chunk,$str,$pu_key);//私鑰解密
            if($decryptionOk === false){
                return false;
            }
            $decrypted .= $str;
        }
        return $decrypted;
    }

    //私鑰加密
    protected function privateEncrypt($private_key,$data){
        $encrypted = '';
        $pi_key =  openssl_pkey_get_private($private_key);//這個函式可用來判斷私鑰是否是可用的，可用返回資源id Resource id
        //最大允許加密長度為117，得分段加密
        $plainData = str_split($data, 100);//生成金鑰位數 1024 bit key
        foreach($plainData as $chunk){
            $partialEncrypted = '';
            $encryptionOk = openssl_private_encrypt($chunk,$partialEncrypted,$pi_key);//私鑰加密
            if($encryptionOk === false){
                return false;
            }
            $encrypted .= $partialEncrypted;
        }
        $encrypted = base64_encode($encrypted);//加密後的內容通常含有特殊字元，需要編碼轉換下，在網路間通過url傳輸時要注意base64編碼是否是url安全的
        return $encrypted;
    }

    //公鑰解密
    protected function publicDecrypt($public_key,$data){
        $decrypted = '';
        $pu_key = openssl_pkey_get_public($public_key);//這個函式可用來判斷公鑰是否是可用的
        $plainData = str_split(base64_decode($data), 128);//生成金鑰位數 1024 bit key
        foreach($plainData as $chunk){
            $str = '';
            $decryptionOk = openssl_public_decrypt($chunk,$str,$pu_key);//公鑰解密
            if($decryptionOk === false){
                return false;
            }
            $decrypted .= $str;
        }
        return $decrypted;
    }
 

加密解密具體方法

//公鑰加密
public function actionAa(){
    $data = Yii::$app->request->post();
    $datas = json_encode($data);
    $public_key = $this->public_key();
    $list = $this->publicEncrypt($public_key,$datas);
    p($list);
}

//私鑰解密
public function actionBb(){
    $data = Yii::$app->request->post();
    $private_key = $this->private_key();
    $list = $this->privateDecrypt($private_key,$data['data']);
    $datas = json_decode($list,true);
    return $datas;
}

//私鑰加密
public function actionCc()
{
    $data = Yii::$app->request->post();
    $datas = json_encode($data);
    $private_key = $this->private_key();
    $list = $this->privateEncrypt($private_key,$datas);
    return $list;
}

//公鑰解密
public function actionDd()
{
    $data = Yii::$app->request->post();
    $public_key = $this->public_key();
    $list = $this->publicDecrypt($public_key,$data['data']);
    p($list);die;
}