/**
* @param $app_id
*
* @return RSA_Process
*/
public static function instance($app_id)
{
if (is_null(self::$self)) {
self::$self = new self($app_id);
}
return self::$self;
}
/**
* 用私钥解密公钥加密内容
*
* @param string $data 要解密的数据
*
* @return string 解密后的字符串
*/
public function decodePublicEncode($data)
{
$data = str_replace(array_values($this->aReplace), array_keys($this->aReplace), $data);
$data = json_decode(base64_decode($data));
$result = '';
if (is_array($data) && count($data) > 0) {
foreach ($data as $tmp) {
openssl_private_decrypt(base64_decode($tmp), $decrypted, $this->oRSAProcess->getPriKeyId());
$result .= $decrypted;
unset($tmp);
}
}
unset($data);
if (strlen($result) > 0) {
return base64_decode($result);
}
return NULL;
}
/**
* 公钥加密
*
* @param string $data 要加密的数据
*
* @return string 加密后的字符串
*/
public function publicKeyEncode($data)
{
$aEncrypted = array();
$data = base64_encode($data);
$len = strlen($data);
for ($i = 0; $i < $len; $i += 50) {
$tmp = substr($data, $i, 50);
openssl_public_encrypt($tmp, $encrypted, $this->oRSAProcess->getPubKeyId());
$aEncrypted[] = base64_encode($encrypted);
unset($tmp);
unset($encrypted);
}
unset($data);
if (count($aEncrypted) > 0) {
$enCodeData = base64_encode(json_encode($aEncrypted));
$enCodeData = str_replace(array_keys($this->aReplace), array_values($this->aReplace), $enCodeData);
unset($aEncrypted);
return $enCodeData;
}
return NULL;
}