搞了一天,搜了好多资料,终于把公司接口RSA加密完成了,下面写一下完成的过程以及碰到的坑。
$config = array(
"config" => "C:/wamp64/bin/php/php5.6.16/extras/ssl/openssl.cnf",
"digest_alg" => "sha512",
"private_key_bits" => 1024,
"private_key_type" => OPENSSL_KEYTYPE_RSA,
);
// Create the private and public key
$res = openssl_pkey_new($config);
// Extract the private key from $res to $privKey
openssl_pkey_export($res, $privKey, NULL, $config);
echo "Private Key: ".$privKey. '<br />';
// Extract the public key from $res to $pubKey
$pubKey = openssl_pkey_get_details($res);
$pubKey = $pubKey["key"];
echo "Public Key: ".$pubKey. '<br />';
$data = 'token=coucou&tel=17600104539&url=https://www.coucouchina.com/Api/Index/manage?id=2';
echo "Data: ".$data. '<br />';
// Encrypt the data to $encrypted using the public key
openssl_public_encrypt($data, $encrypted, $pubKey);
$encrypted = base64_encode($encrypted);
echo "Encrypted: ".$encrypted. '<br />';
// Decrypt the data using the private key and store the results in $decrypted
$encrypted = base64_decode($encrypted);
openssl_private_decrypt($encrypted, $decrypted, $privKey);
echo "Decrypted: ".$decrypted. '<br />';
一:首先用上面的代码生成private key和public key
坑①:$config数组里面的路径不要填错
坑②:第15行的 $config 不要忘记填
二:在项目里面建立 rsa_public_key.pem 和 rsa_private_key.pem两个文件,把上一步生成的private key 和 public key 填入对应的文件之中
坑①:格式正确一定要,该换行换行,不然下面会死得很难看
class RSA {
private $pubKey = null;
private $priKey = null;
/**
* 构造函数
*
* @param string 公钥文件(验签和加密时传入)
* @param string 私钥文件(签名和解密时传入)
*/
public function __construct($public_key_file = '', $private_key_file = '')
{
if ($public_key_file) {
$this->_getPublicKey($public_key_file);
}
if ($private_key_file) {
$this->_getPrivateKey($private_key_file);
}
}
// 私有方法
/**
* 自定义错误处理
*/
private function _error($msg)
{
die('RSA Error:' . $msg); //TODO
}
/**
* 检测填充类型
* 加密只支持PKCS1_PADDING
* 解密支持PKCS1_PADDING和NO_PADDING
*
* @param int 填充模式
* @param string 加密en/解密de
* @return bool
*/
private function _checkPadding($padding, $type)
{
if ($type == 'en') {
switch ($padding) {
case OPENSSL_PKCS1_PADDING:
$ret = true;
break;
default:
$ret = false;
}
} else {
switch ($padding) {
case OPENSSL_PKCS1_PADDING:
case OPENSSL_NO_PADDING:
$ret = true;
break;
default:
$ret = false;
}
}
return $ret;
}
private function _encode($data, $code)
{
switch (strtolower($code)) {
case 'base64':
$data = base64_encode('' . $data);
break;
case 'hex':
$data = bin2hex($data);
break;
case 'bin':
default:
}
return $data;
}
private function _decode($data, $code)
{
switch (strtolower($code)) {
case 'base64':
$data = base64_decode($data);
break;
case 'hex':
$data = $this->_hex2bin($data);
break;
case 'bin':
default:
}
return $data;
}
private function _getPublicKey($file)
{
$key_content = $this->_readFile($file);
if ($key_content) {
$this->pubKey = openssl_get_publickey($key_content);
}
}
private function _getPrivateKey($file)
{
$key_content = $this->_readFile($file);
if ($key_content) {
$this->priKey = openssl_get_privatekey($key_content); //格式问题会导致返回数据为false
}
}
private function _readFile($file)
{
$ret = false;
if (!file_exists($file)) {
$this->_error("The file {$file} is not exists");
} else {
$ret = file_get_contents($file);
}
return $ret;
}
private function _hex2bin($hex = false)
{
$ret = $hex !== false && preg_match('/^[0-9a-fA-F]+$/i', $hex) ? pack("H*", $hex) : false;
return $ret;
}
/**
* 生成签名
*
* @param string 签名材料
* @param string 签名编码(base64/hex/bin)
* @return 签名值
*/
public function sign($data, $code = 'base64')
{
$ret = false;
if (openssl_sign($data, $ret, $this->priKey)) {
$ret = $this->_encode($ret, $code);
}
return $ret;
}
/**
* 验证签名
*
* @param string 签名材料
* @param string 签名值
* @param string 签名编码(base64/hex/bin)
* @return bool
*/
public function verify($data, $sign, $code = 'base64')
{
$ret = false;
$sign = $this->_decode($sign, $code);
if ($sign !== false) {
switch (openssl_verify($data, $sign, $this->pubKey)) {
case 1:
$ret = true;
break;
case 0:
case -1:
default:
$ret = false;
}
}
return $ret;
}
/**
* 加密
*
* @param string 明文
* @param string 密文编码(base64/hex/bin)
* @param int 填充方式(貌似php有bug,所以目前仅支持OPENSSL_PKCS1_PADDING)
* @return string 密文
*/
public function encrypt($data, $code = 'base64', $padding = OPENSSL_PKCS1_PADDING)
{
$ret = false;
if (!$this->_checkPadding($padding, 'en')) $this->_error('padding error');
if (openssl_public_encrypt($data, $result, $this->pubKey, $padding)) {
$ret = $this->_encode($result, $code);
}
return $ret;
}
/**
* 解密
*
* @param string 密文
* @param string 密文编码(base64/hex/bin)
* @param int 填充方式(OPENSSL_PKCS1_PADDING / OPENSSL_NO_PADDING)
* @param bool 是否翻转明文(When passing Microsoft CryptoAPI-generated RSA cyphertext, revert the bytes in the block)
* @return string 明文
*/
public function decrypt($data, $code = 'base64', $padding = OPENSSL_PKCS1_PADDING, $rev = false)
{
$ret = false;
$data = $this->_decode($data, $code);
if (!$this->_checkPadding($padding, 'de')) $this->_error('padding error');
if ($data !== false) {
if (openssl_private_decrypt($data, $result, $this->priKey, $padding)) {
$ret = $rev ? rtrim(strrev($result), "\0") : '' . $result;
}
}
return $ret;
}
}
![image.png](http://upload-images.jianshu.io/upload_images/421014-53cf0fc3cc0692da.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
![image.png](http://upload-images.jianshu.io/upload_images/421014-ceee292f9b07eadb.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
![image.png](http://upload-images.jianshu.io/upload_images/421014-761740c02d2a831d.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
![image.png](http://upload-images.jianshu.io/upload_images/421014-72141a3bdae8fba2.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
![image.png](http://upload-images.jianshu.io/upload_images/421014-e931ab21165cab59.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
$pubfile = 'C:\wamp64\www\coucou\rsa_public_key.pem';
$prifile = 'C:\wamp64\www\coucou\rsa_private_key.pem';
$rsa = new RSA($pubfile, $prifile);
$rst = array(
'ret' => 200,
'code' => 1,
'data' => array(1, 2, 3, 4, 5, 6),
'msg' => "success",
);
$ex = json_encode($rst);
//加密
$ret_e = $rsa->encrypt($ex);
//解密
$ret_d = $rsa->decrypt($ret_e);
echo $ret_e;
echo '<pre>';
echo $ret_d;
echo '<pre>';
$a = 'test';
//签名
$x = $rsa->sign($a);
//验证
$y = $rsa->verify($a, $x);
var_dump($x, $y);
exit;
三:这些代码主要用作加密和解密
坑①:第149行一定要注意
坑②:第255行跟256行的路径一定要对
ok,完成,YEAH!!