180 lines
4.2 KiB
PHP
Executable File
180 lines
4.2 KiB
PHP
Executable File
<?php
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namespace fast;
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/**
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* RSA签名类
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*/
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class Rsa
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{
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public $publicKey = '';
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public $privateKey = '';
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private $_privKey;
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/**
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* * private key
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*/
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private $_pubKey;
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/**
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* * public key
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*/
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private $_keyPath;
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/**
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* * the keys saving path
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*/
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/**
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* * the construtor,the param $path is the keys saving path
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* @param string $publicKey 公钥
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* @param string $privateKey 私钥
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*/
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public function __construct($publicKey = null, $privateKey = null)
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{
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$this->setKey($publicKey, $privateKey);
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}
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/**
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* 设置公钥和私钥
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* @param string $publicKey 公钥
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* @param string $privateKey 私钥
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*/
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public function setKey($publicKey = null, $privateKey = null)
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{
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if (!is_null($publicKey)) {
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$this->publicKey = $publicKey;
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}
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if (!is_null($privateKey)) {
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$this->privateKey = $privateKey;
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}
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}
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/**
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* * setup the private key
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*/
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private function setupPrivKey()
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{
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if (is_resource($this->_privKey)) {
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return true;
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}
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$pem = chunk_split($this->privateKey, 64, "\n");
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$pem = "-----BEGIN PRIVATE KEY-----\n" . $pem . "-----END PRIVATE KEY-----\n";
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$this->_privKey = openssl_pkey_get_private($pem);
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return true;
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}
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/**
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* * setup the public key
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*/
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private function setupPubKey()
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{
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if (is_resource($this->_pubKey)) {
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return true;
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}
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$pem = chunk_split($this->publicKey, 64, "\n");
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$pem = "-----BEGIN PUBLIC KEY-----\n" . $pem . "-----END PUBLIC KEY-----\n";
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$this->_pubKey = openssl_pkey_get_public($pem);
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return true;
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}
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/**
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* * encrypt with the private key
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*/
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public function privEncrypt($data)
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{
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if (!is_string($data)) {
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return null;
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}
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$this->setupPrivKey();
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$r = openssl_private_encrypt($data, $encrypted, $this->_privKey);
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if ($r) {
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return base64_encode($encrypted);
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}
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return null;
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}
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/**
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* * decrypt with the private key
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*/
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public function privDecrypt($encrypted)
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{
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if (!is_string($encrypted)) {
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return null;
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}
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$this->setupPrivKey();
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$encrypted = base64_decode($encrypted);
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$r = openssl_private_decrypt($encrypted, $decrypted, $this->_privKey);
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if ($r) {
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return $decrypted;
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}
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return null;
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}
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/**
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* * encrypt with public key
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*/
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public function pubEncrypt($data)
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{
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if (!is_string($data)) {
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return null;
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}
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$this->setupPubKey();
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$r = openssl_public_encrypt($data, $encrypted, $this->_pubKey);
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if ($r) {
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return base64_encode($encrypted);
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}
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return null;
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}
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/**
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* * decrypt with the public key
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*/
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public function pubDecrypt($crypted)
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{
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if (!is_string($crypted)) {
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return null;
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}
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$this->setupPubKey();
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$crypted = base64_decode($crypted);
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$r = openssl_public_decrypt($crypted, $decrypted, $this->_pubKey);
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if ($r) {
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return $decrypted;
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}
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return null;
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}
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/**
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* 构造签名
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* @param string $dataString 被签名数据
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* @return string
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*/
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public function sign($dataString)
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{
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$this->setupPrivKey();
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$signature = false;
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openssl_sign($dataString, $signature, $this->_privKey);
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return base64_encode($signature);
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}
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/**
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* 验证签名
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* @param string $dataString 被签名数据
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* @param string $signString 已经签名的字符串
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* @return number 1签名正确 0签名错误
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*/
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public function verify($dataString, $signString)
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{
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$this->setupPubKey();
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$signature = base64_decode($signString);
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$flg = openssl_verify($dataString, $signature, $this->_pubKey);
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return $flg;
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}
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public function __destruct()
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{
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is_resource($this->_privKey) && @openssl_free_key($this->_privKey);
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is_resource($this->_pubKey) && @openssl_free_key($this->_pubKey);
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}
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}
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