这篇文章主要介绍了使用openssl实现rsa非对称加密算法的示例，大家参考使用吧
代码如下: _keyPath = $path; } /** * create the key pair,save the key to $this->_keyPath */ public function createKey() { $r = openssl_pkey_new(); openssl_pkey_export($r, $privKey); file_put_contents($this->_keyPath . DIRECTORY_SEPARATOR . 'priv.key', $privKey); $this->_privKey = openssl_pkey_get_public($privKey); $rp = openssl_pkey_get_details($r); $pubKey = $rp['key']; file_put_contents($this->_keyPath . DIRECTORY_SEPARATOR . 'pub.key', $pubKey); $this->_pubKey = openssl_pkey_get_public($pubKey); } /** * setup the private key */ public function setupPrivKey() { if(is_resource($this->_privKey)){ return true; } $file = $this->_keyPath . DIRECTORY_SEPARATOR . 'priv.key'; $prk = file_get_contents($file); $this->_privKey = openssl_pkey_get_private($prk); return true; } /** * setup the public key */ public function setupPubKey() { if(is_resource($this->_pubKey)){ return true; } $file = $this->_keyPath . DIRECTORY_SEPARATOR . 'pub.key'; $puk = file_get_contents($file); $this->_pubKey = openssl_pkey_get_public($puk); return true; } /** * encrypt with the private key */ public function privEncrypt($data) { if(!is_string($data)){ return null; } $this->setupPrivKey(); $r = openssl_private_encrypt($data, $encrypted, $this->_privKey); if($r){ return base64_encode($encrypted); } return null; } /** * decrypt with the private key */ public function privDecrypt($encrypted) { if(!is_string($encrypted)){ return null; } $this->setupPrivKey(); $encrypted = base64_decode($encrypted); $r = openssl_private_decrypt($encrypted, $decrypted, $this->_privKey); if($r){ return $decrypted; } return null; } /** * encrypt with public key */ public function pubEncrypt($data) { if(!is_string($data)){ return null; } $this->setupPubKey(); $r = openssl_public_encrypt($data, $encrypted, $this->_pubKey); if($r){ return base64_encode($encrypted); } return null; } /** * decrypt with the public key */ public function pubDecrypt($crypted) { if(!is_string($crypted)){ return null; } $this->setupPubKey(); $crypted = base64_decode($crypted); $r = openssl_public_decrypt($crypted, $decrypted, $this->_pubKey); if($r){ return $decrypted; } return null; } public function __destruct() { @ fclose($this->_privKey); @ fclose($this->_pubKey); } } //以下是一个简单的测试demo，如果不需要请删除 $rsa = new Rsa('ssl-key'); //私钥加密，公钥解密 echo 'source：我是老鳖
