PHP的Openssl進(jìn)行 RSA 加密與解密范例

1、精選文檔/index.php<?php/需要配置PHP.INI文件，打開extension=php_openssl.dllinclude 'rsaclass.php'/以下是一個(gè)簡(jiǎn)潔的測(cè)試demo，假如不需要請(qǐng)刪除$rsa = new Rsa('D:.rsa'); /放項(xiàng)目的PHP名目 /私鑰加密，公鑰解密echo 'source：Testing:Hello World!<br />'$pre = $rsa->privEncrypt('Testing:Hello World!');echo 'Pri

2、vate Encrypted:' . $pre . '<br />' $pud = $rsa->pubDecrypt($pre);echo 'Public Decrypted:' . $pud . '<br />' /公鑰加密，私鑰解密echo 'source:working in here!<br />'$pue = $rsa->pubEncrypt('working in here!');echo 'Public Encrypt:' . $

3、pue . '<br />' $prd = $rsa->privDecrypt($pue);echo 'Private Decrypt:' . $prd;?>/rsaclass.php<?php/* * 使用openssl實(shí)現(xiàn)非對(duì)稱加密 */class Rsa private $_privKey;/* private key*/ private $_pubKey;/* public key*/ private $_keyPath;/* the keys saving path*/ /* * the construtor,the pa

4、ram $path is the keys saving path */public function _construct($path)if(empty($path) | !is_dir($path)throw new Exception('Must set the keys save path'); $this->_keyPath = $path;/* * create the key pair,save the key to $this->_keyPath */public function createKey()$r = openssl_pkey_new()

5、;openssl_pkey_export($r, $privKey);file_put_contents($this->_keyPath . DIRECTORY_SEPARATOR . 'key.pem', $privKey);$this->_privKey = openssl_pkey_get_public($privKey); $rp = openssl_pkey_get_details($r);$pubKey = $rp'key'file_put_contents($this->_keyPath . DIRECTORY_SEPARATOR

6、 . 'pub.pem', $pubKey);$this->_pubKey = openssl_pkey_get_public($pubKey);/* * setup the private key */public function setupPrivKey()if(is_resource($this->_privKey)return true;$file = $this->_keyPath . DIRECTORY_SEPARATOR . 'key.pem'$prk = file_get_contents($file);$this->_

7、privKey = openssl_pkey_get_private($prk);return true; /* * setup the public key */public function setupPubKey()if(is_resource($this->_pubKey)return true;$file = $this->_keyPath . DIRECTORY_SEPARATOR . 'pub.pem'$puk = file_get_contents($file);$this->_pubKey = openssl_pkey_get_public(

8、$puk);return true; /* * encrypt with the private key */public function privEncrypt($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 ke

9、y */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 functi

10、on 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 nul

11、l; $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);?>加密使用 公鑰， 解密使用 私鑰簽名使用 私鑰， 驗(yàn)證使用 公鑰私鑰 可以導(dǎo)出 公鑰產(chǎn)生私鑰， 指定位數(shù)1024， 公鑰指數(shù)e, 通常是3, 17,