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Example of implementing rsa asymmetric encryption algorithm using openssl_PHP tutorial

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This article mainly introduces the example of using openssl to implement the rsa asymmetric encryption algorithm. Please refer to it

 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
'; $pre = $rsa->privEncrypt('我是老鳖'); echo 'private encrypted:
' . $pre . '
';   $pud = $rsa->pubDecrypt($pre); echo 'public decrypted:' . $pud . '
';   //公钥加密,私钥解密 echo 'source:干IT的
'; $pue = $rsa->pubEncrypt('干IT的'); echo 'public encrypt:
' . $pue . '
';   $prd = $rsa->privDecrypt($pue); echo 'private decrypt:' . $prd; ?>     需要注意的是apache要支持OpenSSL  

www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/727549.htmlTechArticleThis article mainly introduces the example of using openssl to implement the rsa asymmetric encryption algorithm. Please refer to the following code: ?php/*** Use openssl to implement asymmetric encryption* @since 2010-07-08*...
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