php教程|php手册
使用,openssl,实现,rsa,非对称,加密,算法,示例,这篇,文章,主要,介绍了,使用,openssl,实现,rs
php教程-php手册
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
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代码如下:
_keyPath = $path;
}
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/**
* 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);
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$rp = openssl_pkey_get_details($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
