PHP中使用OpenSSL來產生證書加密解密源代碼- -
??????????????????????????????????????
我想這段代碼足夠簡單，沒必要寫函數說明了吧。
該程序在linux+Apache 2.0 + PHP Version 4.2.2 中運行通過。
大致功能有：1。產生證書；2。使用RSA算法加密解密任意長度數據。
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/*
?* Class COPenSSLCrypt
?* Author? : pigo chu<pigo@ms5.url.com.tw>
?* Date??? : 2004-11-12
?* Version : 0.01
?* Revision History:
?*?Lihui Lei 2005-05-18
*/
class COpenSSLCrypt {
??? /* All member variable is private */
??? var $publicKey? = "";
??? var $privateKey = "";
??? var $resourcePubKey = NULL;
??? var $resourcePriKey = NULL;
??? var $lastError = "";
??? var $debugMode = false;
??? var $keyLength = 64;
??? var $config = NULL;
??? /*
???? * Construct Method
???? * if $dn is not null , then this class will Generate CSR with $dn
???? * NOTE $dn is an array like this :
???? *???? array(
???? *???????? "countryName" => "UK",
???? *???????? "stateOrProvinceName" => "Somerset",
???? *???????? "localityName" => "Glastonbury",
???? *???????? "organizationName" => "The Brain Room Limited",
???? *???????? "organizationalUnitName" => "PHP Documentation Team",
???? *???????? "commonName" => "Wez Furlong",
???? *???????? "emailAddress" => "wez@example.com"
???? *???????? );
???? */
??? function COpenSSLCrypt( $dn=NULL , $passphrase=NULL )
??? {
??????? if(is_array( $dn ))
??????? {
??????????? $this->GenerateKey($dn , $passphrase);
??????? }
??? }
??? /*
???? * Generate CSR and create all key , if $dn is NULL then use default dn to generate
???? */
??? function GenerateKey($dn=NULL , $config= NULL , $passphrase=NULL )
??? {
??????? if(!$dn)
??????? {
??????????? $dn = array(
??????????????? "countryName" => "CN",
??????????????? "stateOrProvinceName" => "BEIJING",
??????????????? "localityName" => "BeiJing",
??????????????? "organizationName" => "IVT Corporation",
??????????????? "organizationalUnitName" => "BlueSoleil Group",
??????????????? "commonName" => "??????????????? "emailAddress" => "support@bluesoleil.com"
??????????? );
??????? }
??????? $privkey = openssl_pkey_new();
???????
???? if (!$config)
???? {
???? ?$config = array(
??? ?"digest_alg" => "sha1",
??? ?"private_key_bits" => $keyLength,
??? ?"private_key_type" => OPENSSL_KEYTYPE_RSA,
??? ?"encrypt_key" => false
??? ?);
??}
??????? $csr = openssl_csr_new($dn, $privkey);
??????? $sscert = openssl_csr_sign($csr, null, $privkey, 365);
??????? echo "
CSR:
";
??????? openssl_csr_export($csr, $csrout);
??????? echo "
Certificate: public key
";
??????? openssl_x509_export($sscert, $certout);
??????? echo "
private key:
";
??????? if($passphrase != NULL){
??????????? openssl_pkey_export($privkey, $pkeyout, $passphrase);
??????? }else{
??????????? openssl_pkey_export($privkey, $pkeyout);
??????? }
??????? $this->setPublicKey($certout);
??????? $this->setPrivateKey($pkeyout);
??? }
?? /*
???? * Generate CSR and create all key , if $dn is NULL then use default dn to generate
???? */
??? function GenerateKeyToFile($csrFile=NULL, $certFile=NULL, $privkeyFile=NULL )
??? {
??? ?if (!csrFile or !certFile or !privkeyFile)
??? ?{
??? ??echo "
Please set key files' name and path.
";
??? ??return false;
??? ?}
??????? if(!$dn)
??????? {
??????????? $dn = array(
??????????????? "countryName" => "CN",
??????????????? "stateOrProvinceName" => "BEIJING",
??????????????? "localityName" => "BeiJing",
??????????????? "organizationName" => "IVT Corporation",
??????????????? "organizationalUnitName" => "BlueSoleil Group",
??????????????? "commonName" => "
??????????????? "emailAddress" => "
support@bluesoleil.com"
??????????? );
??????? }
???????
??????? $privkey = openssl_pkey_new();
??????? $csr = openssl_csr_new($dn, $privkey);
??????? $sscert = openssl_csr_sign($csr, null, $privkey, 365);
??????? openssl_csr_export_to_file($csr, $csrFile);//and debug_zval_dump($csrout);;
??????? openssl_x509_export_to_file($sscert, $certFile);???
??????? if($passphrase != NULL){
??????????? openssl_pkey_export_to_file($privkey, $privkeyFile, $passphrase);
??????? }else{
??????????? openssl_pkey_export_to_file($privkey, $privkeyFile);
??????? }
??????? return true;
??? }
??? function setPublicKey( $key )
??? {
??? ?$this->publicKey = $key;
??? ?if( !($this->resourcePubKey = @openssl_get_publickey($key)) )
??? ?{
??????????? $this->setDebug();
??????????? return false;
??? ?}
??? ?return true;
??? }
??? function setPrivateKey( $key , $passphrase="" )
??? {
??? ?$this->privateKey = $key;
??? ?if( !($this->resourcePriKey = @openssl_get_privatekey($key , $passphrase)) )
??? ?{
??????????? $this->setDebug();
??????????? return false;
??? ?}
??? ?return true;
??? }
??? function getPublicKey()
??? {
??????? return $this->publicKey;
??? }
??? function getPrivateKey()
??? {
??????? return $this->privateKey;
??? }
??? function encrypt( $source )
??? {
??????? if(!$this->resourcePubKey)
??????? {
??????????? $this->setDebug("decrypt(string) error : No Public Key Resource.\n");
??????????? return false;
??????? }
??? ?$ret = "";
??????? $len = strlen($source);
??????? echo "The encrypted source length is ". $len;
??????? /*
???????? * Why encrypt each 64 bytes ?
???????? * Because openssl_public_enrypt() can't encrypt large data
???????? * Anyone know why ?
???????? */
??????? for($i=0;$i<$len;$i+=64)
??????? {
??????????? if(!openssl_public_encrypt(substr($source,$i,64),$new_out,$this->resourcePubKey))
??????????? {
??????????? ?$errorText = "encrypt(string) error : " . openssl_error_string() . "\n";
??????????? ?$errorText.= "Data Dump : \n" . strtoupper(bin2hex($source)) ."\n";
??????????????? $this->setDebug( $errorText );
??????????????? return false;
??????????? }
??????????? $ret .= $new_out;
??????? }?
??????? return $ret;
??? }
?function publicEncrypt_keyFromFile($data, $publicKeyFile, $passphrase=NULL)
?{
??$fp=fopen($publicKeyFile, "r");
??$public_key=fread($fp,8192);
??fclose($fp);
??// $passphrase is required if your key is encoded (suggested)
??if($passphrase != NULL)
???$res = openssl_get_publickey($public_key);
??else
???$res = openssl_get_publickey($public_key);
??openssl_public_encrypt($data, $encrypted, $res);?
??return $encrypted;
?}
?function privateDecrypt_keyFromFile($data, $privateKeyFile, $passphrase=NULL)
?{
??$fp=fopen ($privateKeyFile,"r");
??$private_key=fread($fp,8192);
??fclose($fp);
??if($passphrase != NULL)
???openssl_get_privatekey($private_key, $passphrase);
??else
???openssl_get_privatekey($private_key);
???
??openssl_private_decrypt($data, $decrpted, $private_key);??
??return $decrpted;
?}
?
??? function decrypt( $cryptedData )
??? {
??????? if(!$this->resourcePriKey)
??????? {
??????????? $this->setDebug("decrypt(string) error : No Private Key Resource.\n");
??????????? return false;
??????? }
??? ?$ret = "";
??????? $len = strlen($cryptedData);
??????? /*
???????? * Why decrypt each 128 bytes?
???????? * Because openssl_private_decrypt can't decrypt large data.
???????? * And when use openssl_public_enrypt to crypt data . It will create a 128 bytes string(Encoded)
???????? */
??????? for($i=0;$i<$len;$i+=128)
??????? {
??????????? if(!openssl_private_decrypt(substr($cryptedData,$i,128),$new_out,$this->resourcePriKey))
??????????? {
??????????? ?$errorText = "decrypt(string) error : " . openssl_error_string() . "\n";
??????????? ?$errorText.= "Data Dump : \n" . strtoupper(bin2hex($cryptedData)) ."\n";
??????????????? $this->setDebug( $errorText );
??????????????? return false;
??????????? }
??????????? $ret .= $new_out;
??????? }?
??????? return $ret;
??? }
???
??? function setKeyLength( $bitNum=64 )
??? {
??? ?$keyLength = $bitNum;
??? }
???
??? function getLastError()
??? {
??????? return $this->lastError;
??? }
??? function setDebugMode( $bl=false )
??? {
??????? $this->debugMode = $bl;
??? }
??? function setDebug( $msg="" )
??? {
??????? if(!$msg)
??????????? $this->lastError = openssl_error_string();
??????? else
??????????? $this->lastError = $msg;
??????? if( $this->debugMode )
??????????? echo $this->lastError;
??? }???
}
//echo phpinfo();
echo "
Openssl Encrypt/Decrypt Example:
";
// use a large data for test
$testStr= <<
This a php script, you cannot see it.
EOT;
// Now I am server
$server_ssl = new COpenSSLCrypt;
$server_ssl->setDebugMode(true);
//Generate Key File.
$ret = $server_ssl->GenerateKeyToFile("/home/test/cert.csr",
????"/home/test/cert.pem",
????"/home/test/privkey.pem");
if (!$ret)
?echo "
Error to generate key.";
?
echo "
The plain text is:
".$testStr;?
// Start Encrpt process at the server end.
echo "
The encrpyted result is:
";
$cryptedData = $server_ssl->publicEncrypt_keyFromFile($testStr, "/home/test/cert.pem");
echo $cryptedData;
// Start Decrpt process at the client end.
echo "
The decrpyted result is:
";
$decryptedData = $server_ssl->privateDecrypt_keyFromFile($cryptedData, "/home/test/privkey.pem");
echo $decryptedData;
/*// Now I ma client
$client_ssl = new COpenSSLCrypt;
$client_ssl->setDebugMode(true);
$client_ssl->GenerateKeyToFile("/home/test/cert.csr",
????"/home/test/cert.pem",
????"/home/test/privkey.pem");
// Now I am server , and client send a public key to me
$client_public_key = $client_ssl->getPublicKey();
$server_ssl->setPublicKey( $client_public_key );
$cryptedText = $server_ssl->encrypt($testStr);
// Now I am client , and I will decrypt $cryptedText
echo "The encrypted length is ". strlen($cryptedText) . "
";
$dumpData = strtoupper(bin2hex($cryptedText));
echo "Dump CryptedText :".? $dumpData. "
";
echo "The encrypted length is ". strlen($dumpData) . "
";
echo "Decrypt Text : ". $client_ssl->decrypt( $cryptedText ) . "
"
// Now I am server
$server_ssl = new COpenSSLCrypt;
$server_ssl->setDebugMode(true);
// Now I ma client
$client_ssl = new COpenSSLCrypt;
$client_ssl->setDebugMode(true);
$client_ssl->GenerateKeyToFile("/home/test/cert.pem",
???????"/home/test/cert.pem",
???????"/home/test/privkey.pem");
// Now I am server , and client send a public key to me
$client_public_key = $client_ssl->getPublicKey();
$server_ssl->setPublicKey( $client_public_key );
$cryptedText = $server_ssl->encrypt($testStr);
// Now I am client , and I will decrypt $cryptedText
echo "The encrypted length is ". strlen($cryptedText) . "
";
$dumpData = strtoupper(bin2hex($cryptedText));
echo "Dump CryptedText :".? $dumpData. "
";
echo "The encrypted length is ". strlen($dumpData) . "
";
echo "Decrypt Text : ". $client_ssl->decrypt( $cryptedText ) . "
"
*/
?>