PHP的Openssl进行RSA加密与解密范例

1、/index.php?php/需要配置PHP.INI文件，打开extension=php_openssl.dllincludersaclass.php;/以下是一个简单的测试demo,如果不需要请删除$rsa=newRsa(D:rsa);/放项目的PHP目录/私钥加密，公钥解密echosource：Testing:HelloWorld!;$pre=$rsa-privEncrypt(Testing:HelloWorld!);echoPrivateEncrypted:.$pre.;$pud=$rsa-pubDecrypt($pre);echoPublicDecrypted:.$pud.;/公钥加密

2、，私钥解密echosource:workinginhere!;$pue=$rsa-pubEncrypt(workinginhere!);echoPublicEncrypt:.$pue.;$prd=$rsa-privDecrypt($pue);echoPrivateDecrypt:.$prd;?/rsaclass.php_keyPath=$path;*createthekeypair,savethekeyto$this-_keyPath*/publicfunctioncreateKey()$r=openssl_pkey_new();openssl_pkey_export($r,$privKey)

3、;file_put_contents($this-_keyPath.DIRECTORY_SEPARATOR.key.pem,$privKey);$this-_privKey=openssl_pkey_get_public($privKey);$rp=openssl_pkey_get_details($r);$pubKey=$rpkey;file_put_contents($this-_keyPath.DIRECTORY_SEPARATOR.pub.pem,$pubKey);$this-_pubKey=openssl_pkey_get_public($pubKey);/*setupthepriv

4、atekey*/publicfunctionsetupPrivKey()if(is_resource($this-_privKey)returntrue;$file=$this-_keyPath.DIRECTORY_SEPARATOR.key.pem;$prk=file_get_contents($file);$this-_privKey=openssl_pkey_get_private($prk);returntrue;/*setupthepublickey*/publicfunctionsetupPubKey()if(is_resource($this-_pubKey)returntrue

5、;$file=$this-_keyPath.DIRECTORY_SEPARATOR.pub.pem;$puk=file_get_contents($file);$this-_pubKey=openssl_pkey_get_public($puk);returntrue;*encryptwiththeprivatekey*/publicfunctionprivEncrypt($data)if(!is_string($data)returnnull;$this-setupPrivKey();$r=openssl_private_encrypt($data,$encrypted,$this-_pri

6、vKey);if($r)returnbase64_encode($encrypted);returnnull;/*decryptwiththeprivatekey*/publicfunctionprivDecrypt($encrypted)if(!is_string($encrypted)returnnull;$this-setupPrivKey();$encrypted=base64_decode($encrypted);$r=openssl_private_decrypt($encrypted,$decrypted,$this-_privKey);if($r)return$decrypte

7、d;returnnull;/*encryptwithpublickey*/publicfunctionpubEncrypt($data)if(!is_string($data)returnnull;$this-setupPubKey();$r=openssl_public_encrypt($data,$encrypted,$this-_pubKey);if($r)returnbase64_encode($encrypted);returnnull;/*decryptwiththepublickey*/publicfunctionpubDecrypt($crypted)if(!is_string

8、($crypted)returnnull;$this-setupPubKey();$crypted=base64_decode($crypted);$r=openssl_public_decrypt($crypted,$decrypted,$this-_pubKey);if($r)return$decrypted;returnnull;publicfunction_destruct()fclose($this-_privKey);fclose($this-_pubKey);?加密使用公钥，解密使用私钥签名使用私钥，验证使用公钥私钥可以导出公钥I产牛私钥I,指定位数1024,公钥指数e,通常是3,17,65537$opensslg