php 生成公钥私钥

//http://www.lampol-blog.com/detail/aid/ZDk5MmFNZ2pJL1pROW5QZU9KZ2FWdVlFTDVHRnRmZm4rNDMzSFlHNg%3D%3D 各种秘钥生成的教程

//生成密钥

$opensslConfigPath = "D:\phpstudy\PHPTutorial\Apache\conf\openssl.cnf";    

$config = array(

    "digest_alg" => "sha512",

    "private_key_bits" =>2048,

    "private_key_type" => OPENSSL_KEYTYPE_RSA,

    'config'=> $opensslConfigPath

);

//创建密钥对    一定要同步生成  秘钥存储格式也应该正确 

例如：/***"-----BEGIN PUBLIC KEY-----

MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAplkILBn2LiwpjLvNUqPO

pgNPWDE0xcFBuJKASUND9kPoQ19i5zyue9rSRsvxO9weTkrKi5CEaJxfftSj4YFG

2BXvDmYKCua34Zz2zmjRwTZzX+2gzXicttwxzxNKs8ImNipSstnfot6401Ccp/Vk

ib4eVmhyAV/jMCaauGLsM5dr+Pn+IeHYsykJyaI9Hz4rUed/6LHzUlTKIZcitAyG

1k+Lxl2J1DxY9nZE7PF9wWt9dzX44pCOOKOadLyz9r980RhFF7OsYggoByNu1d8D

VzAqKqHlsNm/iT8623MdgjPKp76dpgPGe947ggLfXC/KIkn880izqEU+pkOMd8sO

UQIDAQAB

-----END PUBLIC KEY-----"***/

$res = openssl_pkey_new($config);

//生成私钥

openssl_pkey_export($res, $privkey, null, $config);

//生成公钥

$pubKey = openssl_pkey_get_details($res)['key'];

print_r($privkey);

echo '

1

';

print_r($pubKey);

file_put_contents('private.key',$privkey);

file_put_contents('public.key',$pubKey);

//要加密的数据$data = "Web site:http://www.04007.cn";

echo '加密的数据：'.$data."\n";//私钥加密后的数据

openssl_private_encrypt($data,$encrypted,$private_key);//加密后的内容通常含有特殊字符，需要base64编码转换下

$encrypted = base64_encode($encrypted);

echo "私钥加密后的数据:".$encrypted."\n"; 

 //公钥解密 openssl_public_decrypt(base64_decode($encrypted), $decrypted, $public_key);

echo "公钥解密后的数据:".$decrypted,"\n-------------------------------\n";

  //----相反操作。公钥加密 openssl_public_encrypt($data, $encrypted, $public_key);

$encrypted = base64_encode($encrypted); 

echo "公钥加密后的数据:".$encrypted."\n"; 

openssl_private_decrypt(base64_decode($encrypted), $decrypted, $private_key);//私钥解密  

echo "私钥解密后的数据:".$decrypted."\n";

?>