PHP generates certificates, keys and encrypts and decrypts data through OpenSSL-PHP Tutorial-php.cn

PHP generates certificates, keys and encrypts and decrypts data through OpenSSL

WBOY

Release： 2016-07-25 08:45:16

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There is really little information about PHP generating certificate keys. After searching for a long time, I finally found the relevant information in the official documents. Based on my own understanding, I compiled the following code, which is divided into two parts: generating certificate keys and encryption. Decrypt data. Just copy it and make two files and run them. Detailed comments have been written, I believe all PHP programmers can understand them.

generate.php

$dn = array(
"countryName" => 'XX', //Name of the country where you are located

"stateOrProvinceName" => 'State', //Name of the province where you are located

"localityName" => 'SomewhereCity', //The name of the city

"organizationName" => 'MySelf', //The name of the registrant

"organizationalUnitName" => 'Whatever', //The name of the organization

"commonName " => 'mySelf', //Public name

"emailAddress" => 'user@domain.com' //Email

);

$privkeypass = '111111'; //Private key password

$numberofdays = 365; //Validity period

$cerpath = "./test.cer"; //Generate certificate path

$pfxpath = "./test.pfx"; //Key file path

//Generate certificate

$ privkey = openssl_pkey_new();

$csr = openssl_csr_new($dn, $privkey);

$sscert = openssl_csr_sign($csr, null, $privkey, $numberofdays);

openssl_x509_export($sscert, $csrkey); //Export Certificate $csrkey

openssl_pkcs12_export($sscert, $privatekey, $privkey, $privkeypass); //Export key $privatekey

//Generate certificate file

$fp = fopen($cerpath, "w");

fwrite($ fp, $csrkey);

fclose($fp);

//Generate key file

$fp = fopen($pfxpath, "w");

fwrite($fp, $privatekey);

fclose($fp) ;

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crypt.php

$privkeypass = '111111'; //Private key password
$pfxpath = " ./test.pfx"; //Key file path
$priv_key = file_get_contents($pfxpath); //Get key file contents
$data = "test"; //Encrypted data test test

//Private key Encryption
openssl_pkcs12_read($priv_key, $certs, $privkeypass); //Read public key and private key
$prikeyid = $certs['pkey']; //Private key
openssl_sign($data, $signMsg, $prikeyid ,OPENSSL_ALGO_SHA1); //Register to generate encrypted information
$signMsg = base64_encode($signMsg); //base64 transcoded encrypted information

//Public key decryption
$unsignMsg=base64_decode($signMsg);//base64 decoded encryption Information
openssl_pkcs12_read($priv_key, $certs, $privkeypass); //Read public key and private key
$pubkeyid = $certs['cert']; //Public key
$res = openssl_verify($data, $unsignMsg , $pubkeyid); //Verification
echo $res; //Output the verification result, 1: verification successful, 0: verification failed
?>
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Encryption and decryption, PHP, OpenSSL