PHP based OpenSSL RSA encryption and decryption example _php tips

The example in this article describes the RSA encryption decryption based on OpenSSL in PHP. Share to everyone for your reference, specific as follows:

 <?php $config = Array (//"config" => "d:/phpserver/lighttpd/openssl.cnf",//"
Config ' => ' d:/phpstudy/lighttpd/openssl.cnf ', ' private_key_bits ' => 1024,//Size of key.
' Private_key_type ' => openssl_keytype_rsa);
$res = Openssl_pkey_new ();
$res = Openssl_pkey_new ($config);
Get private key//Openssl_pkey_export ($res, $privkey, "passphrase number 1");
Openssl_pkey_export ($res, $privkey);
Var_dump ($privkey);
Get public key $pubkey =openssl_pkey_get_details ($res);
echo "------------><br/>";
Print_r ($pubkey ["RSA"]);
$bin _str= $pubkey ["RSA"] ["N"];
Print_r ($bin _str);
echo "<br/>";
echo $bin _hex_str = Pack ("h*", Bin2Hex ($bin _str));
echo $bin _hex_str = Bin2Hex ($bin _str);
 echo "<br/>------------<<br/>";
$pubkey = $pubkey ["Key"];
Var_dump ($privkey);
Var_dump ($pubkey); echo $privkey. "
<br/><br/> "; echo $pubkey. " <br/><br/> ";?> 

<?php $private _key = '-----BEGIN RSA private Key-----miicxqibaakbgqdnsq4ampze01mpeo9dabrdss0xwxkekefuowjnefg+ Na6p52js Isw79qynfqwm7akiappzu0+kkwjtsxidqfuv5y2vaa3w2tre5n51ucwuk6/lfzhx bg0d+ Bnlzy6kb6bpgpgvbhaknbvjbcs0v9h4v3wutlr9qauj05q8qe70sqidaqab aogab/ 9az1mmknimfbiilxk1avvn353qy51ynytxffhbyisikvsyqtusuyffbjh7 ezyz8uws1jxuqb847iuz/ejzzpvev480tv9yejn0dhj4yw6y/
KPJWO/9KECET6TK VATXH+WGMIESZKXE0KUVK41GPV7A4GWWQJ6P4VJX+QKTANECQQDUO7ENW10DZXLG ynkquhgkdi9npjrlhcgz4rw0uorqusggqnvkaqpy8bajokkxwiq0avtpbiwo8k0+ s50rgnynakea3dgxy9owrc65vqs/
Uxv28pyle2gy0xsvwa97svnvyjj58ingevys VEZ3GRTNAZPBPKCRUCS6NIDK761OT5A0NQJAOSRO1PY4QQP5LSBDOJRLQ7DJAKEF 6YJCKBRVSHLIIHJQVDKD8KOEPZAQRHL3AUVE3K9PTKEZ2KWJJH0I0DKMHQJBAMCM f+7wnwa0pebj0mvqfyiechb/tjwxm/lskbnp17tv6gy/ HWOXGWMLA15DLIO2CMJZ Dbihby8y+nu7k4vadzecqqco018o5tjwl+o+bwyzv1er603yp+jvjiskuptuyzvs NIz+ClwspGmdUwPWlLqr5JfKm+
OFPALIEPFJINSCGWPP-----End RSA PRIVATE KEY-----'; $private _key = '-----BEGIN RSA private Key-----//miicxaibaakbgqdvfoce2nebi+4fyvs36j1SHHHVUSR0DXXE9NZAA/BIH6NODYWH//cqo2lyco6osvy+csspewjjyatrctq/ri6c/am64cju+hm1lzh1gh05c2kvj2dvex//gcdsz+/ Xphdxykaq/hw9s1neyr2x4ejdpynyucln8xwgelrnljunbl/saqidaqab//aogak2oz28hkkb+dornt2zktv2de85jhpr1ea+zuj+ 1m2xhjkzlqjiybb6m53lts//j446yzope/kxhgpwwijlq9wp1kizpeforwzz1wmuj8koq95vcxbeuyjx4ez4dio6// Vmr9babfuoah0gaq8ktjoz0durcecwv+ii7ilanorjpfwuucqqdveqrle2/n8niy//p7yvnniaiasl/e+xyqxcmidsdedqznrjhjfdobqpv/ TGJNUAN9ZBVHNNLBLNI5NF//2nqgrh5jakea48gqmbo9koonvo//q581jsbkfga4i7detq80od4kyt6fwezkaehx//k64sjmpfD/ Ys2hekfhyndo/k0nsuxglnwwjbakpx7/u9qllybnsfrwalhy9oc5at//hi0ilneoz5r43lngb+jcf/aa6uw357wb2wzpzdwuxokfofuukv+ Hekbj00ucqcxd//wowsiqcob5rwcbrevr49fotxmc7dq3omw3gu+odbb2izwkabah9cticexwfx5mks//
bs5rxzne3awmnnrpqnscqddocbxkf5ycthqlmeetfkodvzg69cozgykdlenoxk6g//qnnat2y2mxinyglpij+tfxxfiqeshdph4s/lw6t2isy=
-----End RSA PRIVATE KEY-----';
$public _key = '-----BEGIN public Key-----migfma0gcsqgsib3dqebaquaa4gnadcbiqkbgqdnsq4ampze01mpeo9dabrdss0x Wxkekefuowjnefg+na6p52jsisw79qynfqwm7akiappzU0+KKWJTSXIDQFUV5Y2V Aa3w2tre5n51ucwuk6/lfzhxbg0d+bnlzy6kb6bpgpgvbhaknbvjbcs0v9h4v3wu TLR9QauJ05Q8qe70sQIDAQAB--
---End public KEY-----';
$private _key= $privkey;
$public _key= $pubkey;
$FP =fopen ("Private_key", "w");
Fwrite ($fp, $private _key);
Fclose ($FP);
$FP =fopen ("Public_key", "w");
Fwrite ($fp, $public _key);
Fclose ($FP);
echo $private _key; $pi _key = openssl_pkey_get_private ($private _key);//This function can be used to determine whether the private key is available, the available return resource ID Resource ID $pu _key = openssl_pkey_get_
Public ($public _key);//This function can be used to determine whether the key is available Print_r ($pi _key); echo "\ n";
Print_r ($pu _key), echo "\ n";
echo "<br/>----------------------<br/>"; 
$data = "Woshizhu";//Original Data $encrypted = "";
$decrypted = "";
echo "Source data:", $data, "<br/>";
echo "Private key encrypt:\n"; Openssl_private_encrypt ($data, $encrypted, $pi _key);//private key Encryption $encrypted = Base64_encode ($encrypted);//encrypted content usually contains special characters,
Need to encode the conversion, in the network transmission through the URL to pay attention to whether the Base64 encoding is URL-safe echo "<br/>----------private key encryption------------<br/>";
Echo $encrypted, "<br/>"; echo "<br/>----------Private key encryption------------<br/> ";
echo "Public key decrypt:\n";
$decrypted = "";
Openssl_public_decrypt (Base64_decode ($encrypted), $decrypted, $pu _key);//private key encrypted content can be decrypted through the public key echo $decrypted, "\ n";
echo "---------------------------------------\ n";
echo "Public key encrypt:\n";
Openssl_public_encrypt ($data, $encrypted, $pu _key);//public key Encryption $encrypted = Base64_encode ($encrypted);
echo $encrypted, "\ n";
$decrypted = ""; $encrypted = "jbeapcp9iwwyjyelgqtrzxfxm4wvkcasn/ojz7njfr23o76fdbxexpf+ Pgwacw3petdobwl4108wr3ihkmy2iykiexgjbyyvx2w9ahies8zsoip3ljimhytm93rr8sc5xxhwqc3dhbq16jwhyz2d+
Rrophd4x84gf3jxwivrgo4= ";
echo "Private key decrypt:\n"; Openssl_private_decrypt (Base64_decode ($encrypted), $decrypted, $pi _key);//private key decryption echo "---:". $decrypted, "\ n";

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Password Security online detection:
Http://tools.jb51.net/password/my_password_safe

High Strength Password Generator:
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MD5 Online Encryption Tool:
Http://tools.jb51.net/password/CreateMD5Password

Thunderbolt, Express, Cyclone URL encryption/decryption tool:
Http://tools.jb51.net/password/urlrethunder

Online hashing/hashing algorithm encryption tool:
Http://tools.jb51.net/password/hash_encrypt

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I hope this article will help you with your PHP programming.