PHP OpenSSL RSA Encryption decryption

$config = Array (
"Config" = "d:/phpserver/lighttpd/openssl.cnf",
' Config ' = ' d:/phpstudy/lighttpd/openssl.cnf ',
' Private_key_bits ' = 1024x768,//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 "------------;
";
Print_r ($pubkey ["RSA"]);
//$bin _str= $pubkey ["RSA"] ["N"];
//Print_r ($bin _str);
//echo "
";
echo $bin _hex_str = Pack ("h*", Bin2Hex ($bin _str));
//echo $bin _hex_str = Bin2Hex ($bin _str);
//echo "
------------<
";

$pubkey = $pubkey ["Key"];
//Var_dump ($privkey);
//Var_dump ($pubkey); The
Echo $privkey.

";
echo $pubkey. "

";
?

!--? 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 if the private key is available, return the resource ID Resource ID
$pu _key = openssl_pkey_get_public ($public _key);//This function can be used to determine whether the public key is available
Print_r ($pi _key); echo "\ n";
Print_r ($pu _key); echo "\ n";
echo "
----------------------
";

$data = "Woshizhu";//RAW data
$encrypted = "";
$decrypted = "";

echo "Source data:", $data, "
";

echo "Private key encrypt:\n";

Openssl_private_encrypt ($data, $encrypted, $pi _key);//private key encryption
$encrypted = Base64_encode ($encrypted);//The contents of the encryption usually contain special characters, need to encode the conversion, the transmission between the network through the URL to pay attention to base64 encoding is URL-safe
echo "
----------private key Encryption------------
";
Echo $encrypted, "
";
echo "
----------private key Encryption------------
";
echo "Public key decrypt:\n";
$decrypted = "";
Openssl_public_decrypt (Base64_decode ($encrypted), $decrypted, $pu _key);//private key encrypted content can be decrypted by 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";
?>

The above describes the PHP OpenSSL RSA encryption and decryption, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.

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