openssl_public_encrypt()函數(shù)用于使用公鑰加密數(shù)據(jù)。
openssl_public_encrypt()函數(shù)將使用公共密鑰加密數(shù)據(jù)。
使用openssl_public_encrypt()函數(shù)將對數(shù)據(jù)進行加密，并且可以使用openssl_private_decrypt()將其解密。
openssl_public_encrypt ( string $data , string &$crypted , mixed $key [, int $padding = OPENSSL_PKCS1_PADDING ] ) : bool
| 序號 | 參數(shù) | 描述 |
|---|---|---|
| 1 | data | . |
| 2 | encrypted | 它將擁有加密的數(shù)據(jù)。 |
| 3 | key | 公鑰。 |
| 4 | padding | 您可以應(yīng)用的填充為：OPENSSL_PKCS1_PADDING，OPENSSL_SSLV23_PADDING，OPENSSL_PKCS1_OAEP_PADDING，OPENSSL_NO_PADDING。 |
PHP openssl_public_encrypt()函數(shù)成功時返回TRUE，失敗時返回FALSE。
此函數(shù)將從大于5.0.0的PHP版本開始工作。
使用openssl_public_encrypt() 使用公鑰加密數(shù)據(jù)：
<?php
//保存私鑰
$privkey = openssl_pkey_new();
openssl_pkey_export_to_file($privkey, 'C:/xampp/htdocs/modules/openssl/privatekey.pem');
//保存公鑰
$dn = array(
"countryName" => "IN",
"stateOrProvinceName" => "Karnataka",
"localityName" => "test1",
"organizationName" => "test2",
"organizationalUnitName" => "test3",
"commonName" => "www.test.com",
"emailAddress" => "xyz@test.com"
);
$cert = openssl_csr_new($dn, $privkey);
$cert = openssl_csr_sign($cert, null, $privkey, 365);
openssl_x509_export_to_file($cert, 'C:/xampp/htdocs/modules/openssl/publickey.pem');
//加密數(shù)據(jù)
$data = 'Welcome To TuorialsPoint';
$isvalid = openssl_public_encrypt ($data, $crypted , file_get_contents('C:/xampp/htdocs/modules/openssl/publickey.pem'),OPENSSL_PKCS1_PADDING);
echo "Data encryption : ".$crypted;
?>這將產(chǎn)生以下結(jié)果：
Data encryption : ??E ?wC???+c??f*??o???W?7?EW??$?p?.rng?_N??A1???2U?~s?ap?)w??=? ??#???g;???u??_%?Z?bb?&??m??v&????q??k
要使用openssl_public_encrypt()加密數(shù)據(jù)并使用openssl_private_decrypt()解密：
<?php
//保存私鑰
$privkey = openssl_pkey_new();
openssl_pkey_export_to_file($privkey, 'C:/xampp/htdocs/modules/openssl/privatekey.pem');
//保存公鑰
$dn = array(
"countryName" => "IN",
"stateOrProvinceName" => "Karnataka",
"localityName" => "test1",
"organizationName" => "test2",
"organizationalUnitName" => "test3",
"commonName" => "www.test.com",
"emailAddress" => "xyz@test.com"
);
$cert = openssl_csr_new($dn, $privkey);
$cert = openssl_csr_sign($cert, null, $privkey, 365);
openssl_x509_export_to_file($cert, 'C:/xampp/htdocs/modules/openssl/publickey.pem');
//加密數(shù)據(jù)
$data = 'Welcome To (cainiaoplus.com)';
$isvalid = openssl_public_encrypt ($data, $crypted , file_get_contents('C:/xampp/htdocs/modules/openssl/publickey.pem'),OPENSSL_PKCS1_PADDING);
echo "Data encryption : ".$crypted;
echo ">br/<>br/<";
if ($isvalid) {
openssl_private_decrypt ($crypted, $decrypted , file_get_contents('C:/xampp/htdocs/modules/openssl/privatekey.pem'),OPENSSL_PKCS1_PADDING);
echo "Data decryption : ".$decrypted;
}
?>這將產(chǎn)生以下結(jié)果：
Data encryption : L?_}{?E*????9[w????7p ?\?I???'????n??!??????*????Xcw???????)??/??{??!j?L??I*?"9eV?9?=Y\?m?i??M(?0PJ?????9??C?`?a???b???a????m?G$i??eU/[?eU????\=?zLdōn"??:[\?UA?????2@-"d??s?=2?n??h??q5U??浿???9?{???|?NE?a!
Data decryption : Welcome To (cainiaoplus.com)