openssl_public_decrypt()函数用于使用公钥解密数据。
openssl_public_decrypt()函数将使用公共密钥解密数据。
使用函数openssl_public_decrypt()将解密使用openssl_private_encrypt()加密的数据。
openssl_public_decrypt ( string $data , string &$decrypted , mixed $key [, int $padding = OPENSSL_PKCS1_PADDING ] ) : bool
序号 | 参数 | 描述 |
---|---|---|
1 | data | 使用openssl_private_encrypt()加密的数据。 |
2 | decrypted | 它将拥有解密的数据。 |
3 | key | 公钥。 |
4 | padding | 您可以应用的填充为:OPENSSL_PKCS1_PADDING,OPENSSL_NO_PADDING。 |
PHP openssl_public_decrypt()函数成功时返回TRUE,失败时返回FALSE。
此函数将从大于5.0.0的PHP版本开始工作。
要使用openssl_private_encrypt()加密数据并使用openssl_public_decrypt()解密:
<?php // 保存私钥 $privkey = openssl_pkey_new(); openssl_pkey_export_to_file($privkey, 'C:/xampp/htdocs/modules/openssl/privatekey.pem'); //加密数据 $data = 'Welcome To (cainiaojc.com)'; $isvalid = openssl_private_encrypt ($data, $crypted , file_get_contents('C:/xampp/htdocs/modules/openssl/privatekey.pem'),OPENSSL_PKCS1_PADDING); echo "Data encryption : ".$crypted; echo ">br/<>br/<"; //保存公钥 $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'); if ($isvalid) { openssl_public_decrypt ($crypted, $decrypted , file_get_contents('C:/xampp/htdocs/modules/openssl/publickey.pem'),OPENSSL_PKCS1_PADDING); echo "Data decryption : ".$decrypted; } ?>
这将产生以下结果:
Data encryption : k���G��7)xy{�N3Г�x<�J^�gd��Ψ�I?{��<�Ws3�mW$��h��(F;tJ�J�W��|�9L�vL��xF���f����,�(N�ΰ��n���Y%Oo,�2����Qh��G�|-����}���1�6Tm�qS�wb���[�i�-r�F��rQhZ���$�� ��U�pMC��Y�n�0,Z�CuG��8�h��@4f��7ؕ�w��;�����d���ʈ����$�I^�Z���at��?� Data decryption : Welcome To (cainiaojc.com)
要使用openssl_private_encrypt()加密文件内容并使用openssl_public_decrypt()解密:
<?php //保存私钥 $privkey = openssl_pkey_new(); openssl_pkey_export_to_file($privkey, 'C:/xampp/htdocs/modules/openssl/privatekey.pem'); //加密数据 $data = file_get_contents('C:/xampp/htdocs/modules/openssl/test.txt'); $isvalid = openssl_private_encrypt ($data, $crypted , file_get_contents('C:/xampp/htdocs/modules/openssl/privatekey.pem'),OPENSSL_PKCS1_PADDING); echo "Data encryption : ".$crypted; echo ">br/<>br/<"; //保存公钥 $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'); if ($isvalid) { openssl_public_decrypt ($crypted, $decrypted , file_get_contents('C:/xampp/htdocs/modules/openssl/publickey.pem'),OPENSSL_PKCS1_PADDING); echo "Data decryption : ".$decrypted; } ?>
这将产生以下结果:
Data encryption : ��V*�+@4CҺX�i�mM6��� ���,?�F,��+�q �����@�������g�N6c<*eh��:������5Z��&�&'+= ���b���J�r ��aO�@gƝ��m�Gy�4W2�ҋ����%���pX@�k�DW�fEW��$j�>i��~��1���w�m}���}�����5I��x� ��H�*A8�� ��U�7~°���F�}4����DV�MZ��望C �'C��-�7�f� Data decryption : This is data encryption test using openssl php module.