PHP 如何使用密钥对文本进行编码/解码？
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PHP how encode/decode text with key?
提问by Rakesh Sharma
Code:
代码：
$result = mcrypt_ecb (MCRYPT_3DES, 'test', $string, MCRYPT_ENCRYPT);
It code encode $string. But how decode $result?
它编码编码$string。但如何解码$result？
Tell me please how decode $result?
请告诉我如何解码$result？
回答by Rakesh Sharma
Decrypt:
解密：
//Encryption
$result = mcrypt_ecb (MCRYPT_3DES, 'test', $string, MCRYPT_ENCRYPT);
//Decryption
$decrypt_result = mcrypt_ecb (MCRYPT_3DES, 'test', $result, MCRYPT_DECRYPT);
You need to change mode in arguments and pass encrypted values.
您需要更改参数模式并传递加密值。
NOTE: mcrypt_generic() has also been DEPRECATED as of PHP 7.1.0.
注意：自 PHP 7.1.0 起，mcrypt_generic() 也已弃用。
Read manual: http://www.php.net/manual/en/function.mcrypt-ecb.php.
阅读手册：http: //www.php.net/manual/en/function.mcrypt-ecb.php。
Better to use mcrypt_generic().
最好使用mcrypt_generic()。
$cc = 'my secret text';
$key = 'my secret key';
$iv = '12345678';
$cipher = mcrypt_module_open(MCRYPT_BLOWFISH,'','cbc','');
mcrypt_generic_init($cipher, $key, $iv);
$encrypted = mcrypt_generic($cipher,$cc);
mcrypt_generic_deinit($cipher);
mcrypt_generic_init($cipher, $key, $iv);
$decrypted = mdecrypt_generic($cipher,$encrypted);
mcrypt_generic_deinit($cipher);
echo "encrypted : ".$encrypted;
echo "<br>";
echo "decrypted : ".$decrypted;
回答by Erik Olson
See https://gist.github.com/joashp/a1ae9cb30fa533f4ad94
见https://gist.github.com/joashp/a1ae9cb30fa533f4ad94
Simple PHP encrypt and decrypt using OpenSSL from Joashp who will work for food
使用来自 Joashp 的 OpenSSL 进行简单的 PHP 加密和解密，他将为食品工作
/**
* simple method to encrypt or decrypt a plain text string
* initialization vector(IV) has to be the same when encrypting and decrypting
*
* @param string $action: can be 'encrypt' or 'decrypt'
* @param string $string: string to encrypt or decrypt
*
* @return string
*/
function encrypt_decrypt($action, $string) {
$output = false;
$encrypt_method = "AES-256-CBC";
$secret_key = 'This is my secret key';
$secret_iv = 'This is my secret iv';
// hash
$key = hash('sha256', $secret_key);
// iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning
$iv = substr(hash('sha256', $secret_iv), 0, 16);
if ( $action == 'encrypt' ) {
$output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
$output = base64_encode($output);
} else if( $action == 'decrypt' ) {
$output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
}
return $output;
}
$plain_txt = "This is my plain text";
echo "Plain Text =" .$plain_txt. "\n";
$encrypted_txt = encrypt_decrypt('encrypt', $plain_txt);
echo "Encrypted Text = " .$encrypted_txt. "\n";
$decrypted_txt = encrypt_decrypt('decrypt', $encrypted_txt);
echo "Decrypted Text =" .$decrypted_txt. "\n";
if ( $plain_txt === $decrypted_txt ) echo "SUCCESS";
else echo "FAILED";
echo "\n";
回答by chandresh_cool
Note: This function has been DEPRECATED as of PHP 7.1.0. Relying on this function is highly discouraged.
注意：该函数自 PHP 7.1.0 起已弃用。强烈建议不要依赖此功能。
Try using MCRYPT_DECRYPT
尝试使用 MCRYPT_DECRYPT
$result = mcrypt_ecb (MCRYPT_3DES, 'test', $string, MCRYPT_ENCRYPT);
$decrypted_text = mcrypt_ecb(MCRYPT_DES, 'test', $result, MCRYPT_DECRYPT);
echo rtrim($decrypted_text);
回答by Mark Smit
You should use mcrypt_encrypt in ecb mode isntead. mcrypr_ecb is depricated.
您应该在 ecb 模式下使用 mcrypt_encrypt。mcrypr_ecb 已弃用。
to decrypt it you can use: mcrypt_decrypt
解密它你可以使用：mcrypt_decrypt
