PHP 7.0.0 Beta 2 Released

openssl_decrypt

(PHP 5 >= 5.3.0)

openssl_decryptDecrypts data

Descrizione

string openssl_decrypt ( string $data , string $method , string $password [, int $options = 0 [, string $iv = "" ]] )

Takes a raw or base64 encoded string and decrypts it using a given method and key.

Avviso

Questa funzione, al momento non è documentata; è disponibile soltanto la lista degli argomenti.

Elenco dei parametri

data

The data.

method

The cipher method.

password

The password.

options

options can be one of OPENSSL_RAW_DATA, OPENSSL_ZERO_PADDING.

iv

A non-NULL Initialization Vector.

Valori restituiti

The decrypted string on success o FALSE in caso di fallimento.

Errori/Eccezioni

Emits an E_WARNING level error if an unknown cipher algorithm is passed via the method parameter.

Emits an E_WARNING level error if an empty value is passed in via the iv parameter.

Log delle modifiche

Versione Descrizione
5.3.3 The iv parameter was added.
5.4.0 The raw_output was changed to options.

Vedere anche:

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User Contributed Notes 2 notes

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3
ittasks at gmail dot com
2 years ago
in case that hosting do not provide openssl_encrypt decrypt functions - it could be mimiced via commad prompt executions 
this functions will check is if openssl is installed and try to use it by default

function sslPrm()
{
return array("your_password","IV (optional)","aes-128-cbc");
}
function sslEnc($msg)
{
  list ($pass, $iv, $method)=sslPrm();
  if(function_exists('openssl_encrypt'))
     return urlencode(openssl_encrypt(urlencode($msg), $method, $pass, false, $iv));
  else
     return urlencode(exec("echo \"".urlencode($msg)."\" | openssl enc -".urlencode($method)." -base64 -nosalt -K ".bin2hex($pass)." -iv ".bin2hex($iv)));
}
function sslDec($msg)
{
  list ($pass, $iv, $method)=sslPrm();
  if(function_exists('openssl_decrypt'))
     return trim(urldecode(openssl_decrypt(urldecode($msg), $method, $pass, false, $iv)));
  else
     return trim(urldecode(exec("echo \"".urldecode($msg)."\" | openssl enc -".$method." -d -base64 -nosalt -K ".bin2hex($pass)." -iv ".bin2hex($iv))));
}

//example of usage:
$r= sslEnc("This is encryption/decryption test!");
echo "<br>\n".$r.":".sslDec($r);
up
-6
Anonymous
1 year ago
If your using windows os, do not use the text inside the "file previewer" pane, as this is a truncated version of the actual encrypted string.

Instead, you need to open the file directly and use the contents there.

The error message I had been getting was:
"error:0606506D:digital envelope routines:EVP_DecryptFinal_ex:wrong final block length"
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