(PHP 5 >= 5.3.0, PHP 7)
openssl_decrypt — Decrypts data
$data
, string $method
, string $key
[, int $options
= 0
[, string $iv
= ""
[, string $tag
= ""
[, string $aad
= ""
]]]] ) : stringTakes a raw or base64 encoded string and decrypts it using a given method and key.
data
The encrypted message to be decrypted.
method
The cipher method. For a list of available cipher methods, use openssl_get_cipher_methods().
key
The key.
options
options
can be one of
OPENSSL_RAW_DATA
,
OPENSSL_ZERO_PADDING
.
iv
A non-NULL Initialization Vector.
tag
The authentication tag in AEAD cipher mode. If it is incorrect, the authentication fails and the function returns FALSE
.
aad
Additional authentication data.
The decrypted string on successIm Fehlerfall wird FALSE
zurückgegeben..
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.
Version | Beschreibung |
---|---|
7.1.0 | The tag and aad parameters were added. |
5.4.0 |
The raw_output was changed to options .
|
5.3.3 |
The iv parameter was added.
|