openssl_decrypt
(PHP 5 >= 5.3.0, PHP 7)
openssl_decrypt — Decrypts data
Description
$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.
Parameters
-
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 ofOPENSSL_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.
Errors/Exceptions
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.
Changelog
Version | Description |
---|---|
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.
|
English translation
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Document created the 30/01/2003, last modified the 26/10/2018
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References
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