openssl_decrypt

(PHP 5 >= 5.3.0, PHP 7)

openssl_decrypt — Decrypts data

Descrierea

openssl_decrypt ( string $data , string $method , string $key [, int $options = 0 [, string $iv = "" [, string $tag = "" [, string $aad = "" ]]]] ) : string

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

Parametri

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.

Valorile întoarse

The decrypted string on success sau FALSE în cazul eșecului.

Erori/Excepții

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.

Istoricul schimbărilor

Versiune Descriere
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.

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