(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 = ""
]]]] )Takes a raw or base64 encoded string and decrypts it using a given method and key.
本函数还未编写文档，仅有参数列表。
dataThe data.
methodThe cipher method.
keyThe key.
options
options can be one of
OPENSSL_RAW_DATA,
OPENSSL_ZERO_PADDING.
ivA non-NULL Initialization Vector.
tag
The authentication tag in AEAD cipher mode. If it is incorrect, the authentication fails and the function returns FALSE.
aadAdditional authentication data.
The decrypted string on success 或者在失败时返回 FALSE.
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.
| 版本 | 说明 |
|---|---|
| 5.3.3 |
The iv parameter was added.
|
| 5.4.0 |
The raw_output was changed to options.
|
| 7.1.0 | The tag and aad parameters were added. |