OpenSSL 함수 목록openssl_cipher_iv_length
(PHP 5 >= PHP 5.3.3)
openssl_cipher_iv_length — Gets the cipher iv length
설명
int openssl_cipher_iv_length
( string $method
)
Gets the cipher iv length.
인수
- method
-
The method.
반환값
Returns the cipher length on success, or FALSE on failure.
오류/예외
Emits an E_WARNING level error when the cipher algorithm is unknown.
예제
Example #1 openssl_cipher_iv_length() example
<?php
$method = 'AES-128-CBC';
$ivlen = openssl_cipher_iv_length($method);
echo $ivlen;
?>
위 예제의 출력 예시:
16
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