如果我使用 PHP s fopen () 函数从 HTPS 网站检索数据,那么人们会称之为安全 HTPS 连接。 也就是说, 它是否提供保护, 防止中继和偷听攻击?
不是默认的,不是。
它总是会提供某种形式的保护,防止简单的窃听攻击,因为数据总是加密的(只要您连接的 SSL 服务器允许至少使用一个加密密码- 是的, HTTPS 连接: Roll-eyes 中允许使用空加密密码 : Roll- eyes : ) 但是,默认情况下,它不会保护中线人,因为它验证了服务器证书,因此您无法相信您已经连接了预定服务器。
证书验证可以打开。 要做到这一点, 您需要提供一个 root 证书捆绑, 并将第四个参数用于 fopen , 这样您就可以指定流上下文。 流上上下文允许您修改流的运行方式。 下面的开关示例导致证书在指定的捆绑文件中被根证书验证 。
$context = stream_context_create( array(
ssl => array(
cafile => ca_bundle.crt ,
verify_peer => true
)
));
$file = fopen( $url, r , false, $context );
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