SSL context options for in memory cert and pk

Description

It is dangerous to store certificates and privateKeys (without a password) on the disk. Unfortunately, this is needed to load the * .p12 file into stream_context_create.

Please, add the option to set certificates and privateKeys from string content or at least from Data URLs, instead the file path only.

// Using string content
// --------------------

openssl_pkcs12_read(file_get_contents('cert.p12'),$certificates,'pass');

$stream_context = stream_context_create(
[ 'ssl' => [ 'local_cert' => $certificates['cert'],
             'local_pk'   => $certificates['pkey']
           ]
]);

// Using Data URLs
// ---------------

openssl_pkcs12_read(file_get_contents('cert.p12'),$certificates,'pass');

$stream_context = stream_context_create(
[ 'ssl' => [ 'local_cert' => 'data:,'.$certificates['cert'],
             'local_pk'   => 'data:,'.$certificates['pkey']
           ]
]);

// Hack: temp files
// ----------------

openssl_pkcs12_read(file_get_contents('cert.p12'),$certificates,'pass');

file_put_contents('cert.temp',$certificates['cert']);
file_put_contents('pkey.temp',$certificates['pkey']);

$stream_context = stream_context_create(
[ 'ssl' => [ 'local_cert' => 'cert.temp',
             'local_pk'   => 'pkey.temp'
           ]
]);

Expected result: Reading certificates and privateKeys without temp files.
Actual result: Reading certificates and privateKeys only with temp files.

PHP Version

PHP 8.1.1

Operating System

All

stream_context_create の SSL オプション、特に local_cert と local_pk から始め、現在のファイルパス処理を、ここに示されている openssl_pkcs12_read の出力と比較します。サポートされている表現を特定し、一時ファイルを使わずに証明書と秘密鍵を読み込めることを示すテストカバレッジを追加します。提供された例がすべてのプラットフォームで動作すれば完了です。