ossl_store-file(7) - phpMan

OSSL_STORE-FILE(7SSL) OpenSSL OSSL_STORE-FILE(7SSL)

NAME
ossl_store-file - The store 'file' scheme loader

SYNOPSIS
#include <openssl/store.h>

DESCRIPTION
Support for the 'file' scheme is built into "libcrypto". Since files come in all kinds of
formats and content types, the 'file' scheme has its own layer of functionality called
"file handlers", which are used to try to decode diverse types of file contents.

In case a file is formatted as PEM, each called file handler receives the PEM name
(everything following any '"-----BEGIN "') as well as possible PEM headers, together with
the decoded PEM body. Since PEM formatted files can contain more than one object, the
file handlers are called upon for each such object.

If the file isn't determined to be formatted as PEM, the content is loaded in raw form in
its entirety and passed to the available file handlers as is, with no PEM name or headers.

Each file handler is expected to handle PEM and non-PEM content as appropriate. Some may
refuse non-PEM content for the sake of determinism (for example, there are keys out in the
wild that are represented as an ASN.1 OCTET STRING. In raw form, it's not easily possible
to distinguish those from any other data coming as an ASN.1 OCTET STRING, so such keys
would naturally be accepted as PEM files only).

NOTES
When needed, the 'file' scheme loader will require a pass phrase by using the UI_METHOD
that was passed via OSSL_STORE_open(). This pass phrase is expected to be UTF-8 encoded,
anything else will give an undefined result. The files made accessible through this
loader are expected to be standard compliant with regards to pass phrase encoding. Files
that aren't should be re-generated with a correctly encoded pass phrase. See
passphrase-encoding(7) for more information.

SEE ALSO
ossl_store(7), passphrase-encoding(7)

Licensed under the Apache License 2.0 (the "License"). You may not use this file except
in compliance with the License. You can obtain a copy in the file LICENSE in the source
distribution or at <https://www.openssl.org/source/license.html>.

3.0.2 2025-09-18 OSSL_STORE-FILE(7SSL)

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