3187791ed3
[skip ci] Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7831)
71 lines
2.3 KiB
Text
71 lines
2.3 KiB
Text
=pod
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=begin comment
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This is a recommended way to describe OSSL_STORE loaders,
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"ossl_store-{name}", where {name} is replaced with the name of the
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scheme it implements, in man section 7.
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=end comment
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=head1 NAME
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ossl_store-file - The store 'file' scheme loader
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=head1 SYNOPSIS
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=for comment generic
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#include <openssl/store.h>
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=head1 DESCRIPTION
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Support for the 'file' scheme is built into C<libcrypto>.
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Since files come in all kinds of formats and content types, the 'file'
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scheme has its own layer of functionality called "file handlers",
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which are used to try to decode diverse types of file contents.
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In case a file is formatted as PEM, each called file handler receives
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the PEM name (everything following any 'C<-----BEGIN >') as well as
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possible PEM headers, together with the decoded PEM body. Since PEM
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formatted files can contain more than one object, the file handlers
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are called upon for each such object.
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If the file isn't determined to be formatted as PEM, the content is
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loaded in raw form in its entirety and passed to the available file
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handlers as is, with no PEM name or headers.
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Each file handler is expected to handle PEM and non-PEM content as
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appropriate. Some may refuse non-PEM content for the sake of
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determinism (for example, there are keys out in the wild that are
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represented as an ASN.1 OCTET STRING. In raw form, it's not easily
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possible to distinguish those from any other data coming as an ASN.1
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OCTET STRING, so such keys would naturally be accepted as PEM files
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only).
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=head1 NOTES
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When needed, the 'file' scheme loader will require a pass phrase by
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using the C<UI_METHOD> that was passed via OSSL_STORE_open().
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This pass phrase is expected to be UTF-8 encoded, anything else will
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give an undefined result.
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The files made accessible through this loader are expected to be
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standard compliant with regards to pass phrase encoding.
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Files that aren't should be re-generated with a correctly encoded pass
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phrase.
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See L<passphrase-encoding(7)> for more information.
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=head1 SEE ALSO
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L<ossl_store(7)>, L<passphrase-encoding(7)>
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=head1 COPYRIGHT
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Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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