1=pod 2 3=begin comment 4 5This is a recommended way to describe OSSL_STORE loaders, 6"ossl_store-{name}", where {name} is replaced with the name of the 7scheme it implements, in man section 7. 8 9=end comment 10 11=head1 NAME 12 13ossl_store-file - The store 'file' scheme loader 14 15=head1 SYNOPSIS 16 17=for openssl generic 18 19#include <openssl/store.h> 20 21=head1 DESCRIPTION 22 23Support for the 'file' scheme is built into C<libcrypto>. 24Since files come in all kinds of formats and content types, the 'file' 25scheme has its own layer of functionality called "file handlers", 26which are used to try to decode diverse types of file contents. 27 28In case a file is formatted as PEM, each called file handler receives 29the PEM name (everything following any 'C<-----BEGIN >') as well as 30possible PEM headers, together with the decoded PEM body. Since PEM 31formatted files can contain more than one object, the file handlers 32are called upon for each such object. 33 34If the file isn't determined to be formatted as PEM, the content is 35loaded in raw form in its entirety and passed to the available file 36handlers as is, with no PEM name or headers. 37 38Each file handler is expected to handle PEM and non-PEM content as 39appropriate. Some may refuse non-PEM content for the sake of 40determinism (for example, there are keys out in the wild that are 41represented as an ASN.1 OCTET STRING. In raw form, it's not easily 42possible to distinguish those from any other data coming as an ASN.1 43OCTET STRING, so such keys would naturally be accepted as PEM files 44only). 45 46=head1 NOTES 47 48When needed, the 'file' scheme loader will require a pass phrase by 49using the B<UI_METHOD> that was passed via OSSL_STORE_open(). 50This pass phrase is expected to be UTF-8 encoded, anything else will 51give an undefined result. 52The files made accessible through this loader are expected to be 53standard compliant with regards to pass phrase encoding. 54Files that aren't should be re-generated with a correctly encoded pass 55phrase. 56See L<passphrase-encoding(7)> for more information. 57 58=head1 SEE ALSO 59 60L<ossl_store(7)>, L<passphrase-encoding(7)> 61 62=head1 COPYRIGHT 63 64Copyright 2018 The OpenSSL Project Authors. All Rights Reserved. 65 66Licensed under the Apache License 2.0 (the "License"). You may not use 67this file except in compliance with the License. You can obtain a copy 68in the file LICENSE in the source distribution or at 69L<https://www.openssl.org/source/license.html>. 70 71=cut 72