mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-03 13:13:30 +01:00
145 lines
5.2 KiB
Plaintext
145 lines
5.2 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
OSSL_ENCODER,
|
|
OSSL_ENCODER_fetch,
|
|
OSSL_ENCODER_up_ref,
|
|
OSSL_ENCODER_free,
|
|
OSSL_ENCODER_get0_provider,
|
|
OSSL_ENCODER_get0_properties,
|
|
OSSL_ENCODER_is_a,
|
|
OSSL_ENCODER_get0_name,
|
|
OSSL_ENCODER_get0_description,
|
|
OSSL_ENCODER_do_all_provided,
|
|
OSSL_ENCODER_names_do_all,
|
|
OSSL_ENCODER_gettable_params,
|
|
OSSL_ENCODER_get_params
|
|
- Encoder method routines
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
#include <openssl/encoder.h>
|
|
|
|
typedef struct ossl_encoder_st OSSL_ENCODER;
|
|
|
|
OSSL_ENCODER *OSSL_ENCODER_fetch(OSSL_LIB_CTX *ctx, const char *name,
|
|
const char *properties);
|
|
int OSSL_ENCODER_up_ref(OSSL_ENCODER *encoder);
|
|
void OSSL_ENCODER_free(OSSL_ENCODER *encoder);
|
|
const OSSL_PROVIDER *OSSL_ENCODER_get0_provider(const OSSL_ENCODER *encoder);
|
|
const char *OSSL_ENCODER_get0_properties(const OSSL_ENCODER *encoder);
|
|
int OSSL_ENCODER_is_a(const OSSL_ENCODER *encoder, const char *name);
|
|
const char *OSSL_ENCODER_get0_name(const OSSL_ENCODER *encoder);
|
|
const char *OSSL_ENCODER_get0_description(const OSSL_ENCODER *encoder);
|
|
void OSSL_ENCODER_do_all_provided(OSSL_LIB_CTX *libctx,
|
|
void (*fn)(OSSL_ENCODER *encoder, void *arg),
|
|
void *arg);
|
|
int OSSL_ENCODER_names_do_all(const OSSL_ENCODER *encoder,
|
|
void (*fn)(const char *name, void *data),
|
|
void *data);
|
|
const OSSL_PARAM *OSSL_ENCODER_gettable_params(OSSL_ENCODER *encoder);
|
|
int OSSL_ENCODER_get_params(OSSL_ENCODER_CTX *ctx, const OSSL_PARAM params[]);
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
B<OSSL_ENCODER> is a method for encoders, which know how to
|
|
encode an object of some kind to a encoded form, such as PEM,
|
|
DER, or even human readable text.
|
|
|
|
OSSL_ENCODER_fetch() looks for an algorithm within the provider that
|
|
has been loaded into the B<OSSL_LIB_CTX> given by I<ctx>, having the
|
|
name given by I<name> and the properties given by I<properties>.
|
|
The I<name> determines what type of object the fetched encoder
|
|
method is expected to be able to encode, and the properties are
|
|
used to determine the expected output type.
|
|
For known properties and the values they may have, please have a look
|
|
in L<provider-encoder(7)/Names and properties>.
|
|
|
|
OSSL_ENCODER_up_ref() increments the reference count for the given
|
|
I<encoder>.
|
|
|
|
OSSL_ENCODER_free() decrements the reference count for the given
|
|
I<encoder>, and when the count reaches zero, frees it.
|
|
|
|
OSSL_ENCODER_get0_provider() returns the provider of the given
|
|
I<encoder>.
|
|
|
|
OSSL_ENCODER_get0_properties() returns the property definition associated
|
|
with the given I<encoder>.
|
|
|
|
OSSL_ENCODER_is_a() checks if I<encoder> is an implementation of an
|
|
algorithm that's identifiable with I<name>.
|
|
|
|
OSSL_ENCODER_get0_name() returns the name used to fetch the given I<encoder>.
|
|
|
|
OSSL_ENCODER_get0_description() returns a description of the I<loader>, meant
|
|
for display and human consumption. The description is at the discretion of the
|
|
I<loader> implementation.
|
|
|
|
OSSL_ENCODER_names_do_all() traverses all names for the given
|
|
I<encoder>, and calls I<fn> with each name and I<data> as arguments.
|
|
|
|
OSSL_ENCODER_do_all_provided() traverses all encoder
|
|
implementations by all activated providers in the library context
|
|
I<libctx>, and for each of the implementations, calls I<fn> with the
|
|
implementation method and I<arg> as arguments.
|
|
|
|
OSSL_ENCODER_gettable_params() returns an L<OSSL_PARAM(3)>
|
|
array of parameter descriptors.
|
|
|
|
OSSL_ENCODER_get_params() attempts to get parameters specified
|
|
with an L<OSSL_PARAM(3)> array I<params>. Parameters that the
|
|
implementation doesn't recognise should be ignored.
|
|
|
|
=head1 RETURN VALUES
|
|
|
|
OSSL_ENCODER_fetch() returns a pointer to the key management
|
|
implementation represented by an OSSL_ENCODER object, or NULL on
|
|
error.
|
|
|
|
OSSL_ENCODER_up_ref() returns 1 on success, or 0 on error.
|
|
|
|
OSSL_ENCODER_free() doesn't return any value.
|
|
|
|
OSSL_ENCODER_get0_provider() returns a pointer to a provider object, or
|
|
NULL on error.
|
|
|
|
OSSL_ENCODER_get0_properties() returns a pointer to a property
|
|
definition string, or NULL on error.
|
|
|
|
OSSL_ENCODER_is_a() returns 1 of I<encoder> was identifiable,
|
|
otherwise 0.
|
|
|
|
OSSL_ENCODER_get0_name() returns the algorithm name from the provided
|
|
implementation for the given I<encoder>. Note that the I<encoder> may have
|
|
multiple synonyms associated with it. In this case the first name from the
|
|
algorithm definition is returned. Ownership of the returned string is retained
|
|
by the I<encoder> object and should not be freed by the caller.
|
|
|
|
OSSL_ENCODER_get0_description() returns a pointer to a decription, or NULL if
|
|
there isn't one.
|
|
|
|
OSSL_ENCODER_names_do_all() returns 1 if the callback was called for all
|
|
names. A return value of 0 means that the callback was not called for any names.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<provider(7)>, L<OSSL_ENCODER_CTX(3)>, L<OSSL_ENCODER_to_bio(3)>,
|
|
L<OSSL_ENCODER_CTX_new_for_pkey(3)>, L<OSSL_LIB_CTX(3)>
|
|
|
|
=head1 HISTORY
|
|
|
|
The functions described here were added in OpenSSL 3.0.
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
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
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|