mirror of
https://github.com/openssl/openssl.git
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f5afac4bda
Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/14986)
63 lines
2.2 KiB
Plaintext
63 lines
2.2 KiB
Plaintext
=pod
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=head1 NAME
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ossl_cmp_calc_protection,
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ossl_cmp_msg_protect,
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ossl_cmp_msg_add_extraCerts
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- functions for producing CMP message protection
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=head1 SYNOPSIS
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#include "cmp_local.h"
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ASN1_BIT_STRING *ossl_cmp_calc_protection(const OSSL_CMP_CTX *ctx,
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const OSSL_CMP_MSG *msg);
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int ossl_cmp_msg_protect(OSSL_CMP_CTX *ctx, OSSL_CMP_MSG *msg);
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int ossl_cmp_msg_add_extraCerts(OSSL_CMP_CTX *ctx, OSSL_CMP_MSG *msg);
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=head1 DESCRIPTION
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ossl_cmp_calc_protection() calculates the protection for the given I<msg>
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according to the algorithm and parameters in the message header's protectionAlg
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using the credentials, library context, and property criteria in the I<ctx>.
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ossl_cmp_msg_protect() (re-)protects the given message I<msg> using an algorithm
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depending on the available context information given in the I<ctx>.
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If there is a secretValue it selects PBMAC, else if there is a protection cert
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it selects Signature and uses L<ossl_cmp_msg_add_extraCerts(3)>.
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It also sets the protectionAlg field in the message header accordingly.
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ossl_cmp_msg_add_extraCerts() adds elements to the extraCerts field in I<msg>.
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If signature-based message protection is used it adds first the CMP signer cert
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ctx->cert and then its chain ctx->chain. If this chain is not present in I<ctx>
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tries to build it using ctx->untrusted and caches the result in ctx->chain.
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In any case all the certificates explicitly specified to be sent out (i.e.,
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I<ctx->extraCertsOut>) are added. Note that it will NOT add the root certificate
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of the chain, i.e, the trust anchor (unless it is part of extraCertsOut).
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=head1 NOTES
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CMP is defined in RFC 4210 (and CRMF in RFC 4211).
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=head1 RETURN VALUES
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ossl_cmp_calc_protection() returns the protection on success, else NULL.
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All other functions return 1 on success, 0 on error.
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=head1 HISTORY
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The OpenSSL CMP support was added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2007-2021 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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