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Migrate to OpenSSL 3.0 in advance of FreeBSD 14.0. OpenSSL 1.1.1 (the version we were previously using) will be EOL as of 2023-09-11. Most of the base system has already been updated for a seamless switch to OpenSSL 3.0. For many components we've added `-DOPENSSL_API_COMPAT=0x10100000L` to CFLAGS to specify the API version, which avoids deprecation warnings from OpenSSL 3.0. Changes have also been made to avoid OpenSSL APIs that were already deprecated in OpenSSL 1.1.1. The process of updating to contemporary APIs can continue after this merge. Additional changes are still required for libarchive and Kerberos- related libraries or tools; workarounds will immediately follow this commit. Fixes are in progress in the upstream projects and will be incorporated when those are next updated. There are some performance regressions in benchmarks (certain tests in `openssl speed`) and in some OpenSSL consumers in ports (e.g. haproxy). Investigation will continue for these. Netflix's testing showed no functional regression and a rather small, albeit statistically significant, increase in CPU consumption with OpenSSL 3.0. Thanks to ngie@ and des@ for updating base system components, to antoine@ and bofh@ for ports exp-runs and port fixes/workarounds, and to Netflix and everyone who tested prior to commit or contributed to this update in other ways. PR: 271615 PR: 271656 [exp-run] Relnotes: Yes Sponsored by: The FreeBSD Foundation
80 lines
2.8 KiB
Text
80 lines
2.8 KiB
Text
=pod
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=head1 NAME
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CMS_EnvelopedData_create_ex, CMS_EnvelopedData_create,
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CMS_AuthEnvelopedData_create, CMS_AuthEnvelopedData_create_ex
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- Create CMS envelope
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=head1 SYNOPSIS
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#include <openssl/cms.h>
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CMS_ContentInfo *
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CMS_EnvelopedData_create_ex(const EVP_CIPHER *cipher, OSSL_LIB_CTX *libctx,
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const char *propq);
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CMS_ContentInfo *CMS_EnvelopedData_create(const EVP_CIPHER *cipher);
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CMS_ContentInfo *
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CMS_AuthEnvelopedData_create_ex(const EVP_CIPHER *cipher, OSSL_LIB_CTX *libctx,
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const char *propq);
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CMS_ContentInfo *CMS_AuthEnvelopedData_create(const EVP_CIPHER *cipher);
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=head1 DESCRIPTION
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CMS_EnvelopedData_create_ex() creates a B<CMS_ContentInfo> structure
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with a type B<NID_pkcs7_enveloped>. I<cipher> is the symmetric cipher to use.
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The library context I<libctx> and the property query I<propq> are used when
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retrieving algorithms from providers.
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CMS_AuthEnvelopedData_create_ex() creates a B<CMS_ContentInfo>
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structure with a type B<NID_id_smime_ct_authEnvelopedData>. B<cipher> is the
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symmetric AEAD cipher to use. Currently only AES variants with GCM mode are
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supported. The library context I<libctx> and the property query I<propq> are
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used when retrieving algorithms from providers.
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The algorithm passed in the I<cipher> parameter must support ASN1 encoding of
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its parameters.
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The recipients can be added later using L<CMS_add1_recipient_cert(3)> or
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L<CMS_add0_recipient_key(3)>.
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The B<CMS_ContentInfo> structure needs to be finalized using L<CMS_final(3)>
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and then freed using L<CMS_ContentInfo_free(3)>.
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CMS_EnvelopedData_create() and CMS_AuthEnvelopedData_create are similar to
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CMS_EnvelopedData_create_ex() and
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CMS_AuthEnvelopedData_create_ex() but use default values of NULL for
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the library context I<libctx> and the property query I<propq>.
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=head1 NOTES
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Although CMS_EnvelopedData_create() and CMS_AuthEnvelopedData_create() allocate
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a new B<CMS_ContentInfo> structure, they are not usually used in applications.
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The wrappers L<CMS_encrypt(3)> and L<CMS_decrypt(3)> are often used instead.
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=head1 RETURN VALUES
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If the allocation fails, CMS_EnvelopedData_create() and
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CMS_AuthEnvelopedData_create() return NULL and set an error code that can be
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obtained by L<ERR_get_error(3)>. Otherwise they return a pointer to the newly
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allocated structure.
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=head1 SEE ALSO
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L<ERR_get_error(3)>, L<CMS_encrypt(3)>, L<CMS_decrypt(3)>, L<CMS_final(3)>
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=head1 HISTORY
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The CMS_EnvelopedData_create_ex() method was added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2020-2021 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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