1e1051a39Sopenharmony_ci=pod 2e1051a39Sopenharmony_ci 3e1051a39Sopenharmony_ci=head1 NAME 4e1051a39Sopenharmony_ci 5e1051a39Sopenharmony_ciCMS_EncryptedData_decrypt 6e1051a39Sopenharmony_ci- Decrypt CMS EncryptedData 7e1051a39Sopenharmony_ci 8e1051a39Sopenharmony_ci=head1 SYNOPSIS 9e1051a39Sopenharmony_ci 10e1051a39Sopenharmony_ci #include <openssl/cms.h> 11e1051a39Sopenharmony_ci 12e1051a39Sopenharmony_ci int CMS_EncryptedData_decrypt(CMS_ContentInfo *cms, 13e1051a39Sopenharmony_ci const unsigned char *key, size_t keylen, 14e1051a39Sopenharmony_ci BIO *dcont, BIO *out, unsigned int flags); 15e1051a39Sopenharmony_ci 16e1051a39Sopenharmony_ci=head1 DESCRIPTION 17e1051a39Sopenharmony_ci 18e1051a39Sopenharmony_ciCMS_EncryptedData_decrypt() decrypts a I<cms> EncryptedData object using the 19e1051a39Sopenharmony_cisymmetric I<key> of size I<keylen> bytes. I<out> is a BIO to write the content 20e1051a39Sopenharmony_cito and I<flags> is an optional set of flags. 21e1051a39Sopenharmony_ciI<dcont> is used in the rare case where the encrypted content is detached. It 22e1051a39Sopenharmony_ciwill normally be set to NULL. 23e1051a39Sopenharmony_ci 24e1051a39Sopenharmony_ciThe following flags can be passed in the I<flags> parameter. 25e1051a39Sopenharmony_ci 26e1051a39Sopenharmony_ciIf the B<CMS_TEXT> flag is set MIME headers for type C<text/plain> are deleted 27e1051a39Sopenharmony_cifrom the content. If the content is not of type C<text/plain> then an error is 28e1051a39Sopenharmony_cireturned. 29e1051a39Sopenharmony_ci 30e1051a39Sopenharmony_ci=head1 RETURN VALUES 31e1051a39Sopenharmony_ci 32e1051a39Sopenharmony_ciCMS_EncryptedData_decrypt() returns 0 if an error occurred otherwise it 33e1051a39Sopenharmony_cireturns 1. 34e1051a39Sopenharmony_ci 35e1051a39Sopenharmony_ci=head1 SEE ALSO 36e1051a39Sopenharmony_ci 37e1051a39Sopenharmony_ciL<ERR_get_error(3)>, L<CMS_EncryptedData_encrypt(3)> 38e1051a39Sopenharmony_ci 39e1051a39Sopenharmony_ci 40e1051a39Sopenharmony_ci=head1 COPYRIGHT 41e1051a39Sopenharmony_ci 42e1051a39Sopenharmony_ciCopyright 2020-2023 The OpenSSL Project Authors. All Rights Reserved. 43e1051a39Sopenharmony_ci 44e1051a39Sopenharmony_ciLicensed under the Apache License 2.0 (the "License"). You may not use 45e1051a39Sopenharmony_cithis file except in compliance with the License. You can obtain a copy 46e1051a39Sopenharmony_ciin the file LICENSE in the source distribution or at 47e1051a39Sopenharmony_ciL<https://www.openssl.org/source/license.html>. 48e1051a39Sopenharmony_ci 49e1051a39Sopenharmony_ci=cut 50