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50 lines
1.4 KiB
Plaintext
50 lines
1.4 KiB
Plaintext
=pod
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=head1 NAME
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CMS_EncryptedData_decrypt
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- Decrypt CMS EncryptedData
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=head1 SYNOPSIS
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#include <openssl/cms.h>
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int CMS_EncryptedData_decrypt(CMS_ContentInfo *cms,
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const unsigned char *key, size_t keylen,
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BIO *dcont, BIO *out, unsigned int flags);
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=head1 DESCRIPTION
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CMS_EncryptedData_decrypt() decrypts a I<cms> EncryptedData object using the
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symmetric I<key> of size I<keylen> bytes. I<out> is a BIO to write the content
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to and I<flags> is an optional set of flags.
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I<dcont> is used in the rare case where the encrypted content is detached. It
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will normally be set to NULL.
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The following flags can be passed in the I<flags> parameter.
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If the B<CMS_TEXT> flag is set MIME headers for type C<text/plain> are deleted
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from the content. If the content is not of type C<text/plain> then an error is
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returned.
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=head1 RETURN VALUES
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CMS_EncryptedData_decrypt() returns 0 if an error occurred otherwise it
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returns 1.
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=head1 SEE ALSO
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L<ERR_get_error(3)>, L<CMS_EncryptedData_encrypt(3)>
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=head1 COPYRIGHT
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Copyright 2020-2023 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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