| 1 | =pod
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| 2 |
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| 3 | =head1 NAME
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| 4 |
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| 5 | CMS_add0_cert, CMS_add1_cert, CMS_get1_certs, CMS_add0_crl, CMS_add1_crl, CMS_get1_crls
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| 6 | - CMS certificate and CRL utility functions
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| 7 |
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| 8 | =head1 SYNOPSIS
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| 9 |
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| 10 | #include <openssl/cms.h>
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| 11 |
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| 12 | int CMS_add0_cert(CMS_ContentInfo *cms, X509 *cert);
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| 13 | int CMS_add1_cert(CMS_ContentInfo *cms, X509 *cert);
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| 14 | STACK_OF(X509) *CMS_get1_certs(CMS_ContentInfo *cms);
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| 15 |
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| 16 | int CMS_add0_crl(CMS_ContentInfo *cms, X509_CRL *crl);
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| 17 | int CMS_add1_crl(CMS_ContentInfo *cms, X509_CRL *crl);
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| 18 | STACK_OF(X509_CRL) *CMS_get1_crls(CMS_ContentInfo *cms);
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| 19 |
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| 20 | =head1 DESCRIPTION
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| 21 |
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| 22 | CMS_add0_cert() and CMS_add1_cert() add certificate I<cert> to I<cms>.
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| 23 | I<cms> must be of type signed data or (authenticated) enveloped data.
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| 24 | For signed data, such a certificate can be used when signing or verifying
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| 25 | to fill in the signer certificate or to provide an extra CA certificate
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| 26 | that may be needed for chain building in certificate validation.
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| 27 |
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| 28 | CMS_get1_certs() returns all certificates in I<cms>.
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| 29 |
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| 30 | CMS_add0_crl() and CMS_add1_crl() add CRL I<crl> to I<cms>.
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| 31 | I<cms> must be of type signed data or (authenticated) enveloped data.
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| 32 | For signed data, such a CRL may be used in certificate validation.
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| 33 | It may be given both for inclusion when signing a CMS message
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| 34 | and when verifying a signed CMS message.
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| 35 |
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| 36 | CMS_get1_crls() returns all CRLs in I<cms>.
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| 37 |
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| 38 | =head1 NOTES
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| 39 |
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| 40 | The CMS_ContentInfo structure I<cms> must be of type signed data or enveloped
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| 41 | data or an error will be returned.
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| 42 |
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| 43 | For signed data certificates and CRLs are added to the I<certificates> and
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| 44 | I<crls> fields of SignedData structure. For enveloped data they are added to
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| 45 | B<OriginatorInfo>.
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| 46 |
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| 47 | As the I<0> implies CMS_add0_cert() adds I<cert> internally to I<cms> and it
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| 48 | must not be freed up after the call as opposed to CMS_add1_cert() where I<cert>
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| 49 | must be freed up.
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| 50 |
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| 51 | The same certificate or CRL must not be added to the same cms structure more
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| 52 | than once.
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| 53 |
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| 54 | =head1 RETURN VALUES
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| 55 |
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| 56 | CMS_add0_cert(), CMS_add1_cert() and CMS_add0_crl() and CMS_add1_crl() return
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| 57 | 1 for success and 0 for failure.
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| 58 |
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| 59 | CMS_get1_certs() and CMS_get1_crls() return the STACK of certificates or CRLs
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| 60 | or NULL if there are none or an error occurs. The only error which will occur
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| 61 | in practice is if the I<cms> type is invalid.
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| 62 |
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| 63 | =head1 SEE ALSO
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| 64 |
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| 65 | L<ERR_get_error(3)>,
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| 66 | L<CMS_sign(3)>,
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| 67 | L<CMS_encrypt(3)>
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| 68 |
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| 69 | =head1 COPYRIGHT
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| 70 |
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| 71 | Copyright 2008-2022 The OpenSSL Project Authors. All Rights Reserved.
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| 72 |
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| 73 | Licensed under the Apache License 2.0 (the "License"). You may not use
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| 74 | this file except in compliance with the License. You can obtain a copy
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| 75 | in the file LICENSE in the source distribution or at
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| 76 | L<https://www.openssl.org/source/license.html>.
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| 77 |
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| 78 | =cut
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