openssl/doc/man3/CMS_get1_ReceiptRequest.pod
Shane Lontis c1669f41ea Add libctx support to CMS.
-Public CMS methods that create a CMS_ContentInfo object now have variants that also add a libctx and propq.
 This includes CMS_ContentInfo_new_with_libctx(), CMS_sign_with_libctx(), CMS_data_create_with_libctx(),
 CMS_digest_create_with_libctx(), CMS_EncryptedData_encrypt_with_libctx(), CMS_EnvelopedData_create_with_libctx().
-Added CMS_ReceiptRequest_create0_with_libctx().
-Added SMIME_read_CMS_ex() so that a new CMS_ContentInfo object (created using CMS_ContentInfo_new_with_libctx()) can
be passed to the read.
-d2i_CMS_bio() has been modified so that after it loads the CMS_ContentInfo() it then resolves any subobjects that require
 the libctx/propq (such as objects containing X509 certificates).

Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/11884)
2020-08-09 17:34:52 +10:00

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=pod
=head1 NAME
CMS_ReceiptRequest_create0_with_libctx, CMS_ReceiptRequest_create0,
CMS_add1_ReceiptRequest, CMS_get1_ReceiptRequest, CMS_ReceiptRequest_get0_values
- CMS signed receipt request functions
=head1 SYNOPSIS
#include <openssl/cms.h>
CMS_ReceiptRequest *CMS_ReceiptRequest_create0_with_libctx(
unsigned char *id, int idlen, int allorfirst,
STACK_OF(GENERAL_NAMES) *receiptList, STACK_OF(GENERAL_NAMES) *receiptsTo,
OPENSSL_CTX *libctx, const char *propq);
CMS_ReceiptRequest *CMS_ReceiptRequest_create0(
unsigned char *id, int idlen, int allorfirst,
STACK_OF(GENERAL_NAMES) *receiptList, STACK_OF(GENERAL_NAMES) *receiptsTo);
int CMS_add1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest *rr);
int CMS_get1_ReceiptRequest(CMS_SignerInfo *si, CMS_ReceiptRequest **prr);
void CMS_ReceiptRequest_get0_values(CMS_ReceiptRequest *rr, ASN1_STRING **pcid,
int *pallorfirst,
STACK_OF(GENERAL_NAMES) **plist,
STACK_OF(GENERAL_NAMES) **prto);
=head1 DESCRIPTION
CMS_ReceiptRequest_create0_with_libctx() creates a signed receipt request
structure. The B<signedContentIdentifier> field is set using I<id> and I<idlen>,
or it is set to 32 bytes of pseudo random data if I<id> is NULL.
If I<receiptList> is NULL the allOrFirstTier option in I<receiptsFrom> is used
and set to the value of the I<allorfirst> parameter. If I<receiptList> is not
NULL the I<receiptList> option in I<receiptsFrom> is used. The I<receiptsTo>
parameter specifies the I<receiptsTo> field value. The library context I<libctx>
and the property query I<propq> are used when retrieving algorithms from providers.
CMS_ReceiptRequest_create0() is similar to
CMS_ReceiptRequest_create0_with_libctx() but uses default values of NULL for the
library context I<libctx> and the property query I<propq>.
The CMS_add1_ReceiptRequest() function adds a signed receipt request B<rr>
to SignerInfo structure B<si>.
int CMS_get1_ReceiptRequest() looks for a signed receipt request in B<si>, if
any is found it is decoded and written to B<prr>.
CMS_ReceiptRequest_get0_values() retrieves the values of a receipt request.
The signedContentIdentifier is copied to B<pcid>. If the B<allOrFirstTier>
option of B<receiptsFrom> is used its value is copied to B<pallorfirst>
otherwise the B<receiptList> field is copied to B<plist>. The B<receiptsTo>
parameter is copied to B<prto>.
=head1 NOTES
For more details of the meaning of the fields see RFC2634.
The contents of a signed receipt should only be considered meaningful if the
corresponding CMS_ContentInfo structure can be successfully verified using
CMS_verify().
=head1 RETURN VALUES
CMS_ReceiptRequest_create0_with_libctx() and CMS_ReceiptRequest_create0() return
a signed receipt request structure or NULL if an error occurred.
CMS_add1_ReceiptRequest() returns 1 for success or 0 if an error occurred.
CMS_get1_ReceiptRequest() returns 1 is a signed receipt request is found and
decoded. It returns 0 if a signed receipt request is not present and -1 if
it is present but malformed.
=head1 SEE ALSO
L<ERR_get_error(3)>, L<CMS_sign(3)>,
L<CMS_sign_receipt(3)>, L<CMS_verify(3)>
L<CMS_verify_receipt(3)>
=head1 HISTORY
The function CMS_ReceiptRequest_create0_with_libctx() was added in OpenSSL 3.0.
=head1 COPYRIGHT
Copyright 2008-2020 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut