CMS_ReceiptRequest_create0_ex, CMS_ReceiptRequest_create0, CMS_add1_ReceiptRequest,

       Copyright 2008-2021 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
       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                      CMS_GET1_RECEIPTREQUEST(3SSL)

CMS_ReceiptRequest_create0_ex() creates a signed receipt request structure. The signedContentIdentifier
       field is set using id and idlen, or it is set to 32 bytes of pseudo random data if id is NULL.  If
       receiptList is NULL the allOrFirstTier option in receiptsFrom is used and set to the value of the
       allorfirst parameter. If receiptList is not NULL the receiptList option in receiptsFrom is used. The
       receiptsTo parameter specifies the receiptsTo field value. The library context libctx is used to find the
       public random generator.

       CMS_ReceiptRequest_create0() is similar to CMS_ReceiptRequest_create0_ex() but uses default values of
       NULL for the library context libctx.

       The CMS_add1_ReceiptRequest() function adds a signed receipt request rr to SignerInfo structure si.

       int CMS_get1_ReceiptRequest() looks for a signed receipt request in si, if any is found it is decoded and
       written to prr.

       CMS_ReceiptRequest_get0_values() retrieves the values of a receipt request.  The signedContentIdentifier
       is copied to pcid. If the allOrFirstTier option of receiptsFrom is used its value is copied to
       pallorfirst otherwise the receiptList field is copied to plist. The receiptsTo parameter is copied to
       prto.

       The function CMS_ReceiptRequest_create0_ex() was added in OpenSSL 3.0.

       CMS_ReceiptRequest_create0_ex, CMS_ReceiptRequest_create0, CMS_add1_ReceiptRequest,
       CMS_get1_ReceiptRequest, CMS_ReceiptRequest_get0_values - CMS signed receipt request functions

       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().

CMS_ReceiptRequest_create0_ex() 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.

ERR_get_error(3), CMS_sign(3), CMS_sign_receipt(3), CMS_verify(3) CMS_verify_receipt(3)

        #include <openssl/cms.h>

        CMS_ReceiptRequest *CMS_ReceiptRequest_create0_ex(
            unsigned char *id, int idlen, int allorfirst,
            STACK_OF(GENERAL_NAMES) *receiptList, STACK_OF(GENERAL_NAMES) *receiptsTo,
            OSSL_LIB_CTX *libctx);
        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);