CMS_ContentInfo_new.3

.\" $OpenBSD: CMS_ContentInfo_new.3,v 1.4 2024/01/22 14:00:13 tb Exp $
.\" Copyright (c) 2019 Ingo Schwarze <schwarze@openbsd.org>
.\"
.\" Permission to use, copy, modify, and distribute this software for any
.\" purpose with or without fee is hereby granted, provided that the above
.\" copyright notice and this permission notice appear in all copies.
.\"
.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
.\"
.Dd $Mdocdate: January 22 2024 $
.Dt CMS_CONTENTINFO_NEW 3
.Os
.Sh NAME
.Nm CMS_ContentInfo_new ,
.Nm CMS_ContentInfo_free ,
.Nm CMS_ContentInfo_print_ctx ,
.Nm CMS_ReceiptRequest_new ,
.Nm CMS_ReceiptRequest_free
.Nd Cryptographic Message Syntax data structures
.Sh SYNOPSIS
.In openssl/cms.h
.Ft CMS_ContentInfo *
.Fn CMS_ContentInfo_new void
.Ft void
.Fn CMS_ContentInfo_free "CMS_ContentInfo *cms"
.Ft int
.Fo CMS_ContentInfo_print_ctx
.Fa "BIO *out"
.Fa "CMS_ContentInfo *cms"
.Fa "int indent"
.Fa "const ASN1_PCTX *pctx"
.Fc
.Ft CMS_ReceiptRequest *
.Fn CMS_ReceiptRequest_new void
.Ft void
.Fn CMS_ReceiptRequest_free "CMS_ReceiptRequest *rr"
.Sh DESCRIPTION
.Fn CMS_ContentInfo_new
allocates and initializes an empty
.Vt CMS_ContentInfo
object, representing an ASN.1
.Vt ContentInfo
structure defined in RFC 5652 section 3.
It can hold a pointer to an ASN.1 OBJECT IDENTIFIER
and a pointer to either a
.Vt SignedData ,
.Vt EnvelopedData ,
.Vt DigestedData ,
.Vt EncryptedData ,
.Vt AuthenticatedData ,
or
.Vt CompressedData
object or to an arbitrary ASN.1 object.
.Fn CMS_ContentInfo_free
frees
.Fa cms .
.Pp
.Fn CMS_ContentInfo_print_ctx
prints a human readable representation of
.Fa cms
to
.Fa out .
.Pp
.Fn CMS_ReceiptRequest_new
allocates and initializes an empty
.Vt CMS_ReceiptRequest
object, representing an ASN.1
.Vt ReceiptRequest
structure defined in RFC 2634 section 2.7.
It can contain a content identifier, a list of recipients requested
to return a signed receipt, and a list of users to send the receipt to.
.Fn CMS_ReceiptRequest_free
frees
.Fa rr .
.Sh RETURN VALUES
.Fn CMS_ContentInfo_new
and
.Fn CMS_ReceiptRequest_new
return the new
.Vt CMS_ContentInfo
or
.Vt CMS_ReceiptRequest
object, respectively, or
.Dv NULL
if an error occurs.
.Sh SEE ALSO
.Xr BIO_new_CMS 3 ,
.Xr CMS_add0_cert 3 ,
.Xr CMS_add1_recipient_cert 3 ,
.Xr CMS_add1_signer 3 ,
.Xr CMS_compress 3 ,
.Xr CMS_decrypt 3 ,
.Xr CMS_encrypt 3 ,
.Xr CMS_final 3 ,
.Xr CMS_get0_RecipientInfos 3 ,
.Xr CMS_get0_SignerInfos 3 ,
.Xr CMS_get0_type 3 ,
.Xr CMS_get1_ReceiptRequest 3 ,
.Xr CMS_sign 3 ,
.Xr CMS_sign_receipt 3 ,
.Xr CMS_signed_add1_attr 3 ,
.Xr CMS_uncompress 3 ,
.Xr CMS_verify 3 ,
.Xr CMS_verify_receipt 3 ,
.Xr crypto 3 ,
.Xr d2i_CMS_ContentInfo 3 ,
.Xr i2d_CMS_bio_stream 3 ,
.Xr PEM_read_bio_PrivateKey 3 ,
.Xr PEM_write_bio_CMS_stream 3 ,
.Xr SMIME_read_CMS 3 ,
.Xr SMIME_write_CMS 3
.Sh STANDARDS
RFC 5652: Cryptographic Message Syntax, section 3: General Syntax
.Pp
RFC 3274: Compressed Data Content Type for Cryptographic Message Syntax (CMS)
.Pp
RFC 2634: Enhanced Security Services for S/MIME,
section 2.7: Receipt Request Syntax
.Sh HISTORY
.Fn CMS_ContentInfo_new ,
.Fn CMS_ContentInfo_free ,
.Fn CMS_ReceiptRequest_new ,
and
.Fn CMS_ReceiptRequest_free
first appeared in OpenSSL 0.9.8h and
.Fn CMS_ContentInfo_print_ctx
in OpenSSL 1.0.0.
This functions have been available since
.Ox 6.7 .