CMS_CONTENTINFO_NEW(3)

NAME
CMS_ContentInfo_new, CMS_ContentInfo_free, CMS_ContentInfo_print_ctx, CMS_ReceiptRequest_new, CMS_ReceiptRequest_free - Cryptographic Message Syntax data structures

SYNOPSIS
#include <openssl/cms.h>
CMS_ContentInfo *
CMS_ContentInfo_new(void);
void
CMS_ContentInfo_free(CMS_ContentInfo *cms);
int
CMS_ContentInfo_print_ctx(BIO *out, CMS_ContentInfo *cms, int indent, const ASN1_PCTX *pctx);
CMS_ReceiptRequest *
CMS_ReceiptRequest_new(void);
void
CMS_ReceiptRequest_free(CMS_ReceiptRequest *rr);

DESCRIPTION
CMS_ContentInfo_new() allocates and initializes an empty CMS_ContentInfo object, representing an ASN.1 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 SignedData, EnvelopedData, DigestedData, EncryptedData, AuthenticatedData, or CompressedData object or to an arbitrary ASN.1 object. CMS_ContentInfo_free() frees cms.

CMS_ContentInfo_print_ctx() prints a human readable representation of cms to out.

CMS_ReceiptRequest_new() allocates and initializes an empty CMS_ReceiptRequest object, representing an ASN.1 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. CMS_ReceiptRequest_free() frees rr.

RETURN VALUES
CMS_ContentInfo_new() and CMS_ReceiptRequest_new() return the new CMS_ContentInfo or CMS_ReceiptRequest object, respectively, or NULL if an error occurs.

SEE ALSO
BIO_new_CMS(3), CMS_add0_cert(3), CMS_add1_recipient_cert(3), CMS_add1_signer(3), CMS_compress(3), CMS_decrypt(3), CMS_encrypt(3), CMS_final(3), CMS_get0_RecipientInfos(3), CMS_get0_SignerInfos(3), CMS_get0_type(3), CMS_get1_ReceiptRequest(3), CMS_sign(3), CMS_sign_receipt(3), CMS_uncompress(3), CMS_verify(3), CMS_verify_receipt(3), crypto(3), d2i_CMS_ContentInfo(3), i2d_CMS_bio_stream(3), PEM_read_bio_PrivateKey(3), PEM_write_bio_CMS_stream(3), SMIME_read_CMS(3), SMIME_write_CMS(3)

STANDARDS
RFC 5652: Cryptographic Message Syntax, section 3: General Syntax

RFC 3274: Compressed Data Content Type for Cryptographic Message Syntax (CMS)

RFC 2634: Enhanced Security Services for S/MIME, section 2.7: Receipt Request Syntax

HISTORY
CMS_ContentInfo_new(), CMS_ContentInfo_free(), CMS_ReceiptRequest_new(), and CMS_ReceiptRequest_free() first appeared in OpenSSL 0.9.8h and CMS_ContentInfo_print_ctx() in OpenSSL 1.0.0. This functions have been available since OpenBSD 6.7.