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Packed CBOR

Document Type Replaced Internet-Draft (candidate for cbor WG)
Author Carsten Bormann
Last updated 2020-09-02 (Latest revision 2020-07-25)
Replaced by draft-ietf-cbor-packed
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
Stream WG state Call For Adoption By WG Issued
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-cbor-packed
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The Concise Binary Object Representation (CBOR, RFC 7049) is a data format whose design goals include the possibility of extremely small code size, fairly small message size, and extensibility without the need for version negotiation. CBOR does not provide any forms of data compression. CBOR data items, in particular when generated from legacy data models often allow considerable gains in compactness when applying data compression. While traditional data compression techniques such as DEFLATE (RFC 1951) work well for CBOR, their disadvantage is that the receiver needs to unpack the compressed form to make use of data. This specification describes Packed CBOR, a simple transformation of a CBOR data item into another CBOR data item that is almost as easy to consume as the original CBOR data item. A separate decompression step is therefore often not required at the receiver.


Carsten Bormann

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)