File formats:

Status:

EXPERIMENTAL

Authors:

A. Bittau
D. Giffin
M. Handley
D. Mazieres
E. Smith

Stream:

IETF

Source:

tcpinc (tsv)

Cite this RFC: TXT  |  XML  |   BibTeX

DOI:  https://doi.org/10.17487/RFC8547

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Abstract

Despite growing adoption of TLS, a significant fraction of TCP traffic on the Internet remains unencrypted. The persistence of unencrypted traffic can be attributed to at least two factors. First, some legacy protocols lack a signaling mechanism (such as a STARTTLS command) by which to convey support for encryption, thus making incremental deployment impossible. Second, legacy applications themselves cannot always be upgraded and therefore require a way to implement encryption transparently entirely within the transport layer. The TCP Encryption Negotiation Option (TCP-ENO) addresses both of these problems through a new TCP option kind providing out-of-band, fully backward-compatible negotiation of encryption.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.