RFC 7507

TLS Fallback Signaling Cipher Suite Value (SCSV) for Preventing Protocol Downgrade Attacks, April 2015

Canonical URL:
https://www.rfc-editor.org/rfc/rfc7507.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Updates:
RFC 2246, RFC 4346, RFC 4347, RFC 5246, RFC 6347
Authors:
B. Moeller
A. Langley
Stream:
IETF
Source:
tls (sec)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC7507

Discuss this RFC: Send questions or comments to tls@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

This document defines a Signaling Cipher Suite Value (SCSV) that prevents protocol downgrade attacks on the Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS) protocols. It updates RFCs 2246, 4346, 4347, 5246, and 6347. Server update considerations are included.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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