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Summarizing Known Attacks on Transport Layer Security (TLS) and Datagram TLS (DTLS) (RFC7457) Disclosure Number: IPCOM000240536D
Original Publication Date: 2015-Feb-01
Included in the Prior Art Database: 2015-Feb-06
Document File: 26 page(s) / 29K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

Y. Sheffer: AUTHOR [+2]


Over the last few years, there have been several major attacks on TLS [RFC5246], including attacks on its most commonly used ciphers and modes of operation. Details are given in Section 2, but a quick summary is that both AES-CBC and RC4, which together make up for most current usage, have been seriously attacked in the context of TLS.

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Internet Engineering Task Force (IETF)                        Y. Sheffer Request for Comments: 7457                                      Porticor Category: Informational                                          R. Holz ISSN: 2070-1721                         Technische Universitaet Muenchen                                                           P. Saint-Andre                                                                     &yet                                                            February 2015

       Summarizing Known Attacks on Transport Layer Security (TLS)                         and Datagram TLS (DTLS)


   Over the last few years, there have been several serious attacks on    Transport Layer Security (TLS), including attacks on its most    commonly used ciphers and modes of operation.  This document    summarizes these attacks, with the goal of motivating generic and    protocol-specific recommendations on the usage of TLS and Datagram    TLS (DTLS).

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Not all documents    approved by the IESG are a candidate for any level of Internet    Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Sheffer, et al.               Informational                     [Page 1]
 RFC 7457                       TLS Attacks                 February 2015

 Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the    document authors.  All rights reserved.

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