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) Abstract Over the last few years, there have been several serious attacks on Transport Layer Security (TLS), includ