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Artech House UK
End-to-End Encrypted Messaging

End-to-End Encrypted Messaging

By (author): Rolf Oppliger
Copyright: 2020
Pages: 230
ISBN: 9781630817336

eBook £101.00

This book introduces the core technologies that are used for Internet messaging. The major cryptographic techniques that are used for secure and end to end encryption (E2EE) messaging on the Internet are explored. The notion of “secure” and E2EE messaging and various approaches to address it is discussed. A comprehensive treatment of Pretty Good Privacy (PGP) and OpenPGP as well as Secure/Multipurpose Internet Mail Extensions (S/MIME) is given, as well as the evolutionary improvements to PGP/OpenPGP and S/MIME that have been proposed in the past. The different E2EE messengers that have been made available in the last decade are provided and what Signal protocol that is core to E2EE messaging today.


The book explains how the Signal protocol is implemented in WhatsApp, and addresses privacy issues related to E2EE messengers. It addresses the notion of self-destructing messages (as originally introduced by SnapChat) and the use of metadata to perform traffic analysis.

Introduction; Internet Messaging; Cryptographic Techniques; Secure Messaging; OpenPGP; S/MIME; Evolutionary Improvements; OTR; Signal; WhatsApp; Other E2EE Messengers; Privacy Issues; Conclusions and Outlook.

  • Rolf Oppliger Rolf Oppliger leads eSECURITY Technologies, works for the Swiss federal administration, serves as an adjunct professor of computer science at the University of Z¸rich, Switzerland, and is the Information Security and Privacy editor at Artech House. He earned his Ph.D. in computer science from the University of Berne, Switzerland.
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