^ abNonnenberg, Scott (31 Oktober 2017). "Standalone Signal Desktop". Open Whisper Systems. Diarsipkan dari versi aslinya tanggal 15 Februari 2020. Diakses tanggal 31 Oktober 2017.
Cohn-Gordon, Katriel; Cremers, Cas; Dowling, Benjamin; Garratt, Luke; Stebila, Douglas (25 October 2016). "A Formal Security Analysis of the Signal Messaging Protocol"(PDF). Cryptology ePrint Archive. International Association for Cryptologic Research (IACR). Diarsipkan(PDF) dari versi aslinya tanggal 22 February 2017. Diakses tanggal 11 December 2016. Pemeliharaan CS1: Ref menduplikasi bawaan (link)
Frosch, Tilman; Mainka, Christian; Bader, Christoph; Bergsma, Florian; Schwenk, Jörg; Holz, Thorsten (March 2016). How Secure is TextSecure?. 2016 IEEE European Symposium on Security and Privacy (EuroS&P). Saarbrücken, Germany: IEEE. hlm. 457–472. doi:10.1109/EuroSP.2016.41. ISBN978-1-5090-1752-2. Pemeliharaan CS1: Ref menduplikasi bawaan (link)
Rottermanner, Christoph; Kieseberg, Peter; Huber, Markus; Schmiedecker, Martin; Schrittwieser, Sebastian (December 2015). Privacy and Data Protection in Smartphone Messengers(PDF). Proceedings of the 17th International Conference on Information Integration and Web-based Applications & Services (iiWAS2015). ACM International Conference Proceedings Series. ISBN978-1-4503-3491-4. Diarsipkan(PDF) dari versi aslinya tanggal 27 March 2016. Diakses tanggal 18 March 2016. Pemeliharaan CS1: Ref menduplikasi bawaan (link)
Unger, Nik; Dechand, Sergej; Bonneau, Joseph; Fahl, Sascha; Perl, Henning; Goldberg, Ian Avrum; Smith, Matthew (2015). SoK: Secure Messaging(PDF). Proceedings of the 2015 IEEE Symposium on Security and Privacy. IEEE Computer Society's Technical Committee on Security and Privacy. hlm. 232–249. doi:10.1109/SP.2015.22. Diarsipkan(PDF) dari versi aslinya tanggal 2016-03-04. Diakses tanggal 2016-03-19. Pemeliharaan CS1: Ref menduplikasi bawaan (link)