A5/1 (English Wikipedia)

Quirke, Jeremy (1 May 2004). "Security in the GSM system" (PDF). AusMobile. Archived from the original (PDF) on 12 July 2004. Retrieved 8 September 2008.

ccc.de

events.ccc.de

Nohl, Karsten; Chris Paget (27 December 2009). GSM: SRSLY?. 26th Chaos Communication Congress (26C3). Archived from the original on 6 January 2010. Retrieved 30 December 2009.

crypto.com

Biryukov, Alex; Adi Shamir; David Wagner (2001). "Real Time Cryptanalysis of A5/1 on a PC". Fast Software Encryption—FSE 2000. Lecture Notes in Computer Science. Vol. 1978. pp. 1–18. doi:10.1007/3-540-44706-7_1. ISBN 978-3-540-41728-6.

doi.org

Biryukov, Alex; Adi Shamir; David Wagner (2001). "Real Time Cryptanalysis of A5/1 on a PC". Fast Software Encryption—FSE 2000. Lecture Notes in Computer Science. Vol. 1978. pp. 1–18. doi:10.1007/3-540-44706-7_1. ISBN 978-3-540-41728-6.
Golić, Jovan Dj. (1997). "Cryptanalysis of Alleged A5 Stream Cipher" (PDF). Eurocrypt 1997. Lecture Notes in Computer Science. Vol. 1233. pp. 239–55. doi:10.1007/3-540-69053-0_17. ISBN 978-3-540-62975-7. Archived from the original (PDF) on 15 July 2010. Retrieved 13 January 2016.
Biham, Eli; Orr Dunkelman (2000). "Cryptanalysis of the A5/1 GSM Stream Cipher". Progress in Cryptology —INDOCRYPT 2000. Lecture Notes in Computer Science. Vol. 1977. pp. 43–51. doi:10.1007/3-540-44495-5_5. ISBN 978-3-540-41452-0.
Ekdahl, Patrik; Thomas Johansson (2003). "Another attack on A5/1" (PDF). IEEE Transactions on Information Theory. 49 (1): 284–89. doi:10.1109/TIT.2002.806129. Archived from the original (PDF) on 25 May 2005.
Barkan, Elad; Eli Biham; Nathan Keller (2003). "Instant Ciphertext-Only Cryptanalysis of GSM Encrypted Communication". Advances in Cryptology - CRYPTO 2003. Lecture Notes in Computer Science. Vol. 2729. pp. 600–16. doi:10.1007/978-3-540-45146-4_35. ISBN 978-3-540-40674-7.
Gueneysu, Tim; Timo Kasper; Martin Novotný; Christof Paar; Andy Rupp (2008). "Cryptanalysis with COPACOBANA" (PDF). IEEE Transactions on Computers. 57 (11): 1498–1513. doi:10.1109/TC.2008.80. S2CID 8754598.

groups.google.com

Ross Anderson (17 June 1994). "A5 (Was: HACKING DIGITAL PHONES)". Newsgroup: uk.telecom. Usenet: 2ts9a0$95r@lyra.csx.cam.ac.uk.

har2009.org

"Archived copy" (PDF). Archived from the original (PDF) on 26 July 2011. Retrieved 29 December 2009.{{cite web}}: CS1 maint: archived copy as title (link) Subverting the security base of GSM. Karsten Nohl and Sascha Krißler

lth.se

it.lth.se

Ekdahl, Patrik; Thomas Johansson (2003). "Another attack on A5/1" (PDF). IEEE Transactions on Information Theory. 49 (1): 284–89. doi:10.1109/TIT.2002.806129. Archived from the original (PDF) on 25 May 2005.

nytimes.com

O'Brien, Kevin (28 December 2009). "Cellphone Encryption Code Is Divulged". New York Times. Archived from the original on 29 April 2011. Retrieved 29 December 2009.

pcworld.com

McMillan, Robert. "Hackers Show It's Easy to Snoop on a GSM Call". IDG News Service. Archived from the original on 20 January 2012. Retrieved 29 December 2009.

reflextor.com

lists.lists.reflextor.com

Frank A. Stevenson (1 May 2010). "Cracks beginning to show in A5/1". Archived from the original on 6 March 2012.

sciengines.com

Gueneysu, Tim; Timo Kasper; Martin Novotný; Christof Paar; Andy Rupp (2008). "Cryptanalysis with COPACOBANA" (PDF). IEEE Transactions on Computers. 57 (11): 1498–1513. doi:10.1109/TC.2008.80. S2CID 8754598.

semanticscholar.org

api.semanticscholar.org

Gueneysu, Tim; Timo Kasper; Martin Novotný; Christof Paar; Andy Rupp (2008). "Cryptanalysis with COPACOBANA" (PDF). IEEE Transactions on Computers. 57 (11): 1498–1513. doi:10.1109/TC.2008.80. S2CID 8754598.

slashdot.org

yro.slashdot.org

NSA Able To Crack A5/1 Cellphone Crypto - Slashdot

technion.ac.il

cs.technion.ac.il

Barkan, Elad; Eli Biham; Nathan Keller. "Instant Ciphertext-Only Cryptanalysis of GSM Encrypted Communication by Barkan and Biham of Technion (Full Version)" (PDF). Archived from the original (PDF) on 25 January 2020. Retrieved 15 September 2019.

uconn.edu

saluc.engr.uconn.edu

Golić, Jovan Dj. (1997). "Cryptanalysis of Alleged A5 Stream Cipher" (PDF). Eurocrypt 1997. Lecture Notes in Computer Science. Vol. 1233. pp. 239–55. doi:10.1007/3-540-69053-0_17. ISBN 978-3-540-62975-7. Archived from the original (PDF) on 15 July 2010. Retrieved 13 January 2016.

washingtonpost.com

Timberg, Craig; Soltani, Ashkan (13 December 2013). "By cracking cellphone code, NSA has ability to decode private conversations". The Washington Post. Retrieved 28 September 2016.

web.archive.org

Quirke, Jeremy (1 May 2004). "Security in the GSM system" (PDF). AusMobile. Archived from the original (PDF) on 12 July 2004. Retrieved 8 September 2008.
Golić, Jovan Dj. (1997). "Cryptanalysis of Alleged A5 Stream Cipher" (PDF). Eurocrypt 1997. Lecture Notes in Computer Science. Vol. 1233. pp. 239–55. doi:10.1007/3-540-69053-0_17. ISBN 978-3-540-62975-7. Archived from the original (PDF) on 15 July 2010. Retrieved 13 January 2016.
Ekdahl, Patrik; Thomas Johansson (2003). "Another attack on A5/1" (PDF). IEEE Transactions on Information Theory. 49 (1): 284–89. doi:10.1109/TIT.2002.806129. Archived from the original (PDF) on 25 May 2005.
Barkan, Elad; Eli Biham; Nathan Keller. "Instant Ciphertext-Only Cryptanalysis of GSM Encrypted Communication by Barkan and Biham of Technion (Full Version)" (PDF). Archived from the original (PDF) on 25 January 2020. Retrieved 15 September 2019.
Nohl, Karsten; Chris Paget (27 December 2009). GSM: SRSLY?. 26th Chaos Communication Congress (26C3). Archived from the original on 6 January 2010. Retrieved 30 December 2009.
"Archived copy" (PDF). Archived from the original (PDF) on 26 July 2011. Retrieved 29 December 2009.{{cite web}}: CS1 maint: archived copy as title (link) Subverting the security base of GSM. Karsten Nohl and Sascha Krißler
O'Brien, Kevin (28 December 2009). "Cellphone Encryption Code Is Divulged". New York Times. Archived from the original on 29 April 2011. Retrieved 29 December 2009.
McMillan, Robert. "Hackers Show It's Easy to Snoop on a GSM Call". IDG News Service. Archived from the original on 20 January 2012. Retrieved 29 December 2009.
Frank A. Stevenson (1 May 2010). "Cracks beginning to show in A5/1". Archived from the original on 6 March 2012.