Backdoor found in 2G mobile data encryption standard
Cryptanalysis of GPRS Encryption Algorithms GEA-1 suggest intentional weakness
GPRS is the mobile data standard for GSM mobile phones. It's from the 2G era, and is old and slow. GEA-1 is an encryption algorithm used with GPRS.
Excerpt from the abstract:
"This paper presents the first publicly available cryptanalytic attacks on the GEA-1 and GEA-2 algorithms."
[..]
"This unusual pattern indicates that the weakness is intentionally hidden to limit the security level to 40 bit by design."
So in other words: GPRS was intentionally backdoored.
https://eprint.iacr.org/2021/819
Comments
https://news.ycombinator.com/item?id=27686422
https://apnews.com/article/europe-technology-business-3bddc473856a9af259feb511f58a51d3
https://link.springer.com/chapter/10.1007%2F978-3-030-77886-6_6
https://www.sueddeutsche.de/wirtschaft/handy-gprs-verschluesselung-1.5323228
#backdoor #2g #gprs #encryption
Cryptanalysis of GPRS Encryption Algorithms GEA-1 suggest intentional weakness
GPRS is the mobile data standard for GSM mobile phones. It's from the 2G era, and is old and slow. GEA-1 is an encryption algorithm used with GPRS.
Excerpt from the abstract:
"This paper presents the first publicly available cryptanalytic attacks on the GEA-1 and GEA-2 algorithms."
[..]
"This unusual pattern indicates that the weakness is intentionally hidden to limit the security level to 40 bit by design."
So in other words: GPRS was intentionally backdoored.
https://eprint.iacr.org/2021/819
Comments
https://news.ycombinator.com/item?id=27686422
https://apnews.com/article/europe-technology-business-3bddc473856a9af259feb511f58a51d3
https://link.springer.com/chapter/10.1007%2F978-3-030-77886-6_6
https://www.sueddeutsche.de/wirtschaft/handy-gprs-verschluesselung-1.5323228
#backdoor #2g #gprs #encryption
AP NEWS
Security flaw found in 2G mobile data encryption standard
BERLIN (AP) — Cybersecurity researchers in Europe say they have discovered a flaw in an encryption algorithm used by cellphones that may have allowed attackers to eavesdrop on some data traffic for more than two decades.
Bombshell Report Finds Phone Network Encryption Was Deliberately Weakened
Comments
https://news.ycombinator.com/item?id=27686422
via www.vice.com
#backdoor #2g #gprs #encryption
Comments
https://news.ycombinator.com/item?id=27686422
via www.vice.com
#backdoor #2g #gprs #encryption
Telegraph
Bombshell Report Finds Phone Network Encryption Was Deliberately Weakened
Hacking. Disinformation. Surveillance. CYBER is Motherboard's podcast and reporting on the dark underbelly of the internet. See More → A weakness in the algorithm used to encrypt cellphone data in the 1990s and 2000s allowed hackers to spy on some internet…