Abstract:
In mobile networks, 3G and 4G authentication vectors are completely separate and should not be convertible to each other. P1 Security however discovered that some MNOs distribute over roaming interconnects, for certain... Read More →
In the course of developing new tools for scanning, fuzzing and monitoring 5G signaling interfaces, P1 Security has been more and more using Open5GS internally. This...
Read More →P1 Security is working with mobile operators worldwide, and therefore requires a good knowledge of identifiers used in mobile networks. The P1 Lab has worked carefully to identify all public information related to this topic, and is publishing a new
The 3GPP has defined a nice subscriber’s identity protection scheme for 5G networks. This is a way for 5G handsets and terminals (or UE, in the 3GPP terminology) to encrypt the subscriber’s identity before sending it over-the-air. In this way, 5G radio sniffers, 5G...
Read More →With the introduction of 5G networks, a complete rework of the cellular core network is ongoing, in addition to the introduction of the New Radio stack (abbreviated NR). New network functions are defined, such as AMF for handling the mobility of subscribers, SMF for...
Read More →In this post, we explain how the TCAP-MAP protocol has been defined and extended in its successive versions, which led to some backward incompatibilities in the message decoding process. This is where
Copyright 2020 P1 Security, a P1 Group Company. All Rights Reserved. 