Guidance for Improving LTE-Based Mobile Communications Security
The link below is for all of the ITL Bulletins (including this month's Bulletin) previously released on CSRC website:
Information about mobile telecommunications security in LTE, UMTS, GSM technology.
Guidance for Improving LTE-Based Mobile Communications Security
The link below is for all of the ITL Bulletins (including this month's Bulletin) previously released on CSRC website:
Security Architecture and Procedures for 5G System (Release 15)
UE-assisted network-based detection of false base station
"The reductive answer to why TLS 1.3 hasn’t been deployed yet is middleboxes: network appliances designed to monitor and sometimes intercept HTTPS traffic inside corporate environments and mobile networks."
P.S. However, simply blaming network appliance vendors would be disingenuous.
Why TLS 1.3 isn't in browsers yet - link