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Reply To: A5/1 to A5/2 ciphering algorithm


Hi everyone,

Im a beginner in what this technology means so I’d like to get a bit more udnerstanding, if you could help me, Id really appreciate it.

1. On 3G technology the A5/3 algorithm is being used. Does that mean that if I have a 2G SIM Card and I switch to a 3G one, Im safe and my phone won’t be hacked ?

2. This algorithm, is it implemented at a SIM card level only or is in part of the MSC, towers, etc ?