Episode 11: voice decryption basics. How A5/1-encrypted GSM voice traffic is structured on the traffic channel and what’s needed to move from decoded bursts to intelligible audio.
Read MoreEpisode 12: setting up ESXi as the hypervisor for the GSM lab. Preparing a Linux VM to host the Kraken rainbow-table cracker and other heavier tools.
Read MoreEpisode 13: installing and configuring the Linux server that will host Kraken. Storage layout, network setup, and preparing the environment for the A5/1 rainbow tables.
Read MoreEpisode 14: obtaining the A5/1 rainbow tables used by Kraken to break the GSM stream cipher. Where they come from, storage size, and how they map ciphertext bits to key candidates.
Read MoreFinal episode: end-to-end SMS cracking. Feeding captured GSM bursts into Kraken, recovering the A5/1 session key from the rainbow tables, and decrypting the target SMS in plaintext.
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