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A5/2 - Encryption Algorithm

A5/2 A5/2 – Encryption Algorithm A5/2 Algorithm used in the GSM ciphering process between a MS (Mobile Station) and the GSM network. This algorithm is simpler than A5/1 and was developed by ETSI (European Telecommunications Standards Institute) for use in Eastern European states that had restrictions to certain Western technologies.


  • Fully interactive 3GPP based network map
  • Narrated call flows
  • Detailed network procedures

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