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Eircell - A PKI Case Study

Eircell - A PKI Case Study. Robbie Ingle Business & Technical Architecture Manager Eircell. Agenda. Eircell’s Goal Mobile Banking Visa Cash WAP-based Banking WAP-based Shopping Conclusions. The Trusted Personal Device. Trusted:

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Eircell - A PKI Case Study

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  1. Eircell - A PKI Case Study Robbie Ingle Business & Technical Architecture Manager Eircell

  2. Agenda • Eircell’s Goal • Mobile Banking • Visa Cash • WAP-based Banking • WAP-based Shopping • Conclusions

  3. The Trusted Personal Device • Trusted: • Privacy, Authentication,Integrity, Non- repudiation • Personal: • Key to a set of personalised services • Small, lightweight, fashionable • Device: • Not necessarily a phone

  4. Security Modes • Mode 1 • Customer doesn’t know or trust Merchant • Merchant doesn’t know or trust Customer • Mode 2 • Customer knows and trusts Merchant • Merchant doesn’t know or trust Customer • Mode 3 • Customer knows and trusts Merchant • Merchant knows and trusts Customer

  5. Mobile Banking • AIB Bank • Simple Application - no Merchants • Users check Balances on Mobile Phone • SMS used as transport • SIM ToolKit (STK) based • Very popular: • Many phones supported • Easy to use

  6. Mobile Banking • Symmetric system • End-to-end security • Security Mode 3 • Inflexible • Amendments require new SIM card

  7. VISA Cash • Eircom Information Age Town - Ennis • World’s first mobile cash download • Three security levels: • 0 Purse (Visa Cash card) to Host • Triple DES • 1 Phone to Commerce Bridge • WTLS; ECC 113; 56 Bit DES for data; SHA-1 for MAC • 2 Phone to server; server to host • Diffe Hellman session key • Single DES and H/W DES for PIN privacy

  8. VISA Cash • Security Mode 3 • Approved by Visa • Special purpose hardware • Commerce Bridge • Card Reader for Nokia 7110 • No commercial application

  9. WAP-based Banking • Ulster Bank • Launched at Comms 2000 (April) • Enquiry facilities at present • Based on their Anytime Internet service • Registration model • Security Mode 3 • Transactions will require WTLS

  10. WAP-based Shopping • Extension of Eircell’s Eirshop • Launched at Easter • Registration Process • Products: • Chocolates • Books • Ready To Go phones • Records • Security Mode 3

  11. Conclusions • Eircell has been very progressive • Built on defined customer constituencies • Security processes to date have been proprietary • Lack of flexibility has hampered commercial proposition • PKI with ubiquity and convenience of mobile phone will be winning combination

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