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. 2020 Nov 12;20(22):6471. doi: 10.3390/s20226471
Algorithm2: SSO registration.
Input: SIDi, SPWi.
Output: ri, Ai.
  • 1:

    Ui enters  SIDi and SPWi into smart card.

  • 2:

    Smart card generates ri.

  • 3:

    Smart card computes Ai=H(SPWi)H(riSIDi).

  • 4:

    SSO sever stores ri and Ai.