Table 2 Proof of the non-repudiation offered by the proposed scheme
Evidence | Evidence issuer | Evidence holder | Verification equation |
|---|---|---|---|
\(Sig_{P1} = S_{{PRK_{P} }} (R_{P1} ||ID_{P} ||R_{P2} ||B_{P} ||PK||T_{P1} )\) | Patient | Doctor | \((R_{P1} ||ID_{P} ||R_{P2} ||B_{P} ||PK||T_{P1} )\mathop = \limits^{?} V_{{PUK_{P} }} (Sig_{P1} )\) |
\(Sig_{D1} = S_{{PRK_{D} }} (R_{D2} ||ID_{D} ||T_{D1} ||Cert_{D} ||SEK_{1} ||PK)\) | Doctor | Patient | \((R_{D2} ||ID_{D} ||T_{D1} ||Cert_{D} ||SEK_{1} ||PK)\mathop = \limits^{?} V_{{PUK_{P} }} (Sig_{D1} )\) |
\(Sig_{D2} = S_{{PRK_{D} }} (S_{D} ||T_{D2} ||ID_{P} ||ID_{DE} ||ID_{D} )\) | Doctor | Public cloud | \((S_{D} ||T_{D2} ||ID_{P} ||ID_{DE} ||ID_{D} )\mathop = \limits^{?} V_{{PUK_{D} }} (Sig_{D2} )\) |
\(Sig_{C} = S_{{PRK_{C} }} (ID_{DE} ||S_{SD} ||ID_{HPC} ||T_{C} )\) | Public cloud | Doctor | \((ID_{DE} ||S_{SD} ||ID_{HPC} ||T_{C} )\mathop = \limits^{?} V_{{PUK_{C} }} (Sig_{C} )\) |
\(Sig_{D3} = S_{{PRK_{D} }} (PK||T_{D3} ||ID_{P} ||R_{D3} ||R_{D1} )\) | Doctor | Hospital’s private cloud | \((PK||T_{D3} ||ID_{P} ||R_{D3} ||R_{D1} )\mathop = \limits^{?} V_{{PUK_{D} }} (Sig_{D3} )\) |
\(Sig_{HPC1} = S_{{PRK_{HPC} }} (PK||T_{HPC1} ||ID_{HPC} )\) | Hospital’s private cloud | Doctor | \((PK||T_{HPC1} ||ID_{HPC} )\mathop = \limits^{?} S_{{PRK_{HPC} }} (Sig_{HPC1} )\) |