Research Article
Risk-Based Dynamic Identity Authentication Method Based on the UCON Model
Table 1
User’s registration process.
| | User (U) | Server (S) | Blockchain (B) |
| Input ID, psw
Choose T
Encrypt the message with k
{T, ID, psw} k
| | | | | Decrypt k
Verify whether T is correct
Get ID, psw
Save H (ID, psw) safely
Calculate (Pu, Pr)
Calculate ID
Sign
Sig (ID) ⟶ Θ | | | | {T, ID, etc.}
Secure channel
| Generate initial right A based on risk
Save (ID, etc., A) | | | Return registration success information
{T, Suc} k
| |
|
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