Research Article
Risk-Based Dynamic Identity Authentication Method Based on the UCON Model
| | User (U) | Server (S) | Blockchain (B) |
| Input ID, psw′
Choose T
Encrypted message with k
{T, ID, psw′} k
| | | | | Decrypt k
Verify whether T is correct
Calculate H (ID, psw)? = H (ID, psw′)
No, return a wrong message
{T, Fal} k
{T, Req}
Secure channel | | | | | Return access right
{T, ID, A}
Secure channel | | | Verify ID consistency (ID, ID, Θ)? = 1
Yes
Verify whether A is accessible
Yes
{T, Suc} k
No
{T, Fal} k
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