A Secure and Fair Joint E-Lottery Protocol

Table 1

The information of bulletin board.

Initial condition
chain0=0
chain1=𝐻(chain0,𝛽1)
chain2=𝐻(chain1,𝛽2)
⋮
chain𝑗=𝐻(chain𝑗−1,𝛽𝑗)
Identity information	Hash chain value	Hash value of the random number 𝑟𝑃𝑗	Selected favorite number
(𝑖1,𝜎𝑖1)	chain1	𝛽1	number1
(𝑖2,𝜎𝑖2)	chain2	𝛽2	number2
⋮	⋮	⋮	⋮
(𝑖𝑗,𝜎𝑖𝑗)	chain𝑗	𝛽𝑗	number𝑗