Generalized Proxy Oblivious Signature and Its Mobile Application

Table 4

System feature comparison.

Scheme	[A]	[B]	[C]	[D]	[E]	[F]
Zhao [32]		✓	✓	✓
Kushilevitz [33]	✓	✓	✓
Blundo [34]	✓	✓	✓	✓
Proposed	✓	✓	✓	✓	✓	✓

[A]: no need for a trusted third party (TTP); [B]: owner may not repudiate a legitimate lottery card; [C]: the privacy of the player’s selection content is protected; [D]:the player is anonymous; [E]: fairness for all players; [F]: multiple choices with multiple prizes.