Research Article

Strongly Unforgeable Ring Signature Scheme from Lattices in the Standard Model

Table 1

Comparison of ring signature schemes.

EU SU ROM/STM

[19]×× STM
[20]×× ROM
[21]××ROM/STM
[22]×ROM

Ours STM

EU means the ring signature scheme is existentially unforgeable with respect to insider corruption, SU means the ring signature scheme is strongly unforgeable with respect to insider corruption, ROM means the ring signature scheme is secure in the random oracle model, and STM means the ring signature scheme is secure in the standard model.