The concept of partially blind signatures was first introduced by Abe and Fujisaki. Subsequently, in work by Abe and Okamoto,
a provably secure construction was proposed along with a formalised definition for partially blind schemes. The construction
was based on a witness indistinguishable protocol described by Cramer et al. and utilises a blind Schnorr signature scheme.
This paper investigates incorporating the restrictive property proposed by Brands into a partially blind signature scheme.
The proposed scheme follows the construction proposed by Abe and Okamoto and makes use of Brands’ restrictive blind signature
scheme.