simplify api even more, make it also more robust

1 files changed, 4 insertions, 7 deletions

diff --git a/nizk/commit.go b/nizk/commit.go
index 5634b16..ecb1568 100644
--- a/nizk/commit.go
+++ b/nizk/commit.go
@@ -38,18 +38,19 @@ type Proof struct {
 	}
 }
 
-func NewBit(id Bytes, set bool) *Bit {
+func NewBit(id Bytes, set bool) (*Bit, *Commitment, *Proof) {
 	α, β := Curve.RandomScalar(), Curve.RandomScalar()
 	return NewBitFromScalars(id, set, α, β)
 }
 
-func NewBitFromScalars(id Bytes, set bool, α, β *Scalar) *Bit {
-	return &Bit{
+func NewBitFromScalars(id Bytes, set bool, α, β *Scalar) (*Bit, *Commitment, *Proof) {
+	b := &Bit{
 		id:  id,
 		set: set,
 		α:   α,
 		β:   β,
 	}
+	return b, b.commit(), b.proof()
 }
 
 func (b *Bit) IsSet() bool {
@@ -122,10 +123,6 @@ func (s *Bit) proof() *Proof {
 	return pr
 }
 
-func (s *Bit) Commit() (*Commitment, *Proof) {
-	return s.commit(), s.proof()
-}
-
 func (c *Commitment) Verify(id Bytes, p *Proof) bool {
 	var e [2][2]*Point