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// Implements the data structures and methods for
// creating a commitment for the SEAL protocol
package commitment
import (
"fmt"
"kesim.org/seal/curve"
)
type Scalar = curve.Curve25519Scalar
type Point = curve.Curve25519Point
var Curve = curve.Curve25519
type Bidder struct {
private struct {
id *Scalar
}
Id *Point
}
type Bid struct {
Bidder *Point
zbid uint64 // bigendian encoding of the bid
n uint8 // number of bits encoded in zbid.
bits []Bit // derived from zbid
}
type Bit struct {
set bool
a *Scalar
b *Scalar
com *BitCommitment
}
type BitCommitment struct {
Gab *Point
A *Point
B *Point
Proofs struct {
A *Proof
B *Proof
}
}
type Proof struct {
V *Point `json:"V"`
R *Scalar `json:"r"`
}
func NewBid(price uint64, bitlength uint8) (*Bidder, error) {
if bitlength > 63 {
return nil, fmt.Errorf("bitlength too large, maximum is 63")
}
return nil, fmt.Errorf("NewBid not implemented")
}
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