pedersen

Documentation

Index

• func GenerateCommitment(params *Params, m *Message) (*Commitment, *Decommitment, error)
• func VerifyCommitment(params *Params, commitment *Commitment, m *Message, r *Decommitment) (bool, error)
• type Commitment
  • func GenerateCommitmentFixedR(params *Params, m *Message, r *Decommitment) (*Commitment, error)
• type Decommitment
• type Message
• type Params
  • func GenerateParams() *Params

Functions

func GenerateCommitment

func GenerateCommitment(params *Params, m *Message) (*Commitment, *Decommitment, error)

GenerateCommitment creates a commitment for some value m

func VerifyCommitment

func VerifyCommitment(params *Params, commitment *Commitment, m *Message, r *Decommitment) (bool, error)

VerifyCommitment checks if a commitment was for some message m under the decommitment r

Types

type Commitment

type Commitment = curve25519.PointXY

Commitment consists of elliptic curve point that serves as a commitment to a message

func GenerateCommitmentFixedR

func GenerateCommitmentFixedR(params *Params, m *Message, r *Decommitment) (*Commitment, error)

GenerateCommitmentFixedR creates a commitment for some value m with a fixed decommitment r

type Decommitment

type Decommitment = curve25519.Scalar

Decommitment is the random value r used in a Pedersen commitment

type Message

type Message = curve25519.Scalar

Message is the value the committer is committing to

type Params

type Params struct {
}

Params consists of two group elements g and h such that the commitment is of the form g^m * h^r

func GenerateParams

func GenerateParams() *Params

GenerateParams now does nothing In the past, it generated the two basis G and H