bls

package

v1.1.4 Latest Latest Go to latest Published: Jun 19, 2020 License: MIT Imports: 5 Imported by: 0

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Valid go.mod file
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Repository

github.com/dosnetwork/core

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Documentation ¶

Overview ¶

Package bls implements the Boneh-Lynn-Shacham (BLS) signature scheme which was introduced in the paper "Short Signatures from the Weil Pairing". BLS requires pairing-based cryptography.

Index ¶

func NewKeyPair(suite suites.Suite, random cipher.Stream) (kyber.Scalar, kyber.Point)
func Sign(suite suites.Suite, x kyber.Scalar, msg []byte) ([]byte, error)
func Verify(suite suites.Suite, X kyber.Point, msg, sig []byte) error

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func NewKeyPair ¶

func NewKeyPair(suite suites.Suite, random cipher.Stream) (kyber.Scalar, kyber.Point)

NewKeyPair creates a new BLS signing key pair. The private key x is a scalar and the public key X is a point on curve G2.

func Sign ¶

func Sign(suite suites.Suite, x kyber.Scalar, msg []byte) ([]byte, error)

Sign creates a BLS signature S = x * H(m) on a message m using the private key x. The signature S is a point on curve G1.

func Verify ¶

func Verify(suite suites.Suite, X kyber.Point, msg, sig []byte) error

Verify checks the given BLS signature S on the message m using the public key X by verifying that the equality e(H(m), X) == e(H(m), x*B2) == e(x*H(m), B2) == e(S, B2) holds where e is the pairing operation and B2 is the base point from curve G2.

Types ¶

This section is empty.

Source Files ¶

View all Source files

bls.go

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