tcecdsa

package module

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Versions in this module

v0

v0.0.7

Jan 22, 2020

v0.0.6

Jan 22, 2020

Changes in this version

+ type Signature struct

+ R *big.Int

+ S *big.Int

v0.0.5

Jan 21, 2020

Changes in this version

type KeyGenZKProof

+ E *big.Int

+ S1 *big.Int

+ S2 *big.Int

+ S3 *big.Int

+ U1 *Point

+ U2 *big.Int

+ U3 *big.Int

+ Z *big.Int

type SigZKProof

+ E *big.Int

+ S1 *big.Int

+ S3 *big.Int

+ S4 *big.Int

+ S5 *big.Int

+ S6 *big.Int

+ S7 *big.Int

+ T1 *big.Int

+ T2 *big.Int

+ T3 *big.Int

+ U1 *Point

+ U2 *big.Int

+ U3 *big.Int

+ U4 *big.Int

+ V1 *big.Int

+ V2 *big.Int

+ V3 *big.Int

+ Z1 *big.Int

+ Z2 *big.Int

+ Z3 *big.Int

type SigZKProofParams

+ EncUi *l2fhe.EncryptedL1

+ EncVi *l2fhe.EncryptedL1

+ EncWi *l2fhe.EncryptedL1

+ Eta1 *big.Int

+ Eta2 *big.Int

+ Eta3 *big.Int

+ RandUi *big.Int

+ RandVi *big.Int

+ RandWi *big.Int

+ Ri *Point

v0.0.4

Jan 21, 2020

Changes in this version

+ var CurveNameToCurve = map[string]elliptic.Curve

type KeyMeta

+ CurveName string

v0.0.3

Jan 17, 2020

Changes in this version

+ func MarshalSignature(r, s *big.Int) ([]byte, error)

+ func UnmarshalSignature(sigByte []byte) (r, s *big.Int, err error)

v0.0.2

Jan 16, 2020

Changes in this version

+ func HashToInt(hash []byte, c elliptic.Curve) *big.Int

+ func NewKey(l, k uint8, curve elliptic.Curve, randomSource io.Reader, params *NewKeyParams) (keyShares []*KeyShare, keyMeta *KeyMeta, err error)

+ func RandomFieldElement(c elliptic.Curve, rand io.Reader) (k *big.Int, err error)

+ func RandomInRange(min, max *big.Int, randSource io.Reader) (r *big.Int, err error)

+ type KeyGenZKProof struct

+ func (p *KeyGenZKProof) Verify(meta *KeyMeta, vals ...interface{}) error

+ type KeyInitMessage struct

+ AlphaI *l2fhe.EncryptedL1

+ Proof *KeyGenZKProof

+ Yi *Point

+ type KeyInitMessageList []*KeyInitMessage

+ func (msgs KeyInitMessageList) Join(meta *KeyMeta) (alpha *l2fhe.EncryptedL1, y *Point, err error)

+ type KeyMeta struct

+ Curve elliptic.Curve

+ func (meta *KeyMeta) G() *Point

+ func (meta *KeyMeta) GetPublicKey(msgs KeyInitMessageList) (pk *ecdsa.PublicKey, err error)

+ func (meta *KeyMeta) Q() *big.Int

+ func (meta *KeyMeta) RandomSource() io.Reader

+ type KeyShare struct

+ Alpha *l2fhe.EncryptedL1

+ Index uint8

+ PaillierShare *tcpaillier.KeyShare

+ Y *Point

+ func (p *KeyShare) Init(meta *KeyMeta) (msg *KeyInitMessage, err error)

+ func (p *KeyShare) NewSigSession(meta *KeyMeta, h []byte) (state *SigSession, err error)

+ func (p *KeyShare) SetKey(meta *KeyMeta, msgs KeyInitMessageList) error

+ type NewKeyParams struct

+ PaillierFixed *tcpaillier.FixedParams

+ type Point struct

+ X *big.Int

+ Y *big.Int

+ func NewPoint(x, y *big.Int) *Point

+ func NewZero() *Point

+ func (p *Point) Add(curve elliptic.Curve, pList ...*Point) *Point

+ func (p *Point) BaseMul(curve elliptic.Curve, k *big.Int) *Point

+ func (p *Point) Bytes(curve elliptic.Curve) []byte

+ func (p *Point) Clone() *Point

+ func (p *Point) Cmp(p2 *Point) int

+ func (p *Point) Mul(curve elliptic.Curve, p1 *Point, k *big.Int) *Point

+ func (p *Point) Neg(p2 *Point) *Point

+ func (p *Point) SetBytes(curve elliptic.Curve, b []byte) (p2 *Point, err error)

+ func (p *Point) String() string

+ type Round1Message struct

+ Proof *SigZKProof

+ Ri *Point

+ Ui *l2fhe.EncryptedL1

+ Vi *l2fhe.EncryptedL1

+ Wi *l2fhe.EncryptedL1

+ type Round1MessageList []*Round1Message

+ func (msgs Round1MessageList) Join(meta *KeyMeta) (R *Point, u, v, w *l2fhe.EncryptedL1, err error)

+ type Round2Message struct

+ PDZ *l2fhe.DecryptedShareL2

+ Proof tcpaillier.ZKProof

+ type Round2MessageList []*Round2Message

+ func (msgs Round2MessageList) Join(meta *KeyMeta, z *l2fhe.EncryptedL2) (nu *big.Int, err error)

+ type Round3Message struct

+ PDSigma *l2fhe.DecryptedShareL2

+ Proof tcpaillier.ZKProof

+ type Round3MessageList []*Round3Message

+ func (msgs Round3MessageList) Join(meta *KeyMeta, sigma *l2fhe.EncryptedL2) (s *big.Int, err error)

+ type SigSession struct

+ func (state *SigSession) GetSignature(msgs Round3MessageList) (r, s *big.Int, err error)

+ func (state *SigSession) Round1() (msg *Round1Message, err error)

+ func (state *SigSession) Round2(msgs Round1MessageList) (msg *Round2Message, err error)

+ func (state *SigSession) Round3(msgs Round2MessageList) (msg *Round3Message, err error)

+ type SigZKProof struct

+ func NewSigZKProof(meta *KeyMeta, p *SigZKProofParams) (proof *SigZKProof, err error)

+ func (p *SigZKProof) Verify(meta *KeyMeta, vals ...interface{}) error

+ type SigZKProofParams struct

+ type Status uint8

+ const Finished

+ const NotInited

+ const Round1

+ const Round2

+ const Round3

+ const Undefined

+ type ZKProof interface

+ Verify func(meta *KeyMeta, args ...interface{}) error

+ type ZKProofMeta struct

+ H1 *big.Int

+ H2 *big.Int

+ NTilde *big.Int

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