edwards25519

package module

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Versions in this module

v1

v1.1.5

Mar 5, 2025

Changes in this version

type ProjectiveGroupElement

+ func (p *ProjectiveGroupElement) ToExtended(r *ExtendedGroupElement)

v1.1.4

Mar 5, 2025

Changes in this version

type CachedGroupElement

+ YminusX FieldElement

+ YplusX FieldElement

type PreComputedGroupElement

+ YminusX FieldElement

+ YplusX FieldElement

v1.1.3

Mar 5, 2025

Changes in this version

type PreComputedGroupElement

+ XY2D FieldElement

+ YMinusX FieldElement

+ YPlusX FieldElement

v1.1.2

Mar 3, 2025

Changes in this version

+ func FeDivPowM1(r, u, v *FieldElement)

v1.1.1

Mar 3, 2025

Changes in this version

+ func ScReduce32(out, s *[32]byte)

v1.1.0

Mar 3, 2025

v1.0.1

Nov 26, 2024

v1.0.0

May 11, 2024

Changes in this version

+ const PrivKeyBytesLen

+ const PrivScalarSize

+ const PrivateKeySize

+ const PubKeyBytesLen

+ const PublicKeySize

+ const SignatureSize

+ var A = FieldElement

+ var ErrInvalidMAC = errors.New("invalid mac hash")

+ var Sha512VersionStringRFC6979 = []byte("Edwards+SHA512 ")

+ var SqrtM1 = FieldElement

+ func Decrypt(priv *PrivateKey, in []byte) ([]byte, error)

+ func Encrypt(pubkey *PublicKey, in []byte) ([]byte, error)

+ func FeAdd(dst, a, b *FieldElement)

+ func FeCMove(f, g *FieldElement, b int32)

+ func FeCombine(h *FieldElement, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64)

+ func FeCopy(dst, src *FieldElement)

+ func FeFromBytes(dst *FieldElement, src *[32]byte)

+ func FeInvert(out, z *FieldElement)

+ func FeIsNegative(f *FieldElement) byte

+ func FeIsNonZero(f *FieldElement) int32

+ func FeMul(h, f, g *FieldElement)

+ func FeNeg(h, f *FieldElement)

+ func FeOne(fe *FieldElement)

+ func FeSquare(h, f *FieldElement)

+ func FeSquare2(h, f *FieldElement)

+ func FeSub(dst, a, b *FieldElement)

+ func FeToBytes(s *[32]byte, h *FieldElement)

+ func FeZero(fe *FieldElement)

+ func GeAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement)

+ func GeDoubleScalarMultVartime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte)

+ func GeScalarMultBase(h *ExtendedGroupElement, a *[32]byte)

+ func GenerateKey(rand io.Reader) (publicKey *[PublicKeySize]byte, privateKey *[PrivateKeySize]byte, err error)

+ func GenerateKeyXY(rand io.Reader) (priv []byte, x, y *big.Int, err error)

+ func GenerateSharedSecret(privkey *PrivateKey, pubkey *PublicKey) []byte

+ func NonceRFC6979(privkey *big.Int, hash []byte, extra []byte, version []byte) *big.Int

+ func PreComputedGroupElementCMove(t, u *PreComputedGroupElement, b int32)

+ func PrivKeyFromBytes(pkBytes []byte) (*PrivateKey, *PublicKey)

+ func PrivKeyFromScalar(p []byte) (*PrivateKey, *PublicKey, error)

+ func PrivKeyFromSecret(s []byte) (*PrivateKey, *PublicKey)

+ func ScMulAdd(s, a, b, c *[32]byte)

+ func ScReduce(out *[32]byte, s *[64]byte)

+ func Sign(privateKey *[PrivateKeySize]byte, message []byte) *[SignatureSize]byte

+ func SignFromScalar(priv *PrivateKey, nonce []byte, hash []byte) (r, s *big.Int, err error)

+ func SignFromSecret(rand io.Reader, priv *PrivateKey, hash []byte) (r, s *big.Int, err error)

+ func SignFromSecretNoReader(priv *PrivateKey, hash []byte) (r, s *big.Int, err error)

+ func SignRS(priv *PrivateKey, hash []byte) (r, s *big.Int, err error)

+ func SignThreshold(priv *PrivateKey, groupPub *PublicKey, hash []byte, privNonce *PrivateKey, ...) (r, s *big.Int, err error)

+ func Verify(publicKey *[PublicKeySize]byte, message []byte, sig *[SignatureSize]byte) bool

+ func VerifyRS(pub *PublicKey, hash []byte, r, s *big.Int) bool

+ type CachedGroupElement struct

+ T2d FieldElement

+ Z FieldElement

+ type CompletedGroupElement struct

+ T FieldElement

+ X FieldElement

+ Y FieldElement

+ Z FieldElement

+ func (p *CompletedGroupElement) ToExtended(r *ExtendedGroupElement)

+ func (p *CompletedGroupElement) ToProjective(r *ProjectiveGroupElement)

+ type ExtendedGroupElement struct

+ T FieldElement

+ X FieldElement

+ Y FieldElement

+ Z FieldElement

+ func (p *ExtendedGroupElement) Double(r *CompletedGroupElement)

+ func (p *ExtendedGroupElement) FromBytes(s *[32]byte) bool

+ func (p *ExtendedGroupElement) ToBytes(s *[32]byte)

+ func (p *ExtendedGroupElement) ToCached(r *CachedGroupElement)

+ func (p *ExtendedGroupElement) ToProjective(r *ProjectiveGroupElement)

+ func (p *ExtendedGroupElement) Zero()

+ type FieldElement [10]int32

+ type PreComputedGroupElement struct

+ func (p *PreComputedGroupElement) Zero()

+ type PrivateKey struct

+ func GeneratePrivateKey() (*PrivateKey, error)

+ func NewPrivateKey(d *big.Int) *PrivateKey

+ func (p *PrivateKey) PubKey() *PublicKey

+ func (p PrivateKey) GetD() *big.Int

+ func (p PrivateKey) GetType() int

+ func (p PrivateKey) Public() (*big.Int, *big.Int)

+ func (p PrivateKey) Serialize() []byte

+ func (p PrivateKey) SerializeSecret() []byte

+ func (p PrivateKey) Sign(hash []byte) (*Signature, error)

+ func (p PrivateKey) ToECDSA() *ecdsa.PrivateKey

+ type ProjectiveGroupElement struct

+ X FieldElement

+ Y FieldElement

+ Z FieldElement

+ func (p *ProjectiveGroupElement) Double(r *CompletedGroupElement)

+ func (p *ProjectiveGroupElement) ToBytes(s *[32]byte)

+ func (p *ProjectiveGroupElement) Zero()

+ type PublicKey ecdsa.PublicKey

+ func NewPublicKey(x *big.Int, y *big.Int) *PublicKey

+ func ParsePubKey(pubKeyStr []byte) (key *PublicKey, err error)

+ func RecoverCompact(signature, hash []byte) (*PublicKey, bool, error)

+ func (p PublicKey) GetCurve() interface{}

+ func (p PublicKey) GetType() int

+ func (p PublicKey) GetX() *big.Int

+ func (p PublicKey) GetY() *big.Int

+ func (p PublicKey) Serialize() []byte

+ func (p PublicKey) SerializeCompressed() []byte

+ func (p PublicKey) SerializeUncompressed() []byte

+ func (p PublicKey) ToECDSA() *ecdsa.PublicKey

+ type Signature struct

+ R *big.Int

+ S *big.Int

+ func NewSignature(r, s *big.Int) *Signature

+ func ParseDERSignature(sigStr []byte) (*Signature, error)

+ func ParseSignature(sigStr []byte) (*Signature, error)

+ func (sig *Signature) IsEqual(otherSig *Signature) bool

+ func (sig *Signature) Verify(hash []byte, pubKey *PublicKey) bool

+ func (sig Signature) GetR() *big.Int

+ func (sig Signature) GetS() *big.Int

+ func (sig Signature) GetType() int

+ func (sig Signature) Serialize() []byte

+ type TwistedEdwardsCurve struct

+ A *big.Int

+ D *big.Int

+ H int

+ I *big.Int

+ func Edwards() *TwistedEdwardsCurve

+ func (curve *TwistedEdwardsCurve) Add(x1, y1, x2, y2 *big.Int) (x, y *big.Int)

+ func (curve *TwistedEdwardsCurve) Double(x1, y1 *big.Int) (x, y *big.Int)

+ func (curve *TwistedEdwardsCurve) IsOnCurve(x *big.Int, y *big.Int) bool

+ func (curve *TwistedEdwardsCurve) ScalarBaseMult(k []byte) (x, y *big.Int)

+ func (curve *TwistedEdwardsCurve) ScalarMult(x1, y1 *big.Int, k []byte) (x, y *big.Int)

+ func (curve TwistedEdwardsCurve) Params() *elliptic.CurveParams

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