secp256k1

package module

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Versions in this module

v0

v0.2.7

Dec 11, 2024

Changes in this version

type Signature

+ func ParseCompactSignature(signature []byte) (*Signature, bool, error)

v0.2.6

Oct 27, 2024

v0.2.5

Oct 13, 2024

Changes in this version

type Signature

+ func (sig *Signature) ExportCompact(recoveryCodeFirst bool, recoveryCodeOffset byte) []byte

v0.2.4

Oct 13, 2024

Changes in this version

type Signature

+ func (sig *Signature) Export() (*big.Int, *big.Int, byte)

v0.2.3

Oct 13, 2024

Changes in this version

type Signature

+ func NewSignatureWithRecoveryCode(r, s *ModNScalar, v byte) *Signature

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

+ func (sig *Signature) RecoverPublicKey(hash []byte) (*PublicKey, error)

+ func (sig *Signature) RecoveryCode() byte

v0.2.2

Oct 12, 2024

Changes in this version

type SignOptions

+ Format SignatureFormat

+ type SignatureFormat uint

+ const SignFormatCompact

+ const SignFormatDER

v0.2.1

Oct 12, 2024

Changes in this version

type PrivateKey

+ func (p *PrivateKey) Public() crypto.PublicKey

+ func (privkey *PrivateKey) ECDH(remote *PublicKey) ([]byte, error)

+ func (privkey *PrivateKey) Sign(rand io.Reader, digest []byte, opts crypto.SignerOpts) ([]byte, error)

+ type SignOptions struct

+ Hash crypto.Hash

+ func (s *SignOptions) HashFunc() crypto.Hash

v0.2.0

Oct 12, 2024

Changes in this version

+ const ErrPointNotOnCurve

+ const ErrSigInvalidDataLen

+ const ErrSigInvalidLen

+ const ErrSigInvalidRIntID

+ const ErrSigInvalidRecoveryCode

+ const ErrSigInvalidSIntID

+ const ErrSigInvalidSLen

+ const ErrSigInvalidSeqID

+ const ErrSigMissingSLen

+ const ErrSigMissingSTypeID

+ const ErrSigNegativeR

+ const ErrSigNegativeS

+ const ErrSigOverflowsPrime

+ const ErrSigRIsZero

+ const ErrSigRTooBig

+ const ErrSigSIsZero

+ const ErrSigSTooBig

+ const ErrSigTooLong

+ const ErrSigTooMuchRPadding

+ const ErrSigTooMuchSPadding

+ const ErrSigTooShort

+ const ErrSigZeroRLen

+ const ErrSigZeroSLen

+ func SignCompact(key *PrivateKey, hash []byte, isCompressedKey bool) []byte

type PublicKey

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

+ type Signature struct

+ func NewSignature(r, s *ModNScalar) *Signature

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

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

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

+ func (sig *Signature) R() ModNScalar

+ func (sig *Signature) S() ModNScalar

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

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

v0.1.2

May 28, 2024

v0.1.1

May 28, 2024

v0.1.0

Feb 20, 2024

Changes in this version

+ const ErrPubKeyInvalidFormat

+ const ErrPubKeyInvalidLen

+ const ErrPubKeyMismatchedOddness

+ const ErrPubKeyNotOnCurve

+ const ErrPubKeyXTooBig

+ const ErrPubKeyYTooBig

+ const PrivKeyBytesLen

+ const PubKeyBytesLenCompressed

+ const PubKeyBytesLenUncompressed

+ const PubKeyFormatCompressedEven

+ const PubKeyFormatCompressedOdd

+ const PubKeyFormatHybridEven

+ const PubKeyFormatHybridOdd

+ const PubKeyFormatUncompressed

+ func AddNonConst(p1, p2, result *JacobianPoint)

+ func DecompressY(x *FieldVal, odd bool, resultY *FieldVal) bool

+ func DoubleNonConst(p, result *JacobianPoint)

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

+ func ScalarBaseMultNonConst(k *ModNScalar, result *JacobianPoint)

+ func ScalarMultNonConst(k *ModNScalar, point, result *JacobianPoint)

+ type CurveParams struct

+ BitSize int

+ ByteSize int

+ Gx *big.Int

+ Gy *big.Int

+ H int

+ N *big.Int

+ P *big.Int

+ func Params() *CurveParams

+ type Error struct

+ Description string

+ Err error

+ func (e Error) Error() string

+ func (e Error) Unwrap() error

+ type ErrorKind string

+ func (e ErrorKind) Error() string

+ type FieldVal struct

+ func (f *FieldVal) Add(val *FieldVal) *FieldVal

+ func (f *FieldVal) Add2(val *FieldVal, val2 *FieldVal) *FieldVal

+ func (f *FieldVal) AddInt(ui uint16) *FieldVal

+ func (f *FieldVal) Bytes() *[32]byte

+ func (f *FieldVal) Equals(val *FieldVal) bool

+ func (f *FieldVal) Inverse() *FieldVal

+ func (f *FieldVal) IsGtOrEqPrimeMinusOrder() bool

+ func (f *FieldVal) IsOdd() bool

+ func (f *FieldVal) IsOddBit() uint32

+ func (f *FieldVal) IsOne() bool

+ func (f *FieldVal) IsOneBit() uint32

+ func (f *FieldVal) IsZero() bool

+ func (f *FieldVal) IsZeroBit() uint32

+ func (f *FieldVal) Mul(val *FieldVal) *FieldVal

+ func (f *FieldVal) Mul2(val *FieldVal, val2 *FieldVal) *FieldVal

+ func (f *FieldVal) MulInt(val uint8) *FieldVal

+ func (f *FieldVal) Negate(magnitude uint32) *FieldVal

+ func (f *FieldVal) NegateVal(val *FieldVal, magnitude uint32) *FieldVal

+ func (f *FieldVal) Normalize() *FieldVal

+ func (f *FieldVal) PutBytes(b *[32]byte)

+ func (f *FieldVal) PutBytesUnchecked(b []byte)

+ func (f *FieldVal) Set(val *FieldVal) *FieldVal

+ func (f *FieldVal) SetByteSlice(b []byte) bool

+ func (f *FieldVal) SetBytes(b *[32]byte) uint32

+ func (f *FieldVal) SetInt(ui uint16) *FieldVal

+ func (f *FieldVal) Square() *FieldVal

+ func (f *FieldVal) SquareRootVal(val *FieldVal) bool

+ func (f *FieldVal) SquareVal(val *FieldVal) *FieldVal

+ func (f *FieldVal) Zero()

+ func (f FieldVal) String() string

+ type JacobianPoint struct

+ X FieldVal

+ Y FieldVal

+ Z FieldVal

+ func MakeJacobianPoint(x, y, z *FieldVal) JacobianPoint

+ func (p *JacobianPoint) Set(other *JacobianPoint)

+ func (p *JacobianPoint) ToAffine()

+ type KoblitzCurve struct

+ func S256() *KoblitzCurve

+ func (curve *KoblitzCurve) Add(x1, y1, x2, y2 *big.Int) (*big.Int, *big.Int)

+ func (curve *KoblitzCurve) Double(x1, y1 *big.Int) (*big.Int, *big.Int)

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

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

+ func (curve *KoblitzCurve) ScalarBaseMult(k []byte) (*big.Int, *big.Int)

+ func (curve *KoblitzCurve) ScalarMult(Bx, By *big.Int, k []byte) (*big.Int, *big.Int)

+ type ModNScalar struct

+ func NonceRFC6979(privKey []byte, hash []byte, extra []byte, version []byte, ...) *ModNScalar

+ func (s *ModNScalar) Add(val *ModNScalar) *ModNScalar

+ func (s *ModNScalar) Add2(val1, val2 *ModNScalar) *ModNScalar

+ func (s *ModNScalar) Bytes() [32]byte

+ func (s *ModNScalar) Equals(val *ModNScalar) bool

+ func (s *ModNScalar) InverseNonConst() *ModNScalar

+ func (s *ModNScalar) InverseValNonConst(val *ModNScalar) *ModNScalar

+ func (s *ModNScalar) IsOdd() bool

+ func (s *ModNScalar) IsOverHalfOrder() bool

+ func (s *ModNScalar) IsZero() bool

+ func (s *ModNScalar) IsZeroBit() uint32

+ func (s *ModNScalar) Mul(val *ModNScalar) *ModNScalar

+ func (s *ModNScalar) Mul2(val, val2 *ModNScalar) *ModNScalar

+ func (s *ModNScalar) Negate() *ModNScalar

+ func (s *ModNScalar) NegateVal(val *ModNScalar) *ModNScalar

+ func (s *ModNScalar) PutBytes(b *[32]byte)

+ func (s *ModNScalar) PutBytesUnchecked(b []byte)

+ func (s *ModNScalar) Set(val *ModNScalar) *ModNScalar

+ func (s *ModNScalar) SetByteSlice(b []byte) bool

+ func (s *ModNScalar) SetBytes(b *[32]byte) uint32

+ func (s *ModNScalar) SetInt(ui uint32) *ModNScalar

+ func (s *ModNScalar) Square() *ModNScalar

+ func (s *ModNScalar) SquareVal(val *ModNScalar) *ModNScalar

+ func (s *ModNScalar) Zero()

+ func (s ModNScalar) String() string

+ type PrivateKey struct

+ Key ModNScalar

+ func GeneratePrivateKey() (*PrivateKey, error)

+ func GeneratePrivateKeyFromRand(rand io.Reader) (*PrivateKey, error)

+ func NewPrivateKey(key *ModNScalar) *PrivateKey

+ func PrivKeyFromBytes(privKeyBytes []byte) *PrivateKey

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

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

+ func (p *PrivateKey) Zero()

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

+ type PublicKey struct

+ func NewPublicKey(x, y *FieldVal) *PublicKey

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

+ func (p *PublicKey) AsJacobian(result *JacobianPoint)

+ func (p *PublicKey) IsEqual(otherPubKey *PublicKey) bool

+ func (p *PublicKey) IsOnCurve() bool

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

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

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

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

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

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