kcdsa

package
v1.0.4016 Latest Latest
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 Go to latest Published: Sep 29, 2024 License: Apache-2.0 Imports: 14 Imported by: 0

Documentation

Index

Constants

View Source 
const NumMRTests = 64

Variables

View Source 
var (
	One   = big.NewInt(1)
	Two   = big.NewInt(2)
	Three = big.NewInt(3)
)

Functions

func FermatInverse 

func FermatInverse(k, P *big.Int) *big.Int

func GenerateG 

func GenerateG(
	G *big.Int,
	P, J, H *big.Int,
) (ok bool)

func GenerateHG 

func GenerateHG(
	H, G *big.Int,
	buf []byte,
	rand io.Reader,
	P, J *big.Int,
) (bufOut []byte, err error)

func GenerateJ 

func GenerateJ(
	J *big.Int, buf []byte,
	seed []byte,
	h hash.Hash,
	d ParameterSize,
) (bufNew []byte, ok bool)

func GenerateKey 

func GenerateKey(priv *PrivateKey, rand io.Reader) error

func GenerateKeyWithSeed 

func GenerateKeyWithSeed(priv *PrivateKey, rand io.Reader, xkey, upri []byte, sizes ParameterSizes) (xkeyOut, upriOut []byte, err error)

func GeneratePQ 

func GeneratePQ(
	P, Q *big.Int, buf []byte,
	J *big.Int,
	seed []byte,
	h hash.Hash,
	d ParameterSize,
) (bufNew []byte, count int, ok bool)

func GenerateParameters 

func GenerateParameters(params *Parameters, rand io.Reader, sizes ParameterSizes) (err error)

Generate the parameters without Key Generation Parameters (J, Seed, Count)

func GenerateParametersTTAK 

func GenerateParametersTTAK(params *Parameters, rand io.Reader, sizes ParameterSizes) (err error)

Generate the parameters using Key Generation Parameters (J, Seed, Count)

func GenerateX 

func GenerateX(
	X *big.Int,
	Q *big.Int, upri, xkey []byte, h hash.Hash, d ParameterSize,
)

func GenerateY 

func GenerateY(
	Y *big.Int,
	P, Q, G, X *big.Int,
)

func Grow 

func Grow(buf []byte, bytes int) []byte

without guarantee of data

func LeftMost 

func LeftMost(b []byte, bits int) []byte

[0 0 0 0 0 0]0 0

func MarshalPrivateKey 

func MarshalPrivateKey(key *PrivateKey) ([]byte, error)

PKCS8 包装私钥

func MarshalPublicKey 

func MarshalPublicKey(pub *PublicKey) ([]byte, error)

PKCS8 包装公钥

func ReadBigInt 

func ReadBigInt(dst *big.Int, rand io.Reader, buf []byte, max *big.Int) (bufNew []byte, err error)

ReadBigInt returns a uniform random value in [0, max). It panics if max <= 0.

func ReadBits 

func ReadBits(dst []byte, rand io.Reader, bits int) ([]byte, error)

resize dst, ReadFull, cut from right

func ReadBytes 

func ReadBytes(dst []byte, rand io.Reader, bytes int) ([]byte, error)

resize dst, ReadFull, cut from right

func RegeneratePQ 

func RegeneratePQ(
	ps ParameterSize,
	J *big.Int,
	seed []byte,
	count int,
) (
	P, Q *big.Int,
	ok bool,
)

func RegenerateParameters 

func RegenerateParameters(params *Parameters, rand io.Reader, sizes ParameterSizes) error

TTAKParameters -> P, Q, G(randomly)

func RightMost 

func RightMost(b []byte, bits int) []byte

0 0[0 0 0 0 0 0]

func Sign 

func Sign(rand io.Reader, priv *PrivateKey, h Hasher, data []byte) (r, s *big.Int, err error)

func SignASN1 

func SignASN1(rand io.Reader, priv *PrivateKey, h Hasher, data []byte) (sig []byte, err error)

Sign data returns the ASN.1 encoded signature.

func SignBytes 

func SignBytes(rand io.Reader, priv *PrivateKey, hashFunc Hasher, data []byte) (sig []byte, err error)

Sign data returns the Bytes encoded signature.

func Verify 

func Verify(pub *PublicKey, h Hasher, data []byte, r, s *big.Int) bool

func VerifyASN1 

func VerifyASN1(pub *PublicKey, h Hasher, data []byte, sig []byte) bool

VerifyASN1 verifies the ASN.1 encoded signature, sig, M, of hash using the public key, pub. Its return value records whether the signature is valid.

func VerifyBytes 

func VerifyBytes(pub *PublicKey, hashFunc Hasher, data, sig []byte) bool

Verify verifies the Bytes encoded signature

Types

type GeneratedParameter 

type GeneratedParameter struct {
	P     *big.Int
	Q     *big.Int
	G     *big.Int
	J     *big.Int
	Seed  []byte
	Count int
	H     *big.Int
}

func GenerateParametersFast 

func GenerateParametersFast(rand io.Reader, d ParameterSize) (generated GeneratedParameter, err error)

type GenerationParameters 

type GenerationParameters struct {
	J     *big.Int
	Seed  []byte
	Count int
}

func (*GenerationParameters) Equal 

func (params *GenerationParameters) Equal(xx GenerationParameters) bool

Equal reports whether p, q, g and sizes have the same value.

func (*GenerationParameters) IsValid 

func (params *GenerationParameters) IsValid() bool

type Hasher 

type Hasher = func() hash.Hash

type PKCS8Key 

type PKCS8Key struct{}

*

  • pkcs8 密钥 *
  • @create 2024-8-12
  • @author deatil

func NewPKCS8Key 

func NewPKCS8Key() PKCS8Key

构造函数

func (PKCS8Key) MarshalPrivateKey 

func (this PKCS8Key) MarshalPrivateKey(key *PrivateKey) ([]byte, error)

PKCS8 包装私钥

func (PKCS8Key) MarshalPublicKey 

func (this PKCS8Key) MarshalPublicKey(key *PublicKey) ([]byte, error)

PKCS8 包装公钥

func (PKCS8Key) ParsePrivateKey 

func (this PKCS8Key) ParsePrivateKey(der []byte) (key *PrivateKey, err error)

PKCS8 解析私钥

func (PKCS8Key) ParsePublicKey 

func (this PKCS8Key) ParsePublicKey(der []byte) (*PublicKey, error)

PKCS8 解析公钥

type ParameterSize 

type ParameterSize struct {
	A, B int
	LH   int
	L    int

	NewHash func() hash.Hash
}

func GetSizes 

func GetSizes(sizes ParameterSizes) (ParameterSize, bool)

type ParameterSizes 

type ParameterSizes int
const (
	A2048B224SHA224 ParameterSizes = 1 + iota
	A2048B224SHA256
	A2048B256SHA256
	A3072B256SHA256
	A1024B160HAS160
)

func (ParameterSizes) Hash 

func (ps ParameterSizes) Hash() hash.Hash

type Parameters 

type Parameters struct {
	P, Q, G *big.Int

	GenParameters GenerationParameters
}

func (Parameters) Equal 

func (params Parameters) Equal(xx Parameters) bool

Equal reports whether p, q, g and sizes have the same value.

type PrivateKey 

type PrivateKey struct {
	PublicKey
	X *big.Int
}

PrivateKey represents a KCDSA private key.

func ParsePrivateKey 

func ParsePrivateKey(derBytes []byte) (key *PrivateKey, err error)

PKCS8 解析私钥

func (*PrivateKey) Equal 

func (priv *PrivateKey) Equal(x crypto.PrivateKey) bool

Equal reports whether priv and x have the same value.

func (*PrivateKey) Public 

func (priv *PrivateKey) Public() crypto.PublicKey

Public returns the public key corresponding to priv.

func (*PrivateKey) Sign 

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

crypto.Signer

type PublicKey 

type PublicKey struct {
	Parameters
	Y *big.Int
}

PublicKey represents a KCDSA public key.

func ParsePublicKey 

func ParsePublicKey(derBytes []byte) (*PublicKey, error)

PKCS8 解析公钥

func (*PublicKey) Equal 

func (pub *PublicKey) Equal(x crypto.PublicKey) bool

Equal reports whether pub and y have the same value.

func (*PublicKey) Verify 

func (pub *PublicKey) Verify(hash, sig []byte, opts crypto.SignerOpts) (bool, error)

type SignerOpts 

type SignerOpts struct {
	Hash Hasher
}

SignerOpts contains options for creating and verifying EC-KCDSA signatures.

func (*SignerOpts) GetHash 

func (opts *SignerOpts) GetHash() Hasher

GetHash returns func() hash.Hash

func (*SignerOpts) HashFunc 

func (opts *SignerOpts) HashFunc() crypto.Hash

HashFunc returns crypto.Hash

Source Files

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