kcdsa

package
v1.0.3030 Latest Latest
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 Go to latest Published: Sep 1, 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 added in v1.0.3030 

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 added in v1.0.3030 

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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