crypto

Documentation

Index

• func AggregateVerify(sig *Signature, publics []*Key, signers []int, message []byte) error
• func BatchVerify(msg []byte, keys []*Key, sigs []*Signature) bool
• func HashScalar(k *edwards25519.Point, outputIndex uint64) *edwards25519.Scalar
• func KeyMultPubPriv(pub, priv *Key) *edwards25519.Point
• type BatchVerifier
  • func NewBatchVerifier() BatchVerifier
  • func (v *BatchVerifier) Add(publicKey *Key, message, sig []byte)
  • func (v *BatchVerifier) Verify() bool
• type CosiSignature
  • func CosiAggregateCommitment(randoms map[int]*Key) (*CosiSignature, error)
  • func (c *CosiSignature) AggregateResponse(publics []*Key, responses map[int]*[32]byte, message []byte, strict bool) error
  • func (c *CosiSignature) Challenge(publics []*Key, message []byte) (*edwards25519.Scalar, error)
  • func (c *CosiSignature) FullVerify(publics []*Key, threshold int, message []byte) error
  • func (c *CosiSignature) Keys() []int
  • func (c CosiSignature) MarshalJSON() ([]byte, error)
  • func (c *CosiSignature) Response(privateKey, random *Key, publics []*Key, message []byte) (*[32]byte, error)
  • func (c CosiSignature) String() string
  • func (c *CosiSignature) ThresholdVerify(threshold int) bool
  • func (c *CosiSignature) UnmarshalJSON(b []byte) error
  • func (c *CosiSignature) VerifyResponse(publics []*Key, signer int, s *[32]byte, message []byte) error
• type Hash
  • func HashFromString(src string) (Hash, error)
  • func NewHash(data []byte) Hash
  • func (h Hash) ForNetwork(net Hash) Hash
  • func (h Hash) HasValue() bool
  • func (h Hash) MarshalJSON() ([]byte, error)
  • func (h Hash) String() string
  • func (h *Hash) UnmarshalJSON(b []byte) error
• type Key
  • func CosiCommit(randReader io.Reader) *Key
  • func DeriveGhostPrivateKey(R, a, b *Key, outputIndex uint64) *Key
  • func DeriveGhostPublicKey(r, A, B *Key, outputIndex uint64) *Key
  • func KeyFromString(s string) (Key, error)
  • func NewKeyFromSeed(seed []byte) Key
  • func ViewGhostOutputKey(P, a, R *Key, outputIndex uint64) *Key
  • func (k Key) CheckKey() bool
  • func (k Key) DeterministicHashDerive() Key
  • func (k Key) HasValue() bool
  • func (k Key) MarshalJSON() ([]byte, error)
  • func (k Key) Public() Key
  • func (privateKey *Key) Sign(message []byte) Signature
  • func (k Key) String() string
  • func (k *Key) UnmarshalJSON(b []byte) error
  • func (publicKey *Key) Verify(message []byte, sig Signature) bool
  • func (publicKey *Key) VerifyWithChallenge(message []byte, sig Signature, a *edwards25519.Scalar) bool
• type Signature
  • func (s Signature) MarshalJSON() ([]byte, error)
  • func (s *Signature) R() []byte
  • func (s *Signature) S() []byte
  • func (s Signature) String() string
  • func (s *Signature) UnmarshalJSON(b []byte) error

Functions

func AggregateVerify

func AggregateVerify(sig *Signature, publics []*Key, signers []int, message []byte) error

func BatchVerify

func BatchVerify(msg []byte, keys []*Key, sigs []*Signature) bool

func HashScalar

func HashScalar(k *edwards25519.Point, outputIndex uint64) *edwards25519.Scalar

func KeyMultPubPriv

func KeyMultPubPriv(pub, priv *Key) *edwards25519.Point

Types

type BatchVerifier

type BatchVerifier struct {
	// contains filtered or unexported fields
}

BatchVerifier accumulates batch entries with Add, before performing batch verification with Verify.

func NewBatchVerifier

func NewBatchVerifier() BatchVerifier

NewBatchVerifier creates an empty BatchVerifier.

func (*BatchVerifier) Add

func (v *BatchVerifier) Add(publicKey *Key, message, sig []byte)

Add adds a (public key, message, sig) triple to the current batch.

func (*BatchVerifier) Verify

func (v *BatchVerifier) Verify() bool

Verify checks all entries in the current batch, returning true if all entries are valid and false if any one entry is invalid.

If a failure arises it is unknown which entry failed, the caller must verify each entry individually.

Calling Verify on an empty batch returns false.

type CosiSignature

type CosiSignature struct {
	Signature Signature
	Mask      uint64
	// contains filtered or unexported fields
}

func CosiAggregateCommitment

func CosiAggregateCommitment(randoms map[int]*Key) (*CosiSignature, error)

func (*CosiSignature) AggregateResponse

func (c *CosiSignature) AggregateResponse(publics []*Key, responses map[int]*[32]byte, message []byte, strict bool) error

func (*CosiSignature) Challenge

func (c *CosiSignature) Challenge(publics []*Key, message []byte) (*edwards25519.Scalar, error)

func (*CosiSignature) FullVerify

func (c *CosiSignature) FullVerify(publics []*Key, threshold int, message []byte) error

func (*CosiSignature) Keys

func (c *CosiSignature) Keys() []int

func (CosiSignature) MarshalJSON

func (c CosiSignature) MarshalJSON() ([]byte, error)

func (*CosiSignature) Response

func (c *CosiSignature) Response(privateKey, random *Key, publics []*Key, message []byte) (*[32]byte, error)

func (CosiSignature) String

func (c CosiSignature) String() string

func (*CosiSignature) ThresholdVerify

func (c *CosiSignature) ThresholdVerify(threshold int) bool

func (*CosiSignature) UnmarshalJSON

func (c *CosiSignature) UnmarshalJSON(b []byte) error

func (*CosiSignature) VerifyResponse

func (c *CosiSignature) VerifyResponse(publics []*Key, signer int, s *[32]byte, message []byte) error

type Hash

type Hash [32]byte

func HashFromString

func HashFromString(src string) (Hash, error)

func NewHash

func NewHash(data []byte) Hash

func (Hash) ForNetwork

func (h Hash) ForNetwork(net Hash) Hash

func (Hash) HasValue

func (h Hash) HasValue() bool

func (Hash) MarshalJSON

func (h Hash) MarshalJSON() ([]byte, error)

func (Hash) String

func (h Hash) String() string

func (*Hash) UnmarshalJSON

func (h *Hash) UnmarshalJSON(b []byte) error

type Key

type Key [32]byte

func CosiCommit

func CosiCommit(randReader io.Reader) *Key

func DeriveGhostPrivateKey

func DeriveGhostPrivateKey(R, a, b *Key, outputIndex uint64) *Key

func DeriveGhostPublicKey

func DeriveGhostPublicKey(r, A, B *Key, outputIndex uint64) *Key

func KeyFromString

func KeyFromString(s string) (Key, error)

func NewKeyFromSeed

func NewKeyFromSeed(seed []byte) Key

func ViewGhostOutputKey

func ViewGhostOutputKey(P, a, R *Key, outputIndex uint64) *Key

func (Key) CheckKey

func (k Key) CheckKey() bool

func (Key) DeterministicHashDerive

func (k Key) DeterministicHashDerive() Key

func (Key) HasValue

func (k Key) HasValue() bool

func (Key) MarshalJSON

func (k Key) MarshalJSON() ([]byte, error)

func (Key) Public

func (k Key) Public() Key

func (*Key) Sign

func (privateKey *Key) Sign(message []byte) Signature

func (Key) String

func (k Key) String() string

func (*Key) UnmarshalJSON

func (k *Key) UnmarshalJSON(b []byte) error

func (*Key) Verify

func (publicKey *Key) Verify(message []byte, sig Signature) bool

func (*Key) VerifyWithChallenge

func (publicKey *Key) VerifyWithChallenge(message []byte, sig Signature, a *edwards25519.Scalar) bool

type Signature

type Signature [64]byte

func (Signature) MarshalJSON

func (s Signature) MarshalJSON() ([]byte, error)

func (*Signature) R

func (s *Signature) R() []byte

func (*Signature) S

func (s *Signature) S() []byte

func (Signature) String

func (s Signature) String() string

func (*Signature) UnmarshalJSON

func (s *Signature) UnmarshalJSON(b []byte) error