secp256k1fx

package
v1.5.2 Latest Latest
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 Go to latest Published: Aug 24, 2021 License: BSD-3-Clause Imports: 18 Imported by: 137

Documentation

Index

Constants

View Source 
const (
	CostPerSignature uint64 = 1000
)

Variables

View Source 
var (
	ID = ids.ID{'s', 'e', 'c', 'p', '2', '5', '6', 'k', '1', 'f', 'x'}
)

ID that this Fx uses when labeled

Functions

This section is empty.

Types

type Credential 

type Credential struct {
	Sigs [][crypto.SECP256K1RSigLen]byte `serialize:"true" json:"signatures"`
}

func (*Credential) MarshalJSON added in v0.8.0 

func (cr *Credential) MarshalJSON() ([]byte, error)

MarshalJSON marshals [cr] to JSON The string representation of each signature is created using the hex formatter

func (*Credential) Verify 

func (cr *Credential) Verify() error

type Factory 

type Factory struct{}

func (*Factory) New 

func (f *Factory) New(*snow.Context) (interface{}, error)

type Fx 

type Fx struct {
	VM          VM
	SECPFactory crypto.FactorySECP256K1R
	// contains filtered or unexported fields
}

Fx describes the secp256k1 feature extension

func (*Fx) Bootstrapped added in v0.8.0 

func (fx *Fx) Bootstrapped() error

func (*Fx) Bootstrapping added in v0.8.0 

func (fx *Fx) Bootstrapping() error

func (*Fx) CreateOutput added in v0.8.0 

func (fx *Fx) CreateOutput(amount uint64, ownerIntf interface{}) (interface{}, error)

CreateOutput creates a new output with the provided control group worth the specified amount

func (*Fx) Initialize 

func (fx *Fx) Initialize(vmIntf interface{}) error

func (*Fx) InitializeVM 

func (fx *Fx) InitializeVM(vmIntf interface{}) error

func (*Fx) VerifyCredentials 

func (fx *Fx) VerifyCredentials(tx Tx, in *Input, cred *Credential, out *OutputOwners) error

VerifyCredentials ensures that the output can be spent by the input with the credential. A nil return values means the output can be spent.

func (*Fx) VerifyOperation 

func (fx *Fx) VerifyOperation(txIntf, opIntf, credIntf interface{}, utxosIntf []interface{}) error

func (*Fx) VerifyPermission added in v0.8.0 

func (fx *Fx) VerifyPermission(txIntf, inIntf, credIntf, ownerIntf interface{}) error

VerifyPermission returns nil iff [credIntf] proves that [controlGroup] assents to [txIntf]

func (*Fx) VerifySpend 

func (fx *Fx) VerifySpend(tx Tx, in *TransferInput, cred *Credential, utxo *TransferOutput) error

VerifySpend ensures that the utxo can be sent to any address

func (*Fx) VerifyTransfer 

func (fx *Fx) VerifyTransfer(txIntf, inIntf, credIntf, utxoIntf interface{}) error

type Input 

type Input struct {
	// This input consumes an output, which has an owner list.
	// This input will be spent with a list of signatures.
	// SignatureList[i] is the signature of OwnerList[i]
	SigIndices []uint32 `serialize:"true" json:"signatureIndices"`
}

func (*Input) Cost added in v1.5.0 

func (in *Input) Cost() (uint64, error)

func (*Input) Verify 

func (in *Input) Verify() error

Verify this input is syntactically valid

type Keychain 

type Keychain struct {

	// These can be used to iterate over. However, they should not be modified externally.
	Addrs ids.ShortSet
	Keys  []*crypto.PrivateKeySECP256K1R
	// contains filtered or unexported fields
}

Keychain is a collection of keys that can be used to spend outputs

func NewKeychain 

func NewKeychain() *Keychain

NewKeychain returns a new, empty, keychain

func (*Keychain) Add 

func (kc *Keychain) Add(key *crypto.PrivateKeySECP256K1R)

Add a new key to the key chain

func (Keychain) Addresses 

func (kc Keychain) Addresses() ids.ShortSet

Addresses returns a list of addresses this keychain manages

func (Keychain) Get 

func (kc Keychain) Get(id ids.ShortID) (*crypto.PrivateKeySECP256K1R, bool)

Get a key from the keychain. If the key is unknown, the

func (*Keychain) Match 

func (kc *Keychain) Match(owners *OutputOwners, time uint64) ([]uint32, []*crypto.PrivateKeySECP256K1R, bool)

Match attempts to match a list of addresses up to the provided threshold

func (*Keychain) New 

func (kc *Keychain) New() (*crypto.PrivateKeySECP256K1R, error)

New returns a newly generated private key

func (*Keychain) PrefixedString 

func (kc *Keychain) PrefixedString(prefix string) string

PrefixedString returns the key chain as a string representation with [prefix] added before every line.

func (*Keychain) Spend 

func (kc *Keychain) Spend(out verify.Verifiable, time uint64) (verify.Verifiable, []*crypto.PrivateKeySECP256K1R, error)

Spend attempts to create an input

func (*Keychain) String 

func (kc *Keychain) String() string

type MintOperation 

type MintOperation struct {
	MintInput      Input          `serialize:"true" json:"mintInput"`
	MintOutput     MintOutput     `serialize:"true" json:"mintOutput"`
	TransferOutput TransferOutput `serialize:"true" json:"transferOutput"`
}

func (*MintOperation) Cost added in v1.5.0 

func (op *MintOperation) Cost() (uint64, error)

func (*MintOperation) InitCtx added in v1.4.12 

func (op *MintOperation) InitCtx(ctx *snow.Context)

func (*MintOperation) Outs 

func (op *MintOperation) Outs() []verify.State

func (*MintOperation) Verify 

func (op *MintOperation) Verify() error

type MintOutput 

type MintOutput struct {
	OutputOwners `serialize:"true"`
}

func (*MintOutput) Verify 

func (out *MintOutput) Verify() error

func (*MintOutput) VerifyState added in v0.8.0 

func (out *MintOutput) VerifyState() error

type OutputOwners 

type OutputOwners struct {
	Locktime  uint64        `serialize:"true" json:"locktime"`
	Threshold uint32        `serialize:"true" json:"threshold"`
	Addrs     []ids.ShortID `serialize:"true" json:"addresses"`
	// contains filtered or unexported fields
}

func (*OutputOwners) Addresses 

func (out *OutputOwners) Addresses() [][]byte

Addresses returns the addresses that manage this output

func (*OutputOwners) AddressesSet added in v0.8.0 

func (out *OutputOwners) AddressesSet() ids.ShortSet

AddressesSet returns addresses as a set

func (*OutputOwners) Equals 

func (out *OutputOwners) Equals(other *OutputOwners) bool

Equals returns true if the provided owners create the same condition

func (*OutputOwners) Fields added in v1.5.1 

func (out *OutputOwners) Fields() (map[string]interface{}, error)

Fields returns JSON keys in a map that can be used with marshal JSON to serialise OutputOwners struct

func (*OutputOwners) InitCtx added in v1.4.12 

func (out *OutputOwners) InitCtx(ctx *snow.Context)

InitCtx assigns the OutputOwners.ctx object to given [ctx] object Must be called at least once for MarshalJSON to work successfully

func (*OutputOwners) MarshalJSON added in v1.4.12 

func (out *OutputOwners) MarshalJSON() ([]byte, error)

MarshalJSON marshals OutputOwners as JSON with human readable addresses. OutputOwners.InitCtx must be called before marshalling this or one of the parent objects to json. Uses the OutputOwners.ctx method to format the addresses. Returns errMarshal error if OutputOwners.ctx is not set.

func (*OutputOwners) Sort 

func (out *OutputOwners) Sort()

func (*OutputOwners) Verify 

func (out *OutputOwners) Verify() error

func (*OutputOwners) VerifyState added in v0.8.0 

func (out *OutputOwners) VerifyState() error

type TestTx 

type TestTx struct{ Bytes []byte }

TestTx is a minimal implementation of a Tx

func (*TestTx) UnsignedBytes 

func (tx *TestTx) UnsignedBytes() []byte

UnsignedBytes returns Bytes

type TestVM 

type TestVM struct {
	CLK   timer.Clock
	Codec codec.Registry
	Log   logging.Logger
}

TestVM is a minimal implementation of a VM

func (*TestVM) Clock 

func (vm *TestVM) Clock() *timer.Clock

func (*TestVM) CodecRegistry added in v1.0.6 

func (vm *TestVM) CodecRegistry() codec.Registry

func (*TestVM) Logger 

func (vm *TestVM) Logger() logging.Logger

type TransferInput 

type TransferInput struct {
	Amt   uint64 `serialize:"true" json:"amount"`
	Input `serialize:"true"`
}

func (*TransferInput) Amount 

func (in *TransferInput) Amount() uint64

Amount returns the quantity of the asset this input produces

func (*TransferInput) InitCtx added in v1.4.12 

func (in *TransferInput) InitCtx(*snow.Context)

func (*TransferInput) Verify 

func (in *TransferInput) Verify() error

Verify this input is syntactically valid

type TransferOutput 

type TransferOutput struct {
	Amt uint64 `serialize:"true" json:"amount"`

	OutputOwners `serialize:"true"`
}

func (*TransferOutput) Amount 

func (out *TransferOutput) Amount() uint64

Amount returns the quantity of the asset this output consumes

func (*TransferOutput) MarshalJSON added in v1.5.1 

func (out *TransferOutput) MarshalJSON() ([]byte, error)

MarshalJSON marshals Amt and the embedded OutputOwners struct into a JSON readable format If OutputOwners cannot be serialised then this will return error

func (*TransferOutput) Owners added in v0.8.0 

func (out *TransferOutput) Owners() interface{}

func (*TransferOutput) Verify 

func (out *TransferOutput) Verify() error

func (*TransferOutput) VerifyState added in v0.8.0 

func (out *TransferOutput) VerifyState() error

type Tx 

type Tx interface {
	UnsignedBytes() []byte
}

Tx that this Fx is supporting

type VM 

type VM interface {
	CodecRegistry() codec.Registry
	Clock() *timer.Clock
	Logger() logging.Logger
}

VM that this Fx must be run by

Source Files

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