multisig

package
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Published: Nov 6, 2018 License: Apache-2.0 Imports: 7 Imported by: 0

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Constants

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const (
	PubKeyMultisigThresholdAminoRoute = "tendermint/PubKeyMultisigThreshold"
)

TODO: Figure out API for others to either add their own pubkey types, or to make verify / marshal accept a cdc.

Variables

This section is empty.

Functions

func NewPubKeyMultisigThreshold

func NewPubKeyMultisigThreshold(k int, pubkeys []crypto.PubKey) crypto.PubKey

NewPubKeyMultisigThreshold returns a new PubKeyMultisigThreshold. Panics if len(pubkeys) < k or 0 >= k.

Types

type Multisignature

type Multisignature struct {
	BitArray *bitarray.CompactBitArray
	Sigs     [][]byte
}

Multisignature is used to represent the signature object used in the multisigs. Sigs is a list of signatures, sorted by corresponding index.

func NewMultisig

func NewMultisig(n int) *Multisignature

NewMultisig returns a new Multisignature of size n.

func (*Multisignature) AddSignature

func (mSig *Multisignature) AddSignature(sig []byte, index int)

AddSignature adds a signature to the multisig, at the corresponding index. If the signature already exists, replace it.

func (*Multisignature) AddSignatureFromPubKey

func (mSig *Multisignature) AddSignatureFromPubKey(sig []byte, pubkey crypto.PubKey, keys []crypto.PubKey) error

AddSignatureFromPubKey adds a signature to the multisig, at the index in keys corresponding to the provided pubkey.

func (*Multisignature) Marshal

func (mSig *Multisignature) Marshal() []byte

Marshal the multisignature with amino

type PubKeyMultisigThreshold

type PubKeyMultisigThreshold struct {
	K       uint            `json:"threshold"`
	PubKeys []crypto.PubKey `json:"pubkeys"`
}

PubKeyMultisigThreshold implements a K of N threshold multisig.

func (*PubKeyMultisigThreshold) Address

func (pk *PubKeyMultisigThreshold) Address() crypto.Address

Address returns tmhash(PubKeyMultisigThreshold.Bytes())

func (*PubKeyMultisigThreshold) Bytes

func (pk *PubKeyMultisigThreshold) Bytes() []byte

Bytes returns the amino encoded version of the PubKeyMultisigThreshold

func (*PubKeyMultisigThreshold) Equals

func (pk *PubKeyMultisigThreshold) Equals(other crypto.PubKey) bool

Equals returns true iff pk and other both have the same number of keys, and all constituent keys are the same, and in the same order.

func (*PubKeyMultisigThreshold) VerifyBytes

func (pk *PubKeyMultisigThreshold) VerifyBytes(msg []byte, marshalledSig []byte) bool

VerifyBytes expects sig to be an amino encoded version of a MultiSignature. Returns true iff the multisignature contains k or more signatures for the correct corresponding keys, and all signatures are valid. (Not just k of the signatures) The multisig uses a bitarray, so multiple signatures for the same key is not a concern.

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