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 Go to latest Published: Jul 4, 2020 License: Apache-2.0 Imports: 3 Imported by: 101

README

go-eth2-wallet-types

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Go library containing wallet-related types such as wallet, account and store.

** Please note that this library uses standards that are not yet final, and as such may result in changes that alter public and private keys. Do not use this library for production use just yet **

Table of Contents

Install

go-eth2-wallet-types is a standard Go module which can be installed with:

go get github.com/wealdtech/go-eth2-wallet-types

Usage

go-eth2-wallet-types is used as part of go-eth2-wallet: please see documentation there for details.

Maintainers

Jim McDonald: @mcdee.

Contribute

Contributions welcome. Please check out the issues.

License

Apache-2.0 © 2019 Weald Technology Trading Ltd

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Account 

type Account interface {
	AccountIDProvider
	AccountNameProvider
	AccountPublicKeyProvider
}

Account is a generic interface for accounts, providing minimal required functionality.

type AccountCompositePublicKeyProvider added in v2.3.0 

type AccountCompositePublicKeyProvider interface {
	// CompositePublicKey provides the composite public key for the account.
	CompositePublicKey() e2types.PublicKey
}

AccountCompositePublicKeyProvider is the interface for accounts that can provide a composite public key.

type AccountIDProvider added in v2.3.0 

type AccountIDProvider interface {
	// ID provides the ID for the account.
	ID() uuid.UUID
}

AccountIDProvider is the interface for accounts that can provide an ID.

type AccountLocker added in v2.3.0 

type AccountLocker interface {
	// Lock locks the account.  A locked account cannot sign.
	Lock(ctx context.Context) error

	// Unlock unlocks the account.  An unlocked account can sign.
	Unlock(ctx context.Context, passphrase []byte) error

	// IsUnlocked returns true if the account is unlocked.
	IsUnlocked(ctx context.Context) (bool, error)
}

AccountLocker is the interface for accounts that can be locked and unlocked.

type AccountMetadataProvider added in v2.3.0 

type AccountMetadataProvider interface {
	// WalletID provides the ID for the wallet.
	WalletID() uuid.UUID

	// ID provides the ID for the account.
	ID() uuid.UUID

	// Name provides the name for the account.
	Name() string
}

AccountMetadataProvider provides metadata for an account. It is used for various accounting purposes, for example to ensure that no two accounts with the same name exist in a single wallet.

type AccountNameProvider added in v2.3.0 

type AccountNameProvider interface {
	// Name provides the name for the account.
	Name() string
}

AccountNameProvider is the interface for accounts that can provide a name.

type AccountParticipantsProvider added in v2.3.0 

type AccountParticipantsProvider interface {
	// Participants provides the participants that hold the composite key.
	Participants() map[uint64]string
}

AccountParticipantsProvider is the interface for accounts that can participate in distributed operations.

type AccountPathProvider added in v2.3.0 

type AccountPathProvider interface {
	// Path provides the path for the account.
	Path() string
}

AccountPathProvider is the interface for accounts that can provide a path.

type AccountPrivateKeyProvider 

type AccountPrivateKeyProvider interface {
	// PrivateKey provides the private key for the account.
	PrivateKey(ctx context.Context) (e2types.PrivateKey, error)
}

AccountPrivateKeyProvider is the interface for accounts that can provide a private key.

type AccountProtectingSigner added in v2.3.0 

type AccountProtectingSigner interface {
	// SignGeneric signs a generic root with protection.
	SignGeneric(ctx context.Context, data []byte, domain []byte) (e2types.Signature, error)

	// SignBeaconProposal signs a beacon proposal with protection.
	SignBeaconProposal(ctx context.Context,
		slot uint64,
		proposerIndex uint64,
		parentRoot []byte,
		stateRoot []byte,
		bodyRoot []byte,
		domain []byte) (e2types.Signature, error)

	// SignBeaconAttestation signs a beacon attestation with protection.
	SignBeaconAttestation(ctx context.Context,
		slot uint64,
		committeeIndex uint64,
		blockRoot []byte,
		sourceEpoch uint64,
		sourceRoot []byte,
		targetEpoch uint64,
		targetRoot []byte,
		domain []byte) (e2types.Signature, error)
}

AccountProtectingSigner is the interface for accounts that sign with protection.

type AccountPublicKeyProvider added in v2.3.0 

type AccountPublicKeyProvider interface {
	// PublicKey provides the public key for the account.
	PublicKey() e2types.PublicKey
}

AccountPublicKeyProvider is the interface for accounts that can provide a public key.

type AccountSigner added in v2.3.0 

type AccountSigner interface {
	// Sign signs data with the account.
	Sign(ctx context.Context, data []byte) (e2types.Signature, error)
}

AccountSigner is the interface for accounts that can sign generic data.

type AccountSigningThresholdProvider added in v2.3.0 

type AccountSigningThresholdProvider interface {
	// SigningThreshold provides the threshold to make a valid composite signature.
	SigningThreshold() uint32
}

AccountSigningThresholdProvider is the interface for accounts that can provide a signing threshold.

type AccountVerificationVectorProvider added in v2.3.0 

type AccountVerificationVectorProvider interface {
	// VerificationVector provides the composite verification vector for regeneration.
	VerificationVector() []e2types.PublicKey
}

AccountVerificationVectorProvider is the interface for accounts that can provide a verification vector.

type AccountWalletProvider added in v2.3.0 

type AccountWalletProvider interface {
	// Wallet provides the wallet for this account.
	Wallet() Wallet
}

AccountWalletProvider is the interface for accounts that can provide their containing wallet.

type DistributedAccount added in v2.2.0 

type DistributedAccount interface {
	AccountIDProvider
	AccountNameProvider
	AccountCompositePublicKeyProvider
	AccountSigningThresholdProvider
	AccountParticipantsProvider
}

DistributedAccount is generic interface for distributed accounts, providing minimal required functionality.

type Encryptor 

type Encryptor interface {
	// Name() provides the name of the encryptor
	Name() string

	// Version() provides the version of the encryptor
	Version() uint

	// Encrypt encrypts a byte array with its encryption mechanism and key
	Encrypt(data []byte, key []byte) (map[string]interface{}, error)

	// Decrypt encrypts a byte array with its encryption mechanism and key
	Decrypt(data map[string]interface{}, key []byte) ([]byte, error)
}

Encryptor is the interface for encrypting and decrypting sensitive information in wallets.

type Store 

type Store interface {
	// Name provides the name of the store
	Name() string

	// StoreWallet stores wallet data.  It will fail if it cannot store the data.
	StoreWallet(walletID uuid.UUID, walletName string, data []byte) error

	// RetrieveWallet retrieves wallet data for all wallets.
	RetrieveWallets() <-chan []byte

	// RetrieveWallet retrieves wallet data for a wallet with a given name.
	// It will fail if it cannot retrieve the data.
	RetrieveWallet(walletName string) ([]byte, error)

	// RetrieveWalletByID retrieves wallet data for a wallet with a given ID.
	// It will fail if it cannot retrieve the data.
	RetrieveWalletByID(walletID uuid.UUID) ([]byte, error)

	// StoreAccount stores account data.  It will fail if it cannot store the data.
	StoreAccount(walletID uuid.UUID, accountID uuid.UUID, data []byte) error

	// RetrieveAccounts retrieves account information for all accounts.
	RetrieveAccounts(walletID uuid.UUID) <-chan []byte

	// RetrieveAccount retrieves account data for a wallet with a given ID.
	// It will fail if it cannot retrieve the data.
	RetrieveAccount(walletID uuid.UUID, accountID uuid.UUID) ([]byte, error)

	// StoreAccountsIndex stores the index of accounts for a given wallet.
	StoreAccountsIndex(walletID uuid.UUID, data []byte) error

	// RetrieveAccountsIndex retrieves the index of accounts for a given wallet.
	RetrieveAccountsIndex(walletID uuid.UUID) ([]byte, error)
}

Store is the interface for wallet stores. It is used to store and access data provided by wallets, both wallets themselves as well as keys inside the wallets.

type StoreLocationProvider 

type StoreLocationProvider interface {
	Location() string
}

StoreLocationProvider provides the location of the store.

type StoreProvider 

type StoreProvider interface {
	// Store returns the store.
	Store() Store
}

StoreProvider is the interface provides a store.

type Wallet 

type Wallet interface {
	WalletIDProvider
	WalletTypeProvider
	WalletNameProvider
	WalletVersionProvider
	WalletAccountsProvider
}

Wallet is a generic interface for wallets, providing minimal required functionality.

type WalletAccountByIDProvider added in v2.3.0 

type WalletAccountByIDProvider interface {
	// AccountByID provides a single account from the wallet given its ID.
	// This will error if the account is not found.
	AccountByID(ctx context.Context, id uuid.UUID) (Account, error)
}

WalletAccountByIDProvider is the interface for wallets that provide an account given its ID.

type WalletAccountByNameProvider added in v2.3.0 

type WalletAccountByNameProvider interface {
	// AccountByName provides a single account from the wallet given its name.
	// This will error if the account is not found.
	AccountByName(ctx context.Context, name string) (Account, error)
}

WalletAccountByNameProvider is the interface for wallets that provide an account given its name.

type WalletAccountCreator added in v2.2.0 

type WalletAccountCreator interface {
	// CreateAccount creates a new account in the wallet.
	// The only rule for names is that they cannot start with an underscore (_) character.
	// This will error if an account with the name already exists.
	CreateAccount(ctx context.Context, name string, passphrase []byte) (Account, error)
}

WalletAccountCreator is the interface for wallets that can create accounts.

type WalletAccountImporter 

type WalletAccountImporter interface {
	// ImportAccount creates a new account in the wallet from an existing private key.
	// The only rule for names is that they cannot start with an underscore (_) character.
	// This will error if an account with the name already exists.
	ImportAccount(ctx context.Context, name string, key []byte, passphrase []byte) (Account, error)
}

WalletAccountImporter is the interface for wallets that can import accounts.

type WalletAccountsByPathProvider added in v2.3.0 

type WalletAccountsByPathProvider interface {
	// AccountsByPath provides all matching accounts in the wallet.
	AccountsByPath(ctx context.Context, path string) <-chan Account
}

WalletAccountsByPathProvider is the interface for wallets that provide accounts given a path.

type WalletAccountsProvider added in v2.3.0 

type WalletAccountsProvider interface {
	// Accounts provides all accounts in the wallet.
	Accounts(ctx context.Context) <-chan Account
}

WalletAccountsProvider is the interface for wallets that provide account information.

type WalletDistributedAccountCreator added in v2.3.0 

type WalletDistributedAccountCreator interface {
	// CreateDistributedAccount creates a new distributed account in the wallet.
	// The only rule for names is that they cannot start with an underscore (_) character.
	// This will error if an account with the name already exists.
	CreateDistributedAccount(ctx context.Context, name string, particpants uint32, signingThreshold uint32, passphrase []byte) (Account, error)
}

WalletDistributedAccountCreator is the interface for wallets that can create distributed accounts.

type WalletDistributedAccountImporter added in v2.2.0 

type WalletDistributedAccountImporter interface {
	// ImportDistributedAccount creates a new distributed account in the wallet from provided data.
	// The only rule for names is that they cannot start with an underscore (_) character.
	// This will error if an account with the name already exists.
	ImportDistributedAccount(ctx context.Context,
		name string,
		key []byte,
		signingThreshold uint32,
		verificationVector [][]byte,
		participants map[uint64]string,
		passphrase []byte) (Account, error)
}

WalletDistributedAccountImporter is the interface for wallets that can import distributed accounts.

type WalletExporter 

type WalletExporter interface {
	// Export exports the entire wallet, protected by an additional passphrase.
	Export(ctx context.Context, passphrase []byte) ([]byte, error)
}

WalletExporter is the interface for wallets that can export themselves.

type WalletIDProvider added in v2.3.0 

type WalletIDProvider interface {
	// ID provides the ID for the wallet.
	ID() uuid.UUID
}

WalletIDProvider is the interface for wallets that can provide an ID.

type WalletKeyProvider 

type WalletKeyProvider interface {
	// Key returns the wallet's key.
	Key(ctx context.Context) ([]byte, error)
}

WalletKeyProvider is the interface for wallets that can provide a key.

type WalletLocker added in v2.3.0 

type WalletLocker interface {
	// Lock locks the wallet.  A locked account cannot create new accounts.
	Lock(ctx context.Context) error

	// Unlock unlocks the wallet.  An unlocked account can create new accounts.
	Unlock(ctx context.Context, passphrase []byte) error

	// IsUnlocked returns true if the wallet is unlocked.
	IsUnlocked(ctx context.Context) (bool, error)
}

WalletLocker is the interface for wallets that can be locked and unlocked.

type WalletNameProvider added in v2.3.0 

type WalletNameProvider interface {
	// Name provides the name for the wallet.
	Name() string
}

WalletNameProvider is the interface for wallets that can provide a name.

type WalletTypeProvider added in v2.3.0 

type WalletTypeProvider interface {
	// Type provides the type for the wallet.
	Type() string
}

WalletTypeProvider is the interface for wallets that can provide a type.

type WalletVersionProvider added in v2.3.0 

type WalletVersionProvider interface {
	// Version provides the version of the wallet.
	Version() uint
}

WalletVersionProvider is the interface for wallets that can provide a version.

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