GO-2022-0905: BLS Signature "Malleability" in github.com/filecoin-project/lotus

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v1.0.0 Latest Latest Go to latest Published: Oct 20, 2020 License: Apache-2.0, MIT Imports: 16 Imported by: 12

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type API struct {
	fx.In

	full.ChainAPI
	full.StateAPI
	full.MpoolAPI
}

API is the dependencies need to run a fund manager

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

FundMgr monitors available balances and adds funds when EnsureAvailable is called

func StartFundManager(lc fx.Lifecycle, api API) *FundMgr

StartFundManager creates a new fund manager and sets up event hooks to manage state changes

func (fm *FundMgr) EnsureAvailable(ctx context.Context, addr, wallet address.Address, amt types.BigInt) (cid.Cid, error)

EnsureAvailable looks at the available balance in escrow for a given address, and if less than the passed in amount, adds the difference