backup

Documentation

Overview

package backup implements the SeedHammer backup scheme.

Index

• Constants
• Variables
• func EngraveDescriptor(scale, strokeWidth float32, plate Descriptor) (engrave.Command, error)
• func EngraveSeed(scale, strokeWidth float32, plate Seed) (engrave.Command, error)
• func Recoverable(desc urtypes.OutputDescriptor) bool
• func TitleString(face *vector.Face, s string) string
• type Descriptor
• type PlateSize
  • func (p PlateSize) Bounds() image.Rectangle
• type Seed

Constants

const MaxTitleLen = 18

Variables

var ErrDescriptorTooLarge = errors.New("output descriptor is too large to backup")

Functions

func EngraveDescriptor

func EngraveDescriptor(scale, strokeWidth float32, plate Descriptor) (engrave.Command, error)

func EngraveSeed

func EngraveSeed(scale, strokeWidth float32, plate Seed) (engrave.Command, error)

func Recoverable

func Recoverable(desc urtypes.OutputDescriptor) bool

func TitleString

func TitleString(face *vector.Face, s string) string

Types

type Descriptor

type Descriptor struct {
	Descriptor urtypes.OutputDescriptor
	KeyIdx     int
	Font       *vector.Face
	Size       PlateSize
}

type PlateSize

type PlateSize int

const (
	SmallPlate PlateSize = iota
	SquarePlate
	LargePlate
)

func (PlateSize) Bounds

func (p PlateSize) Bounds() image.Rectangle

type Seed

type Seed struct {
	Title             string
	KeyIdx            int
	Mnemonic          bip39.Mnemonic
	Keys              int
	MasterFingerprint uint32
	Font              *vector.Face
	Size              PlateSize
}