entropy

Documentation

Index

• Variables
• func FromHex(input string) ([]byte, error)
• func Random(bitSize int) ([]byte, error)
• type Bits
  • func BitsToBytes(bits Bits) (ent []byte, chksum Bits)
  • func CheckSum(ent []byte) Bits
  • func CheckSummed(ent []byte) Bits

Variables

var (
	ErrEntropyLengthInvalid = errors.New("entropy length must be [128, 256] and a multiple of 32")
	ErrBitsChecksumLength   = errors.New("bits and checksum length error")
)

Functions

func FromHex

func FromHex(input string) ([]byte, error)

FromHex creates entropy bits from a hex string

func Random

func Random(bitSize int) ([]byte, error)

Random creates a random entropy of the given length 助记词长度和随机值位数之间的关系 -----|----------|---------------|-------| bits | checksum | bits+checksum | words | -----|----------|---------------|-------| 128 | 4 | 132 | 12 | -----|----------|---------------|-------| 160 | 5 | 165 | 15 | -----|----------|---------------|-------| 192 | 6 | 198 | 18 | -----|----------|---------------|-------| 224 | 7 | 231 | 21 | -----|----------|---------------|-------| 256 | 8 | 264 | 24 | -----|----------|---------------|-------|

Types

type Bits

type Bits []byte

Bits represents a byte slice of individual bits

func BitsToBytes

func BitsToBytes(bits Bits) (ent []byte, chksum Bits)

助记词长度和随机值位数之间的关系 -----|----------|---------------|-------| bits | checksum | bits+checksum | words | -----|----------|---------------|-------| 128 | 4 | 132 | 12 | -----|----------|---------------|-------| 160 | 5 | 165 | 15 | -----|----------|---------------|-------| 192 | 6 | 198 | 18 | -----|----------|---------------|-------| 224 | 7 | 231 | 21 | -----|----------|---------------|-------| 256 | 8 | 264 | 24 | -----|----------|---------------|-------| length := len(bits) // bits+checksum chks := length / 32 // checksum bits bitsLen := length - chks // bits length

func CheckSum

func CheckSum(ent []byte) Bits

CheckSum returns a slice of bits from the given entropy

func CheckSummed

func CheckSummed(ent []byte) Bits

CheckSummed returns a bit slice of entropy with an appended check sum