token

Documentation

Index

• Variables
• type Token
  • func New() (Token, error)
  • func (t Token) MarshalText() ([]byte, error)
  • func (t *Token) UnmarshalText(text []byte) error
  • func (t Token) Verify(otherTok Token) error

Variables

var (
	// Error indicating that a token was malformed.
	ErrInvalidToken = errors.New("Invalid token.")

	// Indicating that verification failed, because the token was
	// incorrect.
	ErrIncorrectToken = errors.New("Incorrect token.")
)

Types

type Token

type Token [128 / 8]byte

A cryptographically random 128-bit value.

func New

func New() (Token, error)

Generate a new, cryptographically random token.

func (Token) MarshalText

func (t Token) MarshalText() ([]byte, error)

func (*Token) UnmarshalText

func (t *Token) UnmarshalText(text []byte) error

func (Token) Verify

func (t Token) Verify(otherTok Token) error

Return an error if the tokens do not match, nil otherwise. This is constant time, and thus resistant to timing sidechannels -- DO NOT compare the tokens for equality with (==).