crypto

Documentation

Index

• Constants
• func NewCrypter(key io.Reader) (*crypter, error)
• func NewCrypterFromFile(filepath string) (*crypter, error)
• func NewRandomCrypter() (*crypter, error)
• type Crypter
• type CrypterError
  • func (e CrypterError) Error() string

Constants

const (

	// SymetricKeyLength is the length in bytes of the key used with the
	// AES-256 algorithm
	SymetricKeyLength = 32

	// HmacKeyLength is the length in bytes of the key used in the HMAC
	// SHA-512 algorithm
	HmacKeyLength = 128

	// HmacOutputLength is the length in bytes of the sum produced by the HMAC
	// SHA-512 algorithm.
	HmacOutputLength = 64
)

Functions

func NewCrypter

func NewCrypter(key io.Reader) (*crypter, error)

New creates and returns a new crypter. Keys are obtained by reading from the provided reader.

func NewCrypterFromFile

func NewCrypterFromFile(filepath string) (*crypter, error)

func NewRandomCrypter

func NewRandomCrypter() (*crypter, error)

Types

type Crypter

type Crypter interface {
	EncryptString(plaintext string) (string, error)
	DecryptString(message string) (string, error)
}

A Crypter is an encrypter/decrypter.

type CrypterError

type CrypterError struct {
	Err string
}

CrypterError represents a run-time error in a crypter method.

func (CrypterError) Error

func (e CrypterError) Error() string