hasher

Documentation

Index

• Constants
• Variables
• type Algorithm
• type Metadata
  • func Decode(r io.Reader) (*Metadata, error)
  • func (m *Metadata) Encode() (string, error)
• type Strategy

Constants

const (
	// Argon2id defines the argon2i hashing algorithm
	Argon2id = Algorithm(0x01)
	// Pbkdf2HmacSha512 defines pbkdf2+hmac-sha512 hashing algorithm
	Pbkdf2HmacSha512 = Algorithm(0x02)
	//ScryptBlake2b512 defines scrypt+blake2b-512 hashing algorithm
	ScryptBlake2b512 = Algorithm(0x03)
)

Variables

var Strategies = map[Algorithm]func(func() []byte) Strategy{
	Argon2id: func(salt func() []byte) Strategy {
		s, _ := newArgon2Deriver(salt(), argon2.IDKey)
		return s
	},
	ScryptBlake2b512: func(salt func() []byte) Strategy {
		s, _ := newScryptDeriver(func() hash.Hash {
			h, err := blake2b.New512(nil)
			if err != nil {
				panic(err.Error())
			}
			return h
		}, salt())
		return s
	},
	Pbkdf2HmacSha512: func(salt func() []byte) Strategy {
		s, _ := newPbkdf2Deriver(sha512.New, salt(), pbkdf2Iterations, sha512.Size)
		return s
	},
}

Strategies defines available hashing strategies

Types

type Algorithm

type Algorithm uint8

Algorithm is the password hashing strategy code

type Metadata

type Metadata struct {
	Algorithm uint8
	Version   uint8
	Salt      []byte
	Hash      []byte
	// contains filtered or unexported fields
}

Metadata represents hasher result

func Decode

func Decode(r io.Reader) (*Metadata, error)

Decode metadata from string

func (*Metadata) Encode

func (m *Metadata) Encode() (string, error)

Encode metadata as BASE64URL CBOR payload

type Strategy

type Strategy interface {
	Hash([]byte) (*Metadata, error)
}

Strategy defines hash algorithm strategy contract