daead

Documentation

Overview

Package daead provides implementations of the DeterministicAEAD primitive.

Unlike AEAD, implementations of this interface are not semantically secure, because encrypting the same plaintex always yields the same ciphertext.

Example:

package main

import (
    "fmt"

    "github.com/google/tink/go/daead"
    "github.com/google/tink/go/keyset"
)

func main() {

    kh, err := keyset.NewHandle(daead.AESSIVKeyTemplate())
    if err != nil {
        // handle the error
    }

    d := daead.New(kh)

    ct1 , err := d.EncryptDeterministically([]byte("this data needs to be encrypted"), []byte("additional data"))
    if err != nil {
        // handle error
    }

    pt , err := d.DecryptDeterministically(ct, []byte("additional data"))
    if err != nil {
        // handle error
    }

    ct2 , err := d.EncryptDeterministically([]byte("this data needs to be encrypted"), []byte("additional data"))
    if err != nil {
        // handle error
    }

    // ct1 will be equal to ct2

}

Index

• func AESSIVKeyTemplate() *tinkpb.KeyTemplate
• func New(h *keyset.Handle) (tink.DeterministicAEAD, error)
• func NewWithKeyManager(h *keyset.Handle, km registry.KeyManager) (tink.DeterministicAEAD, error)

Functions

func AESSIVKeyTemplate

func AESSIVKeyTemplate() *tinkpb.KeyTemplate

AESSIVKeyTemplate is a KeyTemplate that generates a AES-SIV key.

func New

func New(h *keyset.Handle) (tink.DeterministicAEAD, error)

New returns a DeterministicAEAD primitive from the given keyset handle.

func NewWithKeyManager

func NewWithKeyManager(h *keyset.Handle, km registry.KeyManager) (tink.DeterministicAEAD, error)

NewWithKeyManager returns a DeterministicAEAD primitive from the given keyset handle and custom key manager.