if err != nil {
		return DEK{}, err
	}

	plaintext, err := sioutil.Random(32)
	if err != nil {
		return DEK{}, err
	}
	associatedData, _ := context.MarshalText()
	ciphertext := aead.Seal(nil, nonce, plaintext, associatedData)

	json := jsoniter.ConfigCompatibleWithStandardLibrary
	ciphertext, err = json.Marshal(encryptedKey{
		Algorithm: algorithm,
		IV:        iv,
		Nonce:     nonce,