WIP: Crypto stuff

crypto/crypto_test.go

@@ -0,0 +1,43 @@
+package crypto
+
+import (
+	"encoding/base64"
+	"encoding/hex"
+	"github.com/stretchr/testify/require"
+	"log"
+	"testing"
+)
+
+func TestEncryptDecrypt(t *testing.T) {
+	message := "this is a message or is it?"
+	ciphertext, err := Encrypt(message, []byte("AES256Key-32Characters1234567890"))
+	require.Nil(t, err)
+	plaintext, err := Decrypt(ciphertext, []byte("AES256Key-32Characters1234567890"))
+	require.Nil(t, err)
+	log.Println(ciphertext)
+	require.Equal(t, message, plaintext)
+}
+
+func TestEncryptExpectedOutputxxxxx(t *testing.T) {
+	// These values are taken from https://docs.pushbullet.com/#encryption
+	// The following expected ciphertext from the site was used as a baseline:
+	//   MQS2K9l3G8YoLccJooY64kDeWjbkI3fAx4WcrYNtbz4p8Q==
+	//   31 04b62bd9771bc6282dc709a2863ae240 de5a36e42377c0c7859cad83 6d6f3e29f1
+	//   v  tag                              nonce                    ciphertext
+	message := "meow!"
+	key, _ := base64.StdEncoding.DecodeString("1sW28zp7CWv5TtGjlQpDHHG4Cbr9v36fG5o4f74LsKg=")
+	nonce, _ := hex.DecodeString("de5a36e42377c0c7859cad83")
+	ciphertext, err := encryptWithNonce(message, nonce, key)
+	require.Nil(t, err)
+	require.Equal(t, "MQS2K9l3G8YoLccJooY64kDeWjbkI3fAx4WcrYNtbz4p8Q==", ciphertext)
+}
+
+func TestEncryptExpectedOutput(t *testing.T) {
+	// These values are taken from https://docs.pushbullet.com/#encryption, meaning that
+	// all of this is compatible with how Pushbullet encrypts
+	encryptedMessage := "MSfJxxY5YdjttlfUkCaKA57qU9SuCN8+ZhYg/xieI+lDnQ=="
+	key, _ := base64.StdEncoding.DecodeString("1sW28zp7CWv5TtGjlQpDHHG4Cbr9v36fG5o4f74LsKg=")
+	plaintext, err := Decrypt(encryptedMessage, key)
+	require.Nil(t, err)
+	require.Equal(t, "meow!", plaintext)
+}