feat(tfstated): implement GET and POST methods, states are encrypted in a sqlite3 database

pkg/scrypto/aes256_test.go

@@ -0,0 +1,60 @@
+package scrypto
+
+import (
+	"encoding/hex"
+	"slices"
+	"strings"
+	"testing"
+)
+
+func TestAES256KeyHex(t *testing.T) {
+	testKeyHex := "28278b7c0a25f01d3cab639633b9487f9ea1e9a2176dc9595a3f01323aa44284"
+	testKey, _ := hex.DecodeString(testKeyHex)
+
+	var key AES256Key
+	if err := key.FromHex(testKeyHex); err != nil {
+		t.Errorf("got unexpected error %+v", err)
+	}
+	if slices.Compare(testKey, key[:]) != 0 {
+		t.Errorf("got %v, wanted %v", testKey, key[:])
+	}
+	if strings.Compare(testKeyHex, key.Hex()) != 0 {
+		t.Errorf("got %v, wanted %v", testKeyHex, key.Hex())
+	}
+}
+
+func TestAES256(t *testing.T) {
+	keyHex := "28278b7c0a25f01d3cab639633b9487f9ea1e9a2176dc9595a3f01323aa44284"
+	var key AES256Key
+	if err := key.FromHex(keyHex); err != nil {
+		t.Errorf("got unexpected error %+v", err)
+	}
+
+	data := []byte("Hello world!")
+	encryptedData, err := key.EncryptAES256(data)
+	if err != nil {
+		t.Errorf("got unexpected error when encrypting data %+v", err)
+	}
+
+	decryptedData, err := key.DecryptAES256(encryptedData)
+	if err != nil {
+		t.Errorf("got unexpected error when decrypting data %+v", err)
+	}
+
+	if slices.Compare(data, decryptedData) != 0 {
+		t.Errorf("got %v, wanted %v", decryptedData, data)
+	}
+}
+
+func TestAES256InvalidData(t *testing.T) {
+	keyHex := "28278b7c0a25f01d3cab639633b9487f9ea1e9a2176dc9595a3f01323aa44284"
+	var key AES256Key
+	if err := key.FromHex(keyHex); err != nil {
+		t.Errorf("got unexpected error when converting data from base64: %+v", err)
+	}
+
+	iv := make([]byte, AES256IVSize)
+	if _, err := key.DecryptAES256(append(iv, []byte("foo")...)); err == nil {
+		t.Error("decrypting operation should have failed")
+	}
+}