1 files changed, 17 insertions, 0 deletions
diff --git a/LibMatrix.Federation/Utilities/UnpaddedBase64.cs b/LibMatrix.Federation/Utilities/UnpaddedBase64.cs
new file mode 100644
index 0000000..06f84b2
--- /dev/null
+++ b/LibMatrix.Federation/Utilities/UnpaddedBase64.cs
@@ -0,0 +1,17 @@
+namespace LibMatrix.FederationTest.Utilities;
+
+public static class UnpaddedBase64 {
+    public static string Encode(byte[] data) {
+        return Convert.ToBase64String(data).TrimEnd('=');
+    }
+
+    public static byte[] Decode(string base64) {
+        string paddedBase64 = base64;
+        switch (paddedBase64.Length % 4) {
+            case 2: paddedBase64 += "=="; break;
+            case 3: paddedBase64 += "="; break;
+        }
+
+        return Convert.FromBase64String(paddedBase64);
+    }
+}
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