Everywhere: Hoist the Libraries folder to the top-level

Libraries/LibCrypto/Cipher/Cipher.cpp

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2024, Ben Wiederhake
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibCrypto/Cipher/Cipher.h>
+
+namespace Crypto::Cipher {
+
+bool padding_always_needs_extra_block(PaddingMode mode)
+{
+    switch (mode) {
+    case PaddingMode::CMS:
+        return true;
+    case PaddingMode::RFC5246:
+    case PaddingMode::Null:
+    case PaddingMode::Bit:
+    case PaddingMode::Random:
+    case PaddingMode::Space:
+    case PaddingMode::ZeroLength:
+        return false;
+    }
+    VERIFY_NOT_REACHED();
+}
+
+}