refactor: mylib 重命名为 libs

更清晰的目录命名，libs/ 存放内嵌的独立协议实现库。

libs/grdp/protocol/sec/sec_test.go

@@ -0,0 +1,38 @@
+package sec
+
+import (
+	"testing"
+
+	"github.com/shadow1ng/fscan/libs/grdp/glog"
+	"github.com/shadow1ng/fscan/libs/grdp/protocol/t125/gcc"
+)
+
+func TestGenerateKeysRejectsShortRandoms(t *testing.T) {
+	glog.SetLevel(glog.NONE)
+
+	clientRandom := make([]byte, 32)
+	serverRandom := make([]byte, 32)
+
+	if _, _, _, err := generateKeys(clientRandom, nil, gcc.ENCRYPTION_FLAG_128BIT); err == nil {
+		t.Fatal("expected error for empty server random")
+	}
+
+	if _, _, _, err := generateKeys(nil, serverRandom, gcc.ENCRYPTION_FLAG_128BIT); err == nil {
+		t.Fatal("expected error for empty client random")
+	}
+}
+
+func TestGenerateKeysAcceptsValidRandoms(t *testing.T) {
+	glog.SetLevel(glog.NONE)
+
+	clientRandom := make([]byte, 32)
+	serverRandom := make([]byte, 32)
+
+	macKey, decryptKey, encryptKey, err := generateKeys(clientRandom, serverRandom, gcc.ENCRYPTION_FLAG_128BIT)
+	if err != nil {
+		t.Fatalf("generateKeys returned error for valid randoms: %v", err)
+	}
+	if len(macKey) != 16 || len(decryptKey) != 16 || len(encryptKey) != 16 {
+		t.Fatalf("unexpected key lengths: mac=%d decrypt=%d encrypt=%d", len(macKey), len(decryptKey), len(encryptKey))
+	}
+}