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diff --git a/src/ceph/src/test/base64.cc b/src/ceph/src/test/base64.cc
new file mode 100644
index 0000000..9fcdef4
--- /dev/null
+++ b/src/ceph/src/test/base64.cc
@@ -0,0 +1,100 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2011 Dreamhost
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#include "common/armor.h"
+#include "common/config.h"
+#include "include/buffer.h"
+#include "include/encoding.h"
+
+#include "gtest/gtest.h"
+
+TEST(RoundTrip, SimpleRoundTrip) {
+  static const int OUT_LEN = 4096;
+  const char * const original = "abracadabra";
+  const char * const correctly_encoded = "YWJyYWNhZGFicmE=";
+  char out[OUT_LEN];
+  memset(out, 0, sizeof(out));
+  int alen = ceph_armor(out, out + OUT_LEN, original, original + strlen(original));
+  ASSERT_STREQ(correctly_encoded, out);
+
+  char out2[OUT_LEN];
+  memset(out2, 0, sizeof(out2));
+  ceph_unarmor(out2, out2 + OUT_LEN, out, out + alen);
+  ASSERT_STREQ(original, out2);
+}
+
+TEST(RoundTrip, RandomRoundTrips) {
+  static const int IN_MAX = 1024;
+  static const int OUT_MAX = 4096;
+  static const int ITERS = 1000;
+  for (int i = 0; i < ITERS; ++i) {
+    unsigned int seed = i;
+    int in_len = rand_r(&seed) % IN_MAX;
+
+    char in[IN_MAX];
+    memset(in, 0, sizeof(in));
+    for (int j = 0; j < in_len; ++j) {
+      in[j] = rand_r(&seed) % 0xff;
+    }
+    char out[OUT_MAX];
+    memset(out, 0, sizeof(out));
+    int alen = ceph_armor(out, out + OUT_MAX, in, in + in_len);
+    ASSERT_GE(alen, 0);
+
+    char decoded[IN_MAX];
+    memset(decoded, 0, sizeof(decoded));
+    int blen = ceph_unarmor(decoded, decoded + IN_MAX, out, out + alen);
+    ASSERT_GE(blen, 0);
+
+    ASSERT_EQ(memcmp(in, decoded, in_len), 0);
+  }
+}
+
+TEST(EdgeCase, EndsInNewline) {
+  static const int OUT_MAX = 4096;
+
+  char b64[] =
+    "aaaa\n";
+
+    char decoded[OUT_MAX];
+    memset(decoded, 0, sizeof(decoded));
+    int blen = ceph_unarmor(decoded, decoded + OUT_MAX, b64, b64 + sizeof(b64)-1);
+    ASSERT_GE(blen, 0);
+}
+
+TEST(FuzzEncoding, BadDecode1) {
+  static const int OUT_LEN = 4096;
+  const char * const bad_encoded = "FAKEBASE64 foo";
+  char out[OUT_LEN];
+  memset(out, 0, sizeof(out));
+  int alen = ceph_unarmor(out, out + OUT_LEN, bad_encoded, bad_encoded + strlen(bad_encoded));
+  ASSERT_LT(alen, 0);
+}
+
+TEST(FuzzEncoding, BadDecode2) {
+  string str("FAKEBASE64 foo");
+  bool failed = false;
+  try {
+    bufferlist bl;
+    bl.append(str);
+
+    bufferlist cl;
+    cl.decode_base64(bl);
+    cl.hexdump(std::cerr);
+  }
+  catch (const buffer::error &err) {
+    failed = true;
+  }
+  ASSERT_EQ(failed, true);
+}