1 files changed, 128 insertions, 0 deletions
diff --git a/src/crypto/base64/base64_test.cc b/src/crypto/base64/base64_test.cc
new file mode 100644
index 0000000..fde0b46
--- /dev/null
+++ b/src/crypto/base64/base64_test.cc
@@ -0,0 +1,128 @@
+/* Copyright (c) 2014, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/base64.h>
+#include <openssl/crypto.h>
+#include <openssl/err.h>
+
+
+struct TestVector {
+  const char *decoded;
+  const char *encoded;
+};
+
+// Test vectors from RFC 4648.
+static const TestVector kTestVectors[] = {
+  { "", "" },
+  { "f" , "Zg==" },
+  { "fo", "Zm8=" },
+  { "foo", "Zm9v" },
+  { "foob", "Zm9vYg==" },
+  { "fooba", "Zm9vYmE=" },
+  { "foobar", "Zm9vYmFy" },
+};
+
+static const size_t kNumTests = sizeof(kTestVectors) / sizeof(kTestVectors[0]);
+
+static bool TestEncode() {
+  for (size_t i = 0; i < kNumTests; i++) {
+    const TestVector *t = &kTestVectors[i];
+    uint8_t out[9];
+    size_t len = EVP_EncodeBlock(out, (const uint8_t*)t->decoded,
+                                 strlen(t->decoded));
+    if (len != strlen(t->encoded) ||
+        memcmp(out, t->encoded, len) != 0) {
+      fprintf(stderr, "encode(\"%s\") = \"%.*s\", want \"%s\"\n",
+              t->decoded, (int)len, (const char*)out, t->encoded);
+      return false;
+    }
+  }
+  return true;
+}
+
+static bool TestDecode() {
+  uint8_t out[6];
+  size_t len;
+
+  for (size_t i = 0; i < kNumTests; i++) {
+    // Test the normal API.
+    const TestVector *t = &kTestVectors[i];
+    size_t expected_len = strlen(t->decoded);
+    if (!EVP_DecodeBase64(out, &len, sizeof(out),
+                          (const uint8_t*)t->encoded, strlen(t->encoded))) {
+      fprintf(stderr, "decode(\"%s\") failed\n", t->encoded);
+      return false;
+    }
+    if (len != strlen(t->decoded) ||
+        memcmp(out, t->decoded, len) != 0) {
+      fprintf(stderr, "decode(\"%s\") = \"%.*s\", want \"%s\"\n",
+              t->encoded, (int)len, (const char*)out, t->decoded);
+      return false;
+    }
+
+    // Test that the padding behavior of the deprecated API is preserved.
+    int ret = EVP_DecodeBlock(out, (const uint8_t*)t->encoded,
+                              strlen(t->encoded));
+    if (ret < 0) {
+      fprintf(stderr, "decode(\"%s\") failed\n", t->encoded);
+      return false;
+    }
+    if (ret % 3 != 0) {
+      fprintf(stderr, "EVP_DecodeBlock did not ignore padding\n");
+      return false;
+    }
+    if (expected_len % 3 != 0) {
+      ret -= 3 - (expected_len % 3);
+    }
+    if (static_cast<size_t>(ret) != strlen(t->decoded) ||
+        memcmp(out, t->decoded, ret) != 0) {
+      fprintf(stderr, "decode(\"%s\") = \"%.*s\", want \"%s\"\n",
+              t->encoded, ret, (const char*)out, t->decoded);
+      return false;
+    }
+  }
+
+  if (EVP_DecodeBase64(out, &len, sizeof(out), (const uint8_t*)"a!bc", 4)) {
+    fprintf(stderr, "Failed to reject invalid characters in the middle.\n");
+    return false;
+  }
+
+  if (EVP_DecodeBase64(out, &len, sizeof(out), (const uint8_t*)"a=bc", 4)) {
+    fprintf(stderr, "Failed to reject invalid characters in the middle.\n");
+    return false;
+  }
+
+  if (EVP_DecodeBase64(out, &len, sizeof(out), (const uint8_t*)"abc", 4)) {
+    fprintf(stderr, "Failed to reject invalid input length.\n");
+    return false;
+  }
+
+  return true;
+}
+
+int main(void) {
+  CRYPTO_library_init();
+  ERR_load_crypto_strings();
+
+  if (!TestEncode() ||
+      !TestDecode()) {
+    return 1;
+  }
+
+  printf("PASS\n");
+  return 0;
+}