1 files changed, 96 insertions, 0 deletions
diff --git a/src/util/fipstools/cavp/cavp_sha_test.cc b/src/util/fipstools/cavp/cavp_sha_test.cc
new file mode 100644
index 00000000..aae25c1c
--- /dev/null
+++ b/src/util/fipstools/cavp/cavp_sha_test.cc
@@ -0,0 +1,96 @@
+/* Copyright (c) 2017, 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. */
+
+// cavp_sha_test processes a NIST CAVP SHA test vector request file and emits
+// the corresponding response.
+
+#include <stdlib.h>
+
+#include <openssl/crypto.h>
+#include <openssl/digest.h>
+
+#include "../crypto/test/file_test.h"
+#include "cavp_test_util.h"
+
+namespace {
+
+struct TestCtx {
+  std::string hash;
+};
+
+}
+
+static bool TestSHA(FileTest *t, void *arg) {
+  TestCtx *ctx = reinterpret_cast<TestCtx *>(arg);
+
+  const EVP_MD *md = EVP_get_digestbyname(ctx->hash.c_str());
+  if (md == nullptr) {
+    return false;
+  }
+  const size_t md_len = EVP_MD_size(md);
+
+  std::string out_len;
+  if (!t->GetInstruction(&out_len, "L") ||
+      md_len != strtoul(out_len.c_str(), nullptr, 0)) {
+    return false;
+  }
+
+  std::string msg_len_str;
+  std::vector<uint8_t> msg;
+  if (!t->GetAttribute(&msg_len_str, "Len") ||
+      !t->GetBytes(&msg, "Msg")) {
+    return false;
+  }
+
+  size_t msg_len = strtoul(msg_len_str.c_str(), nullptr, 0);
+  if (msg_len % 8 != 0 ||
+      msg_len / 8 > msg.size()) {
+    return false;
+  }
+  msg_len /= 8;
+
+  std::vector<uint8_t> out;
+  out.resize(md_len);
+  unsigned digest_len;
+  if (!EVP_Digest(msg.data(), msg_len, out.data(), &digest_len, md, nullptr) ||
+      digest_len != out.size()) {
+    return false;
+  }
+
+  printf("%s", t->CurrentTestToString().c_str());
+  printf("MD = %s\r\n\r\n", EncodeHex(out.data(), out.size()).c_str());
+
+  return true;
+}
+
+static int usage(char *arg) {
+  fprintf(stderr, "usage: %s <hash> <test file>\n", arg);
+  return 1;
+}
+
+int cavp_sha_test_main(int argc, char **argv) {
+  if (argc != 3) {
+    return usage(argv[0]);
+  }
+
+  TestCtx ctx = {std::string(argv[1])};
+
+  FileTest::Options opts;
+  opts.path = argv[2];
+  opts.callback = TestSHA;
+  opts.arg = &ctx;
+  opts.silent = true;
+  opts.comment_callback = EchoComment;
+  return FileTestMain(opts);
+}