Initial commit

1 files changed, 50 insertions, 0 deletions

diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..263438d
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,50 @@
+#include "blowfish.hpp"
+#include "vectors.h"
+#include <cstdio>
+
+constexpr uint64_t k(const uint8_t key[8]) {
+  uint64_t r = 0;
+  for (int i = 0; i < 8; ++i) {
+    r += static_cast<uint64_t>(key[i]) << (64 - 8 * (i + 1));
+  }
+  return r;
+}
+
+template <int i> struct wrapper {
+  constexpr void operator()() const {
+    constexpr Blowfish b(variable_key[i], 8);
+    constexpr Blowfish::Block x(plaintext_l[i], plaintext_r[i]);
+
+    constexpr auto y = b.encrypt(x);
+    static_assert(y.L == ciphertext_l[i]);
+    static_assert(y.R == ciphertext_r[i]);
+
+    constexpr auto z = b.decrypt(y);
+    static_assert(x.L == z.L);
+    static_assert(x.R == z.R);
+
+    printf("0x%016lx\t", k(variable_key[i]));
+    printf("0x%016lx\t", static_cast<uint64_t>(x));
+    printf("0x%016lx\t", static_cast<uint64_t>(y));
+    printf("0x%016lx\n", static_cast<uint64_t>(z));
+  }
+};
+
+template <template <int> class W, std::size_t... I>
+void caller_impl(std::index_sequence<I...>) {
+  int t[] = {0, ((void)W<I>()(), 1)...};
+  (void)t;
+}
+
+template <template <int> class W, std::size_t N,
+          typename Indices = std::make_index_sequence<N>>
+void call_times() {
+  caller_impl<W>(Indices());
+}
+
+int main(int, char **) {
+  printf("%-18s\t%-18s\t%-18s\t%-18s\n", "/ key", "/ cleartext", "/ encrypt",
+         "/ decrypt");
+  call_times<wrapper, NUM_VARIABLE_KEY_TESTS>();
+  return 0;
+}