1 files changed, 59 insertions, 0 deletions
diff --git a/src/tests/test_pad.cpp b/src/tests/test_pad.cpp
new file mode 100644
index 000000000..43ac3dfb5
--- /dev/null
+++ b/src/tests/test_pad.cpp
@@ -0,0 +1,59 @@
+/*
+* (C) 2016 René Korthaus, Rohde & Schwarz Cybersecurity
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#include "tests.h"
+
+#if defined(BOTAN_HAS_CIPHER_MODE_PADDING)
+  #include <botan/mode_pad.h>
+#endif
+
+namespace Botan_Tests {
+
+#if defined(BOTAN_HAS_CIPHER_MODE_PADDING)
+
+class Cipher_Mode_Padding_Tests : public Text_Based_Test
+   {
+   public:
+      Cipher_Mode_Padding_Tests() :
+         Text_Based_Test("pad.vec", {"In", "Out", "Blocksize"})
+         {}
+
+      Test::Result run_one_test(const std::string& algo, const VarMap& vars) override
+         {
+         const std::vector<uint8_t> input    = get_req_bin(vars, "In");
+         const std::vector<uint8_t> expected = get_req_bin(vars, "Out");
+         const size_t block_size = get_req_sz(vars, "Blocksize");
+
+         Test::Result result(algo);
+
+         std::unique_ptr<Botan::BlockCipherModePaddingMethod> pad(Botan::get_bc_pad(algo));
+
+         if(!pad)
+            {
+            result.test_failure("Invalid padding method: " + algo);
+            return result;
+            }
+
+         Botan::secure_vector<uint8_t> buf(input.begin(), input.end());
+         pad->add_padding(buf, input.size() % block_size, block_size);
+         result.test_eq("pad", buf, expected);
+
+         buf.assign(expected.begin(), expected.end());
+
+         const size_t last_block = ( buf.size() < block_size ) ? 0 : buf.size() - block_size;
+         const size_t pad_bytes = block_size - pad->unpad(&buf[last_block], block_size);
+         buf.resize(buf.size() - pad_bytes); // remove padding
+         result.test_eq("unpad", buf, input);
+
+         return result;
+         }
+   };
+
+BOTAN_REGISTER_TEST("bc-padding", Cipher_Mode_Padding_Tests);
+
+#endif
+
+}