diff options
Diffstat (limited to 'src/tests/test_modes.cpp')
| -rw-r--r-- | src/tests/test_modes.cpp | 180 |
1 files changed, 179 insertions, 1 deletions
diff --git a/src/tests/test_modes.cpp b/src/tests/test_modes.cpp index 74b04f7ac..015aafa16 100644 --- a/src/tests/test_modes.cpp +++ b/src/tests/test_modes.cpp @@ -1,5 +1,5 @@ /* -* (C) 2014,2015 Jack Lloyd +* (C) 2014,2015,2017 Jack Lloyd * (C) 2016 Daniel Neus, Rohde & Schwarz Cybersecurity * * Botan is released under the Simplified BSD License (see license.txt) @@ -151,6 +151,184 @@ class Cipher_Mode_Tests : public Text_Based_Test BOTAN_REGISTER_TEST("modes", Cipher_Mode_Tests); +class Cipher_Mode_IV_Carry_Tests : public Test + { + public: + std::vector<Test::Result> run() override + { + std::vector<Test::Result> results; + results.push_back(test_cbc_iv_carry()); + results.push_back(test_cfb_iv_carry()); + results.push_back(test_ctr_iv_carry()); + return results; + } + + private: + Test::Result test_cbc_iv_carry() + { + Test::Result result("CBC IV carry"); + +#if defined(BOTAN_HAS_MODE_CBC) && defined(BOTAN_HAS_AES) + std::unique_ptr<Botan::Cipher_Mode> enc( + Botan::get_cipher_mode("AES-128/CBC/PKCS7", Botan::ENCRYPTION)); + std::unique_ptr<Botan::Cipher_Mode> dec( + Botan::get_cipher_mode("AES-128/CBC/PKCS7", Botan::DECRYPTION)); + + const std::vector<uint8_t> key(16, 0xAA); + const std::vector<uint8_t> iv(16, 0xAA); + + Botan::secure_vector<uint8_t> msg1 = + Botan::hex_decode_locked("446F6E27742075736520706C61696E20434243206D6F6465"); + Botan::secure_vector<uint8_t> msg2 = + Botan::hex_decode_locked("49562063617272796F766572"); + Botan::secure_vector<uint8_t> msg3 = + Botan::hex_decode_locked("49562063617272796F76657232"); + + enc->set_key(key); + dec->set_key(key); + + enc->start(iv); + enc->finish(msg1); + result.test_eq("First ciphertext", msg1, + "9BDD7300E0CB61CA71FFF957A71605DB6836159C36781246A1ADF50982757F4B"); + + enc->start(); + enc->finish(msg2); + + result.test_eq("Second ciphertext", msg2, + "AA8D682958A4A044735DAC502B274DB2"); + + enc->start(); + enc->finish(msg3); + + result.test_eq("Third ciphertext", msg3, + "1241B9976F73051BCF809525D6E86C25"); + + dec->start(iv); + dec->finish(msg1); + + dec->start(); + dec->finish(msg2); + + dec->start(); + dec->finish(msg3); + result.test_eq("Third plaintext", msg3, "49562063617272796F76657232"); + +#endif + return result; + } + + Test::Result test_cfb_iv_carry() + { + Test::Result result("CFB IV carry"); +#if defined(BOTAN_HAS_MODE_CFB) && defined(BOTAN_HAS_AES) + std::unique_ptr<Botan::Cipher_Mode> enc( + Botan::get_cipher_mode("AES-128/CFB(8)", Botan::ENCRYPTION)); + std::unique_ptr<Botan::Cipher_Mode> dec( + Botan::get_cipher_mode("AES-128/CFB(8)", Botan::DECRYPTION)); + + const std::vector<uint8_t> key(16, 0xAA); + const std::vector<uint8_t> iv(16, 0xAB); + + Botan::secure_vector<uint8_t> msg1 = Botan::hex_decode_locked("ABCDEF01234567"); + Botan::secure_vector<uint8_t> msg2 = Botan::hex_decode_locked("0000123456ABCDEF"); + Botan::secure_vector<uint8_t> msg3 = Botan::hex_decode_locked("012345"); + + enc->set_key(key); + dec->set_key(key); + + enc->start(iv); + enc->finish(msg1); + result.test_eq("First ciphertext", msg1, "a51522387c4c9b"); + + enc->start(); + enc->finish(msg2); + + result.test_eq("Second ciphertext", msg2, "105457dc2e0649d4"); + + enc->start(); + enc->finish(msg3); + + result.test_eq("Third ciphertext", msg3, "53bd65"); + + dec->start(iv); + dec->finish(msg1); + result.test_eq("First plaintext", msg1, "ABCDEF01234567"); + + dec->start(); + dec->finish(msg2); + result.test_eq("Second plaintext", msg2, "0000123456ABCDEF"); + + dec->start(); + dec->finish(msg3); + result.test_eq("Third plaintext", msg3, "012345"); +#endif + return result; + } + + Test::Result test_ctr_iv_carry() + { + Test::Result result("CTR IV carry"); +#if defined(BOTAN_HAS_CTR_BE) && defined(BOTAN_HAS_AES) + + std::unique_ptr<Botan::Cipher_Mode> enc( + Botan::get_cipher_mode("AES-128/CTR-BE", Botan::ENCRYPTION)); + std::unique_ptr<Botan::Cipher_Mode> dec( + Botan::get_cipher_mode("AES-128/CTR-BE", Botan::DECRYPTION)); + + const std::vector<uint8_t> key = + Botan::hex_decode("2B7E151628AED2A6ABF7158809CF4F3C"); + const std::vector<uint8_t> iv = + Botan::hex_decode("F0F1F2F3F4F5F6F7F8F9FAFBFCFDFEFF"); + + enc->set_key(key); + dec->set_key(key); + + const std::vector<std::string> exp_ciphertext = { + "EC", + "8CDF", + "739860", + "7CB0F2D2", + "1675EA9EA1", + "E4362B7C3C67", + "73516318A077D7", + "FC5073AE6A2CC378", + "7889374FBEB4C81B17", + "BA6C44E89C399FF0F198C", + }; + + for(size_t i = 1; i != 10; ++i) + { + if(i == 1) + { + enc->start(iv); + dec->start(iv); + } + else + { + enc->start(); + dec->start(); + } + + Botan::secure_vector<uint8_t> msg(i, 0); + enc->finish(msg); + + result.test_eq("Ciphertext", msg, exp_ciphertext[i-1].c_str()); + + dec->finish(msg); + + for(size_t i = 0; i != msg.size(); ++i) + result.test_eq("Plaintext zeros", static_cast<size_t>(msg[i]), 0); + + } +#endif + return result; + } + }; + + +BOTAN_REGISTER_TEST("iv_carryover", Cipher_Mode_IV_Carry_Tests); + #endif } |