diff options
Diffstat (limited to '')
-rw-r--r-- | utils/aes_decrypt_block.cpp | 98 |
1 files changed, 56 insertions, 42 deletions
diff --git a/utils/aes_decrypt_block.cpp b/utils/aes_decrypt_block.cpp index bab5f50..0f41b47 100644 --- a/utils/aes_decrypt_block.cpp +++ b/utils/aes_decrypt_block.cpp @@ -25,48 +25,48 @@ namespace std::deque<std::string>& ciphertexts, bool verbose = false) { - typename aesni::aes::Types<algorithm>::BlockT iv; + typename aesni::Types<algorithm>::Block iv; if (aesni::ModeRequiresInitializationVector<mode>()) { if (ciphertexts.empty()) return false; - aesni::aes::from_string(iv, ciphertexts.front()); + aesni::from_string<algorithm>(iv, ciphertexts.front()); ciphertexts.pop_front(); if (verbose) - dump_iv(iv); + dump_iv<algorithm>(iv); } - typename aesni::aes::Types<algorithm>::KeyT key; - aesni::aes::from_string(key, key_str); + typename aesni::Types<algorithm>::Key key; + aesni::from_string<algorithm>(key, key_str); if (verbose) - dump_key(key); + dump_key<algorithm>(key); - aesni::aes::Encrypt<algorithm, mode> encrypt(key, iv); + aesni::DecryptWrapper<algorithm, mode> decrypt(key, iv); if (verbose) - Dumper<algorithm, mode>::dump_round_keys(encrypt); + dump_wrapper<algorithm, mode>(decrypt); while (!ciphertexts.empty()) { - typename aesni::aes::Types<algorithm>::BlockT ciphertext; - aesni::aes::from_string(ciphertext, ciphertexts.front()); + typename aesni::Types<algorithm>::Block ciphertext, plaintext; + aesni::from_string<algorithm>(ciphertext, ciphertexts.front()); ciphertexts.pop_front(); - const auto plaintext = encrypt.decrypt(ciphertext); + decrypt.decrypt_block(ciphertext, plaintext); if (verbose) { - dump_ciphertext(ciphertext); - dump_plaintext(plaintext); - Dumper<algorithm, mode>::dump_next_iv(encrypt); + dump_ciphertext<algorithm>(ciphertext); + dump_plaintext<algorithm>(plaintext); + dump_next_iv<algorithm, mode>(decrypt); } else { - std::cout << aesni::aes::to_string(plaintext) << "\n"; + std::cout << aesni::to_string<algorithm>(plaintext) << "\n"; } } @@ -102,7 +102,7 @@ namespace } } - bool decrypt( + bool decrypt_using_cxx_api( aesni::Algorithm algorithm, aesni::Mode mode, const std::string& key_str, @@ -125,32 +125,13 @@ namespace } } - bool decrypt_using_boxes( - aesni::Algorithm algorithm, + template <aesni::Algorithm algorithm> + bool decrypt_using_boxes_with_algorithm( + const AesNI_BoxAlgorithmParams& algorithm_params, aesni::Mode mode, const std::string& key, std::deque<std::string> ciphertexts) { - AesNI_BoxAlgorithmParams algorithm_params; - - switch (algorithm) - { - case AESNI_AES128: - aesni::aes::from_string(algorithm_params.aes128_key, key); - break; - - case AESNI_AES192: - aesni::aes::from_string(algorithm_params.aes192_key, key); - break; - - case AESNI_AES256: - aesni::aes::from_string(algorithm_params.aes256_key, key); - break; - - default: - return false; - } - AesNI_BoxBlock iv; AesNI_BoxBlock* iv_ptr = nullptr; @@ -159,7 +140,7 @@ namespace if (ciphertexts.empty()) return false; - aesni::aes::from_string(iv.aes_block, ciphertexts.front()); + aesni::from_string<algorithm>(iv.aes_block, ciphertexts.front()); iv_ptr = &iv; ciphertexts.pop_front(); } @@ -176,7 +157,7 @@ namespace while (!ciphertexts.empty()) { AesNI_BoxBlock ciphertext; - aesni::aes::from_string(ciphertext.aes_block, ciphertexts.front()); + aesni::from_string<algorithm>(ciphertext.aes_block, ciphertexts.front()); ciphertexts.pop_front(); AesNI_BoxBlock plaintext; @@ -186,11 +167,44 @@ namespace &plaintext, aesni::ErrorDetailsThrowsInDestructor()); - std::cout << aesni::aes::to_string(plaintext.aes_block) << "\n"; + std::cout << aesni::to_string<algorithm>(plaintext.aes_block) << "\n"; } return true; } + + bool decrypt_using_boxes( + aesni::Algorithm algorithm, + aesni::Mode mode, + const std::string& key, + std::deque<std::string> ciphertexts) + { + AesNI_BoxAlgorithmParams algorithm_params; + + switch (algorithm) + { + case AESNI_AES128: + aesni::from_string<AESNI_AES128>( + algorithm_params.aes128_key, key); + return decrypt_using_boxes_with_algorithm<AESNI_AES128>( + algorithm_params, mode, key, ciphertexts); + + case AESNI_AES192: + aesni::from_string<AESNI_AES192>( + algorithm_params.aes192_key, key); + return decrypt_using_boxes_with_algorithm<AESNI_AES192>( + algorithm_params, mode, key, ciphertexts); + + case AESNI_AES256: + aesni::from_string<AESNI_AES256>( + algorithm_params.aes256_key, key); + return decrypt_using_boxes_with_algorithm<AESNI_AES256>( + algorithm_params, mode, key, ciphertexts); + + default: + return false; + } + } } int main(int argc, char** argv) @@ -228,7 +242,7 @@ int main(int argc, char** argv) const auto success = cmd_parser.use_boxes() ? decrypt_using_boxes(algorithm, mode, key, ciphertexts) - : decrypt(algorithm, mode, key, ciphertexts, cmd_parser.verbose()); + : decrypt_using_cxx_api(algorithm, mode, key, ciphertexts, cmd_parser.verbose()); if (!success) { |