szaszm commented on a change in pull request #1090: URL: https://github.com/apache/nifi-minifi-cpp/pull/1090#discussion_r664556602
########## File path: libminifi/src/utils/crypto/ciphers/Aes256Ecb.cpp ########## @@ -0,0 +1,122 @@ +/** + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "utils/crypto/ciphers/Aes256Ecb.h" +#include "openssl/conf.h" +#include "openssl/evp.h" +#include "openssl/err.h" +#include "openssl/rand.h" +#include "core/logging/LoggerConfiguration.h" + +namespace org { +namespace apache { +namespace nifi { +namespace minifi { +namespace utils { +namespace crypto { + +using EVP_CIPHER_CTX_ptr = std::unique_ptr<EVP_CIPHER_CTX, decltype(&EVP_CIPHER_CTX_free)>; + +std::shared_ptr<core::logging::Logger> Aes256EcbCipher::logger_{core::logging::LoggerFactory<Aes256EcbCipher>::getLogger()}; + +Aes256EcbCipher::Aes256EcbCipher(Bytes encryption_key) : encryption_key_(std::move(encryption_key)) { + if (encryption_key_.size() != KEY_SIZE) { + handleError("Invalid key length %zu bytes, expected %zu bytes", encryption_key_.size(), static_cast<size_t>(KEY_SIZE)); + } +} + +Bytes Aes256EcbCipher::generateKey() { + unsigned char key[KEY_SIZE]; + if (1 != RAND_bytes(key, KEY_SIZE)) { + handleError("Couldn't generate key"); + } + return Bytes(key, key + KEY_SIZE); +} + +void Aes256EcbCipher::encrypt(unsigned char *data) const { + EVP_CIPHER_CTX_ptr ctx(EVP_CIPHER_CTX_new(), EVP_CIPHER_CTX_free); + if (!ctx) { + handleError("Could not create cipher context"); + } + + if (1 != EVP_EncryptInit_ex(ctx.get(), EVP_aes_256_ecb(), nullptr, encryption_key_.data(), nullptr)) { Review comment: I've found CTREncryptionProvider in the rocksdb code, but couldn't find where we specify that we use it in this PR. Is it always used with rocksdb? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@nifi.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
