Secure settings rework
This commit is contained in:
pokamest
parent
42398950e4
commit
b5890340e3
21 changed files with 1863 additions and 223 deletions
364
client/3rd/QSimpleCrypto/sources/QAead.cpp
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364
client/3rd/QSimpleCrypto/sources/QAead.cpp
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/**
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* Copyright 2021 BrutalWizard (https://github.com/bru74lw1z4rd). All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution
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**/
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#include "include/QAead.h"
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QSimpleCrypto::QAead::QAead()
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{
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}
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///
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/// \brief QSimpleCrypto::QAEAD::encryptAesGcm - Function encrypts data with Gcm algorithm.
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/// \param data - Data that will be encrypted.
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/// \param key - AES key.
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/// \param iv - Initialization vector.
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/// \param tag - Authorization tag.
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/// \param aad - Additional authenticated data. Must be nullptr, if not used.
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/// \param cipher - Can be used with OpenSSL EVP_CIPHER (gcm) - 128, 192, 256. Example: EVP_aes_256_gcm().
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/// \return Returns encrypted data or "", if error happened.
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///
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QByteArray QSimpleCrypto::QAead::encryptAesGcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad, const EVP_CIPHER* cipher)
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{
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try {
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/* Initialize EVP_CIPHER_CTX */
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std::unique_ptr<EVP_CIPHER_CTX, void (*)(EVP_CIPHER_CTX*)> encryptionCipher { EVP_CIPHER_CTX_new(), EVP_CIPHER_CTX_free };
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if (encryptionCipher == nullptr) {
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throw std::runtime_error("Couldn't initialize \'encryptionCipher\'. EVP_CIPHER_CTX_new(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set data length */
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int plainTextLength = data.size();
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int cipherTextLength = 0;
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/* Initialize cipherText. Here encrypted data will be stored */
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std::unique_ptr<unsigned char[]> cipherText { new unsigned char[plainTextLength]() };
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if (cipherText == nullptr) {
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throw std::runtime_error("Couldn't allocate memory for 'ciphertext'.");
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}
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/* Initialize encryption operation. */
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if (!EVP_EncryptInit_ex(encryptionCipher.get(), cipher, nullptr, reinterpret_cast<unsigned char*>(key.data()), reinterpret_cast<unsigned char*>(iv.data()))) {
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throw std::runtime_error("Couldn't initialize encryption operation. EVP_EncryptInit_ex(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set IV length if default 12 bytes (96 bits) is not appropriate */
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if (!EVP_CIPHER_CTX_ctrl(encryptionCipher.get(), EVP_CTRL_GCM_SET_IVLEN, iv.length(), nullptr)) {
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throw std::runtime_error("Couldn't set IV length. EVP_CIPHER_CTX_ctrl(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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// /* Check if aad need to be used */
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// if (aad.length() > 0) {
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// /* Provide any AAD data. This can be called zero or more times as required */
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// if (!EVP_EncryptUpdate(encryptionCipher.get(), nullptr, &cipherTextLength, reinterpret_cast<unsigned char*>(aad.data()), aad.length())) {
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// throw std::runtime_error("Couldn't provide aad data. EVP_EncryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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// }
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// }
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/*
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* Provide the message to be encrypted, and obtain the encrypted output.
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* EVP_EncryptUpdate can be called multiple times if necessary
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*/
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if (!EVP_EncryptUpdate(encryptionCipher.get(), cipherText.get(), &cipherTextLength, reinterpret_cast<const unsigned char*>(data.data()), plainTextLength)) {
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throw std::runtime_error("Couldn't provide message to be encrypted. EVP_EncryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/*
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* Finalize the encryption. Normally cipher text bytes may be written at
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* this stage, but this does not occur in GCM mode
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*/
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if (!EVP_EncryptFinal_ex(encryptionCipher.get(), cipherText.get(), &plainTextLength)) {
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throw std::runtime_error("Couldn't finalize encryption. EVP_EncryptFinal_ex(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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// /* Get tag */
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// if (!EVP_CIPHER_CTX_ctrl(encryptionCipher.get(), EVP_CTRL_GCM_GET_TAG, tag->length(), reinterpret_cast<unsigned char*>(tag->data()))) {
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// throw std::runtime_error("Couldn't get tag. EVP_CIPHER_CTX_ctrl(. Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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// }
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/* Finilize data to be readable with qt */
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QByteArray encryptedData = QByteArray(reinterpret_cast<char*>(cipherText.get()), cipherTextLength);
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return encryptedData;
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} catch (std::exception& exception) {
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QSimpleCrypto::QAead::error.setError(1, exception.what());
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return QByteArray();
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} catch (...) {
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QSimpleCrypto::QAead::error.setError(2, "Unknown error!");
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return QByteArray();
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}
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return QByteArray();
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}
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///
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/// \brief QSimpleCrypto::QAEAD::decryptAesGcm - Function decrypts data with Gcm algorithm.
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/// \param data - Data that will be decrypted
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/// \param key - AES key
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/// \param iv - Initialization vector
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/// \param tag - Authorization tag
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/// \param aad - Additional authenticated data. Must be nullptr, if not used
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/// \param cipher - Can be used with OpenSSL EVP_CIPHER (gcm) - 128, 192, 256. Example: EVP_aes_256_gcm()
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/// \return Returns decrypted data or "", if error happened.
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///
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QByteArray QSimpleCrypto::QAead::decryptAesGcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad, const EVP_CIPHER* cipher)
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{
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try {
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/* Initialize EVP_CIPHER_CTX */
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std::unique_ptr<EVP_CIPHER_CTX, void (*)(EVP_CIPHER_CTX*)> decryptionCipher { EVP_CIPHER_CTX_new(), EVP_CIPHER_CTX_free };
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if (decryptionCipher.get() == nullptr) {
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throw std::runtime_error("Couldn't initialize \'decryptionCipher\'. EVP_CIPHER_CTX_new(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set data length */
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int cipherTextLength = data.size();
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int plainTextLength = 0;
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/* Initialize plainText. Here decrypted data will be stored */
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std::unique_ptr<unsigned char[]> plainText { new unsigned char[cipherTextLength]() };
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if (plainText == nullptr) {
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throw std::runtime_error("Couldn't allocate memory for 'plaintext'.");
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}
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/* Initialize decryption operation. */
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if (!EVP_DecryptInit_ex(decryptionCipher.get(), cipher, nullptr, reinterpret_cast<unsigned char*>(key.data()), reinterpret_cast<unsigned char*>(iv.data()))) {
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throw std::runtime_error("Couldn't initialize decryption operation. EVP_DecryptInit_ex(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set IV length. Not necessary if this is 12 bytes (96 bits) */
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if (!EVP_CIPHER_CTX_ctrl(decryptionCipher.get(), EVP_CTRL_GCM_SET_IVLEN, iv.length(), nullptr)) {
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throw std::runtime_error("Couldn't set IV length. EVP_CIPHER_CTX_ctrl(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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// /* Check if aad need to be used */
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// if (aad.length() > 0) {
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// /* Provide any AAD data. This can be called zero or more times as required */
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// if (!EVP_DecryptUpdate(decryptionCipher.get(), nullptr, &plainTextLength, reinterpret_cast<unsigned char*>(aad.data()), aad.length())) {
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// throw std::runtime_error("Couldn't provide aad data. EVP_DecryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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// }
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// }
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/*
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* Provide the message to be decrypted, and obtain the plain text output.
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* EVP_DecryptUpdate can be called multiple times if necessary
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*/
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if (!EVP_DecryptUpdate(decryptionCipher.get(), plainText.get(), &plainTextLength, reinterpret_cast<const unsigned char*>(data.data()), cipherTextLength)) {
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throw std::runtime_error("Couldn't provide message to be decrypted. EVP_DecryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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// /* Set expected tag value. Works in OpenSSL 1.0.1d and later */
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// if (!EVP_CIPHER_CTX_ctrl(decryptionCipher.get(), EVP_CTRL_GCM_SET_TAG, tag->length(), reinterpret_cast<unsigned char*>(tag->data()))) {
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// throw std::runtime_error("Coldn't set tag. EVP_CIPHER_CTX_ctrl(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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// }
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/*
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* Finalize the decryption. A positive return value indicates success,
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* anything else is a failure - the plain text is not trustworthy.
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*/
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if (!EVP_DecryptFinal_ex(decryptionCipher.get(), plainText.get(), &cipherTextLength)) {
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throw std::runtime_error("Couldn't finalize decryption. EVP_DecryptFinal_ex(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Finilize data to be readable with qt */
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QByteArray decryptedData = QByteArray(reinterpret_cast<char*>(plainText.get()), plainTextLength);
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return decryptedData;
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} catch (std::exception& exception) {
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QSimpleCrypto::QAead::error.setError(1, exception.what());
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return QByteArray();
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} catch (...) {
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QSimpleCrypto::QAead::error.setError(2, "Unknown error!");
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return QByteArray();
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}
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return QByteArray();
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}
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///
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/// \brief QSimpleCrypto::QAEAD::encryptAesCcm - Function encrypts data with Ccm algorithm.
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/// \param data - Data that will be encrypted.
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/// \param key - AES key.
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/// \param iv - Initialization vector.
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/// \param tag - Authorization tag.
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/// \param aad - Additional authenticated data. Must be nullptr, if not used.
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/// \param cipher - Can be used with OpenSSL EVP_CIPHER (ccm) - 128, 192, 256. Example: EVP_aes_256_ccm().
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/// \return Returns encrypted data or "", if error happened.
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///
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QByteArray QSimpleCrypto::QAead::encryptAesCcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad, const EVP_CIPHER* cipher)
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{
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try {
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/* Initialize EVP_CIPHER_CTX */
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std::unique_ptr<EVP_CIPHER_CTX, void (*)(EVP_CIPHER_CTX*)> encryptionCipher { EVP_CIPHER_CTX_new(), EVP_CIPHER_CTX_free };
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if (encryptionCipher == nullptr) {
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throw std::runtime_error("Couldn't initialize \'encryptionCipher\'. EVP_CIPHER_CTX_new(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set data length */
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int plainTextLength = data.size();
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int cipherTextLength = 0;
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/* Initialize cipherText. Here encrypted data will be stored */
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std::unique_ptr<unsigned char[]> cipherText { new unsigned char[plainTextLength]() };
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if (cipherText.get() == nullptr) {
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throw std::runtime_error("Couldn't allocate memory for 'ciphertext'.");
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}
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/* Initialize encryption operation. */
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if (!EVP_EncryptInit_ex(encryptionCipher.get(), cipher, nullptr, reinterpret_cast<unsigned char*>(key.data()), reinterpret_cast<unsigned char*>(iv.data()))) {
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throw std::runtime_error("Couldn't initialize encryption operation. EVP_EncryptInit_ex(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set IV length if default 12 bytes (96 bits) is not appropriate */
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if (!EVP_CIPHER_CTX_ctrl(encryptionCipher.get(), EVP_CTRL_CCM_SET_IVLEN, iv.length(), nullptr)) {
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throw std::runtime_error("Couldn't set IV length. EVP_CIPHER_CTX_ctrl(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set tag length */
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if (!EVP_CIPHER_CTX_ctrl(encryptionCipher.get(), EVP_CTRL_CCM_SET_TAG, tag->length(), nullptr)) {
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throw std::runtime_error("Coldn't set tag. EVP_CIPHER_CTX_ctrl(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Check if aad need to be used */
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if (aad.length() > 0) {
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/* Provide the total plain text length */
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if (!EVP_EncryptUpdate(encryptionCipher.get(), nullptr, &cipherTextLength, nullptr, plainTextLength)) {
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throw std::runtime_error("Couldn't provide total plaintext length. EVP_EncryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Provide any AAD data. This can be called zero or more times as required */
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if (!EVP_EncryptUpdate(encryptionCipher.get(), nullptr, &cipherTextLength, reinterpret_cast<unsigned char*>(aad.data()), aad.length())) {
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throw std::runtime_error("Couldn't provide aad data. EVP_EncryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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}
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/*
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* Provide the message to be encrypted, and obtain the encrypted output.
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* EVP_EncryptUpdate can be called multiple times if necessary
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*/
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if (!EVP_EncryptUpdate(encryptionCipher.get(), cipherText.get(), &cipherTextLength, reinterpret_cast<const unsigned char*>(data.data()), plainTextLength)) {
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throw std::runtime_error("Couldn't provide message to be encrypted. EVP_EncryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/*
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* Finalize the encryption. Normally ciphertext bytes may be written at
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* this stage, but this does not occur in GCM mode
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*/
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if (!EVP_EncryptFinal_ex(encryptionCipher.get(), cipherText.get(), &plainTextLength)) {
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throw std::runtime_error("Couldn't finalize encryption. EVP_EncryptFinal_ex(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Get tag */
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if (!EVP_CIPHER_CTX_ctrl(encryptionCipher.get(), EVP_CTRL_CCM_GET_TAG, tag->length(), reinterpret_cast<unsigned char*>(tag->data()))) {
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throw std::runtime_error("Couldn't get tag. EVP_CIPHER_CTX_ctrl(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Finilize data to be readable with qt */
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QByteArray encryptedData = QByteArray(reinterpret_cast<char*>(cipherText.get()), cipherTextLength);
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return encryptedData;
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} catch (std::exception& exception) {
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QSimpleCrypto::QAead::error.setError(1, exception.what());
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return QByteArray();
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} catch (...) {
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QSimpleCrypto::QAead::error.setError(2, "Unknown error!");
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return QByteArray();
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}
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return QByteArray();
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}
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///
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/// \brief QSimpleCrypto::QAEAD::decryptAesCcm - Function decrypts data with Ccm algorithm.
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/// \param data - Data that will be decrypted.
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/// \param key - AES key.
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/// \param iv - Initialization vector.
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/// \param tag - Authorization tag.
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/// \param aad - Additional authenticated data. Must be nullptr, if not used.
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/// \param cipher - Can be used with OpenSSL EVP_CIPHER (ccm) - 128, 192, 256. Example: EVP_aes_256_ccm().
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/// \return Returns decrypted data or "", if error happened.
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///
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QByteArray QSimpleCrypto::QAead::decryptAesCcm(QByteArray data, QByteArray key, QByteArray iv, QByteArray* tag, QByteArray aad, const EVP_CIPHER* cipher)
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{
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try {
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/* Initialize EVP_CIPHER_CTX */
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std::unique_ptr<EVP_CIPHER_CTX, void (*)(EVP_CIPHER_CTX*)> decryptionCipher { EVP_CIPHER_CTX_new(), EVP_CIPHER_CTX_free };
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if (decryptionCipher.get() == nullptr) {
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throw std::runtime_error("Couldn't initialize \'decryptionCipher\'. EVP_CIPHER_CTX_new(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set data length */
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int cipherTextLength = data.size();
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int plainTextLength = 0;
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/* Initialize plainText. Here decrypted data will be stored */
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std::unique_ptr<unsigned char[]> plainText { new unsigned char[cipherTextLength]() };
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if (plainText == nullptr) {
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throw std::runtime_error("Couldn't allocate memory for 'plaintext'.");
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}
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/* Initialize decryption operation. */
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if (!EVP_DecryptInit_ex(decryptionCipher.get(), cipher, nullptr, reinterpret_cast<unsigned char*>(key.data()), reinterpret_cast<unsigned char*>(iv.data()))) {
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throw std::runtime_error("Couldn't initialize decryption operation. EVP_DecryptInit_ex(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set IV length. Not necessary if this is 12 bytes (96 bits) */
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if (!EVP_CIPHER_CTX_ctrl(decryptionCipher.get(), EVP_CTRL_CCM_SET_IVLEN, iv.length(), nullptr)) {
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throw std::runtime_error("Couldn't set IV length. EVP_CIPHER_CTX_ctrl(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Set expected tag value. Works in OpenSSL 1.0.1d and later */
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if (!EVP_CIPHER_CTX_ctrl(decryptionCipher.get(), EVP_CTRL_CCM_SET_TAG, tag->length(), reinterpret_cast<unsigned char*>(tag->data()))) {
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throw std::runtime_error("Coldn't set tag. EVP_CIPHER_CTX_ctrl(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Check if aad need to be used */
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if (aad.length() > 0) {
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/* Provide the total ciphertext length */
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if (!EVP_DecryptUpdate(decryptionCipher.get(), nullptr, &plainTextLength, nullptr, cipherTextLength)) {
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throw std::runtime_error("Couldn't provide total plaintext length. EVP_DecryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/* Provide any AAD data. This can be called zero or more times as required */
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if (!EVP_DecryptUpdate(decryptionCipher.get(), nullptr, &plainTextLength, reinterpret_cast<unsigned char*>(aad.data()), aad.length())) {
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throw std::runtime_error("Couldn't provide aad data. EVP_DecryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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}
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/*
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* Provide the message to be decrypted, and obtain the plaintext output.
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* EVP_DecryptUpdate can be called multiple times if necessary
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*/
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if (!EVP_DecryptUpdate(decryptionCipher.get(), plainText.get(), &plainTextLength, reinterpret_cast<const unsigned char*>(data.data()), cipherTextLength)) {
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throw std::runtime_error("Couldn't provide message to be decrypted. EVP_DecryptUpdate(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
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/*
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* Finalize the decryption. A positive return value indicates success,
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* anything else is a failure - the plaintext is not trustworthy.
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*/
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if (!EVP_DecryptFinal_ex(decryptionCipher.get(), plainText.get(), &cipherTextLength)) {
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throw std::runtime_error("Couldn't finalize decryption. EVP_DecryptFinal_ex(). Error: " + QByteArray(ERR_error_string(ERR_get_error(), nullptr)));
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}
|
||||
|
||||
/* Finilize data to be readable with qt */
|
||||
QByteArray decryptedData = QByteArray(reinterpret_cast<char*>(plainText.get()), plainTextLength);
|
||||
|
||||
return decryptedData;
|
||||
|
||||
} catch (std::exception& exception) {
|
||||
QSimpleCrypto::QAead::error.setError(1, exception.what());
|
||||
return QByteArray();
|
||||
} catch (...) {
|
||||
QSimpleCrypto::QAead::error.setError(2, "Unknown error!");
|
||||
return QByteArray();
|
||||
}
|
||||
|
||||
return QByteArray();
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue