From 76652ac3cad64dbc2fd54e976ce4bad0a37caa03 Mon Sep 17 00:00:00 2001 From: Jarred Sumner Date: Sun, 23 Oct 2022 20:25:18 -0700 Subject: Add Web Crypto API (#1384) * Add Web Crypto API * Duplicate symbols * Update c_cpp_properties.json Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com> --- .../webcrypto/CryptoAlgorithmAES_CBCOpenSSL.cpp | 138 +++++++++++++++++++++ 1 file changed, 138 insertions(+) create mode 100644 src/bun.js/bindings/webcrypto/CryptoAlgorithmAES_CBCOpenSSL.cpp (limited to 'src/bun.js/bindings/webcrypto/CryptoAlgorithmAES_CBCOpenSSL.cpp') diff --git a/src/bun.js/bindings/webcrypto/CryptoAlgorithmAES_CBCOpenSSL.cpp b/src/bun.js/bindings/webcrypto/CryptoAlgorithmAES_CBCOpenSSL.cpp new file mode 100644 index 000000000..c271c067f --- /dev/null +++ b/src/bun.js/bindings/webcrypto/CryptoAlgorithmAES_CBCOpenSSL.cpp @@ -0,0 +1,138 @@ +/* + * Copyright (C) 2020 Sony Interactive Entertainment Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "config.h" +#include "CryptoAlgorithmAES_CBC.h" + +#if ENABLE(WEB_CRYPTO) + +#include "CryptoAlgorithmAesCbcCfbParams.h" +#include "CryptoKeyAES.h" +#include "OpenSSLCryptoUniquePtr.h" +#include + +namespace WebCore { + +static const EVP_CIPHER* aesAlgorithm(size_t keySize) +{ + if (keySize * 8 == 128) + return EVP_aes_128_cbc(); + + if (keySize * 8 == 192) + return EVP_aes_192_cbc(); + + if (keySize * 8 == 256) + return EVP_aes_256_cbc(); + + return nullptr; +} + +static std::optional> cryptEncrypt(const Vector& key, const Vector& iv, Vector&& plainText) +{ + const EVP_CIPHER* algorithm = aesAlgorithm(key.size()); + if (!algorithm) + return std::nullopt; + + EvpCipherCtxPtr ctx; + int len; + + // Create and initialize the context + if (!(ctx = EvpCipherCtxPtr(EVP_CIPHER_CTX_new()))) + return std::nullopt; + + size_t plainSize = plainText.size(); + const size_t cipherTextLen = roundUpToMultipleOf(EVP_CIPHER_block_size(algorithm), plainSize + 1); + Vector cipherText(cipherTextLen); + + // Initialize the encryption operation + if (1 != EVP_EncryptInit_ex(ctx.get(), algorithm, nullptr, key.data(), iv.data())) + return std::nullopt; + + // Provide the message to be encrypted, and obtain the encrypted output + if (1 != EVP_EncryptUpdate(ctx.get(), cipherText.data(), &len, plainText.data(), plainSize)) + return std::nullopt; + + // Finalize the encryption. Further ciphertext bytes may be written at this stage + if (1 != EVP_EncryptFinal_ex(ctx.get(), cipherText.data() + len, &len)) + return std::nullopt; + + return cipherText; +} + +static std::optional> cryptDecrypt(const Vector& key, const Vector& iv, const Vector& cipherText) +{ + const EVP_CIPHER* algorithm = aesAlgorithm(key.size()); + if (!algorithm) + return std::nullopt; + + EvpCipherCtxPtr ctx; + + size_t cipherSize = cipherText.size(); + Vector plainText(cipherSize); + int len; + int plainTextLen; + + // Create and initialize the context + if (!(ctx = EvpCipherCtxPtr(EVP_CIPHER_CTX_new()))) + return std::nullopt; + + // Initialize the decryption operation + if (1 != EVP_DecryptInit_ex(ctx.get(), algorithm, nullptr, key.data(), iv.data())) + return std::nullopt; + + // Provide the message to be decrypted, and obtain the plaintext output + if (1 != EVP_DecryptUpdate(ctx.get(), plainText.data(), &len, cipherText.data(), cipherSize)) + return std::nullopt; + plainTextLen = len; + + // Finalize the decryption. Further plaintext bytes may be written at this stage + if (1 != EVP_DecryptFinal_ex(ctx.get(), plainText.data() + len, &len)) + return std::nullopt; + plainTextLen += len; + + plainText.shrink(plainTextLen); + + return plainText; +} + +ExceptionOr> CryptoAlgorithmAES_CBC::platformEncrypt(const CryptoAlgorithmAesCbcCfbParams& parameters, const CryptoKeyAES& key, const Vector& plainText, Padding) +{ + auto output = cryptEncrypt(key.key(), parameters.ivVector(), Vector(plainText)); + if (!output) + return Exception { OperationError }; + return WTFMove(*output); +} + +ExceptionOr> CryptoAlgorithmAES_CBC::platformDecrypt(const CryptoAlgorithmAesCbcCfbParams& parameters, const CryptoKeyAES& key, const Vector& cipherText, Padding) +{ + auto output = cryptDecrypt(key.key(), parameters.ivVector(), cipherText); + if (!output) + return Exception { OperationError }; + return WTFMove(*output); +} + +} // namespace WebCore + +#endif // ENABLE(WEB_CRYPTO) -- cgit v1.2.3