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f8fb9e2d03
This prevents the IOS crypto code and keys from being spread over the codebase. Things only have to be implemented once, and can be used everywhere from the IOS code. Additionally, since ES exposes some IOSC calls directly (DeleteObject and Encrypt/Decrypt), we need this for proper emulation. Currently, this only supports AES key objects.
40 lines
996 B
C++
40 lines
996 B
C++
// Copyright 2017 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <mbedtls/aes.h>
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#include "Common/Crypto/AES.h"
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namespace Common
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{
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namespace AES
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{
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std::vector<u8> DecryptEncrypt(const u8* key, u8* iv, const u8* src, size_t size, Mode mode)
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{
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mbedtls_aes_context aes_ctx;
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std::vector<u8> buffer(size);
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if (mode == Mode::Encrypt)
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mbedtls_aes_setkey_enc(&aes_ctx, key, 128);
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else
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mbedtls_aes_setkey_dec(&aes_ctx, key, 128);
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mbedtls_aes_crypt_cbc(&aes_ctx, mode == Mode::Encrypt ? MBEDTLS_AES_ENCRYPT : MBEDTLS_AES_DECRYPT,
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size, iv, src, buffer.data());
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return buffer;
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}
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std::vector<u8> Decrypt(const u8* key, u8* iv, const u8* src, size_t size)
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{
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return DecryptEncrypt(key, iv, src, size, Mode::Decrypt);
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}
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std::vector<u8> Encrypt(const u8* key, u8* iv, const u8* src, size_t size)
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{
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return DecryptEncrypt(key, iv, src, size, Mode::Encrypt);
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}
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} // namespace AES
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} // namespace Common
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