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Merge pull request #3031 from Dragios/cryptopp-weak

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externals: Remove Crypto++ weak algorithm warning
This commit is contained in:
Merry 2017-10-22 18:10:22 +01:00 committed by GitHub
commit 6f5f09b6c2
2 changed files with 16 additions and 9 deletions
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9
src/core/hle/service/nwm/uds_beacon.cpp
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@ -2,6 +2,8 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1
#include <cstring>
#include <cryptopp/aes.h>
#include <cryptopp/md5.h>
@ -204,9 +206,10 @@ std::vector<u8> GeneratedEncryptedData(const NetworkInfo& network_info, const No
}
// Calculate the MD5 hash of the data in the buffer, not including the hash field.
std::array<u8, CryptoPP::MD5::DIGESTSIZE> hash;
CryptoPP::MD5().CalculateDigest(hash.data(), buffer.data() + offsetof(BeaconData, bitmask),
buffer.size() - sizeof(data.md5_hash));
std::array<u8, CryptoPP::Weak::MD5::DIGESTSIZE> hash;
CryptoPP::Weak::MD5().CalculateDigest(hash.data(),
buffer.data() + offsetof(BeaconData, bitmask),
buffer.size() - sizeof(data.md5_hash));
// Copy the hash into the buffer.
std::memcpy(buffer.data(), hash.data(), hash.size());

16
src/core/hle/service/nwm/uds_data.cpp
View File

@ -2,6 +2,8 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#define CRYPTOPP_ENABLE_NAMESPACE_WEAK 1
#include <algorithm>
#include <cstring>
#include <cryptopp/aes.h>
@ -62,7 +64,8 @@ static std::vector<u8> GenerateSecureDataHeader(u16 data_size, u8 channel, u16 d
* the CCMP crypto key for data frames.
* @returns The CTR used for data frames crypto key generation.
*/
static std::array<u8, CryptoPP::MD5::DIGESTSIZE> GetDataCryptoCTR(const NetworkInfo& network_info) {
static std::array<u8, CryptoPP::Weak::MD5::DIGESTSIZE> GetDataCryptoCTR(
const NetworkInfo& network_info) {
DataFrameCryptoCTR data{};
data.host_mac = network_info.host_mac_address;
@ -70,8 +73,8 @@ static std::array<u8, CryptoPP::MD5::DIGESTSIZE> GetDataCryptoCTR(const NetworkI
data.id = network_info.id;
data.network_id = network_info.network_id;
std::array<u8, CryptoPP::MD5::DIGESTSIZE> hash;
CryptoPP::MD5().CalculateDigest(hash.data(), reinterpret_cast<u8*>(&data), sizeof(data));
std::array<u8, CryptoPP::Weak::MD5::DIGESTSIZE> hash;
CryptoPP::Weak::MD5().CalculateDigest(hash.data(), reinterpret_cast<u8*>(&data), sizeof(data));
return hash;
}
@ -83,15 +86,16 @@ static std::array<u8, CryptoPP::MD5::DIGESTSIZE> GetDataCryptoCTR(const NetworkI
static std::array<u8, CryptoPP::AES::BLOCKSIZE> GenerateDataCCMPKey(
const std::vector<u8>& passphrase, const NetworkInfo& network_info) {
// Calculate the MD5 hash of the input passphrase.
std::array<u8, CryptoPP::MD5::DIGESTSIZE> passphrase_hash;
CryptoPP::MD5().CalculateDigest(passphrase_hash.data(), passphrase.data(), passphrase.size());
std::array<u8, CryptoPP::Weak::MD5::DIGESTSIZE> passphrase_hash;
CryptoPP::Weak::MD5().CalculateDigest(passphrase_hash.data(), passphrase.data(),
passphrase.size());
std::array<u8, CryptoPP::AES::BLOCKSIZE> ccmp_key;
// The CCMP key is the result of encrypting the MD5 hash of the passphrase with AES-CTR using
// keyslot 0x2D.
using CryptoPP::AES;
std::array<u8, CryptoPP::MD5::DIGESTSIZE> counter = GetDataCryptoCTR(network_info);
std::array<u8, CryptoPP::Weak::MD5::DIGESTSIZE> counter = GetDataCryptoCTR(network_info);
std::array<u8, AES::BLOCKSIZE> key = HW::AES::GetNormalKey(HW::AES::KeySlotID::UDSDataKey);
CryptoPP::CTR_Mode<AES>::Encryption aes;
aes.SetKeyWithIV(key.data(), AES::BLOCKSIZE, counter.data());