RPCSX/rpcsx
1
0
Fork 0
mirror of https://github.com/RPCSX/rpcsx.git synced 2026-04-07 23:45:12 +00:00
Code Issues Projects Releases Packages Wiki Activity

Validate firmware before installing

Browse source
This commit is contained in:
msuih 2019-10-07 18:04:30 +03:00 • committed by Ivan
parent 925f2ce02f
commit e9ea226e30
4 changed files with 58 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

25
rpcs3/Loader/PUP.cpp
View file

@ -1,5 +1,8 @@
#include "stdafx.h"
#include "Crypto/sha1.h"
#include "Crypto/key_vault.h"
#include "PUP.h"
pup_object::pup_object(const fs::file& file): m_file(file)
@ -10,6 +13,7 @@ pup_object::pup_object(const fs::file& file): m_file(file)
return;
}
m_file.seek(0);
PUPHeader m_header;
m_file.read(m_header);
if (m_header.magic != "SCEUF\0\0\0"_u64)
@ -40,3 +44,24 @@ fs::file pup_object::get_file(u64 entry_id)
}
return fs::file();
}
bool pup_object::validate_hashes()
{
for (size_t i = 0; i < m_file_tbl.size(); i++)
{
u8 *hash = m_hash_tbl[i].hash;
PUPFileEntry file = m_file_tbl[i];
std::vector<u8> buffer(file.data_length);
m_file.seek(file.data_offset);
m_file.read(buffer.data(), file.data_length);
u8 output[20] = {};
sha1_hmac(PUP_KEY, sizeof(PUP_KEY), buffer.data(), buffer.size(), output);
if (memcmp(output, hash, 20) != 0)
{
return false;
}
}
return true;
}