#include "pch.h" #include "Crypt.h" #include "Patches.h" #include "Util.h" Crypt__verifySignatureBase64_t Crypt__verifySignatureBase64 = (Crypt__verifySignatureBase64_t)ADDRESS_CRYPT__VERIFYSIGNATUREBASE64; // Crypt::verifySignatureBase64(std::string message, std::string signatureBase64) void __fastcall Crypt__verifySignatureBase64_hook(HCRYPTPROV* _this, void*, int a2, BYTE* pbData, int a4, int a5, int a6, DWORD dwDataLen, int a8, int a9, int a10, int a11, int a12, int a13, int a14, int a15) { /* Ideally, we would be able to just use the function signature as-is. However, it causes inexplicable crashes. Thus, we must reconstruct the strings by hand given the manual parameters. */ std::string message; std::string signatureBase64; // Get message const BYTE* v18 = pbData; if ((unsigned int)a8 < 0x10) { v18 = (const BYTE*)&pbData; } message = std::string(reinterpret_cast(pbData), dwDataLen); // Get signatureBase64 int* v21 = (int*)a10; if ((unsigned int)a15 < 0x10) { v21 = &a10; } signatureBase64 = std::string(reinterpret_cast(v21), a14); // Verify the signature }