From 2b877cd03cf9caff74477f1880bf1d486cd76320 Mon Sep 17 00:00:00 2001
From: ErikasKontenis <e.kontenis@gmail.com>
Date: Wed, 29 Jan 2020 18:19:01 +0200
Subject: [PATCH] fix crash bug on decrypt with invalid rsa on the client side

---
 src/rsa.cpp | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/rsa.cpp b/src/rsa.cpp
index ba557ac..b382313 100644
--- a/src/rsa.cpp
+++ b/src/rsa.cpp
@@ -31,9 +31,13 @@ static CryptoPP::AutoSeededRandomPool prng;
 
 void RSA::decrypt(char* msg) const
 {
-	CryptoPP::Integer m{ reinterpret_cast<uint8_t*>(msg), 128 };
-	auto c = pk.CalculateInverse(prng, m);
-	c.Encode(reinterpret_cast<uint8_t*>(msg), 128);
+	try {
+		CryptoPP::Integer m{ reinterpret_cast<uint8_t*>(msg), 128 };
+		auto c = pk.CalculateInverse(prng, m);
+		c.Encode(reinterpret_cast<uint8_t*>(msg), 128);
+	}
+	catch (const CryptoPP::Exception& e) {
+	}
 }
 
 static const std::string header = "-----BEGIN RSA PRIVATE KEY-----";