1 files changed, 3 insertions, 1 deletions
diff --git a/aes.cpp b/aes.cpp
index 29fc7fc..7430717 100644
--- a/aes.cpp
+++ b/aes.cpp
@@ -248,7 +248,9 @@ namespace AES{
 			case AES_256_CBC: increment=2; break;
 			default: assert(false);
 		}
-		assert((int)key.size()==4*(4+2*increment));
+		if((int)key.size()!=4*(4+2*increment)){
+			throw invalid_argument("Invalid AES key length");
+		}
 		return decryptCBC(data,key,10+2*increment);
 	}