Merge GH #544 Make StreamCipher::set_iv pure virtual

1 files changed, 6 insertions, 0 deletions

diff --git a/src/lib/stream/rc4/rc4.cpp b/src/lib/stream/rc4/rc4.cpp
index a4dea9e2b..e5ea2e2b8 100644
--- a/src/lib/stream/rc4/rc4.cpp
+++ b/src/lib/stream/rc4/rc4.cpp
@@ -6,6 +6,7 @@
 */
 
 #include <botan/rc4.h>
+#include <botan/exceptn.h>
 
 namespace Botan {
 
@@ -35,6 +36,11 @@ void RC4::cipher(const byte in[], byte out[], size_t length)
    m_position += length;
    }
 
+void RC4::set_iv(const byte*, size_t)
+   {
+   throw Exception("RC4 does not support an IV");
+   }
+
 /*
 * Generate cipher stream
 */