aboutsummaryrefslogtreecommitdiffstats
path: root/src/lib/stream/rc4
diff options
context:
space:
mode:
authorJack Lloyd <jack@randombit.net>2017-10-26 20:31:30 -0400
committerJack Lloyd <jack@randombit.net>2017-10-26 22:26:15 -0400
commite6d45052efedfe49e99adb6318aaf56e0a9e8d7b (patch)
treec6c3ccd3cff3d04285940bf1d518c809e0653947 /src/lib/stream/rc4
parent315b002ecf00f6b6bb0f0d5200d1f39a83527e8f (diff)
Add checks that keyed algorithms are actually keyed before use
Previously calling update or encrypt without calling set_key first would result in invalid outputs or else crashing.
Diffstat (limited to 'src/lib/stream/rc4')
-rw-r--r--src/lib/stream/rc4/rc4.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/lib/stream/rc4/rc4.cpp b/src/lib/stream/rc4/rc4.cpp
index 208b2f560..60565d445 100644
--- a/src/lib/stream/rc4/rc4.cpp
+++ b/src/lib/stream/rc4/rc4.cpp
@@ -15,6 +15,8 @@ namespace Botan {
*/
void RC4::cipher(const uint8_t in[], uint8_t out[], size_t length)
{
+ verify_key_set(m_state.empty() == false);
+
while(length >= m_buffer.size() - m_position)
{
xor_buf(out, in, &m_buffer[m_position], m_buffer.size() - m_position);