diff options
author | Jack Lloyd <jack@randombit.net> | 2017-10-26 20:31:30 -0400 |
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committer | Jack Lloyd <jack@randombit.net> | 2017-10-26 22:26:15 -0400 |
commit | e6d45052efedfe49e99adb6318aaf56e0a9e8d7b (patch) | |
tree | c6c3ccd3cff3d04285940bf1d518c809e0653947 /src/lib/stream/rc4 | |
parent | 315b002ecf00f6b6bb0f0d5200d1f39a83527e8f (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.cpp | 2 |
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); |