diff options
| author | Jack Lloyd <[email protected]> | 2017-10-26 20:31:30 -0400 |
|---|---|---|
| committer | Jack Lloyd <[email protected]> | 2017-10-26 22:26:15 -0400 |
| commit | e6d45052efedfe49e99adb6318aaf56e0a9e8d7b (patch) | |
| tree | c6c3ccd3cff3d04285940bf1d518c809e0653947 /src/lib/block/cast/cast256.cpp | |
| 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/block/cast/cast256.cpp')
| -rw-r--r-- | src/lib/block/cast/cast256.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/lib/block/cast/cast256.cpp b/src/lib/block/cast/cast256.cpp index b4aa49166..cd5175dd7 100644 --- a/src/lib/block/cast/cast256.cpp +++ b/src/lib/block/cast/cast256.cpp @@ -50,6 +50,8 @@ void round3(uint32_t& out, uint32_t in, uint32_t MK, uint32_t RK) */ void CAST_256::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const { + verify_key_set(m_RK.empty() == false); + for(size_t i = 0; i != blocks; ++i) { uint32_t A = load_be<uint32_t>(in, 0); @@ -94,6 +96,8 @@ void CAST_256::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const */ void CAST_256::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const { + verify_key_set(m_RK.empty() == false); + for(size_t i = 0; i != blocks; ++i) { uint32_t A = load_be<uint32_t>(in, 0); |