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/des/desx.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/des/desx.cpp')
| -rw-r--r-- | src/lib/block/des/desx.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/lib/block/des/desx.cpp b/src/lib/block/des/desx.cpp index 7c9995523..e869b3ebf 100644 --- a/src/lib/block/des/desx.cpp +++ b/src/lib/block/des/desx.cpp @@ -14,6 +14,8 @@ namespace Botan { */ void DESX::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const { + verify_key_set(m_K1.empty() == false); + for(size_t i = 0; i != blocks; ++i) { xor_buf(out, in, m_K1.data(), BLOCK_SIZE); @@ -30,6 +32,8 @@ void DESX::encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const */ void DESX::decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const { + verify_key_set(m_K1.empty() == false); + for(size_t i = 0; i != blocks; ++i) { xor_buf(out, in, m_K2.data(), BLOCK_SIZE); |