diff options
| -rw-r--r-- | cxx/include/aesnixx/mode.hpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/cxx/include/aesnixx/mode.hpp b/cxx/include/aesnixx/mode.hpp index 9bcbbd5..a0af051 100644 --- a/cxx/include/aesnixx/mode.hpp +++ b/cxx/include/aesnixx/mode.hpp @@ -24,8 +24,25 @@ namespace aesni struct ModeRequiresInitializationVector<AESNI_ECB> : public std::false_type { }; + template <Mode mode> + struct ModeUsesEncryptionKeysOnly : public std::true_type + { }; + inline bool mode_requires_initialization_vector(Mode mode) { return mode != AESNI_ECB; } + + template <> + struct ModeUsesEncryptionKeysOnly<AESNI_ECB> : public std::false_type + { }; + + template <> + struct ModeUsesEncryptionKeysOnly<AESNI_CBC> : public std::false_type + { }; + + inline bool mode_uses_encryption_keys_only(Mode mode) + { + return mode != AESNI_ECB && mode != AESNI_CBC; + } } |