Provides key lengths based on another class's key length. More...
Static Public Member Functions | |
static size_t | StaticGetValidKeyLength (size_t keylength) |
Provides a valid key length for the cipher provided by a static function. | |
Static Public Attributes | |
static const int | MIN_KEYLENGTH = T::MIN_KEYLENGTH |
The minimum key length used by the cipher provided as a constant. | |
static const int | MAX_KEYLENGTH = T::MAX_KEYLENGTH |
The maximum key length used by the cipher provided as a constant. | |
static const int | DEFAULT_KEYLENGTH = T::DEFAULT_KEYLENGTH |
The default key length used by the cipher provided as a constant. | |
static const int | IV_REQUIREMENT = IV_REQ |
The default IV requirements for the cipher provided as a constant. | |
static const int | IV_LENGTH = IV_L |
The default initialization vector length for the cipher provided as a constant. |
Provides key lengths based on another class's key length.
T | another FixedKeyLength or VariableKeyLength class | |
IV_REQ | The IV requirements. See IV_Requirement in cryptlib.h for allowed values | |
IV_L | Default IV length, in bytes |
Definition at line 213 of file seckey.h.
static size_t SameKeyLengthAs< T, IV_REQ, IV_L >::StaticGetValidKeyLength | ( | size_t | keylength | ) | [inline, static] |
Provides a valid key length for the cipher provided by a static function.
keylength | the size of the key, in bytes |
If keylength is less than MIN_KEYLENGTH, then the function returns MIN_KEYLENGTH. If keylength is greater than MAX_KEYLENGTH, then the function returns MAX_KEYLENGTH. If keylength is a multiple of KEYLENGTH_MULTIPLE, then keylength is returned. Otherwise, the function returns keylength rounded down to the next smaller multiple of KEYLENGTH_MULTIPLE.
keylength is provided in bytes, not bits.
Definition at line 240 of file seckey.h.
Referenced by SameKeyLengthAs< T >::StaticGetValidKeyLength().
const int SameKeyLengthAs< T, IV_REQ, IV_L >::MIN_KEYLENGTH = T::MIN_KEYLENGTH [static] |
const int SameKeyLengthAs< T, IV_REQ, IV_L >::MAX_KEYLENGTH = T::MAX_KEYLENGTH [static] |
const int SameKeyLengthAs< T, IV_REQ, IV_L >::DEFAULT_KEYLENGTH = T::DEFAULT_KEYLENGTH [static] |
const int SameKeyLengthAs< T, IV_REQ, IV_L >::IV_REQUIREMENT = IV_REQ [static] |
The default IV requirements for the cipher provided as a constant.
The default value is NOT_RESYNCHRONIZABLE. See IV_Requirement in cryptlib.h for allowed values.
const int SameKeyLengthAs< T, IV_REQ, IV_L >::IV_LENGTH = IV_L [static] |