diff options
Diffstat (limited to 'src/libs/3rdparty/botan/src/lib/base/key_spec.h')
-rw-r--r-- | src/libs/3rdparty/botan/src/lib/base/key_spec.h | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/base/key_spec.h b/src/libs/3rdparty/botan/src/lib/base/key_spec.h deleted file mode 100644 index 6db20a9b63..0000000000 --- a/src/libs/3rdparty/botan/src/lib/base/key_spec.h +++ /dev/null @@ -1,100 +0,0 @@ -/* -* Symmetric Key Length Specification -* (C) 2010 Jack Lloyd -* -* Botan is released under the Simplified BSD License (see license.txt) -*/ - -#ifndef BOTAN_KEY_LEN_SPECIFICATION_H_ -#define BOTAN_KEY_LEN_SPECIFICATION_H_ - -#include <botan/types.h> - -namespace Botan { - -/** -* Represents the length requirements on an algorithm key -*/ -class BOTAN_PUBLIC_API(2,0) Key_Length_Specification final - { - public: - /** - * Constructor for fixed length keys - * @param keylen the supported key length - */ - explicit Key_Length_Specification(size_t keylen) : - m_min_keylen(keylen), - m_max_keylen(keylen), - m_keylen_mod(1) - { - } - - /** - * Constructor for variable length keys - * @param min_k the smallest supported key length - * @param max_k the largest supported key length - * @param k_mod the number of bytes the key must be a multiple of - */ - Key_Length_Specification(size_t min_k, - size_t max_k, - size_t k_mod = 1) : - m_min_keylen(min_k), - m_max_keylen(max_k ? max_k : min_k), - m_keylen_mod(k_mod) - { - } - - /** - * @param length is a key length in bytes - * @return true iff this length is a valid length for this algo - */ - bool valid_keylength(size_t length) const - { - return ((length >= m_min_keylen) && - (length <= m_max_keylen) && - (length % m_keylen_mod == 0)); - } - - /** - * @return minimum key length in bytes - */ - size_t minimum_keylength() const - { - return m_min_keylen; - } - - /** - * @return maximum key length in bytes - */ - size_t maximum_keylength() const - { - return m_max_keylen; - } - - /** - * @return key length multiple in bytes - */ - size_t keylength_multiple() const - { - return m_keylen_mod; - } - - /* - * Multiplies all length requirements with the given factor - * @param n the multiplication factor - * @return a key length specification multiplied by the factor - */ - Key_Length_Specification multiple(size_t n) const - { - return Key_Length_Specification(n * m_min_keylen, - n * m_max_keylen, - n * m_keylen_mod); - } - - private: - size_t m_min_keylen, m_max_keylen, m_keylen_mod; - }; - -} - -#endif |