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/*
* FrodoKEM modes and constants
*
* The Fellowship of the FrodoKEM:
* (C) 2023 Jack Lloyd
* 2023 René Meusel, Amos Treiber - Rohde & Schwarz Cybersecurity
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_FRODOKEM_MODE_H_
#define BOTAN_FRODOKEM_MODE_H_
#include <botan/asn1_obj.h>
#include <vector>
namespace Botan {
class BOTAN_PUBLIC_API(3, 3) FrodoKEMMode {
public:
enum Mode {
FrodoKEM640_SHAKE,
FrodoKEM976_SHAKE,
FrodoKEM1344_SHAKE,
eFrodoKEM640_SHAKE,
eFrodoKEM976_SHAKE,
eFrodoKEM1344_SHAKE,
FrodoKEM640_AES,
FrodoKEM976_AES,
FrodoKEM1344_AES,
eFrodoKEM640_AES,
eFrodoKEM976_AES,
eFrodoKEM1344_AES
};
FrodoKEMMode(Mode mode);
explicit FrodoKEMMode(const OID& oid);
explicit FrodoKEMMode(std::string_view str);
OID object_identifier() const;
std::string to_string() const;
Mode mode() const { return m_mode; }
bool is_ephemeral() const {
return m_mode == eFrodoKEM640_SHAKE || m_mode == eFrodoKEM976_SHAKE || m_mode == eFrodoKEM1344_SHAKE ||
m_mode == eFrodoKEM640_AES || m_mode == eFrodoKEM976_AES || m_mode == eFrodoKEM1344_AES;
}
bool is_static() const {
return m_mode == FrodoKEM640_SHAKE || m_mode == FrodoKEM976_SHAKE || m_mode == FrodoKEM1344_SHAKE ||
m_mode == FrodoKEM640_AES || m_mode == FrodoKEM976_AES || m_mode == FrodoKEM1344_AES;
}
bool is_shake() const {
return m_mode == eFrodoKEM640_SHAKE || m_mode == eFrodoKEM976_SHAKE || m_mode == eFrodoKEM1344_SHAKE ||
m_mode == FrodoKEM640_SHAKE || m_mode == FrodoKEM976_SHAKE || m_mode == FrodoKEM1344_SHAKE;
}
bool is_aes() const {
return m_mode == eFrodoKEM640_AES || m_mode == eFrodoKEM976_AES || m_mode == eFrodoKEM1344_AES ||
m_mode == FrodoKEM640_AES || m_mode == FrodoKEM976_AES || m_mode == FrodoKEM1344_AES;
}
bool is_available() const {
return
#if defined(BOTAN_HAS_FRODOKEM_AES)
is_aes() ||
#endif
#if defined(BOTAN_HAS_FRODOKEM_SHAKE)
is_shake() ||
#endif
false;
}
bool operator==(const FrodoKEMMode& other) const { return m_mode == other.m_mode; }
bool operator!=(const FrodoKEMMode& other) const { return !(*this == other); }
private:
Mode m_mode;
};
} // namespace Botan
#endif