Botan::GF_Mask Class Reference

Constant time mask wrapper for GF(q) elements. More...

#include <cmce_gf.h>

Public Member Functions
bool	as_bool () const
CT::Mask< uint16_t > &	elem_mask ()
	GF_Mask (CT::Mask< uint16_t > underlying_mask)
Classic_McEliece_GF	if_set_return (const Classic_McEliece_GF x) const
GF_Mask &	operator&= (const GF_Mask &o)
Classic_McEliece_GF	select (const Classic_McEliece_GF x, CmceGfElem y) const
Classic_McEliece_GF	select (const Classic_McEliece_GF x, const Classic_McEliece_GF y) const
uint16_t	select (uint16_t x, uint16_t y) const

Static Public Member Functions
static GF_Mask	expand (Classic_McEliece_GF v)
template<std::unsigned_integral T>
static GF_Mask	expand (T v)
static GF_Mask	is_equal (Classic_McEliece_GF a, Classic_McEliece_GF b)
static GF_Mask	is_lte (Classic_McEliece_GF a, Classic_McEliece_GF b)
static GF_Mask	is_zero (Classic_McEliece_GF v)
static GF_Mask	set ()

Detailed Description

Constant time mask wrapper for GF(q) elements.

Definition at line 153 of file cmce_gf.h.

Constructor & Destructor Documentation

GF_Mask()

Botan::GF_Mask::GF_Mask ( CT::Mask< uint16_t > underlying_mask )

inline

Definition at line 174 of file cmce_gf.h.

: m_mask(underlying_mask) {}

Member Function Documentation

as_bool()

bool Botan::GF_Mask::as_bool ( ) const

inline

Definition at line 195 of file cmce_gf.h.

{ return m_mask.as_bool(); }

elem_mask()

CT::Mask< uint16_t > & Botan::GF_Mask::elem_mask ( )

inline

Definition at line 197 of file cmce_gf.h.

{ return m_mask; }

Referenced by Botan::Classic_McEliece_PrivateKeyInternal::check_key().

expand() [1/2]

static GF_Mask Botan::GF_Mask::expand ( Classic_McEliece_GF v )

inlinestatic

Definition at line 160 of file cmce_gf.h.

{ return expand(v.elem().get()); }

References Botan::Classic_McEliece_GF::elem(), expand(), and Botan::detail::Strong_Base< T >::get().

Referenced by expand().

expand() [2/2]

template<std::unsigned_integral T>

static GF_Mask Botan::GF_Mask::expand ( T v )

inlinestatic

Definition at line 156 of file cmce_gf.h.

                                 {
         return GF_Mask(CT::Mask<uint16_t>::expand(v));
      }

if_set_return()

Classic_McEliece_GF Botan::GF_Mask::if_set_return ( const Classic_McEliece_GF x ) const

inline

Definition at line 176 of file cmce_gf.h.

                                                                           {
         return Classic_McEliece_GF(CmceGfElem(m_mask.if_set_return(x.elem().get())), x.modulus());
      }

References Botan::Classic_McEliece_GF::elem(), Botan::detail::Strong_Base< T >::get(), and Botan::Classic_McEliece_GF::modulus().

is_equal()

static GF_Mask Botan::GF_Mask::is_equal ( Classic_McEliece_GF a, Classic_McEliece_GF b )

inlinestatic

Definition at line 168 of file cmce_gf.h.

                                                                            {
         return GF_Mask(CT::Mask<uint16_t>::is_equal(a.elem().get(), b.elem().get()));
      }

References Botan::b, Botan::Classic_McEliece_GF::elem(), and Botan::detail::Strong_Base< T >::get().

Referenced by Botan::Classic_McEliece_PrivateKeyInternal::check_key().

is_lte()

static GF_Mask Botan::GF_Mask::is_lte ( Classic_McEliece_GF a, Classic_McEliece_GF b )

inlinestatic

Definition at line 164 of file cmce_gf.h.

                                                                          {
         return GF_Mask(CT::Mask<uint16_t>::is_lte(a.elem().get(), b.elem().get()));
      }

References Botan::b, Botan::Classic_McEliece_GF::elem(), and Botan::detail::Strong_Base< T >::get().

is_zero()

static GF_Mask Botan::GF_Mask::is_zero ( Classic_McEliece_GF v )

inlinestatic

Definition at line 162 of file cmce_gf.h.

{ return GF_Mask(CT::Mask<uint16_t>::is_zero(v.elem().get())); }

References Botan::Classic_McEliece_GF::elem(), and Botan::detail::Strong_Base< T >::get().

Referenced by Botan::Classic_McEliece_Polynomial_Ring::compute_minimal_polynomial().

operator&=()

GF_Mask & Botan::GF_Mask::operator&= ( const GF_Mask & o )

inline

Definition at line 190 of file cmce_gf.h.

                                            {
         m_mask &= o.m_mask;
         return (*this);
      }

select() [1/3]

Classic_McEliece_GF Botan::GF_Mask::select ( const Classic_McEliece_GF x, CmceGfElem y ) const

inline

Definition at line 184 of file cmce_gf.h.

                                                                                  {
         return Classic_McEliece_GF(CmceGfElem(m_mask.select(x.elem().get(), y.get())), x.modulus());
      }

References Botan::Classic_McEliece_GF::elem(), Botan::detail::Strong_Base< T >::get(), and Botan::Classic_McEliece_GF::modulus().

select() [2/3]

Classic_McEliece_GF Botan::GF_Mask::select ( const Classic_McEliece_GF x, const Classic_McEliece_GF y ) const

inline

Definition at line 180 of file cmce_gf.h.

                                                                                                 {
         return Classic_McEliece_GF(CmceGfElem(m_mask.select(x.elem().get(), y.elem().get())), x.modulus());
      }

References Botan::Classic_McEliece_GF::elem(), Botan::detail::Strong_Base< T >::get(), and Botan::Classic_McEliece_GF::modulus().

select() [3/3]

uint16_t Botan::GF_Mask::select ( uint16_t x, uint16_t y ) const

inline

Definition at line 188 of file cmce_gf.h.

{ return m_mask.select(x, y); }

set()

static GF_Mask Botan::GF_Mask::set ( )

inlinestatic

Definition at line 172 of file cmce_gf.h.

{ return GF_Mask(CT::Mask<uint16_t>::set()); }

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The documentation for this class was generated from the following file:

• src/lib/pubkey/classic_mceliece/cmce_gf.h