Botan::Kyber_PrivateKeyInternal Class Reference

#include <kyber_keys.h>

Public Member Functions
KyberMessage	indcpa_decrypt (Ciphertext ct) const
	Kyber_PrivateKeyInternal ()=delete
	Kyber_PrivateKeyInternal (KyberConstants mode, PolynomialVector s, KyberImplicitRejectionValue z)
const KyberConstants &	mode () const
PolynomialVector &	s ()
const PolynomialVector &	s () const
const KyberImplicitRejectionValue &	z () const

Detailed Description

Definition at line 50 of file kyber_keys.h.

Constructor & Destructor Documentation

Kyber_PrivateKeyInternal() [1/2]

Botan::Kyber_PrivateKeyInternal::Kyber_PrivateKeyInternal ( KyberConstants mode, PolynomialVector s, KyberImplicitRejectionValue z )

inline

Definition at line 52 of file kyber_keys.h.

                                                                                                       :
            m_mode(std::move(mode)), m_s(std::move(s)), m_z(std::move(z)) {}

Kyber_PrivateKeyInternal() [2/2]

Botan::Kyber_PrivateKeyInternal::Kyber_PrivateKeyInternal ( )

delete

Member Function Documentation

indcpa_decrypt()

KyberMessage Botan::Kyber_PrivateKeyInternal::indcpa_decrypt

(

Ciphertext

ct

)

const

NIST FIPS 203 IPD, Algorithm 14 (K-PKE.Decrypt)

Definition at line 57 of file kyber_keys.cpp.

                                                                         {
   auto& u = ct.b();
   const auto& v = ct.v();
 
   u.ntt();
   auto w = PolynomialVector::pointwise_acc_montgomery(m_s, u);
   w.invntt_tomont();
 
   w -= v;
   w.reduce();
   return w.to_message();
}

References Botan::Ciphertext::b(), Botan::Polynomial::ntt(), Botan::PolynomialVector::pointwise_acc_montgomery(), and Botan::Ciphertext::v().

mode()

const KyberConstants & Botan::Kyber_PrivateKeyInternal::mode ( ) const

inline

Definition at line 63 of file kyber_keys.h.

{ return m_mode; }

s() [1/2]

PolynomialVector & Botan::Kyber_PrivateKeyInternal::s ( )

inline

Definition at line 57 of file kyber_keys.h.

{ return m_s; }

s() [2/2]

const PolynomialVector & Botan::Kyber_PrivateKeyInternal::s ( ) const

inline

Definition at line 59 of file kyber_keys.h.

{ return m_s; }

z()

const KyberImplicitRejectionValue & Botan::Kyber_PrivateKeyInternal::z ( ) const

inline

Definition at line 61 of file kyber_keys.h.

{ return m_z; }

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

• src/lib/pubkey/kyber/kyber_common/kyber_keys.h
• src/lib/pubkey/kyber/kyber_common/kyber_keys.cpp