CODEX_Ciphers::VarRSABlindPlainText Class Reference

Serializable representation of a blinded plaintext for the RSA variant. More...

#include <VarRSA.h>

Inheritance diagram for CODEX_Ciphers::VarRSABlindPlainText:

[legend]Collaboration diagram for CODEX_Ciphers::VarRSABlindPlainText:

[legend]List of all members.

Public Member Functions
	VarRSABlindPlainText ()
	Default constructor, for creating an object to be unmarshalled.
	VarRSABlindPlainText (BIGNUM *b1, BIGNUM *b2)
	Constructor taking plaintext as a BIGNUMs.
	VarRSABlindPlainText (const CODEX_ASN1::BigNumber &b1, const CODEX_ASN1::BigNumber &b2)
	Constructor taking plaintext as BigNumber%s.
	VarRSABlindPlainText (const VarRSABlindPlainText &aOther)
	Copy constructor.
virtual	~VarRSABlindPlainText ()
	Destructor.
void	operator= (const VarRSABlindPlainText &aOther)
	Assignment operator.
const CODEX_ASN1::BigNumber &	b1 () const
const CODEX_ASN1::BigNumber &	b2 () const
BIGNUM *	unblind (const BIGNUM *b, const CODEX_ASN1::BigNumber &modulus, const HashFunction &hashFunc) const
	Unblind a blind plaintext.
int	marshal (unsigned char **pp) const
	Serialize the object.
void *	unmarshal (void *bogus, unsigned char **pp, long length)
	Unserialize the object.
bool	initialized () const
Protected Attributes
bool	m_initialized
	Has this object been initialized yet, or is it still blank?

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Detailed Description

Serializable representation of a blinded plaintext for the RSA variant.

This is a two-part plaintext, where the first part is r*b and the second H(r) XOR m for a blinding factor b, message m, and hash function H.

Definition at line 181 of file VarRSA.h.

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Member Function Documentation

const CODEX_ASN1::BigNumber& CODEX_Ciphers::VarRSABlindPlainText::b1 (   )  const [inline]

Returns: first element of plain text. b1 = b*r Definition at line 218 of file VarRSA.h. Referenced by CODEX_KeyService::DelegateResponseVerifier::handler(), and VarRSABlindPlainText().

const CODEX_ASN1::BigNumber& CODEX_Ciphers::VarRSABlindPlainText::b2 (   )  const [inline]

Returns: second element of plain text. b2 = H(r) XOR m Definition at line 223 of file VarRSA.h. Referenced by CODEX_KeyService::DelegateResponseVerifier::handler(), and VarRSABlindPlainText().

bool CODEX_ASN1::Base::initialized (   )  const [inline, inherited]

Returns: Has this object been initialized? Definition at line 175 of file Base.h. References CODEX_ASN1::Base::m_initialized. Referenced by CODEX_APSS::SecretManagement::addComputeMsg(), CODEX_APSS::SecretManagement::addEstablishMsg(), CODEX_APSS::SecretManagement::addEstablishResponse(), CODEX_APSS::SecretManagement::addInitMsg(), CODEX_APSS::SecretManagement::addSharing(), CODEX_APSS::SecretManagement::addSubsharing(), CODEX_VSS::Combinatoric< NumT, ThreshT >::apply(), CODEX_Server::ServerState::caKey(), CODEX_KeyService::ClientCreateCallback::ClientCreateCallback(), CODEX_VSS::Combinatoric< NumT, ThreshT >::count(), CODEX_Server::QuorumBuilderAct::handler(), CODEX_APSS::MessageVerifier::handler(), CODEX_KeyService::DelegateResponseVerifier::handler(), CODEX_KeyService::DelegateRequestDistributor::handler(), CODEX_KeyService::ClientMessageVerifier::handler(), CODEX_KeyService::ClientMessageSigner::handler(), CODEX_VSS::SubshareLabel< LabelType >::marshal(), CODEX_KeyService::KeyInfo::marshal(), CODEX_VSS::LabeledShare< ShareType, OneWay >::marshal(), CODEX_VSS::ShareLabel< _ShareType, _OneWay >::marshal(), CODEX_VSS::ModExpFunctionalArgs::marshal(), CODEX_VSS::Combinatoric< NumT, ThreshT >::marshal(), CODEX_KeyService::SignWriteCallback::operator()(), CODEX_KeyService::SignReadCallback::operator()(), CODEX_KeyService::SignCreateCallback::operator()(), CODEX_VSS::ModExpFunctional::operator()(), CODEX_KeyService::ClientReadCallback::operator()(), CODEX_KeyService::ClientCreateCallback::operator()(), CODEX_VSS::Combinatoric< NumT, ThreshT >::operator+=(), CODEX_Server::ServerState::readElGamalShares(), CODEX_VSS::Combinatoric< NumT, ThreshT >::recover(), CODEX_APSS::SecretManagement::sendFinished(), CODEX_Server::ServerState::serviceKey(), CODEX_Server::ServerState::setEGShareCallback(), and CODEX_Server::ServerState::setRSAShareCallback().

BIGNUM * VarRSABlindPlainText::unblind (  const BIGNUM *  b, const CODEX_ASN1::BigNumber &  modulus, const HashFunction &  hashFunc )  const

Unblind a blind plaintext. Parameters: b  The blinding factor modulus  The modulus for the group in which ciphertexts live hashFunc  The hash function Returns: A pointer to a new BIGNUM which is the unblinding of the blind plaintext. Definition at line 33 of file VarRSABlindPlainText.cc. References CODEX_Ciphers::BIGNUM_xor(), CODEX_ASN1::BigNumber::marshal(), and CODEX_ASN1::BigNumber::value().

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

• VarRSA.h
• VarRSABlindPlainText.cc

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