MuSig2SecNonce Class Reference

MuSig2SecNonce encapsulates a secret nonce in use in a MuSig2 signing session. More...

#include <musig.h>

Public Member Functions
	MuSig2SecNonce ()
	MuSig2SecNonce (MuSig2SecNonce &&) noexcept
MuSig2SecNonce &	operator= (MuSig2SecNonce &&) noexcept
	~MuSig2SecNonce ()
	MuSig2SecNonce (const MuSig2SecNonce &)=delete
MuSig2SecNonce &	operator= (const MuSig2SecNonce &)=delete
secp256k1_musig_secnonce *	Get () const
void	Invalidate ()
bool	IsValid ()

Private Attributes
std::unique_ptr< MuSig2SecNonceImpl >	m_impl

Detailed Description

MuSig2SecNonce encapsulates a secret nonce in use in a MuSig2 signing session.

Since this nonce persists outside of libsecp256k1 signing code, we must handle its construction and destruction ourselves. The secret nonce must be kept a secret, otherwise the private key may be leaked. As such, it needs to be treated in the same way that CKeys are treated. So this class handles the secure allocation of the secp256k1_musig_secnonce object that libsecp256k1 uses, and only gives out references to this object to avoid any possibility of copies being made. Furthermore, objects of this class are not copyable to avoid nonce reuse.

Definition at line 48 of file musig.h.

Constructor & Destructor Documentation

MuSig2SecNonce() [1/3]

MuSig2SecNonce::MuSig2SecNonce

(

)

Definition at line 93 of file musig.cpp.

MuSig2SecNonce() [2/3]

MuSig2SecNonce::MuSig2SecNonce ( MuSig2SecNonce &&  )

defaultnoexcept

~MuSig2SecNonce()

MuSig2SecNonce::~MuSig2SecNonce ( )

default

MuSig2SecNonce() [3/3]

MuSig2SecNonce::MuSig2SecNonce ( const MuSig2SecNonce &  )

delete

Member Function Documentation

Get()

secp256k1_musig_secnonce * MuSig2SecNonce::Get

(

)

const

Definition at line 100 of file musig.cpp.

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Invalidate()

void MuSig2SecNonce::Invalidate

(

)

Definition at line 105 of file musig.cpp.

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IsValid()

bool MuSig2SecNonce::IsValid

(

)

Definition at line 110 of file musig.cpp.

operator=() [1/2]

MuSig2SecNonce & MuSig2SecNonce::operator= ( const MuSig2SecNonce &  )

delete

operator=() [2/2]

MuSig2SecNonce & MuSig2SecNonce::operator= ( MuSig2SecNonce &&  )

defaultnoexcept

Member Data Documentation

m_impl

std::unique_ptr<MuSig2SecNonceImpl> MuSig2SecNonce::m_impl

private

Definition at line 51 of file musig.h.

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

• src/musig.h
• src/musig.cpp