Botan::XMSS_Verification_Operation Class Reference

#include <xmss_verification_operation.h>

Inheritance diagram for Botan::XMSS_Verification_Operation:

Public Member Functions
std::string	hash_function () const override
bool	is_valid_signature (std::span< const uint8_t > sign) override
void	update (std::span< const uint8_t > input) override
	XMSS_Verification_Operation (const XMSS_PublicKey &public_key)

Detailed Description

Provides signature verification capabilities for Extended Hash-Based Signatures (XMSS).

Definition at line 21 of file xmss_verification_operation.h.

Constructor & Destructor Documentation

XMSS_Verification_Operation()

Botan::XMSS_Verification_Operation::XMSS_Verification_Operation ( const XMSS_PublicKey & public_key )

explicit

Definition at line 19 of file xmss_verification_operation.cpp.

                                                                                         :
      m_pub_key(public_key), m_hash(public_key.xmss_parameters()), m_msg_buf(0) {}

Member Function Documentation

hash_function()

std::string Botan::XMSS_Verification_Operation::hash_function ( ) const

inlineoverridevirtual

Return the hash function being used by this signer

Implements Botan::PK_Ops::Verification.

Definition at line 29 of file xmss_verification_operation.h.

{ return m_hash.hash_function(); }

is_valid_signature()

bool Botan::XMSS_Verification_Operation::is_valid_signature ( std::span< const uint8_t > sig )

overridevirtual

Perform a verification operation

Parameters

sig	the signature to be checked with respect to the input

Implements Botan::PK_Ops::Verification.

Definition at line 84 of file xmss_verification_operation.cpp.

                                                                               {
   try {
      XMSS_Signature signature(m_pub_key.xmss_parameters().oid(), sig);
      bool result = verify(signature, m_msg_buf, m_pub_key);
      m_msg_buf.clear();
      return result;
   } catch(...) {
      m_msg_buf.clear();
      return false;
   }
}

update()

void Botan::XMSS_Verification_Operation::update ( std::span< const uint8_t > input )

overridevirtual

Add more data to the message currently being signed

Parameters

input

the input to be hashed/verified

Implements Botan::PK_Ops::Verification.

Definition at line 80 of file xmss_verification_operation.cpp.

                                                                     {
   m_msg_buf.insert(m_msg_buf.end(), input.begin(), input.end());
}

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

• src/lib/pubkey/xmss/xmss_verification_operation.h
• src/lib/pubkey/xmss/xmss_verification_operation.cpp