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 (const uint8_t sig[], size_t sig_len) override
void	update (const uint8_t msg[], size_t msg_len) 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

)

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(); }

References Botan::XMSS_Hash::hash_function().

is_valid_signature()

bool Botan::XMSS_Verification_Operation::is_valid_signature ( const uint8_t sig[], size_t sig_len )

overridevirtual

Perform a verification operation

Implements Botan::PK_Ops::Verification.

Definition at line 83 of file xmss_verification_operation.cpp.

                                                                                        {
   try {
      XMSS_Signature signature(m_pub_key.xmss_parameters().oid(), secure_vector<uint8_t>(sig, sig + sig_len));
      bool result = verify(signature, m_msg_buf, m_pub_key);
      m_msg_buf.clear();
      return result;
   } catch(...) {
      m_msg_buf.clear();
      return false;
   }
}

References Botan::XMSS_Parameters::oid(), and Botan::XMSS_PublicKey::xmss_parameters().

update()

void Botan::XMSS_Verification_Operation::update ( const uint8_t msg[], size_t msg_len )

overridevirtual

Add more data to the message currently being signed

Parameters

msg	the message
msg_len	the length of msg in bytes

Implements Botan::PK_Ops::Verification.

Definition at line 79 of file xmss_verification_operation.cpp.

                                                                            {
   std::copy(msg, msg + msg_len, std::back_inserter(m_msg_buf));
}

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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