Botan::PK_Ops::Key_Agreement_with_KDF Class Reference

#include <pk_ops_impl.h>

Inheritance diagram for Botan::PK_Ops::Key_Agreement_with_KDF:

Public Member Functions
secure_vector< uint8_t >	agree (size_t key_len, std::span< const uint8_t > other_key, std::span< const uint8_t > salt) override
virtual size_t	agreed_value_size () const =0
	~Key_Agreement_with_KDF () override=default

Protected Member Functions
	Key_Agreement_with_KDF (std::string_view kdf)

Detailed Description

Definition at line 103 of file pk_ops_impl.h.

Constructor & Destructor Documentation

~Key_Agreement_with_KDF()

Botan::PK_Ops::Key_Agreement_with_KDF::~Key_Agreement_with_KDF ( )

overridedefault

Key_Agreement_with_KDF()

Botan::PK_Ops::Key_Agreement_with_KDF::Key_Agreement_with_KDF ( std::string_view kdf )

explicitprotected

Definition at line 65 of file pk_ops.cpp.

                                                                       {
   if(kdf != "Raw") {
      m_kdf = KDF::create_or_throw(kdf);
   }
}

References Botan::KDF::create_or_throw().

Member Function Documentation

agree()

secure_vector< uint8_t > Botan::PK_Ops::Key_Agreement_with_KDF::agree ( size_t key_len, std::span< const uint8_t > other_key, std::span< const uint8_t > salt )

overridevirtual

Implements Botan::PK_Ops::Key_Agreement.

Definition at line 71 of file pk_ops.cpp.

                                                                                          {
   if(!salt.empty() && m_kdf == nullptr) {
      throw Invalid_Argument("PK_Key_Agreement::derive_key requires a KDF to use a salt");
   }
 
   secure_vector<uint8_t> z = raw_agree(other_key.data(), other_key.size());
   if(m_kdf) {
      return m_kdf->derive_key(key_len, z, salt.data(), salt.size());
   }
   return z;
}

agreed_value_size()

virtual size_t Botan::PK_Ops::Key_Agreement::agreed_value_size ( ) const

pure virtualinherited

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

• src/lib/pubkey/pk_ops_impl.h
• src/lib/pubkey/pk_ops.cpp