Botan::ECIES_System_Params Class Reference

#include <ecies.h>

Inheritance diagram for Botan::ECIES_System_Params:

Public Member Functions
bool	check_mode () const
bool	cofactor_mode () const
EC_Point_Format	compression_type () const
std::unique_ptr< Cipher_Mode >	create_cipher (Cipher_Dir direction) const
	creates an instance of the data encryption method
std::unique_ptr< MessageAuthenticationCode >	create_mac () const
	creates an instance of the message authentication code
size_t	dem_keylen () const
	returns the length of the key used by the data encryption method
const EC_Group &	domain () const
	ECIES_System_Params (const EC_Group &domain, std::string_view kdf_spec, std::string_view dem_algo_spec, size_t dem_key_len, std::string_view mac_spec, size_t mac_key_len)
	ECIES_System_Params (const EC_Group &domain, std::string_view kdf_spec, std::string_view dem_algo_spec, size_t dem_key_len, std::string_view mac_spec, size_t mac_key_len, EC_Point_Format compression_type, ECIES_Flags flags)
	ECIES_System_Params (const ECIES_System_Params &)=default
const std::string &	kdf_spec () const
size_t	mac_keylen () const
	returns the length of the key used by the message authentication code
bool	old_cofactor_mode () const
ECIES_System_Params &	operator= (const ECIES_System_Params &)=delete
size_t	secret_length () const
bool	single_hash_mode () const
	~ECIES_System_Params () override=default

Detailed Description

Definition at line 105 of file ecies.h.

Constructor & Destructor Documentation

ECIES_System_Params() [1/3]

Botan::ECIES_System_Params::ECIES_System_Params	(	const EC_Group &	domain,
		std::string_view	kdf_spec,
		std::string_view	dem_algo_spec,
		size_t	dem_key_len,
		std::string_view	mac_spec,
		size_t	mac_key_len )

Parameters

domain	ec domain parameters of the involved ec keys
kdf_spec	name of the key derivation function
dem_algo_spec	name of the data encryption method
dem_key_len	length of the key used for the data encryption method
mac_spec	name of the message authentication code
mac_key_len	length of the key used for the message authentication code

Definition at line 190 of file ecies.cpp.

                                                             :
      ECIES_System_Params(domain,
                          kdf_spec,
                          dem_algo_spec,
                          dem_key_len,
                          mac_spec,
                          mac_key_len,
                          EC_Point_Format::Uncompressed,
                          ECIES_Flags::None) {}

ECIES_System_Params() [2/3]

Botan::ECIES_System_Params::ECIES_System_Params	(	const EC_Group &	domain,
		std::string_view	kdf_spec,
		std::string_view	dem_algo_spec,
		size_t	dem_key_len,
		std::string_view	mac_spec,
		size_t	mac_key_len,
		EC_Point_Format	compression_type,
		ECIES_Flags	flags )

Parameters

domain	ec domain parameters of the involved ec keys
kdf_spec	name of the key derivation function
dem_algo_spec	name of the data encryption method
dem_key_len	length of the key used for the data encryption method
mac_spec	name of the message authentication code
mac_key_len	length of the key used for the message authentication code
compression_type	format of encoded keys (affects the secret derivation if single_hash_mode is used)
flags	options, see documentation of ECIES_Flags

Definition at line 171 of file ecies.cpp.

                                                            :
      ECIES_KA_Params(domain, kdf_spec, dem_key_len + mac_key_len, compression_type, flags),
      m_dem_spec(dem_algo_spec),
      m_dem_keylen(dem_key_len),
      m_mac_spec(mac_spec),
      m_mac_keylen(mac_key_len) {
   // ISO 18033: "At most one of CofactorMode, OldCofactorMode, and CheckMode may be 1."
   if(size_t(cofactor_mode()) + size_t(old_cofactor_mode()) + size_t(check_mode()) > 1) {
      throw Invalid_Argument("ECIES: only one of cofactor_mode, old_cofactor_mode and check_mode can be set");
   }
}

References Botan::ECIES_KA_Params::check_mode(), Botan::ECIES_KA_Params::cofactor_mode(), and Botan::ECIES_KA_Params::old_cofactor_mode().

ECIES_System_Params() [3/3]

Botan::ECIES_System_Params::ECIES_System_Params ( const ECIES_System_Params & )

default

~ECIES_System_Params()

Botan::ECIES_System_Params::~ECIES_System_Params ( )

overridedefault

Member Function Documentation

check_mode()

bool Botan::ECIES_KA_Params::check_mode ( ) const

inlineinherited

Definition at line 91 of file ecies.h.

{ return (m_flags & ECIES_Flags::CheckMode) == ECIES_Flags::CheckMode; }

Referenced by Botan::ECIES_Decryptor::ECIES_Decryptor(), and ECIES_System_Params().

cofactor_mode()

bool Botan::ECIES_KA_Params::cofactor_mode ( ) const

inlineinherited

Definition at line 85 of file ecies.h.

{ return (m_flags & ECIES_Flags::CofactorMode) == ECIES_Flags::CofactorMode; }

Referenced by ECIES_System_Params().

compression_type()

EC_Point_Format Botan::ECIES_KA_Params::compression_type ( ) const

inlineinherited

Definition at line 93 of file ecies.h.

{ return m_compression_mode; }

Referenced by Botan::ECIES_KA_Operation::derive_secret(), and Botan::ECIES_Encryptor::ECIES_Encryptor().

create_cipher()

std::unique_ptr< Cipher_Mode > Botan::ECIES_System_Params::create_cipher

(

Cipher_Dir

direction

)

const

creates an instance of the data encryption method

Definition at line 209 of file ecies.cpp.

                                                                                        {
   return Cipher_Mode::create_or_throw(m_dem_spec, direction);
}

References Botan::Cipher_Mode::create_or_throw().

Referenced by Botan::ECIES_Encryptor::ECIES_Encryptor().

create_mac()

std::unique_ptr< MessageAuthenticationCode > Botan::ECIES_System_Params::create_mac

(

)

const

creates an instance of the message authentication code

Definition at line 205 of file ecies.cpp.

                                                                               {
   return MessageAuthenticationCode::create_or_throw(m_mac_spec);
}

References Botan::MessageAuthenticationCode::create_or_throw().

Referenced by Botan::ECIES_Encryptor::ECIES_Encryptor().

dem_keylen()

size_t Botan::ECIES_System_Params::dem_keylen ( ) const

inline

returns the length of the key used by the data encryption method

Definition at line 152 of file ecies.h.

{ return m_dem_keylen; }

domain()

const EC_Group & Botan::ECIES_KA_Params::domain ( ) const

inlineinherited

Definition at line 77 of file ecies.h.

{ return m_domain; }

Referenced by Botan::ECIES_KA_Operation::derive_secret().

kdf_spec()

const std::string & Botan::ECIES_KA_Params::kdf_spec ( ) const

inlineinherited

Definition at line 95 of file ecies.h.

{ return m_kdf_spec; }

Referenced by Botan::ECIES_KA_Operation::derive_secret().

mac_keylen()

size_t Botan::ECIES_System_Params::mac_keylen ( ) const

inline

returns the length of the key used by the message authentication code

Definition at line 155 of file ecies.h.

{ return m_mac_keylen; }

old_cofactor_mode()

bool Botan::ECIES_KA_Params::old_cofactor_mode ( ) const

inlineinherited

Definition at line 87 of file ecies.h.

                                            {
         return (m_flags & ECIES_Flags::OldCofactorMode) == ECIES_Flags::OldCofactorMode;
      }

Referenced by Botan::ECIES_KA_Operation::derive_secret(), and ECIES_System_Params().

operator=()

ECIES_System_Params & Botan::ECIES_System_Params::operator= ( const ECIES_System_Params & )

delete

secret_length()

size_t Botan::ECIES_KA_Params::secret_length ( ) const

inlineinherited

Definition at line 79 of file ecies.h.

{ return m_length; }

Referenced by Botan::ECIES_KA_Operation::derive_secret().

single_hash_mode()

bool Botan::ECIES_KA_Params::single_hash_mode ( ) const

inlineinherited

Definition at line 81 of file ecies.h.

                                           {
         return (m_flags & ECIES_Flags::SingleHashMode) == ECIES_Flags::SingleHashMode;
      }

Referenced by Botan::ECIES_KA_Operation::derive_secret().

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

• src/lib/pubkey/ecies/ecies.h
• src/lib/pubkey/ecies/ecies.cpp