lime_double_ratchet_protocol.hpp File Reference

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Namespaces
	lime
	lime::double_ratchet_protocol
	Group in this namespace all the functions related to building or parsing double ratchet packets.

Enumerations
enum	lime::double_ratchet_protocol::DR_message_type : uint8_t { lime::double_ratchet_protocol::DR_message_type::X3DH_init_flag = 0x01, lime::double_ratchet_protocol::DR_message_type::payload_direct_encryption_flag = 0x02, lime::double_ratchet_protocol::DR_message_type::KEM_pk_index = 0x04 }
	DR message type byte bit mapping. More...
enum	lime::double_ratchet_protocol::DR_X3DH_OPk_flag : uint8_t { lime::double_ratchet_protocol::DR_X3DH_OPk_flag::withoutOPk =0x00, lime::double_ratchet_protocol::DR_X3DH_OPk_flag::withOPk =0x01 }
	haveOPk byte from X3DH init message mapping More...

Functions
template<typename Curve >
constexpr size_t	lime::double_ratchet_protocol::headerSize (uint8_t messageType) noexcept
	return the size of the double ratchet packet header More...
template<typename Curve >
constexpr size_t	lime::double_ratchet_protocol::X3DHinitSize (bool haveOPk, typename std::enable_if_t<!std::is_base_of_v< genericKEM, Curve >, bool >=true) noexcept
	return the size of the X3DH init packet included in the double ratchet packet header More...
template<typename Algo >
constexpr size_t	lime::double_ratchet_protocol::X3DHinitSize (bool haveOPk, typename std::enable_if_t< std::is_base_of_v< genericKEM, Algo >, bool >=true) noexcept
	return the size of the X3DH init packet included in the double ratchet packet header More...
template<typename Curve >
void	lime::double_ratchet_protocol::buildMessage_X3DHinit (std::vector< uint8_t > &message, const DSA< Curve, lime::DSAtype::publicKey > &Ik, const X< Curve, lime::Xtype::publicKey > &Ek, const uint32_t SPk_id, const uint32_t OPk_id, const bool OPk_flag) noexcept
	build an X3DH init message to insert in DR header EC only version More...
template<typename Algo >
void	lime::double_ratchet_protocol::buildMessage_X3DHinit (std::vector< uint8_t > &message, const DSA< typename Algo::EC, lime::DSAtype::publicKey > &Ik, const X< typename Algo::EC, lime::Xtype::publicKey > &Ek, const K< typename Algo::KEM, lime::Ktype::cipherText > &Ct, const uint32_t SPk_id, const uint32_t OPk_id, const bool OPk_flag) noexcept
template<typename Curve >
void	lime::double_ratchet_protocol::parseMessage_X3DHinit (const std::vector< uint8_t >message, DSA< Curve, lime::DSAtype::publicKey > &Ik, X< Curve, lime::Xtype::publicKey > &Ek, uint32_t &SPk_id, uint32_t &OPk_id, bool &OPk_flag) noexcept
	Parse the X3DH init message and extract peer Ik, peer Ek, self SPk id and seld OPk id if present This is for EC only version. More...
template<typename Algo >
void	lime::double_ratchet_protocol::parseMessage_X3DHinit (const std::vector< uint8_t >message, DSA< typename Algo::EC, lime::DSAtype::publicKey > &Ik, X< typename Algo::EC, lime::Xtype::publicKey > &Ek, K< typename Algo::KEM, lime::Ktype::cipherText > &Ct, uint32_t &SPk_id, uint32_t &OPk_id, bool &OPk_flag) noexcept
template<typename Curve >
bool	lime::double_ratchet_protocol::parseMessage_get_X3DHinit (const std::vector< uint8_t > &message, std::vector< uint8_t > &X3DH_initMessage) noexcept
	check the message for presence of X3DH init in the header, extract it if there is one More...

Variables
constexpr uint8_t	lime::double_ratchet_protocol::DR_v01 =0x01