83 lines
1.8 KiB
C++
83 lines
1.8 KiB
C++
#ifndef AXOLOTL_SESSION_HH_
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#define AXOLOTL_SESSION_HH_
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#include "axolotl/ratchet.hh"
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namespace axolotl {
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class Account;
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struct RemoteKey {
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std::uint32_t id;
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Curve25519PublicKey key;
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};
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enum struct MessageType {
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PRE_KEY_MESSAGE = 0,
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MESSAGE = 1,
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};
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struct Session {
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Session();
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Ratchet ratchet;
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ErrorCode last_error;
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bool received_message;
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RemoteKey alice_identity_key;
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Curve25519PublicKey alice_base_key;
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std::uint32_t bob_one_time_key_id;
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std::size_t new_outbound_session_random_length();
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std::size_t new_outbound_session(
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Account const & local_account,
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Curve25519PublicKey const & identity_key,
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RemoteKey const & one_time_key,
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std::uint8_t const * random, std::size_t random_length
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);
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std::size_t new_inbound_session(
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Account & local_account,
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std::uint8_t const * one_time_key_message, std::size_t message_length
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);
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bool matches_inbound_session(
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std::uint8_t const * one_time_key_message, std::size_t message_length
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);
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MessageType encrypt_message_type();
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std::size_t encrypt_message_length(
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std::size_t plaintext_length
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);
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std::size_t encrypt_random_length();
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std::size_t encrypt(
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std::uint8_t const * plaintext, std::size_t plaintext_length,
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std::uint8_t const * random, std::size_t random_length,
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std::uint8_t * message, std::size_t message_length
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);
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std::size_t decrypt_max_plaintext_length(
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MessageType message_type,
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std::uint8_t const * message, std::size_t message_length
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);
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std::size_t decrypt(
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MessageType message_type,
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std::uint8_t const * message, std::size_t message_length,
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std::uint8_t * plaintext, std::size_t max_plaintext_length
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);
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};
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} // namespace axolotl
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#endif /* AXOLOTL_SESSION_HH_ */
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