Struct EncryptedSession 

pub struct EncryptedSession {
    pub salt: i64,
    pub time_offset: i32,
    /* private fields */
}

MTProto 2.0 encrypted session state.

Wraps an AuthKey and tracks per-session counters (session_id, seq_no, last_msg_id, server salt). Use EncryptedSession::pack to encrypt outgoing requests and EncryptedSession::unpack to decrypt incoming server frames.

Fields

salt: i64

Current server salt to include in outgoing messages.

time_offset: i32

Clock skew in seconds vs. server.

Implementations

impl EncryptedSession

pub fn new(auth_key: [u8; 256], first_salt: i64, time_offset: i32) -> Self

Create a new encrypted session from the output of authentication::finish.

pub fn pack_serializable<S: Serializable>(&mut self, call: &S) -> Vec<u8>

Serialize and encrypt a TL function into a wire-ready byte vector.

Layout of the plaintext before encryption:

salt:       i64
session_id: i64
msg_id:     i64
seq_no:     i32
body_len:   i32
body:       [u8; body_len]

Like pack but only requires Serializable (not RemoteCall). Useful for generic wrapper types like InvokeWithLayer<InitConnection<X>> where the return type is determined by the inner call, not the wrapper.

pub fn pack<R: RemoteCall>(&mut self, call: &R) -> Vec<u8>

Encrypt and frame a RemoteCall into a ready-to-send MTProto message.

Returns the encrypted bytes to pass directly to the transport layer.

pub fn unpack( &self, frame: &mut Vec<u8>, ) -> Result<DecryptedMessage, DecryptError>

Decrypt an encrypted server frame.

frame should be a raw frame received from the transport (already stripped of the abridged-length prefix).

pub fn auth_key_bytes(&self) -> [u8; 256]

Return the auth_key bytes (for persistence).

pub fn session_id(&self) -> i64

Return the current session_id.