Description: SILC Secure Internet Live Conferencing
Keywords: SILC, secure, chat, protocol, cipher, encrypt, SKE

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Function silc_client_add_channel_private_key SYNOPSIS
        SilcBool
        silc_client_add_channel_private_key(SilcClient client,
                                            SilcClientConnection conn,
                                            SilcChannelEntry channel,
                                            const char *name,
                                            char *cipher,
                                            char *hmac,
                                            unsigned char *key,
                                            SilcUInt32 key_len,
                                            SilcChannelPrivateKey *ret_key);
DESCRIPTION
        Adds private key for channel. When channel has private key then the
        messages are encrypted using that key. All clients on the channel
        must also know the key in order to decrypt the messages. However,
        it is possible to have several private keys per one channel. In this
        case only some of the clients on the channel may know the one key
        and only some the other key.  The `name' can be application given
        name for the key.  This returns the created key to the 'ret_key'
        pointer if it is non-NULL;

        If `cipher' and/or `hmac' is NULL then default values will be used
        (aes-256-cbc for cipher and hmac-sha1-96 for hmac).

        The private key for channel is optional. If it is not set then the
        channel messages are encrypted using the channel key generated by the
        server. However, setting the private key (or keys) for the channel
        significantly adds security. If more than one key is set the library
        will automatically try all keys at the message decryption phase. Note:
        setting many keys slows down the decryption phase as all keys has to
        be tried in order to find the correct decryption key. However, setting
        a few keys does not have big impact to the decryption performace.
NOTES
        NOTE: This is entirely local setting. The key set using this function
        is not sent to the network at any phase.

        NOTE: If the key material was originated by the SKE protocol (using
        silc_client_send_key_agreement) then the `key' MUST be the
        key->send_enc_key as this is dictated by the SILC protocol. However,
        currently it is not expected that the SKE key material would be used
        as channel private key. However, this API allows it.
Client Library Interface SilcClientConnectionStatus SilcClientRunning SilcClientStopped SilcClientConnectCallback SilcClient SilcClientConnection SilcChannelUser SilcClientStats SilcKeyAgreementStatus SilcKeyAgreementCallback SilcPrivateMessageKeys SilcChannelPrivateKey SilcAskPassphrase SilcVerifyPublicKey SilcGetAuthMeth SilcClientMessageType SilcClientOperations SilcClientParams silc_client_alloc silc_client_free silc_client_init silc_client_run silc_client_run_one silc_client_stop SilcClientConnectionParams silc_client_connect_to_server silc_client_connect_to_client silc_client_key_exchange silc_client_close_connection silc_client_send_channel_message silc_client_send_private_message silc_client_private_message_wait_init silc_client_private_message_wait_uninit silc_client_private_message_wait silc_client_on_channel silc_client_command_call SilcClientCommandReply silc_client_command_send silc_client_command_pending silc_client_add_private_message_key silc_client_add_private_message_key_ske silc_client_del_private_message_key silc_client_list_private_message_keys silc_client_free_private_message_keys silc_client_private_message_key_is_set silc_client_add_channel_private_key silc_client_del_channel_private_keys silc_client_del_channel_private_key silc_client_list_channel_private_keys silc_client_current_channel_private_key silc_client_send_key_agreement silc_client_perform_key_agreement silc_client_perform_key_agreement_stream silc_client_abort_key_agreement silc_client_set_away_message SilcClientMonitorStatus SilcClientFileError SilcClientFileMonitor SilcClientFileName SilcClientFileAskName silc_client_file_send silc_client_file_receive silc_client_file_close silc_client_attribute_add silc_client_attribute_del silc_client_attributes_get silc_client_attributes_request silc_client_nickname_format silc_client_nickname_parse

Copyright © 2001 - 2007 SILC Project SILC Project Website | SILC Toolkit Reference Manual Index