I2CP operates as a message-based protocol, facilitating communication between two primary components: the (the application) and the Router (the I2P node).
: I2CP handles the high-level requests from applications (e.g., "send this data to this destination") and translates them into the lower-level tunnel and Garlic routing mechanisms used by the I2P network. i2p-cp
To establish a connection through the network, a client follows a specific handshake and setup sequence via I2CP: While the primary I2P router is written in
Are you interested in an I2CP client in a specific language, or A Scalable Framework for Anonymous Communication - I2P I2CP allows clients written in C++
I2CP is essential for the I2P ecosystem because it provides a consistent API for various programming languages. While the primary I2P router is written in Java, I2CP allows clients written in C++, Python, or Go to interface with it seamlessly. This has enabled the integration of I2P into diverse projects, such as the Monero cryptocurrency for transaction privacy.
: A CreateSession message is sent, containing the application's configuration and its cryptographic Destination (public key).