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A stable and secure tunnel based on KCP with N:M multiplexing and FEC
...Available for ARM, MIPS, 386 and AMD64. kcptun is shipped with builtin packet encryption powered by various block encryption algorithms and works in Cipher Feedback Mode, for each packet to be sent, the encryption process will start from encrypting a nonce from the system entropy, so encryption to same plaintexts never leads to a same ciphertexts thereafter. kcptun made use of ReedSolomon-Codes to recover lost packets, which requires massive amount of computation, a low-end ARM device cannot satisfy kcptun well. To unleash the full potential of kcptun, a multi-core x86 homeserver CPU like AMD Opteron is recommended. ...
...The project is written in Go and is aimed at users who need a low-level tunnel that can operate in restricted or heavily filtered network environments. It is described as an alpha-stage tool, so compatibility and protocol behavior may change between releases. Paqet is most relevant to technical users who are comfortable with raw sockets, server-client tunnel setup, and system-level networking requirements. It should be used responsibly for authorized connectivity, testing, and research scenarios where the user controls the infrastructure.