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Noise provides a simple pattern language and naming scheme for 2-party DH-based cryptographic handshakes, covering the different possibilities for client and/or server authentication, post/pre-specified peers, identity-hiding, and 0-RTT encryption. These patterns are easily compiled into linear sequences of cryptographic operations using your favorite ECDH, hash, and cipher functions. Extensions are in the works for additional cryptographic choices, e.g. post-quantum options for "hybrid forward-secrecy", as well as negotiation frameworks.