gnu: Add go-github-com-flynn-noise.

* gnu/packages/golang.scm (go-github-com-flynn-noise): New variable.

gnu/packages/golang.scm

@@ -8324,3 +8324,31 @@ (define-public go-golang-org-x-term
     (description "@code{term} provides support functions for dealing with
 terminals, as commonly found on Unix systems.")
     (license license:bsd-3)))
+
+(define-public go-github-com-flynn-noise
+  (package
+    (name "go-github-com-flynn-noise")
+    (version "1.0.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/flynn/noise")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32
+         "1j6phxyqx06wcqxjpin696fkp85s76qcp3i2f7fv6q2fb6618f6y"))))
+    (build-system go-build-system)
+    (arguments
+     '(#:import-path "github.com/flynn/noise"))
+    (propagated-inputs
+     `(("go-gopkg-in-check-v1" ,go-gopkg-in-check-v1)
+       ("go-golang-org-x-crypto" ,go-golang-org-x-crypto)))
+    (home-page "https://github.com/flynn/noise")
+    (synopsis "Go implementation of the Noise protocol framework")
+    (description "@code{noise} implements the Noise protocol framework.  Noise
+is a low-level framework for building crypto protocols.  Noise protocols
+support mutual and optional authentication, identity hiding, forward secrecy,
+zero round-trip encryption, and other advanced features.")
+    (license license:bsd-3)))