gnu: Add python-certauth.

* gnu/packages/python-crypto.scm (python-certauth): New variable.

gnu/packages/python-crypto.scm

@@ -24,6 +24,7 @@
 ;;; Copyright © 2020 Alexandros Theodotou <alex@zrythm.org>
 ;;; Copyright © 2020 Justus Winter <justus@sequoia-pgp.org>
 ;;; Copyright © 2020 Vinicius Monego <monego@posteo.net>
+;;; Copyright © 2021 Maxim Cournoyer <maxim.cournoyer@gmail.com>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -468,6 +469,32 @@ (define-public python-keyrings.alt
 risk.")
     (license license:expat)))
 
+(define-public python-certauth
+  (package
+    (name "python-certauth")
+    (version "1.3.0")
+    (source
+     (origin
+       (method url-fetch)
+       (uri (pypi-uri "certauth" version))
+       (sha256
+        (base32
+         "1yxqfb5131wahjyw9pxz03bq476rcfx62s6k53xx4cqbzzgdaqkq"))))
+    (build-system python-build-system)
+    (propagated-inputs
+     `(("python-pyopenssl" ,python-pyopenssl)
+       ("python-tldextract" ,python-tldextract)))
+    (native-inputs
+     `(("python-pytest-cov" ,python-pytest-cov)))
+    (home-page "https://github.com/ikreymer/certauth")
+    (synopsis "Certificate authority creation tool")
+    (description "This package provides a small library, built on top of
+pyOpenSSL, which allows for creating a custom certificate authority (CA)
+certificate, and generating on-demand dynamic host certs using that CA
+certificate.  It is most useful for use with a man-in-the-middle HTTPS proxy,
+for example, for recording or replaying web content.")
+    (license license:expat)))
+
 (define-public python-certifi
   (package
     (name "python-certifi")