Document wycheproof revision we're current as of (#4390)
* Document wycheproof revision we're current as of
* Wycheproof is a real word!
* line length
diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst
index d28e323..506afd8 100644
--- a/docs/development/test-vectors.rst
+++ b/docs/development/test-vectors.rst
@@ -8,12 +8,23 @@
using an official vector file as input to verify consistency between
implemented backends.
-Vectors are kept in the `cryptography_vectors` package rather than within our
+Vectors are kept in the ``cryptography_vectors`` package rather than within our
main test suite.
Sources
-------
+Project Wycheproof
+~~~~~~~~~~~~~~~~~~
+
+We run vectors from `Project Wycheproof`_ -- a collection of known edge-cases
+for various cryptographic algorithms. These are not included in the repository
+(or ``cryptography_vectors`` package), but rather cloned from Git in our
+continuous integration environments.
+
+We have ensured all test vectors are used as of commit
+``f89f4c53a8845fcefcdb9f14ee9191dbe167e3e3``.
+
Asymmetric ciphers
~~~~~~~~~~~~~~~~~~
@@ -511,6 +522,7 @@
.. _`NIST`: https://www.nist.gov/
.. _`IETF`: https://www.ietf.org/
+.. _`Project Wycheproof`: https://github.com/google/wycheproof
.. _`NIST CAVP`: https://csrc.nist.gov/projects/cryptographic-algorithm-validation-program
.. _`Bruce Schneier's vectors`: https://www.schneier.com/code/vectors.txt
.. _`Camellia page`: https://info.isl.ntt.co.jp/crypt/eng/camellia/
diff --git a/docs/spelling_wordlist.txt b/docs/spelling_wordlist.txt
index 160971d..225ee3a 100644
--- a/docs/spelling_wordlist.txt
+++ b/docs/spelling_wordlist.txt
@@ -105,5 +105,6 @@
versioning
wildcard
WoSign
+Wycheproof
Xcode
XEX