simplify some language (#4495)
* simplify some language
* Update reference.rst
* wrap
* remove trailing whitespace
the github web editor is bad and should feel bad
diff --git a/docs/x509/reference.rst b/docs/x509/reference.rst
index ef734f8..07a692a 100644
--- a/docs/x509/reference.rst
+++ b/docs/x509/reference.rst
@@ -462,8 +462,13 @@
certificate validation is a complex problem that involves much more
than just signature checks.
- An example on how to check if a certificate signature is correct with a method
- on the public key (this does not mean that the cert should be trusted):
+ To validate the signature on a certificate you can do the following.
+ Note: This only verifies that the certificate was signed with the
+ private key associated with the public key provided and does not
+ perform any of the other checks needed for secure certificate
+ validation. Additionally, this example will only work for RSA public
+ keys with ``PKCS1v15`` signatures, and so it can't be used for general
+ purpose signature verification.
.. doctest::