[3.6] bpo-19180: Updated references for RFC 1750, RFC 3280 & RFC 4366

* RFC 1750 has been been obsoleted by RFC 4086.
* RFC 3280 has been obsoleted by RFC 5280.
* RFC 4366 has been obsoleted by RFC 6066.
(cherry picked from commit 63c2c8a)

Author: ncoghlan

Doc/library/ssl.rst

@@ -374,9 +374,9 @@ Certificate handling
    Verify that *cert* (in decoded format as returned by
    :meth:`SSLSocket.getpeercert`) matches the given *hostname*.  The rules
    applied are those for checking the identity of HTTPS servers as outlined
-   in :rfc:`2818` and :rfc:`6125`.  In addition to HTTPS, this function
-   should be suitable for checking the identity of servers in various
-   SSL-based protocols such as FTPS, IMAPS, POPS and others.
+   in :rfc:`2818`, :rfc:`5280` and :rfc:`6125`.  In addition to HTTPS, this
+   function should be suitable for checking the identity of servers in
+   various SSL-based protocols such as FTPS, IMAPS, POPS and others.
 
    :exc:`CertificateError` is raised on failure. On success, the function
    returns nothing::
@@ -820,7 +820,7 @@ Constants
 .. data:: HAS_SNI
 
    Whether the OpenSSL library has built-in support for the *Server Name
-   Indication* extension (as defined in :rfc:`4366`).
+   Indication* extension (as defined in :rfc:`6066`).
 
    .. versionadded:: 3.2
 
@@ -2306,14 +2306,11 @@ successful call of :func:`~ssl.RAND_add`, :func:`~ssl.RAND_bytes` or
    `RFC 1422: Privacy Enhancement for Internet Electronic Mail: Part II: Certificate-Based Key Management <https://www.ietf.org/rfc/rfc1422>`_
        Steve Kent
 
-   `RFC 1750: Randomness Recommendations for Security <https://www.ietf.org/rfc/rfc1750>`_
-       D. Eastlake et. al.
+   `RFC 4086: Randomness Requirements for Security <http://datatracker.ietf.org/doc/rfc4086/>`_
+       Donald E., Jeffrey I. Schiller
 
-   `RFC 3280: Internet X.509 Public Key Infrastructure Certificate and CRL Profile <https://www.ietf.org/rfc/rfc3280>`_
-       Housley et. al.
-
-   `RFC 4366: Transport Layer Security (TLS) Extensions <https://www.ietf.org/rfc/rfc4366>`_
-       Blake-Wilson et. al.
+   `RFC 5280: Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile <http://datatracker.ietf.org/doc/rfc5280/>`_
+       D. Cooper
 
    `RFC 5246: The Transport Layer Security (TLS) Protocol Version 1.2 <https://tools.ietf.org/html/rfc5246>`_
        T. Dierks et. al.

Modules/_ssl.c

@@ -4475,7 +4475,7 @@ _ssl.RAND_add
 Mix string into the OpenSSL PRNG state.
 
 entropy (a float) is a lower bound on the entropy contained in
-string.  See RFC 1750.
+string.  See RFC 4086.
 [clinic start generated code]*/
 
 static PyObject *

Modules/clinic/_ssl.c.h

@@ -839,7 +839,7 @@ PyDoc_STRVAR(_ssl_RAND_add__doc__,
 "Mix string into the OpenSSL PRNG state.\n"
 "\n"
 "entropy (a float) is a lower bound on the entropy contained in\n"
-"string.  See RFC 1750.");
+"string.  See RFC 4086.");
 
 #define _SSL_RAND_ADD_METHODDEF    \
     {"RAND_add", (PyCFunction)_ssl_RAND_add, METH_VARARGS, _ssl_RAND_add__doc__},