upgrade pycrypto to version 2.6.1

[ohanar]

Source Tarball: pycrypto-2.6.1.tar.gz

Component: packages: standard

Author: R. Andrew Ohana

Branch/Commit: u/ohanar/pycrypto2.6.1 @ 4e7c6f4

Reviewer: Volker Braun

Issue created by migration from https://trac.sagemath.org/ticket/15531

[vbraun]

Reviewer: Volker Braun

[vbraun]

comment:2

lgtm

[vbraun]

comment:3

sage -t --long src/sage/crypto/block_cipher/miniaes.py  # 1 doctest failed
sage -t --long src/sage/crypto/block_cipher/sdes.py  # 1 doctest failed
sage -t --long src/sage/crypto/classical_cipher.py  # 1 doctest failed
sage -t --long src/sage/crypto/stream_cipher.py  # 1 doctest failed
sage -t --long src/sage/crypto/util.py  # 1 doctest failed
sage -t --long src/sage/crypto/public_key/blum_goldwasser.py  # 1 doctest failed
sage -t --long src/sage/monoids/string_monoid.py  # 1 doctest failed
sage -t --long src/sage/monoids/string_monoid_element.py  # 1 doctest failed

[vbraun]

comment:4

This is actually a duplicate of #14854