Douglas Bagnall added the comment:
Thanks paul.j3 and r.david.murray,
I see your points.
What led me to this was automatically generating command line options from a
Gstreamer element, mapping
the Gstreamer property types to Python types. Then I special-cased the
action=store_true
New submission from Douglas Bagnall:
A line like this:
parser.add_argument('--hello', action=store_true, type=bool)
causes a TypeError in 2.7 and 3.4:
File /usr/lib/python3.4/argparse.py, line 1344, in add_argument
action = action_class(**kwargs)
TypeError: __init__() got
douglas bagnall doug...@paradise.net.nz added the comment:
I am no kind of crypto expert, but from what I read, there are no known attacks
on chacha8 or salsa20/12 better than brute-forcing the key, and distinguishing
the stream from random or deducing state would be considered an attack
douglas bagnall doug...@paradise.net.nz added the comment:
Earlier this year I wrote Python wrappers for a number of generators:
https://github.com/douglasbagnall/riffle
They are mostly cryptographic stream ciphers from the ESTREAM[1] project, but I
was also interested in dSFMT[2], which
douglas bagnall doug...@paradise.net.nz added the comment:
A bit more on the state size and period of the stream ciphers.
Chacha and Salsa use 64 bytes (512 bits) of state (vs ~2.5kB for MT19937).
Its counter is 64 bits, and its seed can be 320 bits (in cipher-speak, the seed
is split between
