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<H1>[pycrypto] RandomPool is now deprecated</H1>
<B>Dwayne C. Litzenberger</B>
<A HREF="mailto:pycrypto%40lists.dlitz.net?Subject=%5Bpycrypto%5D%20RandomPool%20is%20now%20deprecated&In-Reply-To="
TITLE="[pycrypto] RandomPool is now deprecated">dlitz at dlitz.net
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<I>Wed Sep 17 22:23:58 CST 2008</I>
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<PRE>At long last, using RandomPool now results in a DeprecationWarning. The
recommended way to get random bytes in new programs is to do something like
this:
from Crypto import Random
...
rng = Random.new() # rng is a file-like object
...
data = rng.read(32)
This is okay too:
from Crypto import Random
...
data = Random.new().read(32)
If you need a drop-in replacement for old code that uses the RandomPool
interface, you can replace this:
from Crypto.Util.randpool import RandomPool
with this:
from Crypto.Random import RandomPoolCompat as RandomPool
The new code will be included in the next release of PyCrypto, and is
currently available in the git repository[1]. Please let me know if you
find any problems.
On POSIX systems (where os.name == "posix"), we currently just read from
/dev/urandom. That should work well enough on the free *nix platforms
(Linux, modern BSDs, etc.), but please let me know if there are any systems
with bad /dev/urandom devices.
Cheers,
- Dwayne
[1] <A HREF="git://git.pycrypto.org:9419/crypto/pycrypto-2.0.x.git">git://git.pycrypto.org:9419/crypto/pycrypto-2.0.x.git</A>
<A HREF="http://gitweb.pycrypto.org/?p=crypto/pycrypto-2.0.x.git">http://gitweb.pycrypto.org/?p=crypto/pycrypto-2.0.x.git</A>
latest commit-id: 2d3846eefd728d6cf9fd9aa9f8e94d1a77107908
--
Dwayne C. Litzenberger <<A HREF="http://lists.dlitz.net/cgi-bin/mailman/listinfo/pycrypto">dlitz at dlitz.net</A>>
Key-signing key - 19E1 1FE8 B3CF F273 ED17 4A24 928C EC13 39C2 5CF7
Annual key (2008) - 4B2A FD82 FC7D 9E38 38D9 179F 1C11 B877 E780 4B45
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