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Shell Programming and Scripting
Using Python to grab data from a website
Post 302420152 by jl487 on Monday 10th of May 2010 07:57:39 PM
05-10-2010
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LEARN ABOUT DEBIAN
yhsm-linux-add-entropy
yhsm-linux-add-entropy(1) General Commands Manual yhsm-linux-add-entropy(1) NAME
yhsm-linux-add-entropy - Seed the Linux entropy pool with data from YubiHSM TRNG SYNOPSIS
yhsm-linux-add-entropy [options] DESCRIPTION
The YubiHSM uses "Avalanche Noise" TRNG together with USB SOF jitter sampling to feed a DRBG_CTR algorithm (NIST publication SP800-90). The result has been verified as being random data of good quality by at least one third party cryptographer. <http://sartryck.idg.se/Art/ Yubihsm_1_TW072011.html> Use this program to add random data from the YubiHSM to the entropy pool of your Linux operating system. This is useful whenever lots of random data is needed, such as when generating chryptographic keys (GPG-keys), on a server terminating SSL sessions etc. You may run this script from cron, or in a while-loop. Make sure it does not run at the same time as something else accessing the YubiHSM though, or the two tasks may interrupt each other - probably making both fail. OPTIONS
-D, --device device file name (default: /dev/ttyACM0). -v, --verbose enable verbose operation. -c, --count number of iterations to run (default: 100). -r, --ratio bits per byte read to use. 8 is probably fine, but as a conservative default 2 is used. --debug enable debug printout, including all data sent to/from YubiHSM. EXIT STATUS
0 Entropy added successfully 1 Failure BUGS
Report python-pyhsm/yhsm-linux-add-entropy bugs in the issue tracker <https://github.com/Yubico/python-pyhsm/issues/> SEE ALSO
The python-pyhsm home page <https://github.com/Yubico/python-pyhsm/> YubiHSMs can be obtained from Yubico <http://www.yubico.com/>. python-pyhsm December 2011 yhsm-linux-add-entropy(1)