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Universally composable security

by Yee Wei Law - Monday, 13 March 2023, 1:19 PM
 

First proposed by Canetti [Can01], the paradigm of universally composable security guarantees security even when a secure protocol is composed with an arbitrary set of protocols, or more generally when the protocol is used as a component of an arbitrary system.

  • It guarantees security even when an unbounded number of protocol instances are executed concurrently in an adversarially controlled manner.
  • It is an essential property for maintaining security of cryptographic protocols in complex and unpredictable environments such as the Internet.

References

[Can01] R. Canetti, Universally composable security: a new paradigm for cryptographic protocols, in Proceedings 42nd IEEE Symposium on Foundations of Computer Science, 2001, pp. 136–145. https://doi.org/10.1109/SFCS.2001.959888.
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USRP SDRs

by Yee Wei Law - Tuesday, 11 July 2023, 10:47 PM
 
Work in progress

Ettus’s wiki for B210.

Ettus’ wiki for X300/X310

Setting up UHD through Anaconda and GNU Radio.

Verifying operation.

PySDR: A Guide to SDR and DSP using Python, set up UHD following Ch. 6 (original instructions). Note highest Python version supported is 3.9. Use conda to save trouble.

Stuck at ldconfig:

/sbin/ldconfig.real: Can't link /usr/lib/wsl/lib/libnvoptix_loader.so.1 to libnvoptix.so.1
/sbin/ldconfig.real: /usr/lib/wsl/lib/libcuda.so.1 is not a symbolic link

UHD Python API

>>> x310 = uhd.usrp.MultiUSRP("type=x300")
[INFO] [X300] X300 initialization sequence...
Traceback (most recent call last):
  File "stdin", line 1, in module
  File "C:\Users\lawyw\Miniconda3\envs\gnuradio\Lib\site-packages\uhd\usrp\multi_usrp.py", line 30, in __init__
    super(MultiUSRP, self).__init__(args)
RuntimeError: RuntimeError: Expected FPGA compatibility number 39.0, but got 13.0:
The FPGA image on your device is not compatible with this host code build.
Download the appropriate FPGA images for this version of UHD.
As an Administrator, please run:

"C:\Users\lawyw\Miniconda3\envs\gnuradio\Library\bin\uhd\utils\uhd_images_downloader.py"

Then burn a new image to the on-board flash storage of your
USRP X3xx device using the image loader utility. Use this command:

"C:\Users\lawyw\Miniconda3\envs\gnuradio\Library\bin\uhd_image_loader" --args="type=x300,addr=192.168.10.2"

For more information, refer to the UHD manual:

 http://files.ettus.com/manual/page_usrp_x3x0.html#x3x0_flash

References

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