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Questions tagged [skein]

10 questions
30
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3 answers

xkcd: Externalities

So the April 1, 2013 xkcd Externalities web comic features a Skein 1024 1024 hash breaking contest. I'm assuming that this must be nothing more than a brute force effort where random strings are hashed in an effort to match Randall's posted hash? Is…
Tom
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Does the security of Skein as a hash imply the security of Threefish as a block cipher?

The Skein hash proposed for SHA-3 boasts some impressive speed results, which I suspect would be applicable for the Threefish block cipher at its heart - but, if Skein is approved for SHA-3, would this imply that Threefish is considered secure as…
bdonlan
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How do I kill a YARN container to test failure scenarios

I'm building an application on AWS EMR using YARN (and Dask) version Hadoop 2.7.3-amzn-1. I'm trying to test various failure scenarios and I'm wanting to simulate a container failure. I can't seem to find an easy way to kill a YARN container - only…
gallamine
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Using Skein for File integrity checking

I'd like to know that is it possible to use skein instead of MD5 or SHA1 for file integrity checking? Is that really better or faster than SHA1 and MD5? Update: Regarding your responses. Actually I'd like to use a faster algorithm for Host IDS like…
Steward
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Why am I getting different results from different skein hash APIs?

I've tried a few. Python's pyskein; a javascript skein calculator I found online somewhere; and the skein calculator being used for xkcd's april fools' comic all give the same output for a given input. But when I download version 1.3 of the…
Josh
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Dask - new cluster creation fails, HDFS files owed by "dask" user

I have setup dask on my MapR cluster's edge node following the directions here: https://gateway.dask.org/install-hadoop.html Per those directions, I'm testing the install by running the following in a JupyterHub spawned ipython notebook: from…
Matt Mc
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Random "/usr/bin/env: 'python3.6': No such file or directory" when working with dask-yarn

I am using dask-yarn in local mode in a mapr-cluster. I have unpacked the virtual environment in a shared folder between the nodes. Some times the workers ( containers ) start properly in the cluster, but sometimes the containers have the next error…
willson albert
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Is there a Skein implementation that works on on AWS Lambda?

Is it possible to implement a Skein tree hash across AWS lambda functions? In other words using Lambda functions for parallelism.
Koko Vec
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Redshift AES Decrypt UDF

I need to load some encrypted data into AWS Redshift table (well, a few fields with encrypted data) and already have a Java Decrypt function that I'll need to port to Python UDF. I'm using AES-256, and Skein hash function…
Pasha
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Getting Skein to Work with Python

I've been trying for quite a while now. After I finally got Skein for python to install from here. I keep getting the following error: from _skein import skein256, skein512, skein1024, threefish ImportError: DLL load failed: %1 is not a valid…
Freesnöw
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