search for: truism

Displaying 10 results from an estimated 10 matches for "truism".

Did you mean: truisms
2007 Mar 30
7
Some additional attacks on Cookie Session
...ng* the secret to the data. This can be used to speed up the brute force, by precomputing the hash of the data, and starting the hash function on the candidate session. The correct way to use the key is to repeatedly XOR it to the data, not append it. 5. Key Storage One of the most common crypto truisms developers know is "Don''t store passwords in the clear". Backups are made, files are transferred, and the bad guys job is made too easy. In cookie_store, the app''s key is stored directly in the clear. No ephemeral key is used. If an attacker see''s this, it&...
2009 Mar 04
17
Community: How to deal with attempts at sabotage
Hi all, The underlying assumption of membership in any community is that your participation is at worst neutral, and if possible positive. Communities, online or off, generally do what they can to protect themselves from detrimental influences, which is where policies, politeness, moderators, and all that come into play. Puppet''s community has been both fortunate and awesome,
2005 Mar 12
2
any book and tutorial about how to manipulate data with R/S+
In real world, data manipulation might take even longer time and more effort than statistical analysis and modeling. Does anyone know a good book and tutorial about data manupulation? Thank you so much. -- WenSui Liu, MS MA Senior Decision Support Analyst Division of Health Policy and Clinical Effectiveness
2003 Jan 16
0
Summary: Faster way for weighted matching
..., each = l.x ) ) dim( z ) <- c( l.x, l.w ) 3) find s as follows: s <- pmax( abs( w - min(x) ), abs( w - max(x) ) ) 4) use colSums() instead of apply(, , sum) Thomas W Blackwell <tblackw at umich.edu>: Matrix z is potentially enormous. On large matrices, it's a familiar truism that as.vector(z %*% rep(1, dim(z)[2])) is MUCH faster than apply(z, 1, sum). The equivalent "inline" code for "max" is not so nice. So here's an alternative version (untested): z <- abs(outer(w, x, "-")) wid <- seq(along=w) top <- 1 + round(m...
2020 Jun 24
2
[RFC] Compiled regression tests.
...IR-level test (unittests are relevant for data-structures and non-IR internals IMO) we would implement this way that we can't just implement with lit/FileCheck? My argument is not that those tests cannot be written using FileCheck, but tend (not all of them) to check more than relevant, may be truisms and are difficult to reverse-engineer and to update when something changes. Michael
2009 Sep 08
3
OpenSSH and keystroke timings
Old news, but ... http://lwn.net/Articles/298833/ I first posted about this back in 2001 and it's still not resolved: http://osdir.com/ml/ietf.secsh/2001-09/msg00000.html 1) high latency networks are a reality that will never go away. In fact they will only become more prevalent since distributed networks continue to grow broader but (surprise) the speed of light remains a constant. 2)
2008 Oct 30
0
General development funding: discussion and survey
...s here on the list. Use the form below ONLY for cataloging your willingness to pay for Asterisk work via some idealized mechanism. If you're a coder, a survey about that may follow later which captures your willingness to work for money, but I suspect that's a pretty well- known truism that needs little confirmation. Feel free to forward this note to others (your boss, your co-workers, other less-involved Asterisk coders) who may have an interest in this type of funding approach. I figure a month would be a reasonable time for letting this form collect data, but that'...
2020 Jun 24
7
[RFC] Compiled regression tests.
Hello LLVM community, For testing IR passes, LLVM currently has two kinds of tests: 1. regression tests (in llvm/test); .ll files invoking opt, and matching its text output using FileCheck. 2. unittests (in llvm/unittests); Google tests containing the IR as a string, constructing a pass pipeline, and inspecting the output using code. I propose to add an additional kind of test, which I call
2008 Jan 15
32
A challenge from a CMS implementer
Hey guys RoR evangelists keep telling us that they have the #1 framework for developing webapps. OK, but show us something that works and is useful to many people out there. I could be wrong, but it doesn''t seem as if there is anything that qualifies, as yet? So I''ve got a little challenge for you: come up with a decent plugin WYSIWYG visual editor for CMS. There are several
2010 Apr 07
53
ZFS RaidZ recommendation
I have been searching this forum and just about every ZFS document i can find trying to find the answer to my questions. But i believe the answer i am looking for is not going to be documented and is probably best learned from experience. This is my first time playing around with open solaris and ZFS. I am in the midst of replacing my home based filed server. This server hosts all of my media