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• Find a Hash Collision, Win $100

  - by Mike C

  Margarity Kerns recently published a very nice article at SQL Server Central on using hash functions to detect changes in rows during the data warehouse load ETL process. On the discussion page for the article I noticed a lot of the same old arguments against using hash functions to detect change. After having this same discussion several times…

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• 256 Windows Azure Worker Roles, Windows Kinect and a 90's Text-Based Ray-Tracer

  - by Alan Smith

  For a couple of years I have been demoing a simple render farm hosted in Windows Azure using worker roles and the Azure Storage service. At the start of the presentation I deploy an Azure application that uses 16 worker roles to render a 1,500 frame 3D ray-traced animation. At the end of the presentation, when the animation was complete, I…

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• MCrypt Module, Rijndael-256

  - by WernerCD

  An outside company is redoing our company Intranet. During some basic usage I disovered that the "User Edit" screens, with the "Password: *" boxes have the password in plain text, with the text box "type=password" to "hide" the password. The passwords are not store in the database as plain text, they are stored encrypted using…

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• WARNING Retrying Bulk Insert for file:sqlldr due to Communication Error:256

  - by user702295

  WARNING Retrying Bulk Insert for file:sqlldr due to Communication Error:256 I am running my engine on Linux and am receiving an intermittent message "WARNING Retrying bulk insert for file: sqlldr due to communication Error: 256" The engine seems to have completed successfully, but it is not clear if this error caused some of…

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• 256 Worker Role 3D Rendering Demo is now a Lab on my Azure Course

  - by Alan Smith

  Ever since I came up with the crazy idea of creating an Azure application that would spin up 256 worker roles (please vote if you like it ) to render a 3D animation created using the Kinect depth camera I have been trying to think of something useful to do with it. I have also been busy working on developing training materials…

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• Enabling AES 256 GCM on Windows Server 2012 R2

  - by Feanaro

  I'd like to enable the use of the AES 256 GCM encryption instead of the AES 256 CBC. We already have ECC certificates based on ECDSA so that pre-requisite has been fullfilled. The certificate has a SHA-256 signature and uses a 256-bit ECC keyset. The ciphersuite I'd like to use: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384_P384 …

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• Create or Open an .xlsx file having >256 columns in MS Excel 2003

  - by Daredev

  I'm using Microsoft Office 2003. I have installed 'Microsoft Office Compatibility Pack for Word, Excel, Powerpoint 2007' to support new xml based formats (.docx, .xlsx, .pptx). Now given that I have installed Compatibility pack, can I create or open a Microsoft Excel 2007 file (.xlsx) having more than 256 columns in Excel…

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• Cygwin vim doesnt show 256 colors under ConEMu

  - by Tulhan

  When using cygwin vim under ConEmu, the default vim theme doesnt display correctly after I set t_Co=256. This is how ConEmu looks after the command: http://postimg.org/image/g6g98exbx/ My .vimrc: set nocompatible execute pathogen#infect() filetype plugin on syntax on set term=xterm set t_Co=256 let…

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• Two memory sticks, both of which are 256 MB, but still shows 256 MB?

  - by Shore

  Two memory sticks, both of which are 256 MB, but still shows 256 MB? What is the reason?

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• Apache maximum request number 256?

  - by victor hugo

  I have a very good server running an Apache instance with mod_jk for proxying the request to an Application server. I'm doing a load test and although I'm sending over 600 requests, the status worker keep showing this: 256 requests currently being processed, 0 idle workers I'm using 'prefork…

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• Optimizing Solaris 11 SHA-1 on Intel Processors

  - by danx

  SHA-1 is a "hash" or "digest" operation that produces a 160 bit (20 byte) checksum value on arbitrary data, such as a file. It is intended to uniquely identify text and to verify it hasn't been modified. Max Locktyukhin and others at Intel have improved the performance of the SHA-1 digest…

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• 256 colors, foreground and background

  - by push.cx

  This is a tale of two scripts and is related to a previous question. The two scripts are at http://gist.github.com/50692. The ansi.rb script displays all 256 colors on all 256 background colors. The ncurses.rb script displays all 256 foreground colors but the background displays the basic…

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• Tool to compute SHA256 Tree Hash

  - by Benjamin

  I've started using AWS Glacier, and noticed that it hashes the files using an algorithm called SHA-256 Tree Hash. To my surprise, this algorithm is different from SHA-256, so I can't use the tools I'm used to, to compare hashes and verify file integrity. Do you know a Windows tool, if…

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• TTY with 256 colors?

  - by timn

  With URxvt and xterm it is possible to use a virtual terminal supporting 256 colors instead of only eight. Since my Intel GMA graphics card is well-supported by the KMS framebuffer driver, I am exclusively working on the TTY. Unfortunately it only supports eight colors although with…

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• xterm 256 in ubuntu 8.04

  - by michael

  Hi, Can you please tell me if/how to enable xterm 256 in ubuntu 8.04? I was able to get that in 9.10, but how can I enable it in ubuntu 8.04? Thank you.

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• Sun Fire V20z also with AMD Opteron 256?

  - by Dan

  Hi, I have a SUN Fire V20z with two Opteron 244, which I'd like to upgrade. The official datasheet says that it supports up to Opteron 252. I was wondering if it would also work with AMD Opteron 256, cause they have the same core voltage and socket? Thanks for helping.

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• 256 Colors in Terminal over SSH on OSX 10.6

  - by user1104160

  I am using either Windows 7 or Ubuntu 12.04 and trying to SSH into OSX 10.6. Using Vim color schemes, I can emulate the colors on xterm-256 color on Linux and gVim on Windows. However, I would like the colors to follow through when I am SSHing onto the OSX. The default terminal,…

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• How to read more than 256 columns from an excel file (2007 format) using OLEDB

  - by Nan T

  I'm trying to import a excel file with more than 256 columns using OLEDB in C#. I tried all kinds of things, but it doesn't seem to be possible to read more than 256 columns from a excel (2007 format) file. I'm wondering if it's a bug or I'm simply missing something. Here is the…

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• Are SHA-1, SHA-2 patented?

  - by Victor P

  Do you need a license to use SHA-1 or SHA-2 for commercial purposes?

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• How to implement SHA-2 in SQL Server 2005 or 2008 with a CLR assembly

  SQL Server 2012 supports SHA-256 and SHA-512 through the HASHBYTES() function, but earlier versions of SQL Server do not. SHA-256, SHA-384 and SHA-512 can, however, be implemented in SQL Server 2005 or SQL Server 2008 with the CLR assembly described in this article. …

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• JSR 256 battery events.

  - by Attilah

  Help , How can I detect whenever the power cord is unplugged from electrical socket using JSR 256 ?

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• SHA-256 encryption wrong result in Android

  - by user642966

  I am trying to encrypt 12345 using 1111 as salt using SHA-256 encoding and the answer I get is: 010def5ed854d162aa19309479f3ca44dc7563232ff072d1c87bd85943d0e930 which is not same as the value returned by this site: http://hash.online-convert.com/sha256-generator Here's the code…

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• Achieving AES-256 Channel Encryption with the .NET Compact Framework

  - by Ev

  Hi There, I am working on a business application where the clients are Windows Mobile 6.1 Professional devices. The server is a Java enterprise application. The industry working group recommends AES-256 encryption for client/server communications. This is necessary to gain…

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• tmux and screen-256 TERM not supported on remote hosts

  - by Yoav Aner

  I have set up my tmux to use screen-256colors and it works great with vim. However, when I ssh to a remote host from within tmux, screen-256colors isn't recognized, so I'm getting errors like this: E558: Terminal entry not found in terminfo 'screen-256color' not known.…

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• Objective-C library recommendation for AES-256 in CTR mode

  - by lpfavreau

  Hello, I'm looking for recommendations on an Objective-C library for AES-256 encryption in CTR mode. I have a database full of data encrypted with another library using CTR and seems the included CCCrypt only supports ECB or CBC with PKCS#7. Any idea on the best…

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