Free ions and isotopes software for linux

Safe and SafeDesktop project are created so that a user need not remember all her login names and passwords.
What is Safe?
Nowadays, every person is forced to remember lots of sensitive data to interact with machines during daily life. For instance, automatic teller machines ask for numerical passwords and email accounts are protected by using loginnames and passwords. For many good reasons passwords should be difficult to guess and every password should be used for one account only. In reality, this makes it quite difficult for the average person to remember all the different passwords. Hence, people tend to choose easy to remember passwords and many persons re-use their passwords in such a way that the same password is used for many accounts. Even worse, it is quite common to write down passwords and stick the note to a screen frame. All these facilitations of remembrance lower the burden for hackers to get access to sensitive data and abuse computers.
The idea behind Safe is that a user must not remember all her loginnames and passwords. Instead, the user utilizes her cell phone to store sensitive data in an encrypted way. Only one root password is required to be remembered to get access to the data.
This concept works pretty well, because nowadays, cell phones are ubiquitous. Usually, cell phone owners carry the phones in their pocket regardless where they are going. So, running Safe on a cell phone means that passwords have no longer be to remembered and can be chosen as difficult as it can be. The only requirement is that the cell phone in question supports J2ME applications.
What is SafeDesktop?
SafeDesktop provides the same features as Safe does but it runs on desktop machines. Java is also used for the implementation of SafeDesktop. This allows SafeDesktop to be executed on almost all modern desktop operating systems (e.g., Microsoft Windows, Linux).
A synchronization mechanism is part of SafeDesktop to keep the data synchronized between Safe and SafeDesktop.
How does it work?
First, a MD5 hash of the root password is stored and compared with the users input, that is requested at applications startup. If the hash of the users input is equal with the stored hash, the user input is used as key to decrypt the data.
Second, a IDEA cipher is used in CBC mode (of operation) to store data in an encrypted way. The password that the user entered at startup, is used as a key for the IDEA cipher.
Version restrictions:
- Safe and SafeDesktop have their limits. The limits are inherent - they came from the IDEA cipher, the hardware, the operating system and all the other parts that are used as a blackbox.
- But remember, there are things you can do to push the limits: review the source code of Safe and SafeDesktop. Even more security relevant: Select a difficult to remember, long and random root password. With Safe and SafeDesktop you have only to remember one password, so, make it difficult for the opposer to get access to your sensitive data.
Enhancements:
- An IPv6 problem has been fixed (no exception will be thrown when the machine uses IPv6).
- Exception handling has been improved (error messages provide hints as to what went wrong).
- A minor bug has been fixed (mainly how and when Alerts are shown).

Xapian is an Open Source Probabilistic Information Retrieval library, released under the GPL. Xapian iss written in C++, with bindings to allow use from other languages (Perl, Java, Python, PHP, and TCL are currently supported; Guile and C# are being worked on).
Xapian is designed to be a highly adaptable toolkit to allow developers to easily add advanced indexing and search facilities to their own applications.
If youre after a packaged search engine for your website, you should take a look at Omega, which is an application we supply built upon Xapian. But unlike most other website search solutions, Xapians versatility allows you to extend Omega to meet your needs as they grow.
Main features:
- Free Software/Open Source - licensed under the GPL.
- Highly portable - runs on many Linux, MacOS X, many other Unix platforms, and Microsoft Windows.
- Written in C++. Perl bindings are available in the module Search::Xapian on CPAN. Java JNI bindings are included in the xapian-bindings module. We also support SWIG which can generate bindings for 13 languages. At present those for Python, PHP4, and TCL are working. Guile and C# are being worked on.
- Ranked probablistic search - important words get more weight than unimportant words, so the most relevant documents are more likely to come near the top of the results list.
- Relevance feedback - given one or more documents, Xapian can suggest the most relevant index terms to expand a query, suggest related documents, categorise documents, etc.
- Phrase and proximity searching - users can search for words occuring in an exact phrase or within a specified number of words, either in a specified order, or in any order.
- Full range of structured boolean search operators ("stock NOT market", etc). The results of the boolean search are ranked by the probablistic weights. Boolean filters can also be applied to restrict a probabilistic search.
- Supports stemming of search terms (e.g. a search for "football" would match documents which mention "footballs" or "footballer"). This helps to find relevant documents which might otherwise be missed. Stemmers are currently included for Danish, Dutch, English, Finnish, French, German, Italian, Norwegian, Portuguese, Russian, Spanish, and Swedish.
- Supports database files > 2GB - essential for scaling to large document collections.
- Platform independent data formats - you can build a database on one machine and search it on another.
- Allows simultaneous update and searching. New documents become searchable right away.
As well as the library, we supply a number of small example programs, and a larger application - an indexing and CGI-based application called omega:
- The indexer supplied can index HTML, PHP, PDF, PostScript, and plain text. Adding support for indexing other formats is easy where conversion filters are available (e.g. Microsoft Word). This indexer works using the filing system, but we also provide a script to allow the htdig web crawler to be hooked in, allowing remote sites to be searched using Omega.
- You can also index data from any SQL or other RDBMS supported by the Perl DBI module. That includes MySQL, PostgreSQL, SQLite, Sybase, MS SQL, LDAP, and ODBC.
- CGI search front-end supplied with highly customisable appearance. This can also be customised to output results in XML or CSV, which is useful if you are dynamically generating pages (e.g. with PHP or mod_perl) and just want raw search results which you can process in your own page layout code.
Enhancements:
- This release adds support for spelling correction and synonym expansion.
- Some Btree tables are now optional, so opening a database is slightly quicker.
- The Xapian::NumberValueRangeProcessor class has been reworked to fix a design flaw.
- A few bugs have been fixed.
- Performance was improved in several cases.

get_iat and iat_cmp are two small programs to extract and to very basic analysis of packet inter arrival times (unfortunaly often wrongly called inter packet gaps) in a pcap network trace.

- get_iat just reads one pcap files an outputs the inter arrival time and the time
difference between this packet and the first one for all packets

- iat_cmp compares several pcap files and checks how much their inter arrival
times differ. This "compare" is done by sorting the inter arrival time
difference into buckets. Currently the buckets must be configured by hand
in the source code.

BEWARE: these programs have not been tested very exensively. So expect
crashes.

Installation:

Requires GNU make (gmake)
Edit the Makefile and change the path to your libpcap installation.

type :
# make
# make install

GIMP arrow and cursor brushes project consists of 17 sets of arrows and three cursors (a total of 72 brushes) to put in your GIMP brushes folder.

Arrow brushes is my small payback for using the great GIMP program.

I had a hard time (actually impossible) finding any arrow brushes for the GIMP.
But .gbr files are easy to make, so I spent two days of my life making these arrows
(and a few "cursors") as my modest contribution.

Use them for anything youd like. If you redistribute them, please include this file.

I post these, and perhaps make updates, at gimphelp.org. All the items will also be included (in png format) at wpclipart.com, the Public Domain clipart site.

Causes and Symptoms program helps you deduce the causes causes of your medical symptoms that may be related to nutritional deficiencies.

Crown and Cutlass project is a 3D pirate action/adventure game in the spirit of Sid Meiers Pirates!.
It is simultaneously being developed in Linux and Windows, with a strong emphasis on cross-platform compatability. The project is still early on in development, although it is just beginning to look like an actual game.
Crown and Cutlass is written in C++, using OpenGL and SDL in order to allow cross-platform compatibility.
Main features:
- Sail around the Carribean in your pirate ship
- Sail into port in Carribean towns
- Ability to save and load game
Enhancements:
- This is the data to go along with the code in our Subversion repository.
- We have rearranged the data (and added a few files) since our 1.4 release.
- However, we may not release 1.5 until after our redesign is complete.
- As a result, anyone who wants to use the code in Subversion needs this package.
- Once the next release is complete, we will remove this file as the data will be in future releases.