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At the suggestion of Linas Vepstas on the Gnu Scientific Library (GSL) list, this GPL'd suite of random number tests will be named "Dieharder". Using a movie sequel pun for the name is a double tribute to George Marsaglia, whose "Diehard battery of tests" of random number generators has enjoyed years of enduring usefulness as a test suite. The dieharder suite is more than just the diehard tests cleaned up and given a pretty GPL'd source face in native C: tests from the Statistical Test Suite (STS) developed by the National Institute for Standards and Technology (NIST) are being incorporated, as are new tests developed by rgb. Where possible, tests are parametrized and controllable so that failure, at least, is unambiguous. A further design goal is to provide some indication of *why* a generator fails a test, where such information can be extracted during the test process and placed in usable form. For example, the bit-distribution tests should (eventually) be able to display the actual histogram for the different bit n-tuplets. Dieharder is by design extensible. It is intended to be the "Swiss army knife of random number test suites", or if you prefer, "the last suite you'll ever ware" for testing random numbers.

Math::Sequence defines a class for simple mathematic sequences with a recursive definition such as x_(n+1) = 1 / (x_n + 1). Creation of a Math::Sequence object is described below in the paragraph about the constructor. Math::Sequence uses Math::Symbolic to parse and modify the recursive sequence definitions. That means you specify the sequence as a string which is parsed by Math::Symbolic. Alternatively, you can pass the constructor a Math::Symbolic tree directly. Because Math::Sequence uses Math::Symbolic for its implementation, all results will be Math::Symbolic objects which may contain other variables than the sequence variable itself. Each Math::Sequence object is an iterator to iterate over the elements of the sequence starting at the first element (which was specified by the starting element, the second argument to the new() constructor). It offers facilities to cache all calculated elements and access any element directly, though unless the element has been cached in a previous calculation, this is just a shortcut for repeated use of the iterator.

TestU01 is a software library, implemented in the ANSI C language, and offering a collection of utilities for the empirical statistical testing of uniform random number generators. The library implements several types of random number generators in generic form, as well as many specific generators proposed in the literature or found in widely-used software. It provides general implementations of the classical statistical tests for random number generators, as well as several others proposed in the literature, and some original ones. These tests can be applied to the generators predefined in the library and to user-defined generators. Specific tests suites for either sequences of uniform random numbers in [0,1] or bit sequences are also available. Basic tools for plotting vectors of points produced by generators are provided as well. Additional software permits one to perform systematic studies of the interaction between a specific test and the structure of the point sets produced by a given family of random number generators. That is, for a given kind of test and a given class of random number generators, to determine how large should be the sample size of the test, as a function of the generator's period length, before the generator starts to fail the test systematically.

LyX is a document processor that encourages an approach to writing based on the structure of your documents (WYSIWYM) and not simply their appearance (WYSIWYG). LyX combines the power and flexibility of TeX/LaTeX with the ease of use of a graphical interface. This results in world-class support for creation of mathematical content (via a fully integrated equation editor) and structured documents like academic articles, theses, and books. In addition, staples of scientific authoring such as reference list and index creation come standard. But you can also use LyX to create a letter or a novel or a theatre play or film script. A broad array of ready, well-designed document layouts are built in. LyX is for people who want their writing to look great, right out of the box. No more endless tinkering with formatting details, "finger painting" font attributes or futzing around with page boundaries. You just write. On screen, LyX looks like any word processor; its printed output - or richly cross-referenced PDF, just as readily produced - looks like nothing else.

Synth is a custom packge repository builder for FreeBSD and DragonFly. It is intended to replace Portmaster, portupgrade, and poudriere for the average user. It is simple to learn (the powerful options are limited in number) and user-friendly, but it is extremely fast due to its parallel building capability. It will "drop-in" on any system as it leverages the stock pkg(8) facilities. All ports are built in a clean environment, so it is finally safe to build ports as needed on a live system. The default profile is the system itself, not a new jail, which can be a valuable feature for some environments. To bring a system up-to-date only requires one command after the ports tree is updated: > synth upgrade-system During the building process, a curses-based display will show the status of all the builders and the entire bulk run process. Synth is intended to be grasped and utilized by novice users within minutes, but offers most of the same powerful features as Poudriere for the power users. Synth requires no preparation; it works immediately upon installation.

Tinderbox is a package building system for FreeBSD ports, based on official Portbuild scripts used on pointyhat building cluster. Tinderbox was written by Joe Marcus Clarke. You can define multiple jails (base system versions) and multiple portstrees. The combination of jail and portstree is called a build. A Tinderbox jail is not what is understood as a jail in FreeBSD, it is in fact a given world in a chroot. Tinderbox supports automatic tracking of dependencies and only rebuilds packages that changed since last run. Tinderbox has support for email notification of failed builds. Tinderbox also integrates well with ccache. Tinderbox is designed to easily provide package sets of ports you need, for platforms and architectures you need. Tinderbox is also excellent tool for testing new ports and port upgrades, especially for testing dependencies and packing lists. It's also useful for testing ports on various releases of FreeBSD, since you can run FreeBSD 6.X world as a jail on FreeBSD 7.X/8.X host.

Kerberos V5 is an authentication system developed at MIT. Abridged from the User Guide: Under Kerberos, a client sends a request for a ticket to the Key Distribution Center (KDC). The KDC creates a ticket-granting ticket (TGT) for the client, encrypts it using the client's password as the key, and sends the encrypted TGT back to the client. The client then attempts to decrypt the TGT, using its password. If the client successfully decrypts the TGT, it keeps the decrypted TGT, which indicates proof of the client's identity. The TGT permits the client to obtain additional tickets, which give permission for specific services. Since Kerberos negotiates authenticated, and optionally encrypted, communications between two points anywhere on the internet, it provides a layer of security that is not dependent on which side of a firewall either client is on. The Kerberos V5 package is designed to be easy to use. Most of the commands are nearly identical to UNIX network programs you are already used to. Kerberos V5 is a single-sign-on system, which means that you have to type your password only once per session, and Kerberos does the authenticating and encrypting transparently. Jacques Vidrine <n@nectar.com>

Kerberos V5 is an authentication system developed at MIT. This package/port contains the applications which used to be in the MIT Kerberos distribution. Abridged from the User Guide: Under Kerberos, a client sends a request for a ticket to the Key Distribution Center (KDC). The KDC creates a ticket-granting ticket (TGT) for the client, encrypts it using the client's password as the key, and sends the encrypted TGT back to the client. The client then attempts to decrypt the TGT, using its password. If the client successfully decrypts the TGT, it keeps the decrypted TGT, which indicates proof of the client's identity. The TGT permits the client to obtain additional tickets, which give permission for specific services. Since Kerberos negotiates authenticated, and optionally encrypted, communications between two points anywhere on the internet, it provides a layer of security that is not dependent on which side of a firewall either client is on. The Kerberos V5 package is designed to be easy to use. Most of the commands are nearly identical to UNIX network programs you are already used to. Kerberos V5 is a single-sign-on system, which means that you have to type your password only once per session, and Kerberos does the authenticating and encrypting transparently. Jacques Vidrine <n@nectar.com>

Kerberos V5 is an authentication system developed at MIT. Abridged from the User Guide: Under Kerberos, a client sends a request for a ticket to the Key Distribution Center (KDC). The KDC creates a ticket-granting ticket (TGT) for the client, encrypts it using the client's password as the key, and sends the encrypted TGT back to the client. The client then attempts to decrypt the TGT, using its password. If the client successfully decrypts the TGT, it keeps the decrypted TGT, which indicates proof of the client's identity. The TGT permits the client to obtain additional tickets, which give permission for specific services. Since Kerberos negotiates authenticated, and optionally encrypted, communications between two points anywhere on the internet, it provides a layer of security that is not dependent on which side of a firewall either client is on. The Kerberos V5 package is designed to be easy to use. Most of the commands are nearly identical to UNIX network programs you are already used to. Kerberos V5 is a single-sign-on system, which means that you have to type your password only once per session, and Kerberos does the authenticating and encrypting transparently. Jacques Vidrine <n@nectar.com>

Kerberos V5 is an authentication system developed at MIT. Abridged from the User Guide: Under Kerberos, a client sends a request for a ticket to the Key Distribution Center (KDC). The KDC creates a ticket-granting ticket (TGT) for the client, encrypts it using the client's password as the key, and sends the encrypted TGT back to the client. The client then attempts to decrypt the TGT, using its password. If the client successfully decrypts the TGT, it keeps the decrypted TGT, which indicates proof of the client's identity. The TGT permits the client to obtain additional tickets, which give permission for specific services. Since Kerberos negotiates authenticated, and optionally encrypted, communications between two points anywhere on the internet, it provides a layer of security that is not dependent on which side of a firewall either client is on. The Kerberos V5 package is designed to be easy to use. Most of the commands are nearly identical to UNIX network programs you are already used to. Kerberos V5 is a single-sign-on system, which means that you have to type your password only once per session, and Kerberos does the authenticating and encrypting transparently. Jacques Vidrine <n@nectar.com>