THE TECHNICAL (BORING) STUFF

What does RNG stand for, and how does it work?

A random number generator is a computational or physical device designed to generate a sequence of numbers or symbols that lack any pattern, i.e. appear random. Computer-based systems for random number generation are widely used, but often fall short of this goal, though they may meet some statistical tests for randomness intended to ensure that they do not have any easily discernible patterns. Methods for generating random results have existed since ancient times, including dice, coin flipping, the shuffling of playing cards, the use of yarrow stalks in the I Ching, and many other techniques.

The RNG is constantly generating random numbers, at a rate of thousands to millions per second. As soon as the lever is pulled or the "Play" button is pressed, the most recent random number is used to determine the result. This means that the result varies depending on exactly when the game is played. A fraction of a second earlier or later, and the result would be different.

Hmmm, but is it all really random?

That's been a hotly debated topic in the online gaming industry since it's creation.  There's still a growing number of people who prefer pseudo-random number generators over random number generators.  The feeling is that a "random number generator" based solely on deterministic computation cannot be regarded as a "true" random number generator, since its output is inherently predictable.  A pseudo-random number generator on the other hand, uses computational algorithms that produce long sequences of apparently random results, which are in fact determined by a shorter initial seed or key.

It's an issue that many players are still not comfortable with; by gambling their money on a system that may not in fact be 100% random.  The games go hot and cold both ways, that much we do know.  And there is a sense of authenticity to game, provided that the casino/RNG is being independently tested from a trustworthy auditor.

What about independent testing?

Integrity, accountability and a commitment to protect player's interests are the guiding principles that independent testing agencies and consulting practices involved with the design, evaluation, implementation, testing and management of computer and Internet systems. These companies test and certify all forms of conventional and electronic commerce computer systems and networks, specializing in gaming, wagering and sports betting systems.  The RNGs are generally put to the Marsaglia Die Hard test to find out if they're legit or not. 

One of the leading - if not the leading - independent auditing firms would be PriceWaterHouseCoopers, the world's largest professional services firm.  It was formed in 1998 from a merger between Price Waterhouse and Coopers & Lybrand. PwC is the largest of the Big Four auditors, whose other member firms include Deloitte Touche Tohmatsu, Ernst & Young and KPMG.  You should definitely feel some security, if the casino you play at is being audited by these guys!

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