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PokerStars Random Number Generator (RNG)

PokerStars Random Number Generator (RNG)
avatar Subject :  PokerStars Random Number Generator (RNG)
Date:       February 22, 2009 09:41AM
[Note quote by Dan Goldman below]

PokerStars submitted extensive information about the PokerStars random number generator (RNG) to two independent organizations. We asked these two trusted resources to perform an in-depth analysis of the randomness of the output of the RNG, and its implementation in the shuffling of the cards on PokerStars.


BMM International is an independent testing agency and consulting practice involved with the design, evaluation, implementation, testing and management of computer and Internet systems. The company tests and certifies all forms of conventional and electronic commerce computer systems and networks, specializing in gaming, wagering and sports betting systems.

PokerStars provided BMM with the source code for its RNG and shuffle, and software that PokerStars uses to protect the security of random numbers. BMM then subjected the source code and the output of the RNG to rigorous testing, including the Marsaglia Die Hard tests.

BMM found that:

-- the PokerStars RNG and shuffle generate results that are truly random and unpredictable

-- the software used by PokerStars complies with all industry-standard requirements (including entropy sources, security, unpredictability, uniformity and fairness)

-- the software passed the Marsaglia Die Hard tests

BMM concluded that the PokerStars RNG and shuffle comply with the requirements of the standard "I0101 - Internet Gaming Random Number Generator Requirements."

www.bmm.com.au


Cigital, Inc. is a leading provider of solutions to speed the development and delivery of high-quality software. The company is a major provider of software quality management (SQM) solutions to major corporations worldwide, including Visa International, AOL Time Warner, Motorola, General Electric, Ericsson and many others.

Cigital has announced that it has confirmed the reliability and security of the random number generator (RNG) that PokerStars uses to shuffle cards on its PokerStars.com online poker site.

Cigital analyzed the source code, entropy sources and documentation for PokerStars' RNG implementation. In addition, a sample RNG output stream provided by PokerStars was subjected to - and passed - FIPS 140-1 testing. Using standard methods for exploiting RNGs and having full access to the source code, Cigital was unable to break the PokerStars RNG. Cigital found that the PokerStars implementation adheres to the current state-of-the-practice in generating random seeding values.

"Software that can generate reliable random numbers is an absolute requirement in the gaming industry," said Gary McGraw, Chief Technology Officer at Cigital. "Our analysis included extensive examination of the underlying algorithm for random number generation. We can state with confidence that use of the PokerStars RNG results in statistically random sequences used to generate the poker hands dealt on PokerStars.com. This, in turn, should provide a safe and fair gaming environment for the site's players."

"Cigital's reputation for excellence is well known in the gaming industry," said Dan Goldman, Vice President of Marketing at PokerStars. "Their previous discovery of critical RNG implementation weakness at a major online poker site made our decision to work with Cigital an easy one. Their considerable technical expertise and thorough approach to software reliability and security have established them as a trusted third-party evaluator."

www.cigital.com


Glossary

Entropy: a measure of a system's disorder or randomness.

FIPS 140-1: a U.S. government standard for implementations of cryptographic modules, that is, hardware or software that encrypts and decrypts data or performs other cryptographic operations. FIPS 140-1 specifies security requirements that are to be satisfied by a cryptographic module used within a security system protecting information within computer systems.

Marsaglia Die Hard Tests: a stringent battery of tests for random number generators, developed by George Marsaglia, Professor Emeritus, Florida State University (who also developed a variety of widely-used RNGs).

Random Number Generator (RNG): a system, device or module that creates a sequence of apparently unrelated numbers.
Re: PokerStars Random Number Generator (RNG)
avatar Subject :  Re: PokerStars Random Number Generator (RNG)
Date:       February 22, 2009 11:14PM
out of all the sites ive played on, pokerstars has been the most realistic to actually being dealt cards in person. to say the least, ive been very pleased with this site, and i do believe its the biggest and the best. this report just proves this fact. thanks for the post! maybe some of these people posting bad things on this site will take this in mind. if not, oh well..... they can be angry while im still making money!


nick
Re: PokerStars Random Number Generator (RNG)
avatar Subject :  Re: PokerStars Random Number Generator (RNG)
Date:       June 17, 2012 05:52PM
Truly random my eye take this for example:

I can confirm that pokerstars does not use a random shuffle or maybe they do in the lower value of their games but when you have many chips the random shuffle is thrown out the window a few examples when I played...I had many chips and bet all because I had a J hi flush and there was nothiing on the board that would show I would lose..Guess what I lost to a Q hi flush. then I had a pair of AA in hole and bet all only to have someone call me with also a pair of AA I had black AA and he had Red only to be beat out by him gitting a flush with four of the cards from the table. Then just yesterday I had nearly a million chips and there were 2 nines on board but I bet everything for I had an A hi flush. 2 players calle3d for they had 3 nines Guess what the river was a 4 of my suit and I lost everything because a player had a 9-4 in hole...he ended with a full house.. so I am quitting PS and looking for an honest site.
Re: PokerStars Random Number Generator (RNG)
avatar Subject :  Re: PokerStars Random Number Generator (RNG)
Date:       June 17, 2012 08:22PM
I don't think your problem is limited solely to the RNG. But good luck with finding an honest site.

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