nonrepudiation

  When the digital signature is used as random number seed, every specific random number derived from this seed is also verifiable. Because an incorruptible clock is also digitally signed, the time of the signing operation is also verifiable. Each time the HSM generates a signature, the internal embedded counter is incremented and signed. This way each signature and every random number generated is accounted for. In addition, the method allows verification of the specific HSM being used and any additional draw information: since draw information is digitally signed (e.g. personnel conducting the draw, etc.) it can be verified. LYNKS II Security certified by NIST.

  Szrek provides a secure and reliable method for random numbers generation based on its patented method of RNG non-repudiation (patent nr 6,934,846). The method is based on asymmetric properties of digital signatures, where a digital signature generated with a private key is used as a random number seed. Random numbers are derived from the seed, and since the seed is a digital signature of draw data it can be verified using the public key, along with the random numbers and the draw data. For digital
signing, Trusted Draw uses secure and tamper evident NIST certified Hardware Security Modules (HSMs).

  The unique benefit of Szrek RNG technology is that generated unpredictable and unbiased random numbers can be mathematically verified to detect any potential fraud. The RNG has been certified by several US and international independent labs and has been used successfully since 2005 by numerous lottery operators and state licensed lotteries around the world.