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harrysintonen@infosec.exchange

Harry Sintonen

Edited 1 year ago

Replaced a classic s * 1103515245 + 12345 rand() implementation with a RXS-M-XS permuted congruential generator. This change makes rand() work better with naive user code, such as one relying on proper randomness of the low-order bits (for example rand() % 2).

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jarkko

Jarkko Sakkinen

Reply to @harrysintonen@infosec.exchange
Edited 1 year ago
@harrysintonen Quite recent RNG. Added to my backlog after looking from Wikipedia the implementation: "FPGA exercise: https://en.wikipedia.org/wiki/Permuted_congruential_generator";. Perfect learning for my low FPGA skills with low-end'ish Lattice FPGA ;-) [but with open source stack, which is rare]. Thx.
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