Coherent sampling true random number generation in FD-SOI technology
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsLicinius-Pompiliu Benea, Florian Pebay-Peyroula, Mikael Carmona, Romain Wacquez
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Abstract
The present description concerns a random number generation circuit (2) of correlated sampling ring oscillator type comprising: two identical ring oscillators (RO1, R02) implemented in CMOS-on-FDSOI technology; a circuit (104) sampling and storing an output (O1) of one of the two oscillators (RO1) at a frequency of the other one of the two oscillators (RO2) and delivering a corresponding binary signal (Beat); and a circuit (200) controlling back gates of PMOS and NMOS transistors of at least one delay element of at least one of the two oscillators (RO1, RO2) based on a period difference between the two oscillators (RO1, RO2).
Claims15
Circuit of correlated sampling ring oscillator random number generation type comprising:
- a first ring oscillator and a second ring oscillator, each comprising delay elements series-connected in a closed loop, the first and second oscillators being identical and implemented in complementary metal oxide semiconductor on fully depleted silicon-on-insulator technology;
- a first circuit configured to sample and store the state of an output of the first oscillator at a frequency of an output of the second oscillator and to deliver a corresponding binary signal;
- and
- a second circuit configured to control back gates of PMOS and NMOS transistors of at least one delay element of at least first and second oscillators, based on a period difference between the outputs of the first and second oscillators.
Dependencies are inferred from the claim text.