Is getrandom secure?

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Kevin Wang

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Feb 10, 2022, 3:38:09 AM2/10/22

to Gramine Users

Dear All,

I've noticed that gramine emulates the getrandom syscall and /dev/random with RDRAND instraction. Does it mean that workloads can rely on getrandom to get true random number and no one in the middle can manipulate the result?

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Kevin Wang

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Michał Kowalczyk

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Feb 10, 2022, 9:07:47 PM2/10/22

to Kevin Wang, Gramine Users

RDRAND is not a true random generator, but it's suitable for cryptographical purposes.

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