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bless generates ephemeral certs and relies on entropy to generate these ephemeral keys.
For some reason the lambda in
us-east-1kernel is reporting that we only have 256 bits available from/proc/sys/kernel/random/entropy_avail, whereas bless has a minimum of 2046 bits it uses for random generation that would allow us to securely generate certs.When this occurs, we fallback on using KMS for the random generation, which is currently broken.
us-west-2looks to be unaffected.This PR fixes KMS:
KMS GenerateRandom function returns random bytes.
urandom.writeexpects a string. To write the string to we b64 encode so we're able to seed/dev/urandomto give it extra randomness.