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3 Commits

Author SHA1 Message Date
Yurii Soldak 8d4d3c6201 build: drop deprecated build tags 2022-12-19 23:20:11 +01:00
Ayke van Laethem d3863f337d rp2040: do not use GetRNG in crypto/rand 
The crypto/rand package is used for sensitive cryptographic operations.
Do not use the rp2040 RNG for this purpose, because it's not strong
enough for cryptography.

I think it is _possible_ to make use of the RP2040 RNG to create
cryptographically secure pseudo-random numbers, but it needs some
entropy calculation and secure hashing (blake2s or so) to make them
truly unpredictable.
 2022-09-16 14:48:41 +02:00
deadprogram ea1e08f53f machine/rp2040: implement semi-random RNG based on ROSC based on pico-sdk 
Signed-off-by: deadprogram <ron@hybridgroup.com>
 2022-09-10 10:47:48 +02:00