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| author | Ayke van Laethem <[email protected]> | 2022-09-15 11:05:56 +0200 |
|---|---|---|
| committer | Ron Evans <[email protected]> | 2022-09-16 14:48:41 +0200 |
| commit | d3863f337d7370ef73e9de7d214ff3b8357ecf10 (patch) | |
| tree | 5e5e366fa8ab98dcc6d4b728cc784d26dda19ce4 /src/crypto | |
| parent | 5551ec7a1ed9d59764cfdf5a73b23dc40365a6f8 (diff) | |
| download | tinygo-d3863f337d7370ef73e9de7d214ff3b8357ecf10.tar.gz tinygo-d3863f337d7370ef73e9de7d214ff3b8357ecf10.zip | |
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.
Diffstat (limited to 'src/crypto')
| -rw-r--r-- | src/crypto/rand/rand_baremetal.go | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/crypto/rand/rand_baremetal.go b/src/crypto/rand/rand_baremetal.go index 6f3370e96..fe9fea2a0 100644 --- a/src/crypto/rand/rand_baremetal.go +++ b/src/crypto/rand/rand_baremetal.go @@ -1,5 +1,5 @@ -//go:build nrf52840 || stm32 || (sam && atsamd51) || (sam && atsame5x) || rp2040 -// +build nrf52840 stm32 sam,atsamd51 sam,atsame5x rp2040 +//go:build nrf52840 || stm32 || (sam && atsamd51) || (sam && atsame5x) +// +build nrf52840 stm32 sam,atsamd51 sam,atsame5x package rand |