From 76a6b631f4bd6866622f537870bc145c935bef40 Mon Sep 17 00:00:00 2001 From: Linus Nordberg Date: Wed, 18 Dec 2019 23:36:25 +0100 Subject: [cc20rng] Revamping the ChaCha20 seeding - chacha20_prng_block() uses counter in the state struct - chacha20_setup() replaces chacha20_prng_reseed() and fills the whole state struct, fixing a bug where only half of the key was being set; as a result of 'counter' being set, a state struct filled with entropy from the TRNG makes reseeding occur after a random number of rounds instead of after a fixed 2^32-1 rounds - decrementing of the block counter is done in chacha20_prng_block() - chacha output is copied to buf _after_ the interrupt driven transmission of buf to UART has finished, to stop the race between reading and refilling of buf --- src/cc20rng/main.h | 4 ---- 1 file changed, 4 deletions(-) delete mode 100644 src/cc20rng/main.h (limited to 'src/cc20rng/main.h') diff --git a/src/cc20rng/main.h b/src/cc20rng/main.h deleted file mode 100644 index 902ecf4..0000000 --- a/src/cc20rng/main.h +++ /dev/null @@ -1,4 +0,0 @@ -#ifndef __MAIN_H -#define __MAIN_H - -#endif /* __MAIN_H */ -- cgit v1.2.3