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First steps to prove cobs decoder

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jaseg 2018-12-17 13:38:39 +09:00
parent 40e9fb8153
commit 447d084d79
4 changed files with 118 additions and 27 deletions
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src/noise.c
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@ -199,8 +199,6 @@ void uninit_handshake(struct NoiseState *st, enum handshake_state new_state) {
requires \separated(&usart2_out, st, buf, st->handshake, &st->handshake_hash);
assigns key_checked_trace;
ensures (st->handshake_state == HANDSHAKE_DONE_KNOWN_HOST) ==> key_checked_trace == 1;
ensures (st->handshake_state != HANDSHAKE_IN_PROGRESS) ==>
key_match_trace == 1 || (st->failed_handshakes > \old(st->failed_handshakes));