Created
June 12, 2022 09:39
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import "utils/casts/u64_to_bits" as unpack64 | |
from "hashes/sha3/256bit" import sha3_256 as hash | |
import "utils/casts/u8_from_bits" as pack8 | |
def bits_to_u8_array<N, P>(bool[N] bits) -> u8[P]: | |
assert(N == 8 * P) | |
u8[P] res = [0; P] | |
for u32 i in 0..P do | |
res[i] = pack8(bits[8 * i..8 * (i + 1)]) | |
endfor | |
return res | |
def main(u64[4] message, u64[4] h) -> bool: | |
bool[ 64*4 ] message_bits = [...unpack64(message[0]), ...unpack64(message[1]), ...unpack64(message[2]),...unpack64(message[3])] | |
u8[ 64*4 / 8 ] message_u8 = bits_to_u8_array(message_bits) | |
u64[4] m_hash = hash(message_u8) | |
assert(m_hash == h) | |
return true | |
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