2009-02-16
key3_i = p_i ^ c_i key2_i+1 = crc32(key2_i,MSB(key1_i+1)) key2_i = crc32i(key2_i+1,MSB(key1_i+1)) = (key2_i+1 << 8) ^ crcinvtab(MSB(key2_i+1) ^ MSB(key1_i+1) = crc32i(key2_i+1,0) ^ MSB(key1_i+1)
key3 から key2_i+1 の 10..15 推定 2..9 推定
16 .. 31 推定