Tag: children

Spy’s Guidebook Reborn

2 comments

When I was a kid of about 10, one of my favourite books was Usborne’s Spy’s Guidebook. (I also liked its sister the Detective’s Handbook, but the Spy’s Guidebook always seemed a smidge cooler to me).

Detective's Handbook andSpy's Guidebook on a child's bookshelf.
I imagine that a younger version of me would approve of our 7-year-old’s bookshelf, too.

So I was pleased when our eldest, now 7, took an interest in the book too. This morning, for example, she came to breakfast with an encrypted message for me (along with the relevant page in the book that contained the cipher I’d need to decode it).

Usborne Spy's Guidebook showing the "Pocket code card" page and a coded message
Decryption efforts were hampered by sender’s inability to get her letter “Z”s the right damn way around.

Later, as we used the experience to talk about some of the easier practical attacks against this simple substitution cipher (letter frequency analysis, and known-plaintext attacks… I haven’t gotten on to the issue of its miniscule keyspace yet!), she asked me to make a pocket version of the code card as described in the book.

Three printed pocket code cards
A three-bit key doesn’t make a simple substitution cipher significantly safer, but it does serve as a vehicle to teach elementary cryptanalysis!

While I was eating leftover curry for lunch with one hand and producing a nice printable, foldable pocket card for her (which you can download here if you like) with the other, I realised something. There are likely to be a lot more messages in my future that are protected by this substitution cipher, so I might as well preempt them by implementing a computerised encoder/decoder right away.

So naturally, I did. It’s at danq.dev/spy-pocket-code and all the source code is available to do with as you please.

Key 4-1 being used to decode the message: UOMF0 7PU9V MMFKG EH8GE 59MLL GFG00 8A90P 5EMFL
Uh-oh: my cover is blown!

If you’ve got kids of the right kind of age, I highly recommend picking up a copy of the Spy’s Guidebook (and possibly the Detective’s Handbook). Either use it as a vehicle to talk about codes and maths, like I have… or let them believe it’s secure while you know you can break it, like we did with Enigma machines after WWII. Either way, they eventually learn a valuable lesson about cryptography.

Having Kids In Our Poly Triad by Sara Valta

0 comments

This article is a repost promoting content originally published elsewhere. See more things Dan's reposted.

Having Kids In Our Poly Triad by Sara Valta title showing picture of two men and a woman hugging the outline of a baby

Sara’s back! You might remember a couple of years ago she’d shared with us a comic on her first year in a polyamory! We’re happy to have her back with a slice of life and a frank n’ real conversation about having kids in her Poly Triad relationship.

This sort of wholesome loving chat is just the thing we need for the start of 2021.

…

Start your year with a delightful comic about the author negotiating possible future children in a queer polyamorous triad, published via Oh Joy Sex Toy. Sara previously published a great polyamory-themed comic via OJST too, which is also worth a look.

Why children stay silent following sexual violence

1 comment

This article is a repost promoting content originally published elsewhere. See more things Dan's reposted.

I’ve been thinking a lot lately about the messages we send to our children about their role, and ours as adults, in keeping them safe from people who might victimise them. As a society, our message has changed over the decades: others of my culture and generation will, like me, have seen the gradual evolution from “stranger danger” to “my body, my choice”. And it’s still evolving.

But as Kristin eloquently (and emotionally: I cried my eyes out!) explains, messages like these can subconsciously teach children that they alone are responsible for keeping themselves from harm. And so when some of them inevitably fail, the shame of their victimisation – often already taboo – can be magnified by the guilt of their inability to prevent it. And as anybody who’s been a parent or, indeed, a child knows that children aren’t inclined to talk about the things they feel guilty about.

And in the arms race of child exploitation, abusers will take advantage of that.

What I was hoping was to have a nice, concrete answer – or at least an opinion – to the question: how should we talk to children about their safety in a way that both tries to keep them safe but ensures that they understand that they’re not to blame if they are victimised? This video doesn’t provide anything like that. Possibly there aren’t easy answers. As humans, as parents, and as a society, we’re still learning.

Further watching, if you’ve the stomach for it: this Sexplanations episode with Dr. Lindsey Doe and Detective Katie Petersen.

I got married and had kids so you don’t have to

0 comments

This article is a repost promoting content originally published elsewhere. See more things Dan's reposted.

…

I’m sure that the graveyard of over-optimism is littered with the corpses of parents who planned to help their children learn self-moderation by showing them the wonders of nature, but who realized too late that fields of wheat don’t stand a chance against Rocket League. I’m hoping that we can agree that computer games are good, but other things are good too, cf fields of wheat. I don’t want to have to sneak in my own gaming time after my son has gone to bed. I also don’t want to be a hypocrite; at least, I don’t want Oscar to know that I’m a hypocrite. Maybe we can play together and use it as father-son bonding time. This might work until he’s ten and after he’s twenty-five.

…

Robert Heaton, of Programming Projects for Advanced Beginners fame and reverse-engineering device drivers that spy on you (which I’ve talked about before), has also been blogging lately about his experience of Dadding, with the same dry/sarcastic tone you might be used to. This long post is a great example of the meandering thoughts of a (techie) parent in these (interesting) times, and it’s good enough for that alone. But it’s the raw, genuine “honesty and dark thoughts” section towards the end of the article that really makes it stand out.

Building a Playframe (Timelapse Video)

10 comments

This week, with help from Robin and JTA, I built a TropicTemple Tall XXL climbing frame in the garden of our new house. Manufacturer Fatmoose provided us with a pallet-load of lumber and a sack of accessories, delivered to our driveway, based on a design Ruth and I customised using their website, and we assembled it on-site over the course of around three days. The video above is a timelapse taken from our kitchen window using a tablet I set up for that purpose, interspersed with close-up snippets of us assembling it and of the children testing it out.

Playframe in VR
You can explore the play equipment in VR, if you like.

I’ve also built a Virtual Tour so you can explore the playframe using your computer, phone, or VR headset. Take a look!

The video is also available via:

Pyjama Party Water Fight

0 comments

There comes a point where you’ve run out of new lockdown activity ideas, and you just start combining random pairs of activities you’ve already done. This morning’s first activity was… “Pyjama Party / Water Fight”.

Is it just me, or does “Pyjama Party / Water Fight” sound like a PWL song title?

Fox In Sox

0 comments

This article is a repost promoting content originally published elsewhere. See more things Dan's reposted.

This is the best rap music-related thing to happen to Dr. Seuss since Wubble Down, over 10 years ago. And understand that there have been a lot of strong candidates.

(I maintain that I’m not that “into” rap music. But somehow I keep proving myself wrong. Loving this song right now, for example.)

Gratitude

2 comments

In these challenging times, and especially because my work and social circles have me communicate regularly with people in many different countries and with many different backgrounds, I’m especially grateful for the following:

  1. My partner, her husband, and I each have jobs that we can do remotely and so we’re not out-of-work during the crisis.
  2. Our employers are understanding of our need to reduce and adjust our hours to fit around our new lifestyle now that schools and nurseries are (broadly) closed.
  3. Our kids are healthy and not at significant risk of serious illness.
  4. We’ve got the means, time, and experience to provide an adequate homeschooling environment for them in the immediate term.
  5. (Even though we’d hoped to have moved house by now and haven’t, perhaps at least in part because of COVID-19,) we have a place to live that mostly meets our needs.
  6. We have easy access to a number of supermarkets with different demographics, and even where we’ve been impacted by them we’ve always been able to work-around the where panic-buying-induced shortages have reasonably quickly.
  7. We’re well-off enough that we were able to buy or order everything we’d need to prepare for lockdown without financial risk.
  8. Having three adults gives us more hands on deck than most people get for childcare, self-care, etc. (we’re “parenting on easy mode”).
  9. We live in a country in which the government (eventually) imposed the requisite amount of lockdown necessary to limit the spread of the virus.
  10. We’ve “only” got the catastrophes of COVID-19 and Brexit to deal with, which is a bearable amount of crisis, unlike my colleague in Zagreb for example.
Bowl of ice, glasses of water, salt and sugar supplies.
Today’s homeschool science experiment was about what factors make ice melt faster. Because of course that’s the kind of thing I’d do with the kids when we’re stuck at home.

Whenever you find the current crisis getting you down, stop and think about the things that aren’t-so-bad or are even good. Stopping and expressing your gratitude for them in whatever form works for you is good for your happiness and mental health.