Darwin@feddit.deM to Interesting@feddit.de · 1 year agoVisual Cryptographyupload.wikimedia.orgexternal-linkmessage-square8fedilinkarrow-up180arrow-down134
arrow-up146arrow-down1external-linkVisual Cryptographyupload.wikimedia.orgDarwin@feddit.deM to Interesting@feddit.de · 1 year agomessage-square8fedilink
minus-squareLittleleeroy@lemmy.worldlinkfedilinkarrow-up2·edit-21 year agoWhen I was a kid (in the 2000s) I had a subscription to the James Bond magazine. It had lots of cool spy things including this. I had 2 different plastic cipher keys that you’d move over the “static” image and it would reveal secret info.
When I was a kid (in the 2000s) I had a subscription to the James Bond magazine. It had lots of cool spy things including this. I had 2 different plastic cipher keys that you’d move over the “static” image and it would reveal secret info.
D R I N K M O R E …