A 3D-printed key that can’t be copied

KEYS have been around for a long time. The earliest, made from wood, date back 4,000 years, to the ancient Egyptians. The Romans improved them a bit by making them from metal. But there, more or less, they have stayed. Electronic card-keys aside, a key is still, basically, a piece of metal sporting a series of grooves, teeth and indentations which, when inserted into a keyway, line up to move pins

[tsukamotch]

街の鍵屋さんで複製キーが拵えられなくなり盗まれるとコピーし放題の3Dデータの在り処が問題になり実際無くした時の対処は厄介で何かと変わるだろうとは