Physical security and cryptography can learn from each other, part 11367:

Hotels wisely don't put the room number on guest keycards so if someone finds your card, they'd have to exhaustively search the hotel to find the room it opens.

Some hotels now have elevators programmed to only let you call the floor for which your keycard is coded, preventing guests from wandering to other floors.

But it also means the elevator can be used as an efficient oracle to determine the floor of a found key.

If you were waiting until the last minute we have both good and bad news for you. This is the last minute!

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From the article: "Senator Mark Warner...issued a statement saying China's leaders, and others, will be watching closely.

'If the United States asserts the right to use military force to invade and capture foreign leaders it accuses of criminal conduct, what prevents China from claiming the same authority over Taiwan's leadership? What stops [Russian President] Vladimir Putin from asserting similar justification to abduct Ukraine's president? Once this line is crossed, the rules that restrain global chaos begin to collapse, and authoritarian regimes will be the first to exploit it.'

Donald Trump seems to believe that he makes the rules, and what applies to the US under his command does not mean others can expect the same privileges.

But that is not how the world of power works."

This reasoning is somewhat disingenuous. China and Russia ALREADY claim the same authority. Russia IS ALREADY ATTEMPTING UKRAINIAN GENOCIDE by force (and has tried to seize or assassinate Zelenskyy from the beginning), and China has been openly preparing to seize Taiwan FOR DECADES--just as they did decades AGO with Tibet, where they 'run' a fake Panchen Lama PRECISELY BECAUSE THEY FAILED to seize the Dalai Lama when they did. The fact that they're not already in control of both countries reflects THEIR LACK OF CAPACITY, not any greater regard for international law.

What's stunning and tragic here is that the U.S. is now openly joining them--just as it is in authoritarian repression within OUR OWN borders. #TurdReich

https://www.bbc.com/news/articles/c5y45nyz124o