eli5: How was the authenticity of a foreign passport ensured, before cryptographic signatures there a thing?
In: Other
They dont, that’s why North Korean leader Kim Jong Il faked passport to visit Disneyland last time. [https://www.reddit.com/r/pics/comments/1984vu5/kim_jongll_and_kim_jongun_used_fake_brazilian/](https://www.reddit.com/r/pics/comments/1984vu5/kim_jongll_and_kim_jongun_used_fake_brazilian/)
But his eldest son got caught in Japan in 2000s.
[https://www.washingtonpost.com/archive/politics/2001/05/04/japan-expels-north-korean-leaders-son/ed6c37be-aa3c-4081-9ebe-663e99632675/](https://www.washingtonpost.com/archive/politics/2001/05/04/japan-expels-north-korean-leaders-son/ed6c37be-aa3c-4081-9ebe-663e99632675/)
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