That's the point. Still though is very old is not a 19th century problem. Yet RSA was used 400 years after the theory behind
Why didn't people came up with a manual "RSA" before. Since the math is 400 years old.
Why didn't people came up with a manual "RSA" before. Since the math is 400 years old.
We actually did that in university; the public key we used was something like 91 (not hard to factor). Wikipedia has an example with 3233, and that's already very cumbersome: https://en.wikipedia.org/wiki/RSA_(cryptosystem)#Example
It can be done manually easily
I wish there was some way to simplify the math to allow doing it by hand. It would be a nice way to check for correctness while computing it offline, and while ensuring dependencies hadn't been compromised to produce a fake public address.