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Chinese researchers break RSA encryption with a quantum computer
(www.csoonline.com)
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this post was submitted on 15 Oct 2024
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I'm sure he is joking. For example the lowest key size openssl supports is 512 bits and this is really small. Anything below 1024 bits has been considered insecure for a while now. Typical RSA key length is 2048. For a 22 bit RSA key you don't need a quantum computer, this is so small a laptop CPU can break this in a short time. As with EC crypto: this won't save you from quantum computer attacks, in fact a typical 256 bit EC key needs less qbits to be broken (1500) then 2048 bit RSA(4096).
...I admit I didn't do the math with the amount of bits they stated xD. Still, it's like 10 times the amount of bits, you can get a stronger EC key with 5 times less bits compared to RSA.