3 ms·

Yes. 65537 is commonly used.

• NateLawson 17y ago
  The lower your public exponent in RSA, the faster you can verify signatures. So e=3 is still used quite often in embedded applications. It can be secure if used properly, but for most cases, it is safer to use 65537 as that can protect you from actual exploitation even if you have a variety of implementation bugs.