I’ve found on internet that the exp argument of the function “is typically 3,17, or 65,537”.
How I choose it, and what is the difference between using 3,17 and 65,537?
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I’ve found on internet that the exp argument of the function “is typically 3,17, or 65,537”.
How I choose it, and what is the difference between using 3,17 and 65,537?
You should choose your exponent so that it is relatively prime to p-1 for all primes p which divide the modulus. Although you may encounter problems with some libraries if you try to use other values than
3,5,17,257,65537(Wikipedia offers more details on the RSA key-generation)Here is a very good description on a related question.