[Cryptography] Standard exponents in RSA

Ralph Holz ralph-cryptometzger at ralphholz.de
Wed Oct 30 13:07:18 EDT 2013


Hi,

the two most common exponents that one finds in X.509 RSA certs are
65537 and 17 -- in my data, they account for near 100%. Have these been
chosen as the result of some standardisation and was there some
cryptographic reasoning behind it, or is it simply that any exponent
will do? Any performance issues?

Ralph

-- 
Ralph Holz
I8 - Network Architectures and Services
Technische Universität München
http://www.net.in.tum.de/de/mitarbeiter/holz/
Phone +49.89.289.18043
PGP: A805 D19C E23E 6BBB E0C4  86DC 520E 0C83 69B0 03EF


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