On Fri, 27 May 2005, Erpo wrote:
On Thu, 2005-05-26 at 20:12 +0200, Youssef Aoun wrote:
Since ElGamal is able to make signatures and encryption... why do we
have other alternatives? Does it help to have multiple key??
It helps to have multiple algorithms in that there is a backup if one of
them is broken. ElGamal isn't used for signing because DSA is The
Standard.
====================
elgamal isn't used because the implementation was broken. as far as DSA
being "The Standard" i don't think it's any more standard than RSA,
although it is more common.
the common and widespread use of DSA instead of RSA for signatures seems
to be a historical artifact of RSAs patent which, until it expired, forced
open source crypto applications to use something else.
--
...atom
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