Question of a beginner: DSA/ElGamal or RSA/Elgamal with a higher number of encryption?

Alexander Delau lex.delau at
Mon Jun 29 10:52:20 CEST 2009

I've now chosen RSA 4096/4096 because your answers are plausible to me.

Thank you for helping me!
Alexander Delau

Alexander Delau wrote:
> I'm a beginner in encrypting E-Mails. It would bei nice if you could help
> me in my question:
> I want to use GnuPG with a masterkey (to sign) and a subkey (to encrypt)
> on Windows XP (GnuPG 1.4.9) and Ubuntu (GnuPG ?.?.?).
> Now I'm not sure, what keys i should use after typing "gpg --gen-key
> --expert" and what keys are secure. 
> DSA/ElGamal: It's the default setting, but DSA only encrypts with 1024bit.
> DSA2: I don't know if it's compatible with other versions.
> RSA/ElGamal: RSA can encrypt with 4096bit, but I read that it is more
> unsecure than DSA.
> So can I use the default setting DSA/ElGamal 1024/4096 or should I use RSA
> with a higher bit number?
> Thank you for your help.
> Best greetings from Germany
> Alexander Delau

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