# Re: strength of DSA keys in JDK

Gigi Ankeny (Gigi.Ankeny@Eng)
Thu, 23 Oct 1997 08:01:49 -0700 (PDT)

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    Date: Thu, 23 Oct 1997 08:01:49 -0700 (PDT)

    From: Gigi Ankeny <Gigi.Ankeny@Eng>

    Subject: Re: strength of DSA keys in JDK

    To: java-security@web2.javasoft.com, dmiller@preEmptive.com

Hi,
The strength of a DSA key pair is set as the bit length of the DSA
modulus prime. It is specified in the NIST document to be from 512 to 1024
and is a multiple of 64. In other words, the maximum strength is 1024 and
weakest is 512.

Best Regards,

Gigi

> what is the strength of a DSA key pair in the JDK?
> i know that you can set a "strength" parameter of
> the initialize() method of the KeyPairGenerator
> object. from what i found in the documentation,
> this number sets the bit length of the modulus
> used to calculate the key. what is the maximum
> strength of a DSA key pair? what is the weakest?
>
> thanks for your time...
>
> dave
>
>
>

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