Is there an algorithm that computes the strength of a digest alg?
brich at us.ibm.com
Mon Oct 24 08:34:44 PDT 2011
For the algorithms that NIST recognizes and approves, the doc linked below
has some strength comparisons in tables near page 60
Bruce A Rich
brich at-sign us dot ibm dot com
From: Bradford Wetmore <bradford.wetmore at oracle.com>
To: Weijun Wang <weijun.wang at oracle.com>
Cc: "Xuelei.Fan at oracle.com" <Xuelei.Fan at oracle.com>, OpenJDK
<security-dev at openjdk.java.net>
Date: 10/23/2011 10:47 PM
Subject: Re: Is there an algorithm that computes the strength of a
Sent by: security-dev-bounces at openjdk.java.net
I don't know of anything like that. As Michael points out, key Lengths
by themselves are not always a good indicator of relative stength.
BTW, JSSE hard-codes the choices.
On 10/23/2011 6:52 PM, Weijun Wang wrote:
> Hi Andrew
> I need a method
> boolean isWeakerThan(String a1, String a2)
> so that isWeakerThan("MD5", "SHA1") returns true and
> isWeakerThan("SHA-256", "SHA1") returns false. I know you have done a
> lot of constraints works in JDK 7. Do you have an existing one?
> Otherwise, I plan to manually assign a value to each known algorithm and
> compare it.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the security-dev