Hello cryptques, and welcome to the Monastery!

I've tested those two modules and I *am* able to generate and verify a PSS signature in Perl...

Are you sure it’s working correctly? When I run your script with the line:

print ($verify ? 'verified' : 'failed'), "\n";

[download]

added at the end, I get an intermittent error:

13:17 >perl 592_SoPW.pl
verified
13:17 >perl 592_SoPW.pl
verified
13:17 >perl 592_SoPW.pl
verified
13:18 >perl 592_SoPW.pl
PARI:   ***   forbidden division t_INT % t_REAL. at C:/Perl/Strawberry
+/spp-spec-64int-5.16.0.1-beta3-32bit-portable/perl/vendor/lib/Crypt/R
+SA/Key/Private.pm line 127.

13:18 >

[download]

I’m running the latest version (1.99) of Crypt::RSA.

With a little detective work using eval and Carp, it appears the error is generated by the line:

$signature = $pss->sign ( Message => $message,
                          Key => $private ) || die $pss->errstr;

[download]

Maybe some other monk knows of a fix or workaround?

Athanasius <°(((>< contra mundum Iustus alius egestas vitae, eros Piratica,

In reply to Re: Help verifying RSA PSS signature in Perl with Crypt::RSA and Crypt::RSA::SS::PSS by Athanasius
in thread Help verifying RSA PSS signature in Perl with Crypt::RSA and Crypt::RSA::SS::PSS by cryptques

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