Crypt::...gnature(3)

💅 Crypt::OpenSSL::DSA::Signature

okay so bestie, this is the Digital Signature Object from Crypt::OpenSSL::DSA — it's literally the little bundle that holds a DSA signature pair around. it's giving "small but crucial." no cap. ✨

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🎀 SYNOPSIS

like, here's the whole vibe in code, fr fr:

use Crypt::OpenSSL::DSA;
my $dsa_priv = Crypt::OpenSSL::DSA->read_priv_key( $filename );
my $sig_obj = $dsa_priv->do_sign($message);
my $dsa_pub = Crypt::OpenSSL::DSA->read_pub_key( $filename );
my $valid = $dsa_pub->do_verify($message, $sig_obj);
my $sig_size = $dsa_priv->get_sig_size();

my $r = $sig_obj->get_r;
my $s = $sig_obj->get_s;

my $sig_obj2 = Crypt::OpenSSL::DSA::Signature->new();
$sig_obj2->set_r($r);
$sig_obj2->set_s($s);
my $valid = $dsa_pub->do_verify($message, $sig_obj2);

like yes, you read a priv key, sign the message, read the pub key, verify — and you can also pull out r and s, build a fresh signature object, and verify that too. iconic behavior honestly. 👑

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🌸 CLASS METHODS

• $sig_obj = Crypt::OpenSSL::DSA::Signature->new(); — creates a brand new DSA Signature Object for you. 💖 but heads up bestie: after you make it, you gotta call set_r and set_s — like, it's not going to fill itself in, that's your job. 🫶

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🦋 OBJECT METHODS

• $r = $sig_obj->get_r; — gets the first member of the signature pair. that's the r. slay. ⭐
• $s = $sig_obj->get_s; — gets the second member of the signature pair. that's the s. periodt. 💅
• $r = $sig_obj->set_r; — sets the first member of the signature pair. 🎀
• $s = $sig_obj->set_s; — sets the second member of the signature pair. 🌸

lowkey notice how the docs literally spell it out for us: get/set for r and s, first member and second member, over and over. it's giving consistency queen. 💜

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👑 AUTHOR

T.J. Mather, <tjmather@maxmind.com> — the main character who made this happen. 🫶

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🌈 SEE ALSO

• Crypt::OpenSSL::DSA — go check out the parent module, iykyk. 💖

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and that's the whole page, bestie!! 💅✨ no notes, ate and left no crumbs. this lovely little doc shipped with perl v5.42.2, dated 2025-06-30, under the Crypt::...gnature(3) name — catch you in the group chat! 🎀🦋💜