The user id is typically the email address for which the PGP key was generated. Here's the code I use, which targets someone for whom I have a PGP public key block and an email address:

sub encrypt {
    my($proto, $target, $data) = @_;
    my $id = $target->email;
    my $key = $target->pgp_key;
    my $ring = Crypt::OpenPGP::KeyRing->new(Data => $key)
            or $proto->error("new user KeyRing failed");
    my $pgp = Crypt::OpenPGP->new(PubRing => $ring)
            or $proto->error("new Context failed");
    my $kb = $ring->find_keyblock_by_uid($id)
            or $proto->error("find user keyblock failed", $ring);
    my $alg = $kb->preferred_sk_alg;
    $pgp->encrypt(
        Data => $data,
        Recipients => [ $id ],
        Armour => 1,
        ($alg ? (Cipher => $alg) : ()), # use default if no preference
+ located
    );
}

[download]

Note that this is also using Crypt::OpenPGP - finding and using preferred SK algorithm to get an appropriate encryption mechanism.

Hugo

In reply to Re: Crypt::OpenPGP, encrypting messages using a public key file by hv
in thread Crypt::OpenPGP, encrypting messages using a public key file by BUU

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.