Greetings, Perl Monks! I am working on a small perl program that gives me an interface to Crypt::OpenPGP. It successfully generates encrypted text in Compat=PGP5 mode, which I can decrypt using the PGP Freeware client. However, my program cannot decrypt the very same cipher text using the Crypt::OpenPGP module. The error I get on decryption is:

encrypt: datasize not multiple of blocksize (16 bytes) at /usr/local/l
+ib/perl5/site_perl/5.8.3/Crypt/OpenPGP/CFB.pm line 59.
[download]

Here is a small test case that attempts to do the decrypt and produces the error:

#!/usr/local/bin/perl -w

use Crypt::OpenPGP;

# slurp in file of ciphertext:
  open( my $fh, "/home/nobody/tools/crypt/cipher.txt") or die "flaming
+ death\n";
  my $Data = do { local( $/ ) ; <$fh> } ;

  my $pgp = Crypt::OpenPGP->new (
         "SecRing" => "/home/nobody/.keys/secring.skr"
  );

  my $plaintext = $pgp->decrypt (
         "Compat"        => "PGP5",
         "Data"          => $Data,
         "Passphrase"    => "no, you cant have it"
  );

  die "Decryption Failed: ", $pgp->errstr unless $plaintext;

  print "plain text:\n" . $plaintext . "\n";
[download]

The code that did the crypting looks like this:

  my $pgp = Crypt::OpenPGP->new (
       "PubRing" => $PubRing
  );
    
  my $ciphertext = $pgp->encrypt (
    "Compat"    =>    $Compat,
    "Data"        =>    $Data,
    "Recipients"    =>    @recipients_list,
    "Armour"    =>    $Armour,
    );
    
  die "Encryption failed: ", $pgp->errstr unless $ciphertext;
    
  return $ciphertext;
[download]

Stuff I've Tried So Far:

• Setting the Compat mode to PGP2 or GnuPG doesn't help.
• Tried setting the cipher attribute to DES3 and Rjindael, no help

system/perl info:

• Solaris 9 sparc
• Perl 5.8.3

Any insight is greatly appreciated ^_~

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