You can't store all the data you need like this ;

# declare a hash of array to prepare storage of all 
# variables to be encoded together
  my $HoA{$sitename} = ["$loginid", "$password", "$url"];
  open(FILEHANDLE, ">>passmgr.dat") 
    or die("The file cannot be opened!");
  my $encode = ST2614::encode($HoA, $ARGV[1]);
  print FILEHANDLE "$encode";
  close FILEHANDLE;
[download]

Consider using a tab delimiter record format like this ;

sitename1 loginid1 encoded_password1 url1
sitename2 loginid2 encoded_password2 url2
sitename3 loginid3 encoded_password3 url3
[download]

Then you can build a HoA from the file like this

my $key = $ARGV[1] || 'secretkey';
my %HoA=();
open IN, '<','passmgr.dat' 
   or die ("The file cannot be opened!");
while (<IN>){
  chomp;
  my ($sitename,$id,$enc_password,$url) = split "\t",$_;
  my $password = ST2614::decode($enc_password, $key);
  $HoA{$sitename} = [$id,$password,$url];
  # print "$sitename $id $password $url\n";
}
[download]

and save it to the file like this

open OUT, '>','passmgr.dat'
   or die ("The file cannot be opened!");
for my $sitename (sort keys %HoA){
  my $id = $HoA{$sitename}[0];
  my $enc_password = ST2614::encode($HoA{$sitename}[1], $key);
  my $url = $HoA{$sitename}[2];
  print OUT join "\t",$sitename,$id,$enc_password,$url,"\n";
}
[download]

poj

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