Better POD

diff --git a/lib/Authen/Passphrase/Scrypt.pm b/lib/Authen/Passphrase/Scrypt.pm
index fabc7aeadb41418fa90872b1b8cbe83bc4979e5c..3a43e25b3632d83f0a1a9cdb3e406b86b65db56f 100644 (file)
--- a/lib/Authen/Passphrase/Scrypt.pm
+++ b/lib/Authen/Passphrase/Scrypt.pm
@@ -98,9 +98,9 @@ Authen::Passphrase::Scrypt - passphrases using Tarsnap's scrypt algorithm
   use Authen::Passphrase::Scrypt;
 
   # Hash a password
-  my $sc = Authen::Passphrase::Scrypt->new({
+  my $sc = Authen::Passphrase::Scrypt->new(
       passphrase => 'correcthorsebatterystaple'
-  });
+  );
   my $hash = $sc->as_rfc2307;
   say "The given password hashes to $hash";
 
@@ -111,13 +111,13 @@ Authen::Passphrase::Scrypt - passphrases using Tarsnap's scrypt algorithm
   say 'The password was "xkcd"' if $sc->match('xkcd');
 
   # Advanced hashing
-  my $sc = Authen::Passphrase::Scrypt->new({
+  my $sc = Authen::Passphrase::Scrypt->new(
       passphrase => 'xkcd',
       logN       => 14, # General work factor
       r          => 16, # Memory work factor
       p          => 1,  # CPU (parallellism) work factor
       salt       => 'SodiumChloride && sODIUMcHLORIDE', # Must be 32 bytes
-  });
+  );
   say 'The given password now hashes to ', $sc->as_rfc2307;
 
 =head1 DESCRIPTION
@@ -136,10 +136,11 @@ from within L<Authen::Passphrase>. The methods are:
 
 =over
 
-=item Authen::Passphrase::Scrypt->B<new>(I<\%args>)
+=item Authen::Passphrase::Scrypt->B<new>(I<%args>)
 
 Creates a new L<Authen::Passphrase::Scrypt> from a given passphrase
-and parameters. Use this to hash a passphrase. The arguments are:
+and parameters. Use this to hash a passphrase. This function takes
+either a key value list or a hashref. The arguments are:
 
 =over
 
@@ -176,6 +177,8 @@ fine-tuning: if scrypt uses too much memory but not enough CPU,
 decrease logN and increase p; if scrypt uses too much CPU but not
 enough memory, decrease logN and increase r.
 
+Note that C<< 2^logN >> must fit in 64 bits and C<< r * p < 2^30 >>.
+
 =item $sc->B<as_rfc2307>
 
 Returns the hash of the passphrase, in RFC2307 format. This is
@@ -192,6 +195,7 @@ Returns true if the given passphrase matches the hash, false
 otherwise.
 
 =item Authen::Passphrase::Scrypt->from_crypt
+
 =item $sc->as_crypt
 
 These functions both croak. They are provided for compatibility with