From 88010542443bf1f83906a0bbf7e3003d045471f6 Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Tue, 7 Jun 2011 15:50:37 +0200
Subject: Raps2/Password: Accept salt for encrypt/decrypt, makes Raps2.pm less
 messy

---
 lib/App/Raps2.pm          | 21 +++++++--------------
 lib/App/Raps2/Password.pm | 26 ++++++++++++++++++--------
 2 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/lib/App/Raps2.pm b/lib/App/Raps2.pm
index 133b898..7de4b1a 100644
--- a/lib/App/Raps2.pm
+++ b/lib/App/Raps2.pm
@@ -126,12 +126,10 @@ sub ui {
 sub pw_add {
 	my ( $self, %data ) = @_;
 
-	$self->pw->salt( $data{salt} );
-
-	my $pass_hash  = $self->pw->encrypt( $data{password} );
+	my $pass_hash = $self->pw->encrypt( $data{password}, $data{salt} );
 	my $extra_hash = (
 		  $data{extra}
-		? $self->pw->encrypt( $data{extra} )
+		? $self->pw->encrypt( $data{extra}, $data{salt} )
 		: q{}
 	);
 
@@ -181,15 +179,13 @@ sub pw_get {
 
 	my %key = $self->file_to_hash( $data{file} );
 
-	$self->pw->salt( $key{salt} );
-
 	return {
 		url      => $key{url},
 		login    => $key{login},
-		password => $self->pw->decrypt( $key{hash} ),
+		password => $self->pw->decrypt( $key{hash}, $key{salt} ),
 		extra    => (
 			  $key{extra}
-			? $self->pw->decrypt( $key{extra} )
+			? $self->pw->decrypt( $key{extra}, $key{salt} )
 			: undef
 		),
 	};
@@ -233,7 +229,6 @@ sub cmd_edit {
 	my %key = $self->file_to_hash($pwfile);
 
 	$self->get_master_password();
-	$self->pw->salt( $key{salt} );
 
 	my $salt  = $key{salt};
 	my $url   = $self->ui->read_line( 'URL', $key{url} );
@@ -242,7 +237,7 @@ sub cmd_edit {
 	my $extra = $key{extra} // q{};
 
 	if ( length($pass) ) {
-		$pass_hash = $self->pw->encrypt($pass);
+		$pass_hash = $self->pw->encrypt( $pass, $salt );
 	}
 	else {
 		$pass_hash = $key{hash};
@@ -272,12 +267,10 @@ sub cmd_get {
 
 	$self->get_master_password();
 
-	$self->pw->salt( $key{salt} );
-
-	$self->ui()->to_clipboard( $self->pw->decrypt( $key{hash} ) );
+	$self->ui()->to_clipboard( $self->pw->decrypt( $key{hash}, $key{salt} ) );
 
 	if ( $key{extra} ) {
-		print $self->pw->decrypt( $key{extra} );
+		print $self->pw->decrypt( $key{extra}, $key{salt} );
 	}
 
 	return;
diff --git a/lib/App/Raps2/Password.pm b/lib/App/Raps2/Password.pm
index 1a3ab63..3662c29 100644
--- a/lib/App/Raps2/Password.pm
+++ b/lib/App/Raps2/Password.pm
@@ -59,20 +59,24 @@ sub salt {
 }
 
 sub encrypt {
-	my ( $self, $in ) = @_;
+	my ( $self, $in, $salt ) = @_;
 
-	my $eksblowfish = Crypt::Eksblowfish->new( $self->{cost}, $self->{salt},
-		$self->{passphrase}, );
+	$salt //= $self->{salt};
+
+	my $eksblowfish
+	  = Crypt::Eksblowfish->new( $self->{cost}, $salt, $self->{passphrase}, );
 	my $cbc = Crypt::CBC->new( -cipher => $eksblowfish );
 
 	return $cbc->encrypt_hex($in);
 }
 
 sub decrypt {
-	my ( $self, $in ) = @_;
+	my ( $self, $in, $salt ) = @_;
+
+	$salt //= $self->{salt};
 
-	my $eksblowfish = Crypt::Eksblowfish->new( $self->{cost}, $self->{salt},
-		$self->{passphrase}, );
+	my $eksblowfish
+	  = Crypt::Eksblowfish->new( $self->{cost}, $salt, $self->{passphrase}, );
 	my $cbc = Crypt::CBC->new( -cipher => $eksblowfish );
 
 	return $cbc->decrypt_hex($in);
@@ -169,15 +173,21 @@ Returns a new 16-byte salt. Contains only printable characters.
 
 Returns the currently used salt and optionally changes it to I<salt>.
 
-=item $pass->encrypt(I<data>)
+=item $pass->encrypt(I<data>, [I<salt>])
 
 Encrypts I<data> with the passphrase saved in the object, returns the
 corresponding hexadecimal hash (as string).
 
-=item $pass->decrypt(I<hexstr>)
+By default, the salt set in B<salt> or B<new> will be used. You can override
+it by specifying I<salt>.
+
+=item $pass->decrypt(I<hexstr>, [I<salt>])
 
 Decrypts I<hexstr> (as created by B<encrypt>), returns its original content.
 
+By default, the salt set in B<salt> or B<new> will be used. You can override
+it by specifying I<salt>.
+
 =item $pass->bcrypt()
 
 Return a base64 bcrypt hash of the password, salted with the salt.
-- 
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