Use a separate salt per file

Unfortunately this makes the program way slower for multiple files.
However, it's a critical bug to reuse salt between files.

1 files changed, 2 insertions, 3 deletions

diff --git a/dec/dec.go b/dec/dec.go
index a35b759..ce0a719 100644
--- a/dec/dec.go
+++ b/dec/dec.go
@@ -28,12 +28,11 @@ func dec() error {
 		}
 		password = string(pw)
 	}
-	pwCache := make(sym.PasswordCache)
 	if len(args) == 0 {
-		return sym.Decrypt(os.Stdout, os.Stdin, password, pwCache)
+		return sym.Decrypt(os.Stdout, os.Stdin, password)
 	}
 	for _, fileName := range args {
-		if err := sym.DecryptFile(fileName, password, pwCache); err != nil {
+		if err := sym.DecryptFile(fileName, password); err != nil {
 			return err
 		}
 	}