From 4cb6e8e530070a393b3143dd9e01bf8d73fe4f09 Mon Sep 17 00:00:00 2001
From: alexmullins <jamminalex@gmail.com>
Date: Thu, 26 Nov 2015 18:45:48 -0600
Subject: [PATCH] Check for nil Password

---
 crypto.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crypto.go b/crypto.go
index 11e5212..038a8be 100644
--- a/crypto.go
+++ b/crypto.go
@@ -278,6 +278,9 @@ func newDecryptionReader(r *io.SectionReader, f *File) (io.Reader, error) {
 	salt := saltpwvv[:saltLen]
 	pwvv := saltpwvv[saltLen : saltLen+2]
 	// generate keys
+	if f.Password == nil {
+		return nil, ErrPassword
+	}
 	decKey, authKey, pwv := generateKeys(f.Password(), salt, keyLen)
 	// check password verifier (pwv)
 	// Change to use crypto/subtle for constant time comparison