Refactor ciphertext <-> plaintext offset translation functions

Move all the intelligence into the new file address_translation.go.
That the calculations were spread out too much became apparent when adding
the file header. This should make the code much easier to modify in the
future.

1 files changed, 1 insertions, 6 deletions

diff --git a/cryptfs/cryptfs.go b/cryptfs/cryptfs.go
index 0593214..9fe492d 100644
--- a/cryptfs/cryptfs.go
+++ b/cryptfs/cryptfs.go
@@ -13,7 +13,7 @@ const (
 	KEY_LEN         = 32 // AES-256
 	NONCE_LEN       = 12
 	AUTH_TAG_LEN    = 16
-	BLOCK_OVERHEAD = NONCE_LEN + AUTH_TAG_LEN
+	BLOCK_OVERHEAD  = NONCE_LEN + AUTH_TAG_LEN
 )
 
 type CryptFS struct {
@@ -61,8 +61,3 @@ func NewCryptFS(key []byte, useOpenssl bool) *CryptFS {
 func (be *CryptFS) PlainBS() uint64 {
 	return be.plainBS
 }
-
-// Get ciphertext block size
-func (be *CryptFS) CipherBS() uint64 {
-	return be.cipherBS
-}