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authorJakob Unterwurzacher2017-03-05 17:44:14 +0100
committerJakob Unterwurzacher2017-03-05 17:44:14 +0100
commit966308eeb7793a4a8ca578e160981e3b059b82e6 (patch)
tree36b0b6d192b26b7c3addcd74bbc566a40736773c /internal/cryptocore
parente6461634422e7713d1863b416934297a8f6c4244 (diff)
Drop Go 1.4 compatability code everywhere
Yields a nice reduction in code size.
Diffstat (limited to 'internal/cryptocore')
-rw-r--r--internal/cryptocore/cryptocore.go2
-rw-r--r--internal/cryptocore/cryptocore_go1.4_test.go20
-rw-r--r--internal/cryptocore/cryptocore_go1.5_test.go16
-rw-r--r--internal/cryptocore/cryptocore_test.go5
-rw-r--r--internal/cryptocore/gcm_go1.4.go29
-rw-r--r--internal/cryptocore/gcm_go1.5.go21
6 files changed, 5 insertions, 88 deletions
diff --git a/internal/cryptocore/cryptocore.go b/internal/cryptocore/cryptocore.go
index fea0c94..735c409 100644
--- a/internal/cryptocore/cryptocore.go
+++ b/internal/cryptocore/cryptocore.go
@@ -74,7 +74,7 @@ func New(key []byte, aeadType AEADTypeEnum, IVBitLen int) *CryptoCore {
}
aeadCipher = stupidgcm.New(key)
case BackendGoGCM:
- aeadCipher, err = goGCMWrapper(blockCipher, IVLen)
+ aeadCipher, err = cipher.NewGCMWithNonceSize(blockCipher, IVLen)
case BackendAESSIV:
if IVLen != 16 {
// SIV supports any nonce size, but we only use 16.
diff --git a/internal/cryptocore/cryptocore_go1.4_test.go b/internal/cryptocore/cryptocore_go1.4_test.go
deleted file mode 100644
index 14e1e03..0000000
--- a/internal/cryptocore/cryptocore_go1.4_test.go
+++ /dev/null
@@ -1,20 +0,0 @@
-// +build !go1.5
-// = go 1.4 or lower
-
-package cryptocore
-
-import (
- "testing"
-)
-
-// Native Go crypto with 128-bit IVs is only supported on Go 1.5 and up,
-// this should panic.
-func TestCryptoCoreNewGo14(t *testing.T) {
- defer func() {
- if r := recover(); r == nil {
- t.Errorf("The code did not panic")
- }
- }()
- key := make([]byte, 32)
- New(key, BackendGoGCM, 128)
-}
diff --git a/internal/cryptocore/cryptocore_go1.5_test.go b/internal/cryptocore/cryptocore_go1.5_test.go
deleted file mode 100644
index f9d38e9..0000000
--- a/internal/cryptocore/cryptocore_go1.5_test.go
+++ /dev/null
@@ -1,16 +0,0 @@
-// +build go1.5
-// = go 1.5 or higher
-
-package cryptocore
-
-import (
- "testing"
-)
-
-func TestCryptoCoreNewGo15(t *testing.T) {
- key := make([]byte, 32)
- c := New(key, BackendGoGCM, 128)
- if c.IVLen != 16 {
- t.Fail()
- }
-}
diff --git a/internal/cryptocore/cryptocore_test.go b/internal/cryptocore/cryptocore_test.go
index c54eac9..252c311 100644
--- a/internal/cryptocore/cryptocore_test.go
+++ b/internal/cryptocore/cryptocore_test.go
@@ -16,7 +16,10 @@ func TestCryptoCoreNew(t *testing.T) {
if c.IVLen != 12 {
t.Fail()
}
- // "New(key, BackendGoGCM, 128)" is tested for Go 1.4 and 1.5+ separately
+ c = New(key, BackendGoGCM, 128)
+ if c.IVLen != 16 {
+ t.Fail()
+ }
}
// "New" should panic on any key not 32 bytes long
diff --git a/internal/cryptocore/gcm_go1.4.go b/internal/cryptocore/gcm_go1.4.go
deleted file mode 100644
index c1aa488..0000000
--- a/internal/cryptocore/gcm_go1.4.go
+++ /dev/null
@@ -1,29 +0,0 @@
-// +build !go1.5
-// = go 1.4 or lower
-
-package cryptocore
-
-import (
- "crypto/cipher"
- "fmt"
-
- "github.com/rfjakob/gocryptfs/internal/tlog"
-)
-
-const (
- // HaveModernGoGCM indicates if Go GCM supports 128-bit nonces
- HaveModernGoGCM = false
-)
-
-// goGCMWrapper - This wrapper makes sure gocryptfs can be compiled on Go
-// versions 1.4 and lower that lack NewGCMWithNonceSize().
-// 128 bit GCM IVs will not work when using built-in Go crypto, obviously, when
-// compiled on 1.4.
-func goGCMWrapper(bc cipher.Block, nonceSize int) (cipher.AEAD, error) {
- if nonceSize != 12 {
- tlog.Warn.Printf("128 bit GCM IVs are not supported by Go 1.4 and lower.")
- tlog.Warn.Printf("Please use openssl crypto or recompile using a newer Go runtime.")
- return nil, fmt.Errorf("128 bit GCM IVs are not supported by Go 1.4 and lower")
- }
- return cipher.NewGCM(bc)
-}
diff --git a/internal/cryptocore/gcm_go1.5.go b/internal/cryptocore/gcm_go1.5.go
deleted file mode 100644
index 3c38357..0000000
--- a/internal/cryptocore/gcm_go1.5.go
+++ /dev/null
@@ -1,21 +0,0 @@
-// +build go1.5
-// = go 1.5 or higher
-
-package cryptocore
-
-import (
- "crypto/cipher"
-)
-
-const (
- // HaveModernGoGCM indicates if Go GCM supports 128-bit nonces
- HaveModernGoGCM = true
-)
-
-// goGCMWrapper - This wrapper makes sure gocryptfs can be compiled on Go
-// versions 1.4 and lower that lack NewGCMWithNonceSize().
-// 128 bit GCM IVs will not work when using built-in Go crypto, obviously, when
-// compiled on 1.4.
-func goGCMWrapper(bc cipher.Block, nonceSize int) (cipher.AEAD, error) {
- return cipher.NewGCMWithNonceSize(bc, nonceSize)
-}