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-rw-r--r--cryptfs/gcm_go1.5.go16
1 files changed, 16 insertions, 0 deletions
diff --git a/cryptfs/gcm_go1.5.go b/cryptfs/gcm_go1.5.go
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+++ b/cryptfs/gcm_go1.5.go
@@ -0,0 +1,16 @@
+// +build go1.5
+// = go 1.5 or higher
+
+package cryptfs
+
+import (
+ "crypto/cipher"
+)
+
+// 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)
+}