diff options
Diffstat (limited to 'internal/cryptocore')
| -rw-r--r-- | internal/cryptocore/cryptocore.go | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/internal/cryptocore/cryptocore.go b/internal/cryptocore/cryptocore.go index 1ad928d..aafe12b 100644 --- a/internal/cryptocore/cryptocore.go +++ b/internal/cryptocore/cryptocore.go @@ -72,7 +72,7 @@ func New(key []byte, aeadType AEADTypeEnum, IVBitLen int, useHKDF bool, forceDec emeCipher = eme.New(emeBlockCipher) } - // Initilize an AEAD cipher for file content encryption. + // Initialize an AEAD cipher for file content encryption. var aeadCipher cipher.AEAD if aeadType == BackendOpenSSL || aeadType == BackendGoGCM { gcmKey := key @@ -84,7 +84,13 @@ func New(key []byte, aeadType AEADTypeEnum, IVBitLen int, useHKDF bool, forceDec if IVLen != 16 { log.Panic("stupidgcm only supports 128-bit IVs") } - aeadCipher = stupidgcm.New(gcmKey, forceDecode) + // stupidgcm does not create a private copy of the key, so things + // break when initFuseFrontend() overwrites it with zeros. Create + // a copy here. This is unneccessary when useHKDF == true, but + // does no harm. + var stupidgcmKey []byte + stupidgcmKey = append(stupidgcmKey, gcmKey...) + aeadCipher = stupidgcm.New(stupidgcmKey, forceDecode) case BackendGoGCM: goGcmBlockCipher, err := aes.NewCipher(gcmKey) if err != nil { |