diff options
Diffstat (limited to 'cryptfs/cryptfs_content.go')
| -rw-r--r-- | cryptfs/cryptfs_content.go | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/cryptfs/cryptfs_content.go b/cryptfs/cryptfs_content.go index cfd488b..25293a7 100644 --- a/cryptfs/cryptfs_content.go +++ b/cryptfs/cryptfs_content.go @@ -86,7 +86,7 @@ func (be *CryptFS) DecryptBlock(ciphertext []byte, blockNo uint64, fileId []byte } // encryptBlock - Encrypt and add IV and MAC -func (be *CryptFS) EncryptBlock(plaintext []byte, blockNo uint64, fileId []byte) []byte { +func (be *CryptFS) EncryptBlock(plaintext []byte, blockNo uint64, fileID []byte) []byte { // Empty block? if len(plaintext) == 0 { @@ -96,10 +96,12 @@ func (be *CryptFS) EncryptBlock(plaintext []byte, blockNo uint64, fileId []byte) // Get fresh nonce nonce := gcmNonce.Get() - // Encrypt plaintext and append to nonce + // Authenticate block with block number and file ID aData := make([]byte, 8) binary.BigEndian.PutUint64(aData, blockNo) - aData = append(aData, fileId...) + aData = append(aData, fileID...) + + // Encrypt plaintext and append to nonce ciphertext := be.gcm.Seal(nonce, nonce, plaintext, aData) return ciphertext |