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libgocryptfs
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Activate block number authentication

This commit is contained in:
Jakob Unterwurzacher 2015-10-20 20:26:52 +02:00
parent a5b907b42f
commit eac1f54213
1 changed files with 2 additions and 2 deletions
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4
cryptfs/cryptfs_content.go
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@ -78,7 +78,7 @@ func (be *CryptFS) DecryptBlock(ciphertext []byte, blockNo uint64) ([]byte, erro
var plaintext []byte
aData := make([]byte, 8)
binary.BigEndian.PutUint64(aData, blockNo)
plaintext, err := be.gcm.Open(plaintext, nonce, ciphertext, nil)
plaintext, err := be.gcm.Open(plaintext, nonce, ciphertext, aData)
if err != nil {
Warn.Printf("DecryptBlock: %s, len=%d, md5=%s\n", err.Error(), len(ciphertextOrig), Warn.Md5sum(ciphertextOrig))
@ -103,7 +103,7 @@ func (be *CryptFS) EncryptBlock(plaintext []byte, blockNo uint64) []byte {
// Encrypt plaintext and append to nonce
aData := make([]byte, 8)
binary.BigEndian.PutUint64(aData, blockNo)
ciphertext := be.gcm.Seal(nonce, nonce, plaintext, nil)
ciphertext := be.gcm.Seal(nonce, nonce, plaintext, aData)
return ciphertext
}