diff options
author | Jakob Unterwurzacher | 2015-10-04 14:36:20 +0200 |
---|---|---|
committer | Jakob Unterwurzacher | 2015-10-04 14:49:47 +0200 |
commit | 89fef80d32708874c95742db0a7b593bcfd3b31d (patch) | |
tree | adffeac51b1e945e32583b07ab0328a3c2539aad /cryptfs | |
parent | 5bd08abf4095fb553355c9b007c8ae4a4314b970 (diff) |
Run go fmt
Diffstat (limited to 'cryptfs')
-rw-r--r-- | cryptfs/config_file.go | 2 | ||||
-rw-r--r-- | cryptfs/content_test.go | 12 | ||||
-rw-r--r-- | cryptfs/cryptfs.go | 24 | ||||
-rw-r--r-- | cryptfs/cryptfs_content.go | 22 | ||||
-rw-r--r-- | cryptfs/cryptfs_names.go | 14 | ||||
-rw-r--r-- | cryptfs/intrablock.go | 12 | ||||
-rw-r--r-- | cryptfs/kdf.go | 8 | ||||
-rw-r--r-- | cryptfs/names_test.go | 10 | ||||
-rw-r--r-- | cryptfs/nonce.go | 8 | ||||
-rw-r--r-- | cryptfs/openssl_aead.go | 4 |
10 files changed, 58 insertions, 58 deletions
diff --git a/cryptfs/config_file.go b/cryptfs/config_file.go index a3f6ba3..74eb3b2 100644 --- a/cryptfs/config_file.go +++ b/cryptfs/config_file.go @@ -1,8 +1,8 @@ package cryptfs import ( - "io/ioutil" "encoding/json" + "io/ioutil" ) import "os" diff --git a/cryptfs/content_test.go b/cryptfs/content_test.go index 8f1d48b..ab48b21 100644 --- a/cryptfs/content_test.go +++ b/cryptfs/content_test.go @@ -1,8 +1,8 @@ package cryptfs import ( - "testing" "fmt" + "testing" ) type testRange struct { @@ -22,9 +22,9 @@ func TestSplitRange(t *testing.T) { key := make([]byte, 16) f := NewCryptFS(key, true) - for _, r := range(ranges) { + for _, r := range ranges { parts := f.SplitRange(r.offset, r.length) - for _, p := range(parts) { + for _, p := range parts { if p.Length > DEFAULT_PLAINBS || p.Skip >= DEFAULT_PLAINBS { fmt.Printf("Test fail: n=%d, length=%d, offset=%d\n", p.BlockNo, p.Length, p.Skip) t.Fail() @@ -45,15 +45,15 @@ func TestCiphertextRange(t *testing.T) { key := make([]byte, 16) f := NewCryptFS(key, true) - for _, r := range(ranges) { + for _, r := range ranges { alignedOffset, alignedLength, skipBytes := f.CiphertextRange(r.offset, r.length) if alignedLength < r.length { t.Fail() } - if alignedOffset % f.cipherBS != 0 { + if alignedOffset%f.cipherBS != 0 { t.Fail() } - if r.offset % f.plainBS != 0 && skipBytes == 0 { + if r.offset%f.plainBS != 0 && skipBytes == 0 { t.Fail() } } diff --git a/cryptfs/cryptfs.go b/cryptfs/cryptfs.go index 46f5b65..c58481c 100644 --- a/cryptfs/cryptfs.go +++ b/cryptfs/cryptfs.go @@ -3,23 +3,23 @@ package cryptfs // CryptFS is the crypto backend of GoCryptFS import ( - "fmt" - "crypto/cipher" "crypto/aes" + "crypto/cipher" + "fmt" ) const ( - KEY_LEN = 16 - NONCE_LEN = 12 - AUTH_TAG_LEN = 16 + KEY_LEN = 16 + NONCE_LEN = 12 + AUTH_TAG_LEN = 16 DEFAULT_PLAINBS = 4096 ) type CryptFS struct { blockCipher cipher.Block - gcm cipher.AEAD - plainBS uint64 - cipherBS uint64 + gcm cipher.AEAD + plainBS uint64 + cipherBS uint64 // Stores an all-zero block of size cipherBS allZeroBlock []byte } @@ -50,10 +50,10 @@ func NewCryptFS(key []byte, useOpenssl bool) *CryptFS { cipherBS := DEFAULT_PLAINBS + NONCE_LEN + AUTH_TAG_LEN return &CryptFS{ - blockCipher: b, - gcm: gcm, - plainBS: DEFAULT_PLAINBS, - cipherBS: uint64(cipherBS), + blockCipher: b, + gcm: gcm, + plainBS: DEFAULT_PLAINBS, + cipherBS: uint64(cipherBS), allZeroBlock: make([]byte, cipherBS), } } diff --git a/cryptfs/cryptfs_content.go b/cryptfs/cryptfs_content.go index 761fef5..6444b8b 100644 --- a/cryptfs/cryptfs_content.go +++ b/cryptfs/cryptfs_content.go @@ -4,11 +4,11 @@ package cryptfs import ( "bytes" - "os" - "errors" "crypto/cipher" "crypto/md5" "encoding/hex" + "errors" + "os" ) const ( @@ -25,7 +25,7 @@ func md5sum(buf []byte) string { type CryptFile struct { file *os.File - gcm cipher.AEAD + gcm cipher.AEAD } // DecryptBlocks - Decrypt a number of blocks @@ -113,7 +113,7 @@ func (be *CryptFS) SplitRange(offset uint64, length uint64) []intraBlock { for length > 0 { b.BlockNo = offset / be.plainBS b.Skip = offset % be.plainBS - b.Length = be.minu64(length, be.plainBS - b.Skip) + b.Length = be.minu64(length, be.plainBS-b.Skip) parts = append(parts, b) offset += b.Length length -= b.Length @@ -131,7 +131,7 @@ func (be *CryptFS) PlainSize(size uint64) uint64 { overhead := be.cipherBS - be.plainBS nBlocks := (size + be.cipherBS - 1) / be.cipherBS - if nBlocks * overhead > size { + if nBlocks*overhead > size { Warn.Printf("PlainSize: Negative size, returning 0 instead\n") return 0 } @@ -164,7 +164,7 @@ func (be *CryptFS) CiphertextRange(offset uint64, length uint64) (alignedOffset skip := offset % be.plainBS firstBlockNo := offset / be.plainBS - lastBlockNo := ( offset + length - 1 ) / be.plainBS + lastBlockNo := (offset + length - 1) / be.plainBS alignedOffset = firstBlockNo * be.cipherBS alignedLength = (lastBlockNo - firstBlockNo + 1) * be.cipherBS @@ -191,10 +191,10 @@ func (be *CryptFS) CropPlaintext(plaintext []byte, blocks []intraBlock) []byte { last := blocks[len(blocks)-1] length := (last.BlockNo - blocks[0].BlockNo + 1) * be.plainBS var cropped []byte - if offset + length > uint64(len(plaintext)) { + if offset+length > uint64(len(plaintext)) { cropped = plaintext[offset:len(plaintext)] } else { - cropped = plaintext[offset:offset+length] + cropped = plaintext[offset : offset+length] } return cropped } @@ -209,7 +209,7 @@ func (be *CryptFS) MergeBlocks(oldData []byte, newData []byte, offset int) []byt // Copy old and new data into it copy(out, oldData) l := len(newData) - copy(out[offset:offset + l], newData) + copy(out[offset:offset+l], newData) // Crop to length outLen := len(oldData) @@ -222,10 +222,10 @@ func (be *CryptFS) MergeBlocks(oldData []byte, newData []byte, offset int) []byt // Get the block number at plain-text offset func (be *CryptFS) BlockNoPlainOff(plainOffset uint64) uint64 { - return plainOffset / be.plainBS + return plainOffset / be.plainBS } // Get the block number at ciphter-text offset func (be *CryptFS) BlockNoCipherOff(cipherOffset uint64) uint64 { - return cipherOffset / be.cipherBS + return cipherOffset / be.cipherBS } diff --git a/cryptfs/cryptfs_names.go b/cryptfs/cryptfs_names.go index f694fa5..5476b17 100644 --- a/cryptfs/cryptfs_names.go +++ b/cryptfs/cryptfs_names.go @@ -3,12 +3,12 @@ package cryptfs // Filename encryption / decryption function import ( - "crypto/cipher" "crypto/aes" - "fmt" - "strings" + "crypto/cipher" "encoding/base64" "errors" + "fmt" + "strings" ) const ( @@ -30,7 +30,7 @@ func (be *CryptFS) decryptName(cipherName string) (string, error) { return "", err } - if len(bin) % aes.BlockSize != 0 { + if len(bin)%aes.BlockSize != 0 { return "", errors.New(fmt.Sprintf("Name len=%d is not a multiple of 16", len(bin))) } @@ -120,7 +120,7 @@ func (be *CryptFS) pad16(orig []byte) (padded []byte) { if oldLen == 0 { panic("Padding zero-length string makes no sense") } - padLen := aes.BlockSize - oldLen % aes.BlockSize + padLen := aes.BlockSize - oldLen%aes.BlockSize if padLen == 0 { padLen = aes.BlockSize } @@ -137,11 +137,11 @@ func (be *CryptFS) pad16(orig []byte) (padded []byte) { // unPad16 - remove padding func (be *CryptFS) unPad16(orig []byte) ([]byte, error) { oldLen := len(orig) - if oldLen % aes.BlockSize != 0 { + if oldLen%aes.BlockSize != 0 { return nil, errors.New("Unaligned size") } // The last byte is always a padding byte - padByte := orig[oldLen -1] + padByte := orig[oldLen-1] // The padding byte's value is the padding length padLen := int(padByte) // Padding must be at least 1 byte diff --git a/cryptfs/intrablock.go b/cryptfs/intrablock.go index 552cb3c..7f3a1eb 100644 --- a/cryptfs/intrablock.go +++ b/cryptfs/intrablock.go @@ -2,10 +2,10 @@ package cryptfs // intraBlock identifies a part of a file block type intraBlock struct { - BlockNo uint64 // Block number in file - Skip uint64 // Offset into block plaintext - Length uint64 // Length of data from this block - fs *CryptFS + BlockNo uint64 // Block number in file + Skip uint64 // Offset into block plaintext + Length uint64 // Length of data from this block + fs *CryptFS } // isPartial - is the block partial? This means we have to do read-modify-write. @@ -29,9 +29,9 @@ func (ib *intraBlock) PlaintextRange() (offset uint64, length uint64) { } // CropBlock - crop a potentially larger plaintext block down to the relevant part -func (ib *intraBlock) CropBlock(d []byte) []byte{ +func (ib *intraBlock) CropBlock(d []byte) []byte { lenHave := len(d) - lenWant := int(ib.Skip+ib.Length) + lenWant := int(ib.Skip + ib.Length) if lenHave < lenWant { return d[ib.Skip:lenHave] } diff --git a/cryptfs/kdf.go b/cryptfs/kdf.go index 275c72e..32870cd 100644 --- a/cryptfs/kdf.go +++ b/cryptfs/kdf.go @@ -12,10 +12,10 @@ const ( ) type scryptKdf struct { - Salt []byte - N int - R int - P int + Salt []byte + N int + R int + P int KeyLen int } diff --git a/cryptfs/names_test.go b/cryptfs/names_test.go index 7e20690..dd57242 100644 --- a/cryptfs/names_test.go +++ b/cryptfs/names_test.go @@ -1,8 +1,8 @@ package cryptfs import ( - "testing" "bytes" + "testing" ) func TestTranslatePath(t *testing.T) { @@ -14,7 +14,7 @@ func TestTranslatePath(t *testing.T) { key := make([]byte, 16) fs := NewCryptFS(key, true) - for _, n := range(s) { + for _, n := range s { c := fs.EncryptPath(n) d, err := fs.DecryptPath(c) if err != nil { @@ -36,13 +36,13 @@ func TestPad16(t *testing.T) { key := make([]byte, 16) fs := NewCryptFS(key, true) - for i := range(s) { + for i := range s { orig := s[i] padded := fs.pad16(orig) if len(padded) <= len(orig) { t.Errorf("Padded length not bigger than orig: %d", len(padded)) } - if len(padded) % 16 != 0 { + if len(padded)%16 != 0 { t.Errorf("Length is not aligend: %d", len(padded)) } unpadded, err := fs.unPad16(padded) @@ -52,7 +52,7 @@ func TestPad16(t *testing.T) { if len(unpadded) != len(orig) { t.Errorf("Size mismatch: orig=%d unpadded=%d", len(s[i]), len(unpadded)) } - if ! bytes.Equal(orig, unpadded) { + if !bytes.Equal(orig, unpadded) { t.Error("Content mismatch orig vs unpadded") } } diff --git a/cryptfs/nonce.go b/cryptfs/nonce.go index 3e464a3..80134c3 100644 --- a/cryptfs/nonce.go +++ b/cryptfs/nonce.go @@ -1,17 +1,17 @@ package cryptfs import ( + "crypto/rand" "encoding/binary" "encoding/hex" "sync" - "crypto/rand" ) type nonce96 struct { - lock sync.Mutex + lock sync.Mutex high32 uint32 - low64 uint64 - ready int + low64 uint64 + ready int } var gcmNonce nonce96 diff --git a/cryptfs/openssl_aead.go b/cryptfs/openssl_aead.go index 02f50d8..b743a3e 100644 --- a/cryptfs/openssl_aead.go +++ b/cryptfs/openssl_aead.go @@ -66,8 +66,8 @@ func (be opensslGCM) Open(dst, nonce, ciphertext, data []byte) ([]byte, error) { } l := len(ciphertext) - tag := ciphertext[l-AUTH_TAG_LEN:l] - ciphertext = ciphertext[0:l-AUTH_TAG_LEN] + tag := ciphertext[l-AUTH_TAG_LEN : l] + ciphertext = ciphertext[0 : l-AUTH_TAG_LEN] plainBuf := bytes.NewBuffer(dst) dctx, err := openssl.NewGCMDecryptionCipherCtx(128, nil, be.key[:], nonce[:]) |