*/
    private static byte[] buildSmb2Header() {
        byte[] header = Arrays.copyOf(SMBUtil.SMB2_HEADER, SMBUtil.SMB2_HEADER.length);
        // Mark as server->client response for realism
        SMBUtil.writeInt4(0x00000001, header, 16); // Flags
        // Command SMB2_CREATE (0x0005)
        SMBUtil.writeInt2(0x0005, header, 12);
        // Some message id
        SMBUtil.writeInt8(1L, header, 24);

	var bin [4]byte
	binary.LittleEndian.PutUint32(bin[:], id)

	mac := hmac.New(sha256.New, key[:])
	mac.Write(bin[:])
	mac.Sum(partKey[:0])
	return partKey
}

// SealETag seals the etag using the object key.
// It does not encrypt empty ETags because such ETags indicate
// that the S3 client hasn't sent an ETag = MD5(object) and
// the backend can pick an ETag value.

func (o *ObjectInfo) compressionIndexDecrypt(input []byte, h http.Header) ([]byte, error) {
	return o.metadataDecrypter(h)("compression-index", input)
}

// SealMD5CurrFn seals md5sum with object encryption key and returns sealed
// md5sum
type SealMD5CurrFn func([]byte) []byte

// PutObjReader is a type that wraps sio.EncryptReader and
// underlying hash.Reader in a struct

hash[:]) for i := range out { out[i] ^= tagMask[i] } } func seal(out []byte, g *GCM, nonce, plaintext, data []byte) { switch { case useGCM: sealKMA(out, g, nonce, plaintext, data) case useGHASH: sealAsm(out, g, nonce, plaintext, data) default: sealGeneric(out, g, nonce, plaintext, data) } } func sealAsm(out []byte, g *GCM, nonce, plaintext, additionalData []byte) { var counter, tagMask [gcmBlockSize]byte deriveCounter(&g.hashKey, &counter, nonce) counterCrypt(g, tagMask[:], tagMask[:], &counter)...

hash[:]) for i := range out { out[i] ^= tagMask[i] } } func seal(out []byte, g *GCM, nonce, plaintext, data []byte) { switch { case useGCM: sealKMA(out, g, nonce, plaintext, data) case useGHASH: sealAsm(out, g, nonce, plaintext, data) default: sealGeneric(out, g, nonce, plaintext, data) } } func sealAsm(out []byte, g *GCM, nonce, plaintext, additionalData []byte) { var counter, tagMask [gcmBlockSize]byte deriveCounter(&g.hashKey, &counter, nonce) counterCrypt(g, tagMask[:], tagMask[:], &counter)...

thing a Lobster Quadrille is!'

  `No, indeed,' said Alice.  `What sort of a dance is it?'

  `Why,' said the Gryphon, `you first form into a line along the sea-shore--'

  `Two lines!' cried the Mock Turtle.  `Seals, turtles, salmon, and so on;
then, when you've cleared all the jelly-fish out of the way--'

  `THAT generally takes some time,' interrupted the Gryphon.

  `--you advance twice--'