}

// EncodeData encodes the given data and returns the erasure-coded data.
// It returns an error if the erasure coding failed.
func (e *Erasure) EncodeData(ctx context.Context, data []byte) ([][]byte, error) {
	if len(data) == 0 {
		return make([][]byte, e.dataBlocks+e.parityBlocks), nil
	}
	encoded, err := e.encoder().Split(data)
	if err != nil {
		return nil, err
	}
	if err = e.encoder().Encode(encoded); err != nil {

	stringToSign += getSHA256Hash([]byte(canonicalRequest))

	date := sumHMAC([]byte("AWS4"+secretKey), []byte(currTime.Format(yyyymmdd)))
	region := sumHMAC(date, []byte(globalMinioDefaultRegion))
	service := sumHMAC(region, []byte(string(serviceS3)))
	signingKey := sumHMAC(service, []byte("aws4_request"))

	signature := hex.EncodeToString(sumHMAC(signingKey, []byte(stringToSign)))

	// final Authorization header

     * @param chlng
     *            The server challenge.
     * @return A <code>byte[]</code> containing the effective user session key,
     *         used in SMB MAC signing and NTLMSSP signing and sealing.
     */
    public byte[] getUserSessionKey(CIFSContext tc, byte[] chlng) {
        byte[] key = new byte[16];
        try {
            getUserSessionKey(tc, chlng, key, 0);
        } catch (Exception ex) {

import java.io.IOException;
import java.io.OutputStream;
import org.jspecify.annotations.NullUnmarked;

/**
 * A byte sink for testing that has configurable behavior.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class TestByteSink extends ByteSink implements TestStreamSupplier {

  private final ByteArrayOutputStream bytes = new ByteArrayOutputStream();
  private final ImmutableSet<TestOption> options;

    /**
     * Decode message data from the given byte array
     *
     * @param buffer the byte array containing the message data
     * @param bufferIndex the starting index in the buffer
     * @return message length
     * @throws SMBProtocolDecodingException if decoding fails
     */
    int decode(byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException;

    /**

    // from bytes to File
    //
    /**
     * Copies from a byte array to a file.
     *
     * @param in the byte array (must not be {@literal null})
     * @param out the file (must not be {@literal null})
     * @return the number of bytes copied
     */
    public static int copy(final byte[] in, final File out) {
        assertArgumentNotNull("in", in);

        }
        bufferIndex += 2;

        // Reserved (2 bytes)
        bufferIndex += 2;

        // Flags (4 bytes)
        this.flags = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // LeaseKey (16 bytes)
        byte[] keyBytes = new byte[16];
        System.arraycopy(buffer, bufferIndex, keyBytes, 0, 16);

        dst[dstIndex] = (byte) 0x00;
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;
        dst[dstIndex++] = (byte) 0x00;
        dst[dstIndex++] = (byte) 0x00;
        SMBUtil.writeInt4(this.capabilities, dst, dstIndex);
        dstIndex += 4;

        return dstIndex - start;
    }

    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {

        maxDataCount = 0;
        maxSetupCount = (byte) 0x00;
        setupCount = 2;
    }

    @Override
    int writeSetupWireFormat(final byte[] dst, int dstIndex) {
        dst[dstIndex] = subCommand;
        dstIndex++;
        dst[dstIndex++] = (byte) 0x00;
        dst[dstIndex++] = (byte) 0x00; // no FID
        dst[dstIndex++] = (byte) 0x00;
        return 4;
    }

    @Override

                hashAlgos[i] = i;
            }
            byte[] salt = new byte[256];
            new Random(123).nextBytes(salt);

            PreauthIntegrityNegotiateContext originalContext = new PreauthIntegrityNegotiateContext(mockConfig, hashAlgos, salt);

            byte[] largeBuffer = new byte[4096];
            int encoded = originalContext.encode(largeBuffer, 0);