ByteArrayOutputStream baos = new ByteArrayOutputStream();
        writeLittleEndianInt(baos, PacSignature.KERB_CHECKSUM_HMAC_MD5);
        byte[] checksum = new byte[16];
        for (int i = 0; i < checksum.length; i++) {
            checksum[i] = (byte) i;
        }
        baos.write(checksum);
        byte[] data = baos.toByteArray();

        // Create PacSignature
        PacSignature pacSignature = new PacSignature(data);

    return toString;
  }

  /** Hasher that updates a checksum. */
  private final class ChecksumHasher extends AbstractByteHasher {
    private final Checksum checksum;

    private ChecksumHasher(Checksum checksum) {
      this.checksum = checkNotNull(checksum);
    }

    @Override
    protected void update(byte b) {
      checksum.update(b);
    }

    @Override

        } catch (final IOException e) {
            throw new PACDecodingException("Malformed PAC signature", e);
        }
    }

    /**
     * Gets the checksum type of this signature.
     *
     * @return the checksum type constant
     */
    public int getType() {
        return this.type;
    }

    /**
     * Gets the checksum data.
     *
     * @return the checksum bytes
     */

				if err != nil {
					err = msgp.WrapError(err, "MinioEnv", za0002)
					return
				}
				z.MinioEnv[za0002] = za0003
			}
		case "Checksum":
			z.Checksum, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Checksum")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

         */
        @Nonnull
        String getName();

        /**
         * Returns the file extension to be used for given checksum file (without leading dot), never {@code null}. The
         * extension should be file and URL path friendly, and may differ from algorithm name.
         * The checksum extension SHOULD NOT contain dot (".") character.
         * Example: "sha1".
         */
        @Nonnull

const minIOErasureUpgraded = "x-minio-internal-erasure-upgraded"

const erasureAlgorithm = "rs-vandermonde"

// GetChecksumInfo - get checksum of a part.
func (e ErasureInfo) GetChecksumInfo(partNumber int) (ckSum ChecksumInfo) {
	for _, sum := range e.Checksums {
		if sum.PartNumber == partNumber {
			// Return the checksum
			return sum
		}
	}
	return ChecksumInfo{Algorithm: DefaultBitrotAlgorithm}
}

			hash.Write(msg)
			sum = hash.Sum(sum[:0])
			msg = append(msg, sum...)
			hash.Reset()
		}
		if !bytes.Equal(sum, checksum) {
			logger.Fatal(errSelfTestFailure, fmt.Sprintf("bitrot: %v selftest checksum mismatch: got %x - want %x", algorithm, sum, checksum))
		}
	}

	"hash/crc64"
	"math/bits"
)

// AddPart will merge a part checksum into the current,
// as if the content of each was appended.
// The size of the content that produced the second checksum must be provided.
// Not all checksum types can be merged, use the CanMerge method to check.
// Checksum types must match.
func (c *Checksum) AddPart(other Checksum, size int64) error {
	if !other.Type.CanMerge() {

                        // file...we'll try again with the MD5 checksum.
                        try {
                            verifyChecksum(md5ChecksumObserver, destination, temp, remotePath, ".md5", wagon);
                        } catch (ChecksumFailedException e) {
                            // if we also fail to verify based on the MD5 checksum, and the checksum transfer/read

  }

  private static void assertChecksum(ImmutableSupplier<Checksum> supplier, String input) {
    byte[] bytes = HashTestUtils.ascii(input);

    Checksum checksum = supplier.get();
    checksum.update(bytes, 0, bytes.length);
    long value = checksum.getValue();

    String toString = "name";
    HashFunction func = new ChecksumHashFunction(supplier, 32, toString);