NEndpoints int
	CmdLines   []string
	MinioEnv   map[string]string
	Checksum   string
}

// Diff - returns error on first difference found in two configs.
func (s1 *ServerSystemConfig) Diff(s2 *ServerSystemConfig) error {
	if s1.Checksum != s2.Checksum {
		return fmt.Errorf("Expected MinIO binary checksum: %s, seen: %s", s1.Checksum, s2.Checksum)
	}

	ns1 := s1.NEndpoints
	ns2 := s2.NEndpoints
	if ns1 != ns2 {

	r.md5.Write(p[:n])

	if err == io.EOF && len(r.checksum) != 0 {
		if etag := r.ETag(); !Equal(etag, r.checksum) {
			return n, VerifyError{
				Expected: r.checksum,
				Computed: etag,
			}
		}
	}
	return n, err
}

// ETag returns the ETag of all the content read
// so far. Reading more content changes the MD5
// checksum. Therefore, calling ETag multiple
// times may return different results.

			}
			if unMarshalXLMeta.Erasure.Checksums[i].Algorithm != jsoniterXLMeta.Erasure.Checksums[i].Algorithm {
				t.Errorf("Expected the Erasure Checksum Algorithm to be \"%s\", got \"%s\".", unMarshalXLMeta.Erasure.Checksums[i].Algorithm, jsoniterXLMeta.Erasure.Checksums[i].Algorithm)
			}

    /**
     * Indicates whether Maven should use strict checksum verification.
     *
     * @return an {@link Optional} containing true if strict checksum verification is enabled, false if not, or empty if not specified
     */
    @Nonnull
    Optional<Boolean> strictChecksums();

    /**
     * Indicates whether Maven should use relaxed checksum verification.
     *

    int LOGON_INFO = 1;
    /**
     * Buffer type for credential information.
     */
    int CREDENTIAL_TYPE = 2;
    /**
     * Buffer type for server checksum signature.
     */
    int SERVER_CHECKSUM = 6;
    /**
     * Buffer type for privilege server (KDC) checksum signature.
     */
    int PRIVSVR_CHECKSUM = 7;

    /**
     * Buffer type for client name information.
     */
    int CLIENT_NAME_TYPE = 0xA;

	return fmt.Sprintf("Size mismatch: got %d, want %d", e.Got, e.Want)
}

// ChecksumMismatch - when content checksum does not match with what was sent from client.
type ChecksumMismatch struct {
	Want string
	Got  string
}

func (e ChecksumMismatch) Error() string {
	return "Bad checksum: Want " + e.Want + " does not match calculated " + e.Got
}

// IsChecksumMismatch matches if 'err' is hash.ChecksumMismatch

		VersionPurgeStatus:         ri.VersionPurgeStatus,
		VersionPurgeStatusInternal: ri.VersionPurgeStatusInternal,
		DeleteMarker:               true,
		UserDefined:                map[string]string{},
		Checksum:                   ri.Checksum,
	}
}

// ReplicateObjectInfo represents object info to be replicated
type ReplicateObjectInfo struct {
	Name                       string
	Bucket                     string

    /**
     * Calculates a MAC using the ARCFOUR-HMAC-MD5 algorithm.
     * This method implements the Microsoft variant of the Kerberos ARCFOUR-HMAC-MD5 checksum.
     *
     * @param keyusage the Kerberos key usage number for this operation
     * @param key the encryption key to use for MAC calculation
     * @param data the data to calculate the MAC for

	"crypto/sha256"
	"hash"
)

// New initializes a new sha256.New()
func New() hash.Hash { return sha256.New() }

// Sum256 returns the SHA256 checksum of the data.
func Sum256(data []byte) [sha256.Size]byte { return sha256.Sum256(data) }

// Size is the size of a SHA256 checksum in bytes.

// getFormat checks that the block is a valid tar header based on the checksum.
// It then attempts to guess the specific format based on magic values.
// If the checksum fails, then FormatUnknown is returned.
func (b *block) getFormat() Format {
	// Verify checksum.
	var p parser
	value := p.parseOctal(b.toV7().chksum())
	chksum1, chksum2 := b.computeChecksum()