chkSums, _ := objInfo.decryptChecksums(0, r.Header)
		// AWS does not appear to append part number on this API call.
		if len(chkSums) > 0 {
			OA.Checksum = &objectAttributesChecksum{
				ChecksumCRC32:     strings.Split(chkSums["CRC32"], "-")[0],
				ChecksumCRC32C:    strings.Split(chkSums["CRC32C"], "-")[0],
				ChecksumSHA1:      strings.Split(chkSums["SHA1"], "-")[0],

// 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()
	if p.err != nil || (value != chksum1 && value != chksum2) {
		return FormatUnknown
	}

	// Guess the magic values.
	magic := string(b.toUSTAR().magic())
	version := string(b.toUSTAR().version())

				return
			}
			myData := []byte("this-is-a-checksum-data-test")
			chksm := NewChecksumFromData(tt.checksum, myData)
			if chksm == nil {
				t.Fatalf("NewChecksumFromData failed for %s", tt.name)
			}
			if tt.fullobj {
				chksm.Type |= ChecksumFullObject
			}

			// CRC64NVME is always full object
			if chksm.Type.Base().Is(ChecksumCRC64NVME) {
				chksm.Type |= ChecksumFullObject
			}

	for k, v := range c {
		if k == xhttp.AmzChecksumType {
			w.Header().Set(xhttp.AmzChecksumType, v)
			continue
		}
		cksum := NewChecksumString(k, v)
		if cksum == nil {
			continue
		}
		if cksum.Valid() {
			w.Header().Set(cksum.Type.Key(), v)
		}
	}
}

// GetContentChecksum returns content checksum.
// Returns ErrInvalidChecksum if so.

					return
				}
			}
		case "Checksums":
			var zb0003 uint32
			zb0003, err = dc.ReadArrayHeader()
			if err != nil {
				err = msgp.WrapError(err, "Checksums")
				return
			}
			if cap(z.Checksums) >= int(zb0003) {
				z.Checksums = (z.Checksums)[:zb0003]
			} else {
				z.Checksums = make([]ChecksumInfo, zb0003)
			}
			for za0002 := range z.Checksums {
				err = z.Checksums[za0002].DecodeMsg(dc)

    /**
     * Calculates checksums for specified data.
     *
     * @param data        The content for which to calculate checksums, must not be {@code null}.
     * @param algorithms  The checksum algorithms to use, must not be {@code null}.
     * @return The calculated checksums, indexed by algorithms, never {@code null}.

	}

	if len(unMarshalXLMeta.Erasure.Checksums) != len(jsoniterXLMeta.Erasure.Checksums) {
		t.Errorf("Expected the size of Erasure Checksums to be %d, but got %d.", len(unMarshalXLMeta.Erasure.Checksums), len(jsoniterXLMeta.Erasure.Checksums))
	} else {
		for i := 0; i < len(unMarshalXLMeta.Erasure.Checksums); i++ {
			if unMarshalXLMeta.Erasure.Checksums[i].PartNumber != jsoniterXLMeta.Erasure.Checksums[i].PartNumber {

	partInfo := ObjectPartInfo{
		Number:     partNumber,
		ETag:       partETag,
		Size:       partSize,
		ActualSize: actualSize,
		ModTime:    modTime,
		Index:      idx,
		Checksums:  checksums,
	}

	// Update part info if it already exists.
	for i, part := range fi.Parts {

}

// bitrotSelfTest performs a self-test to ensure that bitrot
// algorithms compute correct checksums. If any algorithm
// produces an incorrect checksum it fails with a hard error.
//
// bitrotSelfTest tries to catch any issue in the bitrot implementation
// early instead of silently corrupting data.
func bitrotSelfTest() {
	checksums := map[BitrotAlgorithm]string{

	// Index is the index of the current disk
	Index int `json:"index"`
	// Distribution is the distribution of the data and parity blocks
	Distribution []int `json:"distribution"`
	// Checksums holds all bitrot checksums of all erasure encoded blocks
	Checksums []ChecksumInfo `json:"checksum,omitempty"`
}

// Equal equates current erasure info with newer erasure info.
// returns false if one of the following check fails