func Parse(s string) (KMS, error) {
	v := strings.SplitN(s, ":", 2)
	if len(v) != 2 {
		return nil, errors.New("kms: invalid master key format")
	}

	keyID, b64Key := v[0], v[1]
	key, err := base64.StdEncoding.DecodeString(b64Key)
	if err != nil {
		return nil, err
	}
	return New(keyID, key)
}

// New returns a single-key KMS that derives new DEKs from the
// given key.
func New(keyID string, key []byte) (KMS, error) {

	var info checksumInfoJSON
	json := jsoniter.ConfigCompatibleWithStandardLibrary
	if err := json.Unmarshal(data, &info); err != nil {
		return err
	}
	sum, err := hex.DecodeString(info.Hash)
	if err != nil {
		return err
	}
	c.Algorithm = BitrotAlgorithmFromString(info.Algorithm)
	c.Hash = sum
	if _, err = fmt.Sscanf(info.Name, "part.%d", &c.PartNumber); err != nil {
		return err

			return "", errObjectTampered
		}
		if _, err := hex.DecodeString(object.ETag[:32]); err != nil {
			return "", errObjectTampered
		}
		if _, err := strconv.ParseInt(object.ETag[i+1:], 10, 32); err != nil {
			return "", errObjectTampered
		}
		return object.ETag, nil
	}

	etag, err := hex.DecodeString(object.ETag)
	if err != nil {
		return "", err
	}

		}
		if d != testCase.duration {
			t.Errorf("Test %d: Expected duration %d, got %d", i+1, testCase.duration, d)
		}
	}
}

func TestExpCorrect(t *testing.T) {
	signKey, _ := base64.StdEncoding.DecodeString("NTNv7j0TuYARvmNMmWXo6fKvM4o6nv/aUi9ryX38ZH+L1bkrnD1ObOQ8JAUmHCBq7Iy7otZcyAagBLHVKvvYaIpmMuxmARQ97jUVG16Jkpkp1wXOPsrF9zwew6TpczyHkHgX5EuLg2MeBuiT/qJACs1J0apruOOJCg/gOtkjB4c=")

	claimsMap := jwtm.NewMapClaims()

		}

		formValues.Set("Policy", base64.StdEncoding.EncodeToString([]byte(pp.String())))
		formValues.Set("Success_action_status", tt.SuccessActionStatus)
		policyBytes, err := base64.StdEncoding.DecodeString(base64.StdEncoding.EncodeToString([]byte(pp.String())))
		if err != nil {
			t.Fatal(err)
		}

		postPolicyForm, err := parsePostPolicyForm(bytes.NewReader(policyBytes))
		if err != nil {
			t.Fatal(err)

func NewChecksumWithType(alg ChecksumType, value string) *Checksum {
	if !alg.IsSet() {
		return nil
	}
	bvalue, err := base64.StdEncoding.DecodeString(value)
	if err != nil {
		return nil
	}
	c := Checksum{Type: alg, Encoded: value, Raw: bvalue}
	if !c.Valid() {
		return nil
	}
	return &c
}

		VersionID: [16]byte{2},
		ModTime:   1500,
		Signature: [4]byte{5, 6, 7, 8},
		Type:      DeleteType,
		Flags:     0,
	}}
	vDelMarker.meta, _ = base64.StdEncoding.DecodeString("gqRUeXBlAqZEZWxPYmqDoklExBCvwGEaY+BAO4B4vyG5ERorpU1UaW1l0xbgJlsWE9IHp01ldGFTeXOA")

	vObj := xlMetaV2ShallowVersion{header: xlMetaV2VersionHeader{
		VersionID: [16]byte{1},
		ModTime:   1000,

	if e.Type == ssekms && spaces {
		return crypto.ErrInvalidEncryptionKeyID
	}
	if e.Type == ssekms && GlobalKMS != nil {
		ctx := kms.Context{}
		if e.Context != "" {
			b, err := base64.StdEncoding.DecodeString(e.Context)
			if err != nil {
				return err
			}

			json := jsoniter.ConfigCompatibleWithStandardLibrary
			if err := json.Unmarshal(b, &ctx); err != nil {
				return err
			}
		}

}

func TestIsETagSealed(t *testing.T) {
	for i, test := range isETagSealedTests {
		etag, err := hex.DecodeString(test.ETag)
		if err != nil {
			t.Errorf("Test %d: failed to decode etag: %s", i, err)
		}
		if sealed := IsETagSealed(etag); sealed != test.IsSealed {

		}
	}()

	fields := strings.Fields(data)
	if len(fields) != 2 {
		err = fmt.Errorf("Unknown release data `%s`", data)
		return sha256Sum, releaseTime, releaseInfo, err
	}

	sha256Sum, err = hex.DecodeString(fields[0])
	if err != nil {
		return sha256Sum, releaseTime, releaseInfo, err
	}

	releaseInfo = fields[1]

	releaseTime, err = releaseInfoToReleaseTime(releaseInfo)