switch {
	case usersPrefix:
		accessKey := path.Dir(strings.TrimPrefix(event.keyPath, iamConfigUsersPrefix))
		err = sys.store.UserNotificationHandler(ctx, accessKey, regUser)
	case stsPrefix:
		accessKey := path.Dir(strings.TrimPrefix(event.keyPath, iamConfigSTSPrefix))
		err = sys.store.UserNotificationHandler(ctx, accessKey, stsUser)
	case svcPrefix:

			if err != nil {
				return nil, err
			}

			// Call hook for site replication.
			replLogIf(context.Background(), globalSiteReplicationSys.IAMChangeHook(context.Background(), madmin.SRIAMItem{
				Type: madmin.SRIAMItemSTSAcc,
				STSCredential: &madmin.SRSTSCredential{
					AccessKey:    cred.AccessKey,
					SecretKey:    cred.SecretKey,

	return nil
}

// Sign given request using Signature V2.
func signRequestV2(req *http.Request, accessKey, secretKey string) error {
	signer.SignV2(*req, accessKey, secretKey, false)
	return nil
}

// Sign given request using Signature V4.
func signRequestV4(req *http.Request, accessKey, secretKey string) error {
	// Get hashed payload.
	hashedPayload := req.Header.Get("x-amz-content-sha256")

#    endpoint: "http://127.0.0.1:9000"
#    # path: "on|off|auto" # "on" enables path-style bucket lookup. "off" enables virtual host (DNS)-style bucket lookup. Defaults to "auto"
#    credentials:
#      accessKey: minioadmin # Required
#      secretKey: minioadmin # Required
#    # sessionToken: SESSION-TOKEN # Optional only available when rotating credentials are used
    snowball: # automatically activated if the source is local

		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "AccessKey":
			z.AccessKey, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "AccessKey")
				return
			}
		case "SecretKey":
			z.SecretKey, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "SecretKey")
				return
			}

ct":"Allow","Action":["s3:PutObject"],"Resource":["arn:aws:s3:::*"]}]}} iam-assets/users.json {} iam-assets/groups.json {} iam-assets/svcaccts.json {"dillon-service-2":{"parent":"oCnAoSQFtdVQtKwrB73j","accessKey":"dillon-service-2","secretKey":"dillon-service-2","groups":null,"claims":{"accessKey":"dillon-service-2","at_hash":"LL4jvrkBRNQhOKiC83RL","aud":"minio-client-app","c_hash":"fjGB4ldChsaf9vSFdZ1P","email":"******@****.***","email_verified":true,"groups":["projecta","projectb"],"iat":172...

			accessKey:            credentials.AccessKey,
			secretKey:            credentials.SecretKey,
			expectedBucketPolicy: bucketPolicyTemplate,
			expectedRespStatus:   http.StatusNotFound,
		},
		// Test case - 3.
		// Case with non-existent bucket name.
		{
			bucketName:           ".invalid-bucket-name",
			accessKey:            credentials.AccessKey,

		adminRouter.Methods(http.MethodPut).Path(adminVersion+"/add-user").HandlerFunc(adminMiddleware(adminAPI.AddUser)).Queries("accessKey", "{accessKey:.*}")

		adminRouter.Methods(http.MethodPut).Path(adminVersion+"/set-user-status").HandlerFunc(adminMiddleware(adminAPI.SetUserStatus)).Queries("accessKey", "{accessKey:.*}").Queries("status", "{status:.*}")

		// Service accounts ops

	if duration > time.Hour || duration < time.Hour {
		// Always limit to 1 hour.
		duration = time.Hour
	}

	clnt, err := miniogo.New(host, &miniogo.Options{
		Creds:     credentials.NewStaticV4(cred.AccessKey, cred.SecretKey, cred.SessionToken),
		Secure:    secure,
		Transport: globalRemoteTargetTransport,
		Region:    globalSite.Region(),
	})
	if err != nil {
		return levent.Event{}, err
	}

)

// BatchJobReplicateCredentials access credentials for batch replication it may
// be either for target or source.
type BatchJobReplicateCredentials struct {
	AccessKey    string `xml:"AccessKeyId" json:"accessKey,omitempty" yaml:"accessKey"`
	SecretKey    string `xml:"SecretAccessKey" json:"secretKey,omitempty" yaml:"secretKey"`
	SessionToken string `xml:"SessionToken" json:"sessionToken,omitempty" yaml:"sessionToken"`
}